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Journal articles on the topic 'Asymmetric braking'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2023

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1

Chen, Xiaolei, Zhiyong Dai, Hui Lin, Yanan Qiu, and Xiaogeng Liang. "Asymmetric Barrier Lyapunov Function-Based Wheel Slip Control for Antilock Braking System." International Journal of Aerospace Engineering 2015 (2015): 1–10. http://dx.doi.org/10.1155/2015/917807.

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As an important device of the aircraft landing system, the antilock braking system (ABS) has a function to avoid aircraft wheels self-locking. To deal with the strong nonlinear characteristics, complex nonlinear control schemes are applied in ABS. However, none of existing control schemes focus on the braking operating status, which directly reflects wheels self-locking degree. In this paper, the braking operating status region is divided into three regions: the healthy region, the light slip region, and the deep slip region. An ABLF-based wheel slip controller is proposed for ABS to constrain

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2

He, Youguo, Chuandao Lu, Jie Shen, and Chaochun Yuan. "Design and Analysis of Output Feedback Constraint Control for Antilock Braking System with Time-Varying Slip Ratio." Mathematical Problems in Engineering 2019 (January 3, 2019): 1–11. http://dx.doi.org/10.1155/2019/8193134.

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This paper is concerned with the problem of constraint control for an Antilock Braking System (ABS) with time-varying asymmetric slip ratio constraints. A quarter vehicle braking model with system uncertainties and a Burckhardt’s tire model are considered. The Time-varying Asymmetric Barrier Lyapunov Function (TABLF) is embedded into the controllers for handling the time-varying asymmetric slip ratio constraint problems. Two adaptive nonlinear control methods (TABLF1 and TABLF2) based on TABLF are proposed not only to track the optimal slip ratio but also to guarantee no violation on the slip

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3

Dementyev, Y. V., A. V. Krutashov, and O. I. Deev. "Efficiency of a hybrid power plant at emergency braking." Izvestiya MGTU MAMI 9, no. 1-1 (2015): 39–43. http://dx.doi.org/10.17816/2074-0530-67203.

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4

Zhulay, Vladimir, Yuriy Ustinov, Vitaliy Tyunin, and Aleksey Shchienkо. "Operation of a traction machine’s wheel mover with a locked asymmetrical balance bar." MATEC Web of Conferences 341 (2021): 00011. http://dx.doi.org/10.1051/matecconf/202134100011.

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The problems of determining the parameters of a traction machine’s wheel mover with a locked asymmetrical balance bar operation, taking into account the kinematic mismatch arising from the redistribution of the vertical reactions at the driving wheels due to off-center pushing force, have been considered. An algorithm for calculating traction and braking forces, as well as drive wheels’ slippage and skid of an asymmetric balance bar based on their traction balance and the condition of equal actual speeds under a variable vertical load, have been presented. As a result of research it has been f

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He, Youguo, Chuandao Lu, Jie Shen, and Chaochun Yuan. "Design and analysis of output feedback constraint control for antilock braking system based on Burckhardt’s model." Assembly Automation 39, no. 4 (2019): 497–513. http://dx.doi.org/10.1108/aa-08-2018-0119.

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Purpose The purpose of this study is to improve vehicles’ brake stability, the problem of constraint control for an antilock braking system (ABS) with asymmetric slip ratio constraints is concerned. A nonlinear control method based on barrier Lyapunov function (BLF) is proposed not only to track the optimal slip ratio but also to guarantee no violation on slip ratio constraints. Design/methodology/approach A quarter vehicle braking model and Burckhardt’s tire model are considered. The asymmetric BLF is introduced into the controller for solving asymmetric slip ratio constraint problems. Findin

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Steczek, Marcin, Piotr Chudzik, and Adam Szeląg. "Application of a Non-carrier-Based Modulation for Current Harmonics Spectrum Control during Regenerative Braking of the Electric Vehicle." Energies 13, no. 24 (2020): 6686. http://dx.doi.org/10.3390/en13246686.

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The regenerative braking of railway vehicles is widely used in DC railway systems all over the world. This mode of operation provides an opportunity to reuse part of the energy consumed by vehicles, and makes the railway system more energy efficient. During regenerative braking, not only energy management is an issue, but also Electromagnetic Compatibility EMC issues, such as interference of generated current harmonics with a railway signaling system. In this paper, the selective harmonic elimination modulation technique (SHE-PWM) was introduced to the traction drive with a three-level inverte

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Partono, Fuad Indra Kusuma, Sumarli, and Hasan Ismail. "Differences in braking time in symmetric and asymmetric tire tread pattern type." IOP Conference Series: Materials Science and Engineering 1034, no. 1 (2021): 012117. http://dx.doi.org/10.1088/1757-899x/1034/1/012117.

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8

Zhou, Xu-Zhi, Vassilis Angelopoulos, Jiang Liu, Andrei Runov, and Dong-Xiao Pan. "Asymmetric braking and dawnward deflection of dipolarization fronts: Effects of ion reflection." Geophysical Research Letters 41, no. 20 (2014): 6994–7001. http://dx.doi.org/10.1002/2014gl061794.

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9

Rödönyi, G., and J. Bokor. "Identification of LPV vehicle models for steering control involving asymmetric front wheel braking." IFAC Proceedings Volumes 37, no. 13 (2004): 519–24. http://dx.doi.org/10.1016/s1474-6670(17)31276-4.

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10

Tahouni, Amin, Mehdi Mirzaei, and Behrouz Najjari. "Applied nonlinear control of vehicle stability with control and state constraints." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 234, no. 1 (2019): 191–211. http://dx.doi.org/10.1177/0954407019848858.

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For the vehicle dynamic control system, to guarantee directional stability in risky maneuvers, the side-slip angle should be restricted to the admissible range when the yaw rate tracks the proposed desired response for enhanced steerability. Meanwhile, the control input of the external yaw moment produced by asymmetric braking forces should be calculated in the practical range according to the capacity of tire forces. In the present study, a novel constrained controller with input and state constraints is developed. To this aim, a cost function consisting of predicted continuous response of ya

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11

Yan, Shi Rong, and Shi Zhong Li. "Study on an EV Traction Control Strategy." Applied Mechanics and Materials 141 (November 2011): 605–10. http://dx.doi.org/10.4028/www.scientific.net/amm.141.605.

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According to an electrical vehicle (EV) construction and working principle, a dynamic model governing its motion was established. A built-in permanent magnet synchronous motor was selected as its driving motor and a mathematical model about the motor working principle was described also. To get good motion effect, a motor driving control system with a current loop and a speed loop was developed. The current loop consists of maximum torque per ampere control and field weakening control. The speed loop is based on a sliding mode control. To make the EV working more smooth, stable and safer, its

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12

Scholtz, Pieter Antonie, and Michael Njoroge Gitau. "Asymmetric Neutral Point Diode Clamped Topology with Reduced Component Count for Switched Reluctance Machine Drive." Energies 15, no. 7 (2022): 2468. http://dx.doi.org/10.3390/en15072468.

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The Reduced Asymmetric Neutral Point Clamped converter topology for unipolar driven, multiphase switched reluctance machines is proposed in this paper. This topology shares similarities with the conventional NPC and Asymmetric-NPC topologies, however it is unique in that the components for the capacitor string and outer semiconductor switches are shared among all the phases for a reduced component count. Some switching state combinations are not possible during commutation overlap between motor phases, resulting in minor torque transients during regenerative braking. A custom modulation scheme

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13

Chen, Xiuqi, Wei Wei, Hongbin Mu, Xu Liu, Zhuo Wang, and Qingdong Yan. "Numerical Investigation and Experimental Verification of the Fluid Cooling Process of Typical Stator–Rotor Machinery with a Plate-Type Heat Exchanger." Machines 10, no. 10 (2022): 887. http://dx.doi.org/10.3390/machines10100887.

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This paper discusses the heat transfer process for a typical stator–rotor machinery-hydrodynamic retarder from the perspective of computational fluid dynamics and experimental means. Fluid cooling is an essential step in the working process of hydrodynamic retarders, and changes in viscosity along with temperature rise will affect the performance of braking. To investigate the heat transfer process of stator–rotor machinery, a novel computational fluid dynamics (CFD) method, combined with a dynamic thermophysical property transfer algorithm, is proposed. A heat-flow coupling numerical method w

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14

Soh, H. J., and J.-H. Yoo. "Optimal shape design of a brake calliper for squeal noise reduction considering system instability." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 224, no. 7 (2010): 909–25. http://dx.doi.org/10.1243/09544070jauto1385.

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Squeal is a noise phenomenon occurring in the last stage of automobile braking with a high-frequency sound. It is very difficult to express the phenomenon using a mathematical model, since the origin of squeal noise is physically complex. However, the possibility of squeal generation can be predicted by solving the vibration equation of the self-excited system using the complex eigenvalue analysis method. The results of the method are expressed as the magnitude of the unstable mode, and the generation of squeal noise can be prevented by reducing the magnitude of the unstable mode of the brake

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15

Hwang, Kyu Yun, Baik Kee Song, and Byung Il Kwon. "Asymmetric dual winding three‐phase PMSM for fault tolerance of overheat in electric braking system of autonomous vehicle." IET Electric Power Applications 13, no. 12 (2019): 1891–98. http://dx.doi.org/10.1049/iet-epa.2018.5973.

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16

Le Gigan, Gaël, Magnus Ekh, Tore Vernersson, and Roger Lundén. "Modelling of grey cast iron for application to brake discs for heavy vehicles." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 231, no. 1 (2016): 35–49. http://dx.doi.org/10.1177/0954407016632090.

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Cast iron brake discs are commonly used in the automotive industry, and efforts are being made to gain a better understanding of the thermal and mechanical phenomena occurring at braking. The high thermomechanical loading at braking arises from interaction between the brake disc and the brake pads. Frictional heating generates elevated temperatures with a non-uniform spatial distribution often in the form of banding or hot spotting. These phenomena contribute to material fatigue and wear and possibly also to cracking. The use of advanced calibrated material models is one important step towards

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17

Schaefer, Bradley E. "Sudden and steady orbital period changes across the classical nova eruptions of DQ Her and BT Mon." Monthly Notices of the Royal Astronomical Society 492, no. 3 (2020): 3323–42. http://dx.doi.org/10.1093/mnras/stz3325.

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ABSTRACT I report two new measures of the sudden change in the orbital period (P) across the nova eruption (ΔP) and the steady period change in quiescence ($\dot{P}$) for classical novae (CNe) DQ Her and BT Mon. The fractional changes (ΔP/P) in parts per million (ppm) are −4.46 ± 0.03 for DQ Her and +39.6 ± 0.5 for BT Mon. For BT Mon, the ΔP/P value is not large enough (i.e. &gt;1580 ppm) to allow for hibernation in this system. The negative ΔP/P for DQ Her is a confident counterexample of the hibernation model for the evolution of cataclysmic variables. Further, published models of period

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18

Tak, Sehyun, Sunghoon Kim, Donghoun Lee, and Hwasoo Yeo. "A Comparison Analysis of Surrogate Safety Measures with Car-Following Perspectives for Advanced Driver Assistance System." Journal of Advanced Transportation 2018 (November 1, 2018): 1–14. http://dx.doi.org/10.1155/2018/8040815.

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Surrogate Safety Measure (SSM) is one of the most widely used methods for identifying future threats, such as rear-end collision. Various SSMs have been proposed for the application of Advanced Driver Assistance Systems (ADAS), including Forward Collision Warning System (FCWS) and Emergency Braking System (EBS). The existing SSMs have been mainly used for assessing criticality of a certain traffic situation or detecting critical actions, such as severe braking maneuvers and jerking before an accident. The ADAS shows different warning signals or movements from drivers’ driving behaviours depend

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19

Yang, Yuangui, Huiyu Yuan, Shuang Wang, and Haifeng Dai. "Magnetic Activity on Four Short-period Contact Binaries: V0576 Peg, KW Psc, V0873 Per, and FY Boo." Astronomical Journal 163, no. 6 (2022): 250. http://dx.doi.org/10.3847/1538-3881/ac63c0.

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Abstract We presented new photometry for four short-period late-type binaries, observed by three small telescopes in China from 2020 September to 2021 December. Seven sets of light curves (including the TESS data for FY Boo) were analyzed by using the W-D method. Three binaries (V0576 Peg, V0873 Per, and FY Boo) are W-type binaries with q ≃ 2.5, while KW Psc is an A-type binary with q ≃ 0.43. Max.I−Max.II is up to 10% of variable light amplitude for the asymmetric light curves, which are modeled by a dark spot on the surface of the more massive component. Photometric results imply the existenc

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20

Heishman, Aaron, Bryce Daub, Ryan Miller, Brady Brown, Eduardo Freitas, and Michael Bemben. "Countermovement Jump Inter-Limb Asymmetries in Collegiate Basketball Players." Sports 7, no. 5 (2019): 103. http://dx.doi.org/10.3390/sports7050103.

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The purpose of the present study was to establish the intrasession and intersession reliability of variables obtained from a force plate that was used to quantitate lower extremity inter-limb asymmetry during the bilateral countermovement jump (CMJ). Secondarily, a comparison was performed to determine the influence of the jump protocol CMJ with or without an arm swing (CMJ AS and CMJ NAS, respectively) on inter-limb asymmetries. Twenty-two collegiate basketball players performed three CMJ AS and three CMJ NAS on dual force platforms during two separate testing sessions. A majority of variable

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21

Gou, Hongye, Yannian He, Wen Zhou, Yi Bao, and Genda Chen. "Experimental and numerical investigations of the dynamic responses of an asymmetrical arch railway bridge." Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit 232, no. 9 (2018): 2309–23. http://dx.doi.org/10.1177/0954409718766929.

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The dynamic responses of an asymmetrical arch railway bridge subjected to moving trains are experimentally and numerically investigated in this study. The strains, displacements and accelerations at critical sections of the bridge were measured at different speeds of trains. A three-dimensional finite element model of the bridge–vehicle coupling system was established to understand the measured dynamic responses and was validated against the experimental results. The numerical model was used to analyze the influence of asymmetry on the dynamic responses of the bridge and the safety and ride co

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22

Furtlehner, Cyril, Jean-Marc Lasgouttes, and Maxim Samsonov. "One-Dimensional Particle Processes with Acceleration/Braking Asymmetry." Journal of Statistical Physics 147, no. 6 (2012): 1113–44. http://dx.doi.org/10.1007/s10955-012-0521-y.

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23

Potdevin, François, Christophe Gillet, Franck Barbier, Yann Coello, and Pierre Moretto. "Propulsion and Braking in the Study of Asymmetry in Able-Bodied Men's Gaits." Perceptual and Motor Skills 107, no. 3 (2008): 849–61. http://dx.doi.org/10.2466/pms.107.3.849-861.

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24

POTDEVIN, FRANCOIS. "PROPULSION AND BRAKING IN THE STUDY OF ASYMMETRY IN ABLE-BODIED MEN'S GAITS." Perceptual and Motor Skills 107, no. 7 (2008): 849. http://dx.doi.org/10.2466/pms.107.7.849-861.

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25

Scherbakova, O. V. "Substantiation of the design scheme of forces acting on the truck train at braking and factors causing the braking forces asymmetry along the sides of the truck train." Вестник гражданских инженеров 15, no. 6 (2018): 208–13. http://dx.doi.org/10.23968/1999-5571-2018-15-6-208-213.

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26

Diederich, Alexander, Christophe Bastien, Karthikeyan Ekambaram, and Alexis Wilson. "Occupant pre-crash kinematics in rotated seat arrangements." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 235, no. 10-11 (2021): 2818–42. http://dx.doi.org/10.1177/09544070211004504.

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The introduction of automated L5 driving technologies will revolutionise the design of vehicle interiors and seating configurations, improving occupant comfort and experience. It is foreseen that pre-crash emergency braking and swerving manoeuvres will affect occupant posture, which could lead to an interaction with a deploying airbag. This research addresses the urgent safety need of defining the occupant’s kinematics envelope during that pre-crash phase, considering rotated seat arrangements and different seatbelt configurations. The research used two different sets of volunteer tests experi

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27

Maknickas, Algirdas, Oleg Ardatov, Marijonas Bogdevičius, and Rimantas Kačianauskas. "Modelling the Interaction between a Laterally Deflected Car Tyre and a Road Surface." Applied Sciences 12, no. 22 (2022): 11332. http://dx.doi.org/10.3390/app122211332.

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The interaction between a deflected car tyre and a road surface was modelled under normal and overloaded conditions. The model incorporates the detailed geometry of the car wheel, including a metallic rim reinforcement, a hyper-elastic composite tyre and tyre treads, as well as the geometry of the road surface. The finite element method was used to investigate the nonlinear dynamics of the model and study the influence of tyre deflection on the friction coefficient of the tyre tread. The results were compared under different internal tyre pressures and external wheel loads, including underload

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28

Sun, Jing, and Xin Wang. "Design and Research of Switched Reluctance Motor Converter Used in Electric Vehicle." Applied Mechanics and Materials 40-41 (November 2010): 277–82. http://dx.doi.org/10.4028/www.scientific.net/amm.40-41.277.

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In recent years, there has been a growing interest in switched reluctance motor when it is widely used in the field of electric vehicles for its simple structure, low cost, high reliability, wide speed range, high response speed, high operating efficiency and strong renewable braking ability. The performance and structure of the power converter will directly affect the efficiency, cost and reliability of SRM, so the reasonable design of SRM power converter is the key to increase the cost performance of the whole SRM speed control system. Based on the principle and advantages of SRM, an improve

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Dos Santos, Luciana Oliveira, Andréia Abud da Silva Costa, and Renato Moraes. "Effect of lower limb dominance on walking adaptations in young adults when stepping into a hole." Brazilian Journal of Motor Behavior 13, no. 5 (2020): 133–43. http://dx.doi.org/10.20338/bjmb.v13i5.141.

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Background. Depending on the dimensions of a hole, the characteristics of the walking surface, and the position of the hole relative to normal walking, individuals may need to step into the hole with the dominant or non-dominant limb. Aim. We investigated the effect of the lower limb dominance in walking adaptations in the presence of a hole on the ground. Methods: Twenty young adults walked and stepped into a hole positioned in the middle of the pathway using the dominant and non-dominant lower limbs. Results. For the trailing limb, the impulses were not affected by the lower limb dominance,

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Liu and Zhong. "Research on an Electromagnetic Interference Test Method Based on Fast Fourier Transform and Dot Frequency Scanning for New Energy Vehicles under Dynamic Conditions." Symmetry 11, no. 9 (2019): 1092. http://dx.doi.org/10.3390/sym11091092.

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In recent years, electromagnetic interference (EMI) of new energy vehicles, including difference mode symmetric interference and common mode asymmetry interference, has attracted the attention of many scholars. So far, EMI tests for new energy vehicles under steady conditions cannot reflect the actual EMI of the running vehicle. The results of EMI test methods based on fast Fourier transform (FFT) under dynamic conditions have worse frequency resolutions, and frequency/amplitude accuracy has low precision. Therefore, this paper proposes an EMI test method based on FFT and dot frequency scannin

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31

BURLAKA, Serhiy. "ALGORITHM OF FUNCTIONING OF A MACHINE-TRACTOR UNIT USING A FUEL MIXER SUPPLY SYSTEM." Herald of Khmelnytskyi National University 305, no. 1 (2022): 136–40. http://dx.doi.org/10.31891/2307-5732-2022-305-1-136-140.

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The switching scheme of operation of the machine-tractor unit with the use of the power supply system with the fuel mixer and the electronic control unit on the basis of Arduino Uno is presented. This scheme provides a fully adaptive power supply system for biofuels and their mixtures depending on the load-speed indicators and operating modes. The selection of circuit components is carried out. A linear algorithm for writing a control program for the engine power system has been developed, which ensures its energy efficiency and efficiency of the machine-tractor unit. During the operation of t

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32

Verliat, Antoine, Patrick Hennebelle, Anaëlle J. Maury, and Mathilde Gaudel. "Protostellar disk formation by a nonrotating, nonaxisymmetric collapsing cloud: model and comparison with observations." Astronomy & Astrophysics 635 (March 2020): A130. http://dx.doi.org/10.1051/0004-6361/201936394.

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Context. Planet-forming disks are fundamental objects that are thought to be inherited from large scale rotation through the conservation of angular momentum during the collapse of a prestellar dense core. Aims. We investigate the possibility for a protostellar disk to be formed from a motionless dense core that contains nonaxisymmetric density fluctuations. The rotation is thus generated locally by the asymmetry of the collapse. Methods. We study the evolution of the angular momentum in a nonaxisymmetric collapse of a dense core from an analytical point of view. To test the theory, we perform

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Ji, Zhongying, Shiyu Qin, Shuanhong Ma, Xin Jia, Xiaolong Wang, and Feng Zhou. "Bio-inspired smart surface to achieve controllable locomotion through adjustable anisotropic friction." Friction, July 31, 2021. http://dx.doi.org/10.1007/s40544-021-0520-6.

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AbstractAnisotropic friction generated by microstructured surfaces is crucial for performing functions such as directional locomotion and adhesion in biological systems. Hence, an epoxy-based shape memory polymer (SMP) incorporating Fe3O4 nanoparticles is used in this study to create a smart surface with oriented structures to mimic anisotropic friction and exploit human-developed controllable locomotion systems. Applying the specific properties of the epoxy-based SMP, fast switching friction can be achieved by adjusting the topography and stiffness of the microstructures on the surface. In ad

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Echim, Marius, Mirela Voiculescu, Costel Munteanu, et al. "On the phenomenology of magnetosheath jets with insight from theory, modelling, numerical simulations and observations by Cluster spacecraft." Frontiers in Astronomy and Space Sciences 10 (February 17, 2023). http://dx.doi.org/10.3389/fspas.2023.1094282.

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Introduction: During recent years magnetosheath plasma structures called “jets” are identified in spacecraft data as localized regions in the magnetosheath where the dynamic pressure is enhanced compared to the background. Although the nomenclature and detection algorithms vary from author to author, magnetosheath jets are part of a larger class of phenomena which can be globally called magnetosheath irregularities. In this review we focus on elements of jets phenomenology less discussed in the literature, though sustained by theoretical models for solar wind magnetosphere interaction, numeric

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Schaefer, Bradley E. "The recurrent nova U Scorpii from the 2010.1 to 2022.4 eruptions; the missed eruption of 2016.78 ± 0.10 and the critical complex period changes." Monthly Notices of the Royal Astronomical Society, September 9, 2022. http://dx.doi.org/10.1093/mnras/stac2511.

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Abstract U Sco is a recurrent nova with eleven observed eruptions, most recently in 2010.1 and 2022.4. I report on my program (running since 1989) of measuring eclipse times and brightnesses of U Sco in quiescence, from 2010 to 2022. The orbital period suddenly increased by +22.4 ± 1.0 parts-per-million across the 2010.1 eruption. This period change is greater than the near-zero period change (+3.9 ± 6.1 parts-per-million) across the 1999.2 eruption. This period change cannot come from any of the usual mechanisms, whereas the one remaining possibility is that the period changes are dominated b

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Brough, Lydia G., Steven A. Kautz, and Richard R. Neptune. "Muscle contributions to pre-swing biomechanical tasks influence swing leg mechanics in individuals post-stroke during walking." Journal of NeuroEngineering and Rehabilitation 19, no. 1 (2022). http://dx.doi.org/10.1186/s12984-022-01029-z.

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Abstract Background Successful walking requires the execution of the pre-swing biomechanical tasks of body propulsion and leg swing initiation, which are often impaired post-stroke. While excess rectus femoris activity during swing is often associated with low knee flexion, previous work has suggested that deficits in propulsion and leg swing initiation may also contribute. The purpose of this study was to determine underlying causes of propulsion, leg swing initiation and knee flexion deficits in pre-swing and their link to stiff knee gait in individuals post-stroke. Methods Musculoskeletal m

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Kempter, Fabian, Lorena Lantella, Norman Stutzig, Jörg Fehr, and Tobias Siebert. "Role of Rotated Head Postures on Volunteer Kinematics and Muscle Activity in Braking Scenarios Performed on a Driving Simulator." Annals of Biomedical Engineering, October 12, 2022. http://dx.doi.org/10.1007/s10439-022-03087-9.

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AbstractOccupants exposed to low or moderate crash events can already suffer from whiplash-associated disorders leading to severe and long-lasting symptoms. However, the underlying injury mechanisms and the role of muscle activity are not fully clear. Potential increases in injury risk of non-nominal postures, i.e., rotated head, cannot be evaluated in detail due to the lack of experimental data. Examining changes in neck muscle activity to hold and stabilize the head in a rotated position during pre-crash scenarios might provide a deeper understanding of muscle reflex contributions and injury

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Sobczyk, Artur, and Marek Kasprzak. "Late Cenozoic Tectonic Activity of the Śnieżnik Massif Area (Sudetes, Sw Poland)in the Light of Lidar Dem Morphometric Analysis." Studia Geomorphologica Carpatho-Balcanica 48, no. 1 (2014). http://dx.doi.org/10.1515/sgcb-2015-0003.

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AbstractŚnieżnik Massif represents a prominent morphological feature in the East Sudetes, which is bounded by a system of faults controlling its differential uplift. Vertical movements originated at least during the Oligocene times, with culmination phase in Pliocene times, whereas estimated total uplift was in the range of 500-1000 meters. This study presents a qualitative (geomorphometric) and quantitative (morphotectonic) approach that combines Late Cenozoic tectonic uplift model with landscape evolution theories. Application of basin asymmetry factor (AF) and hypsometric integral (Hi) anal

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Pan, Gongyu, and Xu Luo. "Mechanism research and structure optimization of brake noise based on contact overlap degree." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, December 27, 2022, 095440702211445. http://dx.doi.org/10.1177/09544070221144578.

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Brake noise can endanger the psychological and physiological health of passengers, as well as cause noise pollution. Therefore, it is important to suppress the noise from the design stage of the braking system. Based on the establishment of a complex modal finite element model of the brake and verification of the validity of the model through bench test, the mechanism of “contact overlap degree” is proposed, that is, the influence of the brake disc-block friction contact overlap degree on the brake noise. In order to better simulate the real situation during brake friction contact, a face-spri

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Muhammad, Zaka, Md Mahbub Alam, and Bernd R. Noack. "Efficient thrust enhancement by modified pitching motion." Journal of Fluid Mechanics 933 (December 21, 2021). http://dx.doi.org/10.1017/jfm.2021.1040.

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Thrust and/or efficiency of a pitching foil (mimicking a tail of swimming fish) can be enhanced by tweaking the pitching waveform. The literature, however, show that non-sinusoidal pitching waveforms can enhance either thrust or efficiency but not both simultaneously. With the knowledge and inspiration from nature, we devised and implemented a novel asymmetrical sinusoidal pitching motion that is a combination of two sinusoidal motions having periods T1 and T2 for the forward and retract strokes, respectively. The motion is represented by period ratio $\mathrm{\mathbb{T}} = {T_1}/T$ , where T

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Fey, Nicholas P., Glenn K. Klute, and Richard R. Neptune. "Optimization of Prosthetic Foot Stiffness to Reduce Metabolic Cost and Intact Knee Loading During Below-Knee Amputee Walking: A Theoretical Study." Journal of Biomechanical Engineering 134, no. 11 (2012). http://dx.doi.org/10.1115/1.4007824.

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Abstract:

Unilateral below-knee amputees develop abnormal gait characteristics that include bilateral asymmetries and an elevated metabolic cost relative to non-amputees. In addition, long-term prosthesis use has been linked to an increased prevalence of joint pain and osteoarthritis in the intact leg knee. To improve amputee mobility, prosthetic feet that utilize elastic energy storage and return (ESAR) have been designed, which perform important biomechanical functions such as providing body support and forward propulsion. However, the prescription of appropriate design characteristics (e.g., stiffnes

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