Relevant bibliographies by topics / Press fitting / Journal articles

Journal articles on the topic 'Press fitting'

To see the other types of publications on this topic, follow the link: Press fitting.
Author: Grafiati
Published: 7 July 2024
Last updated: 7 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Press fitting.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Nwe, Theingi, and Monsak Pimsarn. "Railway Axle and Wheel Assembly Press-Fitting Force Characteristics and Holding Torque Capacity." Applied Sciences 11, no. 19 (September 23, 2021): 8862. http://dx.doi.org/10.3390/app11198862.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Nowadays, press-fitting is widely used in the manufacturing industry because it allows easy and fast installation and is repetitive, strong, and inherently reliable. The quality of a press-fitting assembly can be verified from the press-fitting curves and forced monitoring. This study aims to investigate the characteristics of the press-fitting curve with various interference railway wheelset models and determine the interference limit that axles can withstand at the maximum holding torque without slipping and without plastic deformation. A three-dimensional finite element analysis examined the maximum press-fitting force and stress distributions using Abaqus FEA software. The press-fitting curves of the railway wheel and axle assembly obtained from finite element simulation were classified following European Standard EN 13260. The press-fitting curves showed whether they fell within the boundary limits in the EN standard to allow their practical application. This study also showed when plastic deformation would occur, within the recommended interferences in the EN standard. Moreover, the effect of interference was numerically simulated for the maximum holding torque capacity within the EN standard interference range. Numeric simulation was compared with the theory: the deviation was 15–6%.
2

Saito, Ryoichi, Nao-Aki Noda, Yoshikazu Sano, Arata Miyagi, and Tomoaki Okamura. "Fatigue strength improvement of roller chain by press fitting between pin and plate." International Journal of Modern Physics B 35, no. 14n16 (May 14, 2021): 2140024. http://dx.doi.org/10.1142/s0217979221400245.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
To improve the fatigue strength of the roller chain, the fatigue test is conducted by varying the press-fitting ratio between the pin and the holed plate. To model what occurs in a chain under load, a single plate specimen is prepared by press-fitting two pins into two holes at the ends of the plate. The FEM analysis is performed to obtain the stress amplitude and the average stress. The results, in both cases demonstrate that the fatigue strength is improved by the press-fit between the pin and the hole. The fatigue improvement mechanism is discussed based on the stress analysis.
3

Olson, Jonas. "The Personal and the Fitting." Journal of Moral Philosophy 11, no. 3 (May 2, 2014): 341–52. http://dx.doi.org/10.1163/17455243-01103001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This paper is a critical notice of a recent significant contribution to the debate about fitting attitudes and value, namely Toni Rønnow-Rasmussen’s Personal Value (Oxford: Oxford University Press, 2011). In this book, Rønnow-Rasmussen seeks to analyse the notion of personal value—an instance of the notion of good for a person—in terms of fitting attitudes. The paper has three main themes: (i) Rønnow-Rasmussen’s discussion of general problems for fitting attitude analyses; (ii) his formulation of the fitting attitude analysis of personal value and the notion of ‘for someone’s sake (fss) attitudes’; and (iii) his critique of the dichotomy between agent-neutral and agent-relative reasons.
4

Nwe, Theingi, and Monsak Pimsarn. "Deterministic Stress Intensity Factor of a Railway Axle under Adverse Running Condition." Materials Science Forum 1109 (December 14, 2023): 165–71. http://dx.doi.org/10.4028/p-k75d6r.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Although railway axles are a crucial part of railway vehicles, they are susceptible to long-term failure because of repeated loads. The aim of this research is to investigate the stress intensity factor (SIF) of a surface elliptical crack on a high-speed railway axle under various operating conditions. The study employs numerical analysis to explore the impact of press-fitting, rotary bending, stable and adverse running conditions on the SIF solutions. The main findings demonstrate that adverse running conditions, such as the press-fitting force, asymmetric vehicle weight, lateral force and wheel-rail contact force, can significantly increase the SIF values and result in axle failure. The press-fitting effect and rotary bending also have a significant impact on the SIF values, highlighting their importance in the railway axle design and analysis. The outcome of this research emphasizes the significance of accurately estimating SIF values to ensure the safe and reliable performance of railway axles in adverse operating conditions.
5

YAMASHITA, Yoshihiro. "Alternative Press Fitting Using Laser for Automotive Components." Review of Laser Engineering 35, no. 12 (2007): 799–805. http://dx.doi.org/10.2184/lsj.35.799.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

SATO, Takashi, Daisuke MIZUSHIMA, Hiroya MURAKAMI, and Naoto OHTAKE. "Press Fitting and Mechanical Clinching by Ultrasonic Vibration." Journal of the Japan Society for Technology of Plasticity 53, no. 618 (2012): 611–15. http://dx.doi.org/10.9773/sosei.53.611.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Cristofolini, L., C. Metti, and M. Viceconti. "Strain patterns induced by press-fitting and by an external load in hip arthroplasty: A photoelastic coating study on bone models." Journal of Strain Analysis for Engineering Design 38, no. 4 (May 1, 2003): 289–301. http://dx.doi.org/10.1243/03093240360692887.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The success of prostheses is highly dependent upon load transfer and bone stresses. Reflection photoelasticity is a viable technique for measuring stress patterns in vitro. However, when a cementless stem is tested, the resultant stresses under load are the sum of the implantation stresses and of those induced by load application. Separating these two components is a critical issue that so far has not been thoroughly solved using photoelasticity. Implantation strains and strain under load were measured separately by a suitable procedure: the photoelastic coating was applied to the femur after stem press-fitting. Thus, when an external load is applied (e.g. to simulate a physiological activity), the fringe patterns indicate the effect of the external load alone. Implantation strains are measured independently, after load removal; the stem is extracted and stresses are released, causing a new fringe pattern. The method was used to investigate the stress pattern caused by press-fitting of two cementless hip stems and that caused by a load applied to the implanted femora. Different isochromatic and isoclinic patterns were observed for the strain distribution caused by load application and by press-fitting for two stem designs. Differences in press-fit pattern and load transfer were successfully detected between the two designs.
8

Kurniawan, Shiddiq, and Qomariyatus Sholihah. "ANALISIS KEANDALAN (RELIABILITY) PADA MESIN SCREW PRESS (STUDI KASUS : PT. PERKEBUNAN NUSANTARA XIII)." JTAM ROTARY 1, no. 1 (April 1, 2019): 55. http://dx.doi.org/10.20527/jtam_rotary.v1i1.1403.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The machine is one of the main factors of production whose role is very important in order to produce a product that conforms to the specifications set by a machine, with the amount and capacity of the machine's production. Reliability is the design of a component so that components can work according to function, without any failure, in accordance with the process already set. Screw press is a fitting machine used to squeeze moss brondolan ripe with press system and used to separate crude oil from crushed flesh (mesocarp) by squeezing. Research done on Screw Press machine that its role is quite high in PT. Perkebunan Nusantara XIII. The method used is Reliability with MTTR Method. From the calculation results obtained reliability value Screw Press engine in 2015 has the highest reliability value of 1.6408 at the time of calculation of 383.75 hours and in 2016 has a reliability value of 0.7239 at the time of calculation 415.83 hours. Screw Press engine reliability value in 2016 is higher than 2015, it is proven that the life of Screw Press engine in 2016 is more dominant than in 2015. The higher the reliability value the better the machine used in the operation process. Keywords : Reliability, Weibull, MTTR, Machine Screw Prees
9

Culhane-Pera, Kathleen A. "Belonging: The Social Dynamics of Fitting In as Experienced by Hmong Refugees in Germany and Texas, by Faith G. Nibbs." Refuge: Canada's Journal on Refugees 31, no. 2 (December 2, 2015): 98–100. http://dx.doi.org/10.25071/1920-7336.40315.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Pedroti, Leonardo Gonçalves, S. N. Monteiro, C. M. Vieira, and J. Alexandre. "Properties and Microstructure of Clay Ceramics with Granite Waste for Press-Molded Structural Block." Materials Science Forum 727-728 (August 2012): 809–14. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.809.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Extrusion of a clay body is the most applied process in the ceramic industries for manufacturing structural blocks. Nowadays, the assembly of such blocks through a fitting system is gaining attention owing to the saving in material and reducing in the cost of the building construction. However, this fitting system requires a press-molding, rather than extrusion, to allow blocks to be fabricated with different shapes. In this work, the ideal composition of clay bodies incorporated with granite powder waste was investigated for the production of press-molded ceramic blocks. An experimental design was applied to determine the optimum properties and microstructures. Press load of 15 ton and temperatures from 850 to 1050°C were considered. The results indicated that mechanical strength of 30 MPa and water absorption of 15% could be attained with the incorporation of up to 17% of granite powder waste.
11

MASTINU, Giampiero, Massimilano GOBBI, and Alessandro BON. "A Railway Wheelset Optimally Designed for Cold Press Fitting." JSME International Journal Series C 47, no. 2 (2004): 502–7. http://dx.doi.org/10.1299/jsmec.47.502.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

SHINDO, Shinichiro, Shingo TOMITA, and Yasumichi AIYAMA. "11201 Research of Press-Fitting Operation with Impact Manipulation." Proceedings of Conference of Kanto Branch 2007.13 (2007): 283–84. http://dx.doi.org/10.1299/jsmekanto.2007.13.283.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Poruba, Zdenek, and Jan Szweda. "Influence of Manufacturing Process on Stress Distributions in Mechanical Parts." Applied Mechanics and Materials 465-466 (December 2013): 631–36. http://dx.doi.org/10.4028/www.scientific.net/amm.465-466.631.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The presented paper deals with the influence of manufacturing process on the stress state of mechanical parts. The problem is presented in the assembly of the belt drum. The connections of individual parts are realized by press fitting and welding technology. The practical use of the belt drum shows the initiation of cracks in the weld body. The presence of press fitting connection in the structure is marked as the origin of high stresses in the weld body. The paper proposes the new assembly method in order to reduce the stress level in the weld structure and points the assembly method as one of important factors influencing the stress state of mechanical parts.
14

Wang, Xingyuan, Zhifeng Lou, Xiaodong Wang, Yue Wang, Xiupeng Hao, and Zhize Wang. "Automatic press-fit assembly of small precision interference fitting parts: armature of electro-hydraulic servo valve." Assembly Automation 39, no. 5 (November 4, 2019): 986–98. http://dx.doi.org/10.1108/aa-08-2018-112.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Purpose The purpose of this paper is to design an automatic press-fit instrument to realize precision assembly and connection quality assessment of a small interference fitting parts, armature. Design/methodology/approach In this paper, an automatic press-fit instrument was developed for the technical problems of reliable clamping and positioning of the armature, automatic measurement and adjustment of the attitude and evaluation of the connection quality. To compensate for the installation error of the equipment, corresponding calibration method was proposed for each module of the instrument. Assembly strategies of axial displacement and perpendicularity were also proposed to ensure the assembly accuracy. A theoretical model was built to calculate the resistant force generated by the non-contact regions and then combined with the thick-walled cylinder theory to predict the press-fit curve. Findings The calibration method and assembly strategy proposed in this paper enable the press-fit instrument to achieve good alignment and assembly accuracy. A reasonable range of press-fit curve obtained from theoretical model can achieve the connection quality assessment. Practical implications This instrument has been used in an armature assembly project. The practical results show that this instrument can assemble the armature components with complex structures automatically, accurately, in high-efficiency and in high quality. Originality/value This paper provides a technical method to improve the assembly quality of small precision interference fitting parts and provides certain methodological guidelines for precision peg-in-hole assembly.
15

Weis, Jan, Jonas Persson, Andreas Frick, Fredrik Åhs, Maarten Versluis, and Daniel Alamidi. "GABA quantification in human anterior cingulate cortex." PLOS ONE 16, no. 1 (January 15, 2021): e0240641. http://dx.doi.org/10.1371/journal.pone.0240641.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
γ-Aminobutyric acid (GABA) is a primary inhibitory neurotransmitter in the human brain. It has been shown that altered GABA concentration plays an important role in a variety of psychiatric and neurological disorders. The main purpose of this study was to propose a combination of PRESS and MEGA-PRESS acquisitions for absolute GABA quantification and to compare GABA estimations obtained using total choline (tCho), total creatine (tCr), and total N-acetyl aspartate (tNAA) as the internal concentration references with water referenced quantification. The second aim was to demonstrate the fitting approach of MEGA-PRESS spectra with QuasarX algorithm using a basis set of GABA, glutamate, glutamine, and NAA in vitro spectra. Thirteen volunteers were scanned with the MEGA-PRESS sequence at 3T. Interleaved water referencing was used for quantification, B0 drift correction and to update the carrier frequency of RF pulses in real time. Reference metabolite concentrations were acquired using a PRESS sequence with short TE (30 ms) and long TR (5000 ms). Absolute concentration were corrected for cerebrospinal fluid, gray and white matter water fractions and relaxation effects. Water referenced GABA estimations were significantly higher compared to the values obtained by metabolite references. We conclude that QuasarX algorithm together with the basis set of in vitro spectra improves reliability of GABA+ fitting. The proposed GABA quantification method with PRESS and MEGA-PRESS acquisitions enables the utilization of tCho, tCr, and tNAA as internal concentration references. The use of different concentration references have a good potential to improve the reliability of GABA estimation.
16

Hatami, F., and A. Varvani-Farahani. "Local Ratcheting at the Notch Region of Non-Press-Fitted and Press-Fitted Al 7075-T6 Samples Undergoing Asymmetric Stress Cycles." Metals 13, no. 9 (September 2, 2023): 1549. http://dx.doi.org/10.3390/met13091549.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The present study evaluated the ratcheting response of notched and press-fitted Al 7075-T6 specimens under stress-controlled asymmetric cycles. The degree of the interference fit (DIF) directly influenced the magnitude and the rate of progressive plastic strain at the notch edge region. Local ratcheting at the hole–pin interference region was analyzed by means of two kinematic-hardening rules—the Ahmadzadeh–Varvani (A–V) rule and the Chaboche rule—coupled with the Neuber rule. Ratcheting strains at the notch root of aluminum samples with DIF = 0 (non-press-fitting samples) were measured and found to be the highest in magnitude. For the press-fitted samples, however, ratcheting strains dropped noticeably as the DIF increased from 1% to 2%. The press-fitting process plastically deformed the perimeter edges of the notches and improved the materials strength locally at the notch edges, resulting in better resistance against ratcheting progress. Local ratcheting strains at distances of 0.5, 1.3, and 3.0 mm from the notch roots were predicted for both pinned and unpinned samples via the hardening rules and were compared with those of measured ratcheting values. The ratcheting curves predicted by means of the A-V and Chaboche hardening rules closely agreed with the experimental data. The predicted ratcheting curves were positioned, respectively, above and below the measured ratcheting data.
17

Han, Wen Jia, Da Sen Bi, Sen Li, Ya Bin Guan, and Guang Yang. "Lower Beam of the Heavy Isothermal Forging Hydraulic Press Compare between Rigidity Test and Simulated Result." Applied Mechanics and Materials 577 (July 2014): 166–69. http://dx.doi.org/10.4028/www.scientific.net/amm.577.166.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Hydraulic press occur elastic deformations in the working status. The deformation will affect the precision of the products. This paper expounds the method of using Laser tracker test rigidity of THP11-10000A isothermal forging hydraulic press. And we test the deformation of the lower bean, fit the date and compare with fitting of the finite element simulation results. The validity and the accuracy of the simulation results are verified.
18

MATSEN, FREDERICK A., JOSEPH P. IANNOTTI, and CHARLES A. ROCKWOOD. "HUMERAL FIXATION BY PRESS-FITTING OF A TAPERED METAPHYSEAL STEM." Journal of Bone and Joint Surgery-American Volume 85, no. 2 (February 2003): 304–8. http://dx.doi.org/10.2106/00004623-200302000-00018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Mastinu, Giampiero, Massimiliano Gobbi, and Alessandro Bon. "D403 A RAILWAY WHEELSET OPTIMALLY DESIGNED FOR COLD PRESS FITTING." Proceedings of International Symposium on Seed-up and Service Technology for Railway and Maglev Systems : STECH 2003 (2003): 425–30. http://dx.doi.org/10.1299/jsmestech.2003.425.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Irena, Kitesa Akewaq, Hirpa G. Lemu, and Yahiya Ahmed Kedir. "Effect of Interference Size on Contact Pressure Distribution of Railway Wheel Axle Press Fitting." Designs 7, no. 5 (October 22, 2023): 119. http://dx.doi.org/10.3390/designs7050119.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Mechanical couplings in engineering usually use interference fits to connect the shaft and hub. A railway wheel axle is a press fit that is connected by interference and can be subjected to bending stress. In loaded press fits, a high concentration of contact stresses can be generated in the area of the axle-fillet beam, which in most cases leads to the failure of the axle due to fatigue and fretting fatigues. Therefore, it is crucial to determine the ability of the press-fitted joints to provide sufficient frictional resistance that can withstand the loads and torques by evaluating the safety factor, especially when the mechanical or structural system is loaded. In this paper, the contact pressure and stress distribution along the radius of the wheel axle are studied using the analytical calculation of Lame’s equation, and the numerical method used is by ANSYS software. It was found that interference fits have a great influence on the connection strength of interference fits, which are directly related to the contact pressure. Increasing the interference increases the contact pressure, which allows higher torque and load capacity to be transmitted. The finite element analysis showed good agreement for the highest interference value of 230 µm with a relative error of 1.4%, while this error increased to the maximum relative error of 14.33% for a minimum interference of 100 µm.
21

ODA, Satoshi, Kouitsu MIYACHIKA, Takao KOIDE, and Takashi UCHINO. "Root stresses of thin-rimmed spur gears due to press-fitting." JSME international journal. Ser. 3, Vibration, control engineering, engineering for industry 33, no. 2 (1990): 238–44. http://dx.doi.org/10.1299/jsmec1988.33.238.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

ODA, Satoshi, Kouitsu MIYACHIKA, Takao KOIDE, and Takashi UCHINO. "Root stresses of thin-rimmed spur gears due to press-fitting." Transactions of the Japan Society of Mechanical Engineers Series C 55, no. 512 (1989): 986–92. http://dx.doi.org/10.1299/kikaic.55.986.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Bogomolov, R. M., V. I. Kremlev, N. V. Nosov, V. A. Papshev, B. L. Shtrikov, and V. G. Shuvaev. "Automated system for ultrasonic press-fitting of rolling cutter bit teeth." Chemical and Petroleum Engineering 43, no. 9-10 (September 2007): 631–35. http://dx.doi.org/10.1007/s10556-007-0113-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Radford, BJ. "Effect of a press wheel and depth of sowing on the establishment of semidwarf and tall wheats." Australian Journal of Experimental Agriculture 26, no. 6 (1986): 697. http://dx.doi.org/10.1071/ea9860697.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The effects of sowing with a press wheel on the seedling establishment of semidwarf (Banks, Cook, Shortim, 7605) and tall (Gatcher, Spica) wheats at various sowing depths (3.5-13 cm) were studied in factorial experiments in 14 sowings at 7 sites in Queensland. Establishment was generally lower with the semidwarf cultivars. A sowing depth of about 5.5 cm was optimum for wheat establishment when no rain fell between sowing and emergence. However, consistent placement of seed at the optimum depth requires level seedbeds or planting machinery with accurate depth control. Sowing with a press wheel increased the establishment of both semidwarf and tall cultivars at all depths of sowing. Semidwarf cultivars sown using the press wheel gave establishment equal to or better than tall cultivars sown without press wheel pressure. Highest establishment was obtained when tall cultivars were sown using a press wheel. The fitting of press wheels to wheat planters is recommended.
25

Hoornenborg, Daniël, Justin Van Loon, Sheryl De Waard, Inger N. Sierevelt, Kim T. M. Opdam, Gino M. M. J. Kerkhoffs, and Daniël Haverkamp. "Dynamic trial fitting of the cup in press-fit total hip arthroplasty, a feasibility study." Acta Orthopaedica Belgica 87, no. 2 (June 30, 2021): 327–31. http://dx.doi.org/10.52628/87.2.18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Trial fitting of the cup during total hip arthroplasty (THA) is done by trial cups, which do not resemble the real press-fit obtained by the definitive implant. Our goal is to judge feasibility of the X-pander® in clinical practice ; a device developed to mimic the real press-fit obtained by the definitive cup, to ensure satisfactory press-fit. In this feasibility study 45 experienced orthopaedic surgeons from 7 European countries filled in a structured survey after 78 primary THA and 31 revision surgeries, using the X-pander instead of traditional trial cups. Primary outcomes were decision change concerning cup size or further reaming and increased confidence regarding cup insertion and size. Additionally, potential association between the primary outcomes and procedure (primary or revi- sion), bone quality and experience of the surgeon were evaluated. In 33.3% of the primary and 32.2% of the revision cases the X-pander measurement changed the deci- sion and further reaming or change of cup size was decided. In 61.5% and 58.1% of respectively the primary and revision THAs the X-pander was judged to give fairly to much more reliable information than traditional trial cups. The X-pander could lead to less additional screw fixation, as stated in 37.2% of the primary and 25.8% of the revision cases and to better cup insertion in respectively 50.0% and 51.6%. This study validates that the X-pander may be a suitable option for accurate sizing and assessment of the reamed acetabulum and could replace traditional trial cups in THA.
26

Conway, Maura, and Lisa McInerney. "What’s love got to do with it? Framing ‘JihadJane’ in the US press." Media, War & Conflict 5, no. 1 (March 30, 2012): 6–21. http://dx.doi.org/10.1177/1750635211434373.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The purpose of this article is to compare and contrast the US press coverage accorded to female terrorist plotter, Colleen LaRose, with that of two male terrorist plotters in order to test whether assertions in the academic literature regarding media treatment of women terrorists stand up to empirical scrutiny. The authors employed TextSTAT software to generate frequency counts of all words contained in 150 newspaper reports on their three subjects and then slotted relevant terms into categories fitting the commonest female terrorist frames, as identified by Nacos’s article in Studies in Conflict and Terrorism (2005). The authors’ findings confirm that women involved in terrorism receive significantly more press coverage and are framed vastly differently in the US press than their male counterparts.
27

Moya, Iván A., and Rebecca Connolly. "Pride in paramedicine: being an LGBTQ+ paramedic." Journal of Paramedic Practice 13, no. 7 (July 2, 2021): 300–301. http://dx.doi.org/10.12968/jpar.2021.13.7.300.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
As Pride celebrations kick off worldwide and the current issue of the Journal of Paramedic Press is sent to the printers on 28 June—the very date in history that the first Pride March was held in New York City in 1970—it seems fitting to celebrate Pride in paramedicine and hear from some paramedics in the LGBTQ+ community
28

Gajjar, Bhavya R., and Saurin Sheth. "Design and Automation in Back Plug Press Fitting Process of Ball Pen Assembly." Applied Mechanics and Materials 592-594 (July 2014): 2596–600. http://dx.doi.org/10.4028/www.scientific.net/amm.592-594.2596.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
In today’s era automation in the production is a key parameter of interest. Rise in the productivity is the main aim of every industry. To sustain in the global era many companies are switching their assembly line from manual to automatic. Consequently, assembly systems should be more flexible and efficient. Even which process needs the automation should be justified to make it automatic. The amount of automation and payback period plays an important role. On that basis authors identify the back plug process needs to be automate. So an attempt is made to design an Automatic Back Plug Press Fitting Process. The paper describes the design, modeling and manufacturing aspects of this process. In automation decisions, it is necessary to consider human resources, as well as mechanical technology and information flow. The paper also includes rise in the productivity along with payback period.
29

Čapek, Jiří, Karel Trojan, Jan Kec, Nikolaj Ganev, Ivo Černý, and Tomáš Mužík. "Residual Stresses and the Microstructure of Modeled Laser-Hardened Railway Axle Seats under Fatigue." Metals 14, no. 3 (February 29, 2024): 290. http://dx.doi.org/10.3390/met14030290.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Railway wheels are usually attached to axles by press-fitting; therefore, the mechanical processes taking place during operation can result in failure, with fatal consequences for the axle seats. This manuscript describes the effect of laser hardening on the residual stress state, microstructural parameters (lattice defects—dislocations, crystallites, microstrains, etc.), and mechanical properties of laser-hardened EA1N steel railway axles under fatigue life conditions. Differences were found between ground, single-track, and multi-track hardened surfaces. Tensile residual stresses, low dislocation densities and hardnesses, and different microstructures (tempered cubic martensite) were found at the overlapped tracks and at the boundary of the heat-affected zone and bulk surface compared with the hardened zone. As a result, the surface treatment of axle seats by laser hardening improved the fatigue failure resistance compared with untreated seats. Optimal properties of the integrity of the axle seat surface were achieved, including fatigue resistance, which seems to be positively influenced mainly by sufficient hardness and the appropriate microstructure. The influence of the other investigated parameters was not evident, and was reduced by the presence of fretting corrosion and press-fitting.
30

Kim, Bumcho, and Gunhee Jang. "TuB-2-1 ROBUST SHAFT DESIGN AGAINST SHAFT DEFORMATION IN HUB PRESS-FITTING AND DISK CLAMPING PROCESS OF A 2.5" HDD." Proceedings of JSME-IIP/ASME-ISPS Joint Conference on Micromechatronics for Information and Precision Equipment : IIP/ISPS joint MIPE 2015 (2015): _TuB—2–1–1—_TuB—2–1–3. http://dx.doi.org/10.1299/jsmemipe.2015._tub-2-1-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Imai, Yusuke, Seungki Kim, Hiroyuki Hiraoka, and Hiroshi Kawaharada. "Edge-Based Quadrilateral Mesh Fitting Using Normal Vector Diffusion." International Journal of Automation Technology 9, no. 6 (November 5, 2015): 756–64. http://dx.doi.org/10.20965/ijat.2015.p0756.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Nowadays, many manufacturers use computer-aided design (CAD) for processes such as computer numerical control (CNC) machining, simulations, and press working. They use CAD models for their simulations because the cost of performance simulations is lower than that of actual product testing. In this paper, we consider hexahedral meshes for finite element analysis because simulations using such meshes are more accurate than those using tetrahedral meshes. Our aim is to automatically generate hexahedral meshes with sharp features that precisely represent the corresponding features of the target shape. Our hexahedral mesh generation algorithm is voxel-based, and thus in our previous studies, we fitted the surface of voxels to the target surface using Laplacian energy minimization. We used normal vectors during the fitting to preserve any existing sharp features. Each face of the boundary surface of a hexahedral mesh is a quadrilateral face, which we consider to consist of four triangles. Herein, we assume that an edge of a quadrilateral surface has four normal vectors of four connected triangles. Here, we diffuse normal vectors of the target shape after extracting them to accurately preserve the shape features. Moreover, for the Laplacian energy, we add a term that matches the normal vector of the target shape with the four normal vectors of a boundary edge. Finally, we present some experimental results using our method.
32

Kasuga, Yukio, T. Okai, and Shigehiro Kawamori. "Joining of Polycarbonate Ring/Disk to Metal Sheet/Shaft and its Easy Disassembly." Advanced Materials Research 83-86 (December 2009): 881–88. http://dx.doi.org/10.4028/www.scientific.net/amr.83-86.881.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
For the possibility of easy disassembly of a joint assisted by strain recovery, the joint is fabricated with a cold rolled circular polycarbonate (PC) disk embedded in the center of an aluminium or a PC disk. Also, a shaft and a hollow circular disk are assembled by compressing or press fitting a cold rolled PC ring into the gap between them. First, the cold rolled polycarbonate disk is heat treated and the change in geometry is examined. Secondly, in order to evaluate joint strength, shear force and torque of the assembled joints are discussed with regard to reduction in thickness, tool clearance and interference. Lastly, joints are heat treated and the disassembly is checked. The cold rolled disk is recovered with the temperature 190°C for 20min. In embedding, disk compression in addition to rolling reduction is effective in increasing joint strength. In fabricating the shaft/disk joint, deformation of polycarbonate was not effective due to the recovery in room temperature after joining, while press fitting of the polycarbonate ring could fabricate the assembly. Heat treatment helped the joint to be automatically disassembled. The directly joined parts became completely apart, but the shaft/disk joint was disassembled only between the ring and the disk.
33

Rao, Jian Hua, Q. F. Shen, and C. Wang. "Analysis of Assembling and Working Stress of Compound Rings High-Pressure Vessel of 5GPa." Advanced Materials Research 97-101 (March 2010): 2603–6. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.2603.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
To improve the working performance of the compound rings high-pressure vessel, the different assembly and structural parameters during the process of radial and axial preloading have been analyzed with the finite element method. The simulation analysis on the assembly process of room temperature press-fitting has been carried out based on the theory of contact problem with friction, and it is found that the tangential compressive prestress is uneven under the influence of friction coefficient and conicity of fitting surfaces. The main effect factors of horizontal fracture of cemented carbide core are also analyzed. Furthermore, the results of reducing the axial stress of core by different ways of applying end pressure are compared. These studies provide the guidance for the improvement in design and manufacture of compound rings.
34

Wang, Ting, Hanfei Guo, Jianjun Qiao, Xiaoxue Liu, and Zhixin Fan. "Experimental study on the relationship between the friction coefficient and interference in locomotive axle press-fitting." International Journal of Structural Integrity 12, no. 6 (October 8, 2021): 878–93. http://dx.doi.org/10.1108/ijsi-01-2021-0007.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
PurposeTo address the lack of data in this field and determine the relationship between the coefficient of friction and the interference between locomotive wheels and axles, this study evaluates the theoretical relationship between the coefficient of friction and the interference under elastic deformation.Design/methodology/approachWhen using numerical analyses to study the mechanical state of the contacting components of the wheels and axle, the interference between the axle parts and the coefficient of friction between the axle parts are two important influencing factors. Currently, as the range of the coefficient of friction between the wheel and axle in interference remains unknown, it is generally considered that the coefficient of friction is only related to the materials of the friction pair; the relationship between the interference and the coefficient of friction is often neglected.FindingsA total of 520 press-fitting experiments were conducted for 130 sets of wheels and axles of the HXD2 locomotive with 4 types of interferences, in order to obtain the relationship between the coefficient of friction between the locomotive wheel and axle and the amount of interference. These results are expected to serve as a reference for selecting the coefficient of friction when designing axle structures with the rolling stock, research on the press-fitting process and evaluations of the fatigue life.Originality/valueThe study provides a basis for the selection of friction coefficient and interference amount in the design of locomotive wheels and axles.
35

안영명 and Youngbae Park. "Deformation of Acetabular Cup due to the Press-fitting in Total Hip Arthroplasty." Journal of the Korean Society of Mechanical Technology 10, no. 3 (September 2008): 35–41. http://dx.doi.org/10.17958/ksmt.10.3.200809.35.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Nwe, Theingi, and Monsak Pimsarn. "Effect of interference on the press fitting of railway wheel and axle assemblies." IOP Conference Series: Materials Science and Engineering 1137, no. 1 (May 1, 2021): 012051. http://dx.doi.org/10.1088/1757-899x/1137/1/012051.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Wang, Xingyuan, Zhifeng Lou, Xiaodong Wang, and Chonglin Xu. "A new analytical method for press-fit curve prediction of interference fitting parts." Journal of Materials Processing Technology 250 (December 2017): 16–24. http://dx.doi.org/10.1016/j.jmatprotec.2017.06.022.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Lee, In-Kyu, Sung-Yun Lee, Sang-Kon Lee, Myeong-Sik Jeong, Bong-Joon Kim, and Won-Gwang Joo. "Study on Effect of Shapes of Serration of Joining Plane on Joining Characteristics for the Aluminum–Steel Multi-Materials Press Joining Process." Materials 13, no. 24 (December 9, 2020): 5611. http://dx.doi.org/10.3390/ma13245611.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Recently, mechanical joining processes have received much attention for joining multi-materials. In particular, these processes have a great demand in the automobile industry for weight reduction. The press-fitting process is a representative mechanical joining process. In this process, the shape of the interfacial serration on the joining plane is very important because it has a significant effect on the joining strength. In this study, the characteristics of the aluminum–steel press joining process were investigated according to the shape of the interfacial serration of the joining plane. The deformation of the material and the forming load were investigated by conducting finite element analysis. In addition, the unfilled height of the material, joining force, and torque were measured experimentally.
39

Thompson, Richard B., and Peter S. Allen. "The role of the N-acetylaspartate multiplet in the quantification of brain metabolites." Biochemistry and Cell Biology 76, no. 2-3 (May 1, 1998): 497–502. http://dx.doi.org/10.1139/o98-065.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
N-Acetylaspartate, whose methyl singlet is the primary magnetic resonance marker of neuronal dysfunction, also gives rise to a sequence-dependent, strongly coupled multiplet that overlaps the resonances of several other metabolites. Results are presented in this paper of a full numerical calculation of the response of the strongly coupled aspartate multiplet of N-acetylaspartate to a PRESS pulse sequence employing practical slice-selective pulses. These calculations, confirmed by experiments on phantoms, demonstrate the ability to predict the dependence of the response of strongly coupled spins on pulse design, as well as on interpulse evolutions, thereby facilitating a more rigorous comparison of the use of spectral fitting routines employed to extract metabolite concentrations on different instruments.Key words: magnetic resonance spectroscopy, N-acetylaspartate, NAA, brain, quantification, PRESS.
40

Park, Myung Beom, and Nam Hee Cho. "Determination of Diffusion Kinetic Parameters and Potential Barrier Height at the Grain Boundary of the Semiconducting SrTiO3 Ceramics." Materials Science Forum 449-452 (March 2004): 733–36. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.733.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
The chemical and electrical characteristics of the grain boundary of the polycrystalline semiconducting SrTiO3 ceramics, which were synthesized by hot-press sintering Na-coated semiconducting SrTiO3 powders, were investigated in terms of process parameters such as sintering temperature. Diffusion kinetic parameters such as diffusion coefficients and activation energy of diffusing ions at particular heat-treatment conditions were obtained by fitting experimental data with computer-simulated results as well as electrical features near the grain boundary of the ceramics.
41

Vasilya, Sinitsyna, and Sinitsyn Anton. "Finite-Element Analysis of Parts Stress State of Tight Joint Assembled by Press Fitting." Modern Mechanical Engineering 04, no. 04 (2014): 198–206. http://dx.doi.org/10.4236/mme.2014.44019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
42

HAVRAN, VOLODYMYR. "DETERMINING THE WEIGHT OF OIL EXTRACTED WITH A SCREW PRESS USING A STRAIN GAUGE SENSOR, HX711 MODULE, AND ARDUINO." Herald of Khmelnytskyi National University. Technical sciences 331, no. 1 (February 29, 2024): 73–76. http://dx.doi.org/10.31891/2307-5732-2024-331-12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
This research presents an automated system for quantifying oil extracted from a screw press, leveraging a strain gauge sensor and HX711 module in synergy with the Arduino platform. This innovative setup measures the target mass of extracted oil, wherein the collected data is further processed by an Arduino microcontroller. User-defined measurement parameters, such as specific oil mass, dictate when the system terminates the screw press operation. Hitting the set oil mass triggers the Arduino microcontroller to halt the press, allowing for the conservation of raw materials and energy, and consequently ensuring product quality consistency. Conversely, if the desired mass value remains unreached, the extraction continues until fulfillment of target outcomes. This approach optimizes press use, manifesting in maximum efficiency and selectivity in the production process. It demonstrates how such a control system can automate measurement and production supervision, thus fostering optimal screw press operation. The article suggests the solution for integrating Arduino, HX711 module, and strain gauge sensor to measure the weight of the oil extracted through the screw press. The strain gauge and HX711 module were programmed within the Arduino Integrated Development Environment, enabling the accurate measurement of extracted oil mass and data transference to the Arduino controller. A housing bracket 3D model for the strain gauge and HX711 module within the existing screw press was also created using 3D modelling and subsequently printed and implemented. This aids reliable sensor fitting and ensures system stability for oil mass measurement. This study demonstrates the potential for implementing this advancement within pre-existing press infrastructures with minimal changes. Our methodology offers prospective enhancements in quality and efficiency, notably within the oil production domain.
43

Piętosa, Jarosław, Wojciech Paszkowicz, Roman Minikayev, Jakub Nowak, Christian Lathe, and Christine Martin. "Compressibility of CaMnO3: A study using a large-volume diffraction press." Powder Diffraction 26, no. 3 (September 2011): 262–66. http://dx.doi.org/10.1154/1.3624904.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
CaMnO3 is a parent compound for various manganite systems exhibiting useful physical properties. Therefore, its structural and elastic properties are of general interest. In this paper, P–V equation of state of stoichiometric CaMnO3 is determined using energy dispersive X-ray diffraction. The measurements were carried out at a synchrotron beamline F2.1 (Hasylab, DESY) with samples compressed in a cubic-anvil diffraction press, MAX80, for pressures ranging up to 4.84 GPa. The experimental bulk modulus of CaMnO3, derived from the variation in the unit-cell volume with pressure by fitting the Birch–Murnaghan equation of state, is 154.4(3.3) GPa. The results are discussed on the basis of experimental and theoretical data for CaMnO3 and related compounds.
44

Xiao, Jun, Kai Qiang Zhou, Ren Zhou, Zhen Dong Lu, Meng Meng Yang, and Mo Zhou. "Construction of Contact Model of Wheelset Assembly Surface Based on ABAQUS." Applied Mechanics and Materials 577 (July 2014): 236–39. http://dx.doi.org/10.4028/www.scientific.net/amm.577.236.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
In order to improve quality of wheelset assembly, a method for calculating interference between two sliding asperities that corresponding to the wheelset assembly interference is presented. A finite element model of sliding spherical asperity has been built with the finite element software ABAQUS to analyze the interaction among mating surface roughness, stress-strain state and press-fit curve. This study shows that final fitting force greatly increases with roughness when roughness is lower then 1.8μm and it is unpredicted when roughness is higher. Contact stress and friction coefficient between mating surfaces increase with roughness.
45

Rosmaladewi Talli and Ana Aulia Ilmi. "Prosedur Pembuatan Jacket Crown Berbahan IPS E-Max Press Pada Gigi Incisivus Centralis Regio Maxilla Sinistra." INHEALTH : INDONESIAN HEALTH JOURNAL 1, no. 1 (February 11, 2022): 35–47. http://dx.doi.org/10.56314/inhealth.v1i1.22.

Full text
APA, Harvard, Vancouver, ISO, and other styles
Abstract:
Gigi berperan penting terhadap estetik wajah dan kepribadian seseorang, serta berfungsi sebagai aIat bantu pada saat berbicara dan mengunyah makanan. All porcelain tipe IPS e.max press adalah salah satu bahan porcelain berupa ingot lithium disicilicate glass ceramic highly aesthetic, memberikan homogenitas yang optimal dan memiliki kekuatan tinggi untuk memberikan restorasi cekat yang akurat. Penelitian ini bertujuan untuk menggambarkan Prosedur Pembuatan Jacket Crown Berbahan IPS E-Max Pada Gigi Incisivus Centralis Regio Maxilla Sinistra. Metode tata laksana kasus : prosedur laboratorium dilaksanakan di laboratorium Natural Center Makassar. Pengumpulan data dilakukan dengan wawancara, observasi dan studi dokumen. Sampel yang digunakan adalah model study hasil cetakan rahang pasien yang dikirim ke laboratorium Natural Center, Makassar. Berdasarkan hasil penelitian prosedur pembuatan crown dari model tergambarkan dari analisis model kerja, ditching, coating, coping malam, spruing, pemasangan crusibel, investing, burn out, inject, pressing, divesting, sandblasting, pemotongan sprue, fitting dan grinding, whasing, pengaplikasian , margin dan dentin firing , fitting dan grinding, selanjutnya staining dan glazing. Pada saat pembuatan crown, peneliti menemukan kendala yaitu pemasangan sprue yang terlalu panjang sehingga bahan ingot tidak masuk sempurna pada saat pressing. Kesimpulan : Pembuatan Jacket Crown Berbahan IPS E-Max Pada Gigi Incisivus Centralis Regio Maxilla Sinistra memberikan hasil yang memuaskan dan mampu mengembalikan fungsi stomatognatik pasien.
46

Atkinson, T. "Fitting contact lenses By ?, 135 pp., 15 illus., Raven Press, New York, 1984, US $14.50." Ophthalmic and Physiological Optics 5, no. 4 (1985): 467. http://dx.doi.org/10.1016/0275-5408(85)90015-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

SHINDO, Shinichiro, Shingo TOMITA, and Yasumichi AIYAMA. "2A1-F01 Realization of Press-fitting Operation by Impact Manipulation with a Under-actuated Manipulator." Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2007 (2007): _2A1—F01_1—_2A1—F01_4. http://dx.doi.org/10.1299/jsmermd.2007._2a1-f01_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Engh, Charles A., Robert H. Hopper, and C. Anderson Engh. "Long-term porous-coated cup survivorship using spikes, screws, and press-fitting for initial fixation." Journal of Arthroplasty 19, no. 2 (February 2004): 254. http://dx.doi.org/10.1016/j.arth.2003.12.002.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Engh, Charles A., Robert H. Hopper, and C. Anderson Engh. "Long-term porous-coated cup survivorship using spikes, screws, and press-fitting for initial fixation." Journal of Arthroplasty 19, no. 7 (October 2004): 54–60. http://dx.doi.org/10.1016/j.arth.2004.06.004.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Polovinko, V. D., and I. N. Golubova. "Broadening of the production capabilities of electrohydropulse press fitting of tubes with use of adapters." Chemical and Petroleum Engineering 26, no. 10 (October 1990): 530–32. http://dx.doi.org/10.1007/bf01148001.

Full text
APA, Harvard, Vancouver, ISO, and other styles

To the bibliography