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Relevant bibliographies by topics / Dynamic responses

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Academic literature on the topic 'Dynamic responses'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 June 2025

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Journal articles on the topic "Dynamic responses"

1

Vinson, V. K. "Dynamic Responses." Science Signaling 5, no. 229 (2012): ec172-ec172. http://dx.doi.org/10.1126/scisignal.2003310.

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Burgess, Darren J. "Dynamic omics responses." Nature Reviews Genetics 13, no. 12 (2012): 828. http://dx.doi.org/10.1038/nrg3370.

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Bai, Zhengfeng, and Zhiyuan Ning. "Dynamic Responses of the Planetary Gear Mechanism Considering Dynamic Wear Effects." Lubricants 11, no. 6 (2023): 255. http://dx.doi.org/10.3390/lubricants11060255.

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Gear wear is unavoidable and results in vibrations and decreased performance in a planetary gear system. In this work, the wear phenomenon of the gear teeth surface and the dynamic responses of the planetary gear mechanism are investigated through a computational methodology. Dynamic responses are presented by considering the dynamic wear effects. First, the model of the planetary gear mechanism dynamics is established by considering the nonlinear stiffness and friction of gear surfaces. The dynamic wear model of the gear is then established based on Archard’s wear model. Further, the coupling between the dynamics and wear characteristics of the planetary gear mechanism is presented by considering the dynamic wear effects. Finally, a numerical investigation is conducted. The simulation results reveal severe wear between the sun and planet gears. The wear depth and meshing vibration responses exhibit prominent nonlinear characteristics. The low-order resonance of the meshing frequency becomes more marked as the mesh times and wear increase.

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Hua, Xia, and Eric Gandee. "Vibration and dynamics analysis of electric vehicle drivetrains." Journal of Low Frequency Noise, Vibration and Active Control 40, no. 3 (2021): 1241–51. http://dx.doi.org/10.1177/1461348420979204.

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The importance of the vibration and dynamics of electric vehicle drivetrains has increased because of noise and durability concerns. In this study, the important dynamic responses of drivetrains, including the dynamic mesh force acting at the gear teeth, dynamic loads acting at the bearings, and torsional fluctuation of the tire or load under major vibration excitations, such as motor torque fluctuation excitation and spiral bevel gear mesh excitation, were investigated. The results demonstrate that at a lower motor speed, dynamic responses such as the dynamic mesh force, dynamic bearing loads, and dynamic torsional displacement of the tire or load under motor torque fluctuation are dominant. At a higher motor speed, however, the dynamic responses under the gear mesh excitation are dominant. In addition, increasing the pinion-motor torsional compliance is an effective approach for suppressing the dynamic responses of drivetrains under motor torque fluctuation.

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Chapman, J. M. "Dynamic Responses to the Environment." Biological Journal of the Linnean Society 34, no. 3 (1988): 191. http://dx.doi.org/10.1111/j.1095-8312.1988.tb01957.x.

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Ozaki, Yu-ichi, Satoru Sasagawa, and Shinya Kuroda. "Dynamic Characteristics of Transient Responses." Journal of Biochemistry 137, no. 6 (2005): 659–63. http://dx.doi.org/10.1093/jb/mvi084.

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Hossack, Kenneth F. "Cardiovascular Responses to Dynamic Exercise." Cardiology Clinics 5, no. 2 (1987): 147–56. http://dx.doi.org/10.1016/s0733-8651(18)30542-3.

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Loizou, Elena, Paul Butler, Lionel Porcar, and Gudrun Schmidt. "Dynamic Responses in Nanocomposite Hydrogels." Macromolecules 39, no. 4 (2006): 1614–19. http://dx.doi.org/10.1021/ma0517547.

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Song, Ohseop, and Sung-Kyun Kim. "1510 Dynamic Responses of Composite H-Type Cross-Section Beams." Proceedings of The Computational Mechanics Conference 2010.23 (2010): 600–602. http://dx.doi.org/10.1299/jsmecmd.2010.23.600.

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Bai, Zheng Feng, Xing Gui Wang, and Yang Zhao. "Investigation on Dynamic Responses of Manipulator with Multiple Clearance Joints." Applied Mechanics and Materials 251 (December 2012): 152–57. http://dx.doi.org/10.4028/www.scientific.net/amm.251.152.

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The existence of clearance in joints of manipulator system is inevitable and the movements of the real manipulator are deflection from the ideal manipulator for the clearances. In this study, the effects of clearance on dynamic responses of real manipulator system with multiple clearance joints are investigated using a computational methodology. By applying the nonlinear continuous contact force model, the contact dynamics model in joint clearance is established and the friction effect is considered with the help of Coulomb friction model. Then the dynamics simulation is carried out and the dynamic characteristics of manipulator system with multiple clearance joints are investigated. The results show that the clearance leads to degradation of dynamic performance of the real manipulator system.

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Dissertations / Theses on the topic "Dynamic responses"

1

Gopalakrishnamurthy, Sharath H. "Structural integrity inspection using dynamic responses /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418023.

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姜瑞娟 and Ruijuan Jiang. "Identification of dynamic load and vehicle parameters based on bridge dynamic responses." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31244270.

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Wu, Xiaoxiao M. Eng Massachusetts Institute of Technology. "Wind-induced dynamic responses of structures with outrigger systems." Thesis, Massachusetts Institute of Technology, 2015. http://hdl.handle.net/1721.1/99621.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, 2015.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 55).<br>A multi-degree of freedom lumped mass model with rotational springs was built to investigate the influence of outrigger system on the natural periods and mode shapes of a structure. The presence of outrigger system was found to significantly stiffen the structure, reducing the natural periods and distorting the mode shapes. The influences of outrigger system on the modal properties of a structure vary with the change of its number, locations and rotational stiffness. Wind-induced along-wind and across-wind responses of structures with and without outrigger system were analyzed, compared and discussed. It was found that the outrigger system can effectively decrease the along-wind responses (peak displacements and accelerations) and its influence is the most significant when it's located at the middle of the structural height. For across-wind responses, the outrigger system(s) could help with the prevention of vortex-induced resonance, if its location(s) is(are) appropriately chosen, by shifting the natural periods of the original structure without outrigger away from the frequency of vortex shedding. Two methodologies were proposed for the design of outrigger systems in two different scenarios, one with the number and locations of outrigger(s) preset and the other not. For the first scenario, the corresponding methodology is a checking process and for the second, it is a designing process. Both methodologies are aimed at preventing vortex-induced resonance and minimizing along-wind peak displacements and accelerations, satisfying related human comfort criteria for motions and lateral drifts requirements.<br>by Xiaoxiao Wu.<br>M. Eng.

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Yang, Xiusheng. "Greenhouse microclimate : transport processes, plant responses and dynamic modeling." The Ohio State University, 1988. http://rave.ohiolink.edu/etdc/view?acc_num=osu1145370914.

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Popic, Tony John. "Pollination networks: dynamic responses to rain-driven resource pulses." Thesis, The University of Sydney, 2013. http://hdl.handle.net/2123/10018.

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Pollination is essential to life on earth. The network of species interactions within a plant-pollinator community exhibit structures which support species coexistence and the persistence of pollination. My thesis centers on understanding how network structure and function respond to rain-driven resource pulses. I sampled a spatially and temporally resolved set of 18 flower-visitation networks in the Simpson Desert, Australia, and discovered 33 new bee species. To ensure representative sampling of pollinators, I compared net sampling and pan trapping. Net sampling more effectively captured visitor diversity and abundance, reflected the spatio-temporal variability in floral resources, and linked visitors to pollination through behavioural observations. I next tested if visitation networks are adequate substitutes for pollination networks. Networks were similar in structure, but the pollen-transport network displayed higher specialisation, lower interaction evenness and fewer links, and pollen transport was confirmed in only one third of visitation interactions. I then tested how rain affected community and network structure. Species diversity and composition varied dramatically with rainfall. An increase in the previous nine months cumulative rainfall increased network size and specialisation, but when network size was accounted for, nestedness and connectance were unaffected. Networks changed in distinct ways: plant species richness determined the number of modules, the richness of poorly connected visitor species determined module size, and the number of well-connected species per module was never greater than one. Finally, I tested if species traits determined a species network role, and found zygomorphic plant species became more connected as bee species richness increased, suggesting species complementarity. My thesis demonstrated that pollination is ensured through stable network structure, despite rain-driven changes in network makeup and species network role.

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NICCOLINI, MARMONT DU HAUT CHAMP CARLO ALBERTO. ""Analysis of dynamic responses and instabilities in rotating machinery”." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1080576.

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The first task of the present research is to characterize both experimentally and numerically journal bearings with low radial clearances for rotors in small-scale applications (e.g., micro Gas Turbines); their diameter is in the order of ten millimetres, leading to very small dimensional clearances when the typical relative ones (order of 1/1000) are employed; investigating this particular class of journal bearings under static and dynamic loading conditions represents something unexplored. To this goal, a suitable test rig was designed, and the performance of its bearings were investigated under steady load. For the sake of comparison, numerical simulations of the lubrication were also performed by means of a simplified model. The original test rig adopted is a commercial Rotor Kit (RK), but substantial modifications were carried out in order to allow significant measurements. Indeed, the relative radial clearance of RK4 RK bearings is about 2/100, while it is around 1/1000 in industrial bearings. Therefore, the same original RK bearings are employed in this new test rig, but a new shaft was designed to reduce their original clearance. The new custom shaft allows to study bearing behaviour for different clearances, since it is equipped with interchangeable journals. Experimental data obtained by this test rig are then compared with further results of more sophisticated simulations. They were carried out by means of an in-house developed finite element (FEM) code, suitable for ThermoElasto-HydroDynamic (TEHD) analysis of journal bearings both in static and dynamic conditions. In this work, bearing static performances are studied to assess the reliability of the experimental journal location predictions by comparing them with the ones coming from already validated numerical codes. Such comparisons are presented both for large and small clearance bearings of original and modified RK, respectively. Good agreement is found only for the modified RK equipped with small clearance bearings (relative radial clearance 8/1000), as expected. In comparison with two-dimensional lubrication analysis, three-dimensional simulation improves prediction of journal location and correlation with experimental results. The second main task of the present work is the development and the implementation of a suitable analytical model to correctly capture rolling bearing radial stiffness, particularly nearby the critical speeds of the investigated rotor-bearings system. In this work, such bearing non-linear stiffness lumped parameter model is firstly validated on the commercial RK and then it is applied to both air bladeless turbines (or Tesla turbines) and to an innovative microturbine, in order to assess their global rotodynamic behavior when they are mounted on ball bearings. In order to properly investigate all the issues related to critical speeds and stiffness, an adequate number of experimental tests was performed by exploiting an experimental air Tesla turbine prototype located at TPG experimental facility of the University of Genoa. The correlation between measured flexural critical speeds and their numerical predictions is markedly conditioned by the correct identification of ball bearings dynamic characteristics; in particular, bearings stiffness effect may play a significant role in terms of rotor-bearings system natural frequencies and therefore it must be properly assessed. Indeed, Tesla turbine rotor FE model previously employed for numerical modal analysis relies on rigid bearings assumption and therefore it does not account for bearings stiffness overall contribution, which may become crucial in case of “hard mounting” of rotor-bearings systems. Subsequently, high-speed air Tesla rotor is investigated by means of an enhanced FE model for numerical modal analysis within Ansys® environment, where ball bearings are modelled as non-linear springs whose stiffness is expressed according to the analytic model implemented in Matlab®. Two different numerical FE models are devised for microturbine rotor modelling which respectively rely on beam elements and on three-dimensional solid elements for mechanical system spatial discretization. The obtained results in terms of rotor-bearings system modal analysis exhibit an improvement in experimental-numerical results correlation by relying on such ball bearing stiffness model; moreover, beam-based FE model critical speeds predictions are coherent with experimental evidence and with respect to solid elements model it is characterized by lower computational time and it is more easily interpretable. Thus, such experimentally validated numerical model represents a reliable and easily adaptable tool for highspeed rotating machinery critical speeds prediction in practical industrial application cases. Finally In this work, several signal processing techniques performed on vibro-acoustic signals acquired from a T100 Turbec microturbine (which is furnished with a centrifugal compressor) are illustrated. Research activity goal focuses on the investigation different kinds of system response starting from non-intrusive probes signals like accelerometers and microphones; this is made by means of techniques such as HOSA and Wavelet Transform, developed in Matlab® environment, for early detection of the onset of unstable phenomena in centrifugal compressors. These new and different methods have been applied to the same set of data to get sufficiently independent information useful to synergistically improve knowledge in the diagnostic system. Data were acquired by means of an experimental facility based on a T100 turbine developed by the Thermochemical Power Group (TPG) at the University of Genoa. Sampling rate and sensor placement were carefully taken into account, basing both on the physical phenomena to be observed and on the sensor dynamic characteristics. In this context, it is meant to study microphones and accelerometers signals not from an isolated centrifugal turbomachine installed in a dedicated line, but from a whole compressor placed in a mGT system for energy generation. Indeed, the investigated machine is not operating in standalone mode, but its working point and angular velocity depend on the coupling with several elements. In particular, compressor working point and then its vibro-acoustic signals are expected to convey vibration and sound contributions coming from all the plant components; thus, they are more representative of machine realistic behavior in the energy system.

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St-Pierre, Luc. "The quasi-static and dynamic responses of metallic sandwich structures." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/243443.

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Lattice materials are used as the core of sandwich panels to construct light and strong structures. This thesis focuses on metallic sandwich structures and has two main objectives: (i) explore how a surface treatment can improve the strength of a lattice material and (ii) investigate the collapse response of two competing prismatic sandwich cores employed in ship hulls. First, the finite element method is used to examine the effect of carburisation and strain hardening upon the compressive response of a pyramidal lattice made from hollow tubes or solid struts. The carburisation surface treatment increases the yield strength of the material, but its effects on pyramidal lattices are not known. Here, it is demonstrated that carburisation increases the plastic buckling strength of the lattice and reduces the slenderness ratio at which the transition from plastic to elastic buckling occurs. The predictions also showed that strain hardening increases the compressive strength of stocky lattices with a slenderness ratio inferior to ten, but without affecting the collapse mode of the lattice. Second, the quasi-static three-point bending responses of simply supported and clamped sandwich beams with a corrugated core or a Y-frame core are compared via experiments and finite element simulations. The role of the face-sheets is assessed by considering beams with (i) front-and-back faces present and (ii) front face present, but back face absent. These two beam designs are used to represent single hull and double hull ship structures, and they are compared on an equal mass basis by doubling the thickness of the front face when the back face is absent. Beams with a corrugated core are found to be slightly stronger than those with a Y-frame core, and two collapse mechanisms are identified depending upon beam span. Short beams collapse by indentation and for this collapse mechanism, beams without a back face outperform those with front-and back faces present. In contrast, longbeams fail by Brazier plastic buckling and for this collapse mechanism, the presence of a back face strengthens the beam. Third, drop weight tests with an impact velocity of 5 m/s are performed on simply supported and clamped sandwich beams with a corrugated core or a Y-frame core. These tests are conducted to mimic the response of a sandwich hull in a ship collision. The responses measured at 5 m/s are found to be slightly stronger than those measured quasi-statically. The measurements are in reasonable agreement with finite element predictions. In addition, the finite element method is used to investigate whether the collapse mechanism at 5 m/s is different from the one obtained quasi-statically. The predictions indicate that sandwich beams that collapse quasi-statically by indentation also fail by indentation at 5 m/s. In contrast, the simulations for beams that fail quasi-statically by Brazier plastic buckling show that they collapse by indentation at 5 m/s. Finally, the dynamic indentation response of sandwich panels with a corrugated core or a Y-frame core is simulated using the finite element method. The panels are indented at a constant velocity ranging from quasi-static loading to 100 m/s, and two indenters are considered: a flat-bottomed indenter and a cylindrical roller. For indentation velocities representative of a ship collision, i.e. below 10 m/s, the predictions indicate that the force applied to the front face of the panel is approximately equal to the force transmitted to the back face. Even at such low indentation velocities, inertia stabilisation effects increase the dynamic initial peak load above its quasi-static value. This strengthening effect is more important for the corrugated core than for the Y-frame core. For velocities greater than 10 m/s, the force applied to the front face exceeds the force transmitted to the back face due to wave propagation effects. The results are also found to be very sensitive to the size of the flat-bottomed indenter; increasing its width enhances both inertia stabilisation and wave propagation effects. In contrast, increasing the roller diameter has a smaller effect on the dynamic indentation response. Lastly, it is demonstrated that material strain-rate sensitivity has a small effect on the dynamic indentation response of both corrugated and Y-frame sandwich panels.

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Pang, Wyming Lee. "Quantitative analysis of genetic expression responses to dynamic microenvironmental perturbation." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2007. http://wwwlib.umi.com/cr/ucsd/fullcit?p3245319.

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Thesis (Ph. D.)--University of California, San Diego, 2007.<br>Title from first page of PDF file (viewed March 2, 2007). Available via ProQuest Digital Dissertations. Vita. Includes bibliographical references (p. 320-337).

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Schmidt, Daniel, Castro Germano Andresa Mara De, and Thomas Lothar Milani. "Aspects of Dynamic Balance Responses: Inter- and Intra-Day Reliability." Universitätsbibliothek Chemnitz, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-188620.

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The Posturomed device is used as a scientific tool to quantify human dynamic balance ability due to unexpected perturbations, and as a training device. Consequently, the question arises whether such measurements are compromised by learning effects. Therefore, this study aimed to analyze inter- and intra-day reliability of dynamic balance responses using the Posturomed. Thirty healthy young subjects participated (24.3±3.2 years). The Posturomed was equipped with a triggering mechanism to enable unexpected, horizontal platform perturbations. A force platform was used to quantify Center of Pressure (COP) excursions for two time intervals: interval 1 (0–70 ms post perturbation) and interval 2 (71–260 ms post perturbation). Dynamic balance tests were performed in single leg stances in medio-lateral and anterior-posterior perturbation directions. Inter- and intra-day reliability were assessed descriptively using Bland-Altman plots and inferentially using tests for systematic error and intra-class-correlations. With regard to the mean COP excursions for every subject and all intervals, some cases revealed significant differences between measurement sessions, however, none were considered relevant. Furthermore, intra class correlation coefficients reflected high magnitudes, which leads to the assumption of good relative reliability. However, analyzing inter- and intra-day reliability using Bland-Altman plots revealed one exception: intra-day comparisons for the anterior-posterior direction in interval 2, which points towards possible learning effects. In summary, results reflected good overall reliability with the exception of certain intra-day comparisons in the anterior-posterior perturbation direction, which could indicate learning effects in those particular conditions.

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Wu, Liwen. "Dynamic hyporheic responses to transient discharge, temperature and groundwater table." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/22236.

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Obwohl der Bedeutung von hyporheischen Zonen als Übergangsbereiche zwischen Flüssen und angrenzenden alluvialen Aquiferen eine wachsende Anerkennung zuteilwird, sind dynamische hyporheische Reaktionen auf instationäre hydrologische Bedingungen weiterhin signifikant untererforscht. Um diese Lücke zu schließen, liegt der Fokus dieser Doktorarbeit insbesondere auf den Effekten transienter Abflussverhalten und Temperaturschwankungen in Flüssen auf die raumzeitliche Variabilität von hyporheischen Austauschprozessen. Unter Beachtung dieser Ziele wird ein neues physikalisch basiertes numerisches Modell vorgeschlagen und schließlich angewandt, um systematisch die hyporheischen, durch Sedimentoberflächenstrukturen ausgelösten Reaktionen auf eine Reihe von künstlichen und natürlichen Abflussregimen abzuschätzen. Parameter wie das räumliche Ausmaß der hyporheischen Zone, hyporheische Austauschrate, mittlere Aufenthaltszeit, Temperatur des hyporheischen Flusses sowie das Denitrifikationspotenzial werden definiert, um den Einfluss der Antriebskräfte und Regulatoren auf dynamische hyporheische Reaktionen zu quantifizieren. Die Ergebnisse zeigen, dass mit zunehmendem Abfluss generell das räumliche Ausmaß der hyporheischen Zone vergrößert wird; jedoch bestimmen geomorphologische Bedingungen und Grundwasserflüsse erheblich das Ausdehnen und Zusammenziehen hyporheischer Zonen zusammen mit Strömungen, Wärme- und Stoffaustausch zwischen Fluss und Grundwasser. Temperaturvariabilität, ein wichtiger Faktor, welcher oft in hydrodynamischen Studien vernachlässigt wird, zeigt direkte kontrollierende Effekte beim Bestimmen hyporheischer Austauschraten und mittlerer Aufenthaltszeiten. Weiterhin spielt die Dynamik von Grundwasserständen eine entscheidende Rolle bei hyporheischen Austauschprozessen. Das Optimieren der Terminierung von Grundwasserförderung ist ausschlaggebend für die Regulierung von Wasserqualität, Nährstoffkreisläufen und der Entstehung thermischer hyporheischer Refugien.<br>Although there is a growing recognition of the importance of hyporheic zones as transitional areas connecting rivers and adjacent alluvial aquifers, the dynamic hyporheic responses to unsteady hydrological conditions are still significantly understudied. To bridge this gap, the present PhD thesis primarily focuses on the effects of transient river discharge and temperature fluctuations on the spatiotemporal variability of hyporheic exchange processes. With these objectives in mind, a novel physically based numerical model is proposed and then applied to systematically evaluate bedform-induced hyporheic responses to a series of synthetic and natural hydrological regimes. Metrics including spatial hyporheic extent, hyporheic exchange rate, mean residence time, temperature of hyporheic flux, and denitrification potential are defined to quantify the impact of drivers and modulators of dynamic hyporheic responses. Results indicate that increasing river discharge generally enlarges the spatial hyporheic extent; however, geomorphological settings and groundwater fluxes substantially modulate the expansion and contraction of hyporheic zones along with flow, heat and solute exchange between river and groundwater. Temperature variability, an important factor which is often neglected in hydrodynamic studies, displays direct controlling effects in determining hyporheic exchange rates and mean residence times. Groundwater table dynamics also play a critical role in hyporheic exchange processes. Optimizing the timing of aquifer pumping is crucial for regulation of water quality, nutrient cycling, and the formation of thermal hyporheic refugia. The findings largely advanced our mechanistic understandings of dynamic hyporheic responses to varying transient flow and temperature conditions, and therefore shed lights on improving river management and restoration strategies.

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Books on the topic "Dynamic responses"

1

Hsi-Ping, Liu, and Geological Survey (U.S.), eds. Vertical modal responses of Monticello Dam: Results from an air-gun dynamic test. U.S. Dept. of the Interior, Geological Survey, 1985.

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Griffin, Naomi N. Assessing the relationship between economic stability and dynamic employment and responses to aggregate shocks. Congressional Budget Office, 2007.

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O'Connor, David C. Policy and entrepreneurial responses to the Montreal protocol: Some evidence from the dynamic Asian economies. Organisation for Economic Co-operation and Development, 1991.

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Nouve, Kofi. Impact of rising rice prices and policy responses in Mali: Simulations with a dynamic CGE model. World Bank, 2008.

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Fund, International Monetary. Dynamic responses to policy and exogenous shocks in an empirical developing-country model with rational expectations. International Monetary Fund, 1990.

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Zervoyianni, Athina. Product-market openness and dynamic responses to exogenous shocks and policies in a two-country, two-goods model. University of Hull. Department of Economics, 1994.

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1357-1419, Tsong-kha-pa Blo-bzang-grags-pa, ed. Emptiness in the mind-only school of Buddhism: Dynamic responses to D̄zong-ka-bā's The essence of eloquence: I. University of California Press, 1999.

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Kramer, Steven Lawrence. Dynamic response of peats. Washington State Dept. of Transportation, 1996.

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Feucht, Dennis. Designing dynamic circuit response. SciTech Pub., 2010.

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Kelly, Carney, Gallardo V. C, and NASA Glenn Research Center, eds. Simulation of aircraft engine blade-out structural dynamics. National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Book chapters on the topic "Dynamic responses"

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Gad, Osama. "Dynamic System Responses." In System Dynamics. CRC Press, 2024. http://dx.doi.org/10.1201/9781032685656-8.

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Hargrove, James L. "Responses to Nutrients." In Dynamic Modeling in the Health Sciences. Springer New York, 1998. http://dx.doi.org/10.1007/978-1-4612-1644-5_12.

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Isermann, Rolf, and Marco Münchhof. "Parameter Estimation for Frequency Responses." In Identification of Dynamic Systems. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-540-78879-9_14.

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Weidenbaum, Murray, and Harvey S. James. "Business Responses to Foreign Government Barriers." In The Dynamic American Firm. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4613-1313-7_9.

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Sarma, Sridevi V., and Pierre Sacré. "Characterizing Complex Human Behaviors and Neural Responses Using Dynamic Models." In Dynamic Neuroscience. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-71976-4_7.

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Hause, Terry John. "Dynamic Response to Time-Dependent External Excitations." In Sandwich Structures: Theory and Responses. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71895-4_6.

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Ravishanker, Nalini, Balaji Raman, and Refik Soyer. "Non-Gaussian Continuous Responses." In Dynamic Time Series Models using R-INLA. Chapman and Hall/CRC, 2022. http://dx.doi.org/10.1201/9781003134039-7.

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Galambos, R., and S. Makeig. "Dynamic Changes in Steady-State Responses." In Springer Series in Brain Dynamics. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-71531-0_6.

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Dasgupta, G. "Approximate dynamic responses in random media." In Advances in Dynamic Systems and Stability. Springer Vienna, 1992. http://dx.doi.org/10.1007/978-3-7091-9223-8_8.

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Friston, Karl J. "Dynamic Causal Modelling of Brain Responses." In Neuromethods. Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60327-919-2_8.

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Conference papers on the topic "Dynamic responses"

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Kok, Chee Kuang, Hui Ling Tay, Boon Kian Lim, Kia Wai Liew, Lingenthiran Samylingam, and Chin Chin Ooi. "Modeling the Dynamic Responses of Industrial Printed Circuit Board." In 2024 Multimedia University Engineering Conference (MECON). IEEE, 2024. https://doi.org/10.1109/mecon62796.2024.10776110.

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Maruyama, Kohei, Ikumasa Yoshida, and Hidehiko Sekiya. "Fundamental study on the influence of vehicle speed on BWIM considering autocorrelation in bridge dynamic response." In IABSE Symposium, Tokyo 2025: Environmentally Friendly Technologies and Structures: Focusing on Sustainable Approaches. International Association for Bridge and Structural Engineering (IABSE), 2025. https://doi.org/10.2749/tokyo.2025.1684.

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<p>The Bridge Weigh-in-Motion (BWIM) system estimates axle weights and gross vehicle weights (GVW) but is affected by modeling errors due to dynamic responses from traffic loads. Conventional BWIM assumes white noise for residuals, which overlooks dynamic response characteristics. To improve estimation accuracy, previous studies consider the autocorrelation of dynamic responses using the covariance matrix of residuals. This matrix may be affected by driving conditions, including vehicle speed. This study investigates the potential effect of driving conditions, particularly vehicle speed, on the proposed method using actual bridge response data. The results indicate that the effect of vehicle speed on the method is small. Moreover, accurate modeling of the dynamic response is confirmed to enhance estimation accuracy.</p>

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ZARYAB SHAHID,, ZARYAB SHAHID,, MOLLY SAYLOR OHNSON, COLEMAN GUSTAV BOND, JAMES HUBBARD, JR., NEGAR KALANTAR, and ANASTASIA MULIANA. "DYNAMIC RESPONSES OF ARCHITECTURAL KERF STRUCTURES." In Thirty-sixth Technical Conference. Destech Publications, Inc., 2021. http://dx.doi.org/10.12783/asc36/35747.

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Kerfing is a subtractive manufacturing approach to create flexible freeform surfaces from stiff planar materials. The kerf structures are used in both indoor and outdoor architectures for wall paneling, outdoor façade and pavilion. In addition to their physical appeal, these structures have potential applications in tuning the dynamics responses in buildings, e.g., indoor acoustic, vibration suppression, etc. To exploit these novel applications of kerf structures, this paper presents a study on the dynamic responses of kerf structures made up of Medium Density Fiberboard (MDF). MDF is a viscoelastic composite material comprising of wood fiber networks and epoxy. The influence of the material behavior, i.e. viscoelasticity of MDF is considered in determining the dynamic response of the kerf panels. Two kerf panels with similar kerfing pattern but different cut density and arrangement are studied for their modal responses. A 3D beam element is used to model the mechanical responses of the kerf panels. With the understanding of the dynamic response of these kerf panels, their applications in altering the indoor acoustics and the wind responses of the buildings can be better comprehended.

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Huang, Liping. "Analysis of Dynamic Stress Responses in Structural Vibration." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/vib-4238.

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Abstract This paper describes basic concepts and finite element method of dynamic stress response analysis. It provides basics of stress modal analysis and frequency response analysis. The paper defines concepts of normal mode stresses and complex stress frequency response functions for shell elements and shows that element stress responses in both time and frequency domains can be expressed as superposition of normal mode stresses. It demonstrates that element stress response solutions have the similar forms to those of node displacement responses and that normal mode stresses in stress analysis play the same role as mode shapes in normal vibration analysis.

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Brehin, Florian G., and Gary A. Zarillo. "147. MODELING MORPHOLOGIC RESPONSES TO PROPOSED ENGINEERING MODIFICATIONS AT SEBASTIAN INLET, FL." In Coastal Dynamics 2009 - Impacts of Human Activities on Dynamic Coastal Processes. WORLD SCIENTIFIC, 2009. http://dx.doi.org/10.1142/9789814282475_0146.

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Bighamian, Ramin, Sadaf Soleymani, Andrew T. Reisner, Istvan Seri, and Jin-Oh Hahn. "Modeling and System Identification of Hemodynamic Responses to Vasopressor-Inotropes." In ASME 2013 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/dscc2013-3726.

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In an effort to establish an initial step towards the ultimate goal of developing an analytic tool to optimize the vasopressor-inotrope therapy through individualized dose-response relationships, we propose a phenomenological model intended to reproduce the hemodynamic response to vasopressor-inotropes. The proposed model consists of a cardiovascular model relating blood pressure to cardinal cardiovascular parameters (stroke volume and total peripheral resistance) and the phenomenological relationships between the cardinal cardiovascular parameters and the vasopressor-inotrope dose, in such a way that the model can be adapted to individual patient solely based upon blood pressure and heart rate responses to medication dosing. In this paper, the preliminary validity of the proposed model is shown using the experimental epinephrine dose versus blood pressure and heart rate response data collected from five newborn piglets. Its performance and potential usefulness are discussed. It is anticipated that, potentially, the proposed phenomenological model may offer a meaningful first step towards the automated control of vasopressor-inotrope therapy.

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Chung, Yung-Tseng, and John P. Leuer. "Evaluation of Modal Truncation on Dynamic Responses." In Aerospace Technology Conference and Exposition. SAE International, 1992. http://dx.doi.org/10.4271/922018.

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Ikeda, Takashi. "Nonlinear Responses of Dual Pendulum Dynamic Absorbers." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86894.

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The nonlinear responses of a single-degree-of-freedom (SDOF) system with two pendulum tuned mass dampers (TMDs) under horizontal sinusoidal excitation are investigated. In the theoretical analysis, van der Pol’s method is applied to determine the expressions for the frequency response curves. In the numerical results, the differences between single- and dual-pendulum systems are shown. Pitchfork bifurcations occur followed by mode localization where both identical pendulums vibrate but at different amplitudes. Hopf bifurcations occur and then amplitude modulated motions including chaotic vibrations appear in the identical dual-pendulum system. The Lyapunov exponents are calculated to prove the occurrence of chaotic vibrations. In a non identical dual-pendulum system, perturbed pitchfork bifurcations occur and saddle-node bifurcation points appear instead of pitchfork bifurcation points. Hopf bifurcations and amplitude modulated motions also appear. The deviation of the tuning condition is also investigated by showing the frequency response curves and bifurcation sets. The numerical simulations are shown to be in good agreement with the theoretical results. In experiments, the imperfections of the two pendulums were taken into consideration and the validity of the theoretical analysis was confirmed.

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Arafa, E. I., A. T. Shenoy, A. Guillon, et al. "Dynamic Alveolar Macrophages Responses to Pneumococcal Pneumonia." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a5593.

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Yan, Xiangwu, and Sara Yahia Altahir Mohamed. "Comparison of virtual synchronous generators dynamic responses." In 2018 IEEE 12th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG). IEEE, 2018. http://dx.doi.org/10.1109/cpe.2018.8372573.

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Reports on the topic "Dynamic responses"

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Djalal, Dino Patti. ASEAN responses to AUKUS security dynamic. East Asia Forum, 2021. http://dx.doi.org/10.59425/eabc.1638136850.

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Engblom, John J., and Ozden O. Ochoa. Nonlinear Dynamic Responses of Composite Rotor Blades. Defense Technical Information Center, 1988. http://dx.doi.org/10.21236/ada200145.

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Depireux, Didier A., Jonathan Z. Simon, David J. Klein, and Shihab A. Shamma. Dynamics of Neural Responses in Ferret Primary Auditory Cortex: I. Spectro-Temporal Response Field Characterization by Dynamic Ripple Spectra. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada439778.

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Stache, Jeremiah. A dynamic aircraft response model for determining roughness limits. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48513.

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Runway roughness poses significant risks to aircraft and aircraft personnel. Roughness irregularities can be found in both civilian and military airfields, from rutting to bomb-damaged repairs. Various methods exist for determining roughness criteria, such as discrete surface deviation evaluation and dynamic response models. Although validated dynamic response models such as TAXI-G were used extensively in the HAVE BOUNCE program from the 1970s up to the late 1990s, modern military aircraft have not undergone the same formal analysis. This paper presents the mathematical formulation and validation of the WESTAX dynamic response model. The computer program is capable of simulating the responses of different critical aircraft components while trafficking over idealized runway profiles. The validation results showed that the numerical model was capable of closely matching field data over single- and double bump events. The findings suggest that the WESTAX dynamic response model is a capable candidate for establishing aircraft roughness limits.

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Kowalski, Nina, Didier A. Depireux, and Shihab A. Shamma. Analysis of Dynamic Spectra in Ferret Primary Auditory Cortex. 2. Prediction of Unit Responses to Arbitrary Dynamic Spectra. Defense Technical Information Center, 1995. http://dx.doi.org/10.21236/ada445591.

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Banks, H. T., Gabriella A> Pinter, Laura K. Potter, Michael J. Gaitens, and Lynn C. Yanyo. Modeling of Quasi-Static and Dynamic Load Responses of Filled Viscoelastic Materials. Defense Technical Information Center, 1998. http://dx.doi.org/10.21236/ada451635.

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Banks, H. T., and N. G. Medhin. A Molecular Based Dynamic Model for Viscoelastic Responses of Rubber in Tensile Deformations. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada451430.

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Weinstein, Russell. Dynamic Responses to Labor Demand Shocks: Evidence from the Financial Industry in Delaware. W.E. Upjohn Institute, 2017. http://dx.doi.org/10.17848/wp17-276.

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Pudney, Stephen. Perception and retrospection: the dynamic consistency of responses to survey questions on wellbeing. Institute for Fiscal Studies, 2010. http://dx.doi.org/10.1920/wp.cem.2010.1210.

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Short, Samuel, Bernhard Strauss, and Pantea Lotfian. Food in the digital platform economy – making sense of a dynamic ecosystem. Food Standards Agency, 2022. http://dx.doi.org/10.46756/sci.fsa.jbr429.

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The food services sector has been evolving rapidly over the past decade, accelerated by the Covid-19 pandemic. The traditional linear model of food producers selling through wholesalers to brick and mortar retailers, restaurants and hospitality venues is increasingly being displaced by complex interactive digital ecosystems of online food services providers. Consumers are increasingly able to access food directly at various stages along the traditional value chain via interaction with digital platforms and rapid home-delivery networks, realising greater convenience, more variety in food products and services from a dynamic start-up scene, and overall enhanced value. FSA needs to stay abreast of these changes and develop regulatory responses to ensure these innovations are aligned with the public good and do not compromise food safety and public health.

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