Relevant bibliographies by topics / Shaft motion

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Shaft motion'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Shaft motion"

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Zhang, B., and Z. Y. Chen. "General Winkler Model for Kinematic Responses of Shafts in Linear Soil." International Journal of Computational Methods 17, no. 05 (February 25, 2019): 1940004. http://dx.doi.org/10.1142/s0219876219400048.

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A simplified model for calculating the seismic responses of the shaft is proposed in this paper. Based on the theory of Winkler elastic foundation beam, the urban shaft is simplified as a vertical beam. The horizontal soil reaction and vertical shear tractions between the shaft circumference and the surrounding soils are considered through horizontal springs and rotating springs on the sidewall of the shaft. The translation and rocking motion of the shaft are considered through horizontal springs and rotating springs at the bottom of the shaft. Then, the dynamic analysis model of the shafts under seismic motion is established, and the control equation of the dynamic response of the shaft in frequency domain is deduced. The analytical solution of the steady state response of the shaft is obtained. Considering the randomness of the earthquake motion, this method can get the shaft kinematic responses under different ground motions efficiently in conceptual design process.
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Yu, J., A. Craggs, and A. Mioduchowski. "Modelling of Shaft Orbiting with 3-D Solid Finite Elements." International Journal of Rotating Machinery 5, no. 1 (1999): 53–65. http://dx.doi.org/10.1155/s1023621x99000056.

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A 3-D solid finite element model which can include bending, torsional, axial and other motions is proposed to analyse dynamic responses of shafts. For uniform shafts, this model shows consistency with beam theories when bending vibration is examined. For non-uniform shafts such as tapered ones, however, this model gives much more reliable and accurate results than beam theories which use an assumption that plane sections remain plane. Reduction procedures can be applied which involve only small matrix operations for such a system with a large number of degrees of freedom. The equations of motion have been consistently derived in a rotating frame. Shaft orbiting motion is then defined in this frame, giving a clear view of its trajectories. Forced responses due to excitation in the rotating frame have been examined to find some characteristics of the orbiting shaft. Resonant orbiting frequencies, i.e., natural frequencies of rotating shafts, can be determined in terms of the rotating or fixed frame. Trajectories of transverse displacements have been found to be varying with the forcing frequencies. At resonance, a uniform shaft will only have forward or backward orbiting motion with circular orbits. For other forcing frequencies, however, even a uniform shaft could present both forward and backward orbiting motions with non-circular orbits at different locations along its length. It is anticipated that modelling of shaft orbiting in the rotating frame with the proposed 3-D solid finite elements will lead to accurate dynamic stress evaluation.
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Lee, Dong-Hyeok, and Wi-Ro Lee. "Easy measuring instrument for analyzing the radial and tilt error motions of a rotating shaft." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 231, no. 2 (March 14, 2017): 667–74. http://dx.doi.org/10.1177/1475090216680891.

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In this study, a real-time measurement system to easily apply multi-probe error separation method for error motion measurement of a shaft was designed and developed. An arrangement condition of sensing probes for accurate multi-probe error separation method was examined and verified by a simulation test. By following the examined arrangement condition for multi-probe method, a measurement system to measure radial and tilt error motions of a shaft was designed and developed. The efficiency of the multi-probe method with the examined arrangement condition was checked by comparing the error motion results for a rotary stage with the error motions in the specifications of the guarantee. It is expected to apply this system to a real-time monitoring system of failure diagnosis for rotating shafts in ships and plants.
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Collins, K. R., R. H. Plaut, and J. Wauer. "Detection of Cracks in Rotating Timoshenko Shafts Using Axial Impulses." Journal of Vibration and Acoustics 113, no. 1 (January 1, 1991): 74–78. http://dx.doi.org/10.1115/1.2930158.

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A rotating Timoshenko shaft with a single transverse crack is considered. The crack opens and closes during motion and is represented by generalized forces and moments. The shaft has simply supported ends, and the six coupled, piecewise-linear equations of motion (including longitudinal, transverse, and torsional displacements) are integrated numerically after application of Galerkin’s method with two-term approximations for each of the six displacements. Time histories and frequency spectra are compared for shafts with no crack and with a crack for which the crack depth is one-fifth of the shaft diameter. Free vibrations and the responses to a single axial impulse and periodic axial impulses are analyzed. The last case appears to provide an effective means for detecting cracks in rotating shafts.
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Lahjouji, Imane, M’hammed El Gadari, and Mohammed Radouani. "Numerical Investigation of Grooved Shaft Effects on the Rotary Lip Seal Performance with Relative Lip Motion." Lubricants 7, no. 2 (February 15, 2019): 16. http://dx.doi.org/10.3390/lubricants7020016.

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It is generally agreed that radial lip seals are used in systems with a rotating shaft and a stationary lip. However, according to previous work, it was demonstrated that relative motion between the shaft and the lip has substantial effects on the hydrodynamic lifting load and sealing performances. Nowadays, new generations of textured shafts have emerged in order to reduce friction torque and improve reverse pumping, but no study has confirmed the effect of the relative motion between the rough lip and the shaft grooves on the rotary lip seal performances. In this work, an isothermal hydrodynamic lubrication was performed in transient conditions to investigate the effect of the relative velocity between an oblique grooved shaft and a rough lip. After confirming the validity of the current model with respect to previous works, simulations have underlined the effect of the grooved shaft with relative lip motion on the rotary lip seal performance. Indeed, by keeping the same relative velocity between surfaces, it is shown that moving the shaft with a rate higher than that of the lip surface could produce an important reverse pumping and reduce the friction torque significantly, in comparison with cases where the shaft velocity is weaker.
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Iwata, Toshiaki, Kenzo Kodama, Fumio Numajiri, Yozo Kikuta, and Hiroshi Murakami. "Experiment of Robotic Motion Using Drop Shaft." Journal of the Robotics Society of Japan 13, no. 8 (1995): 1206–9. http://dx.doi.org/10.7210/jrsj.13.1206.

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Neriya, S. V., R. B. Bhat, and T. S. Sankar. "On the Dynamic Response of a Helical Geared System Subjected to a Static Transmission Error in the Form of Deterministic and Filtered White Noise Inputs." Journal of Vibration and Acoustics 110, no. 4 (October 1, 1988): 501–6. http://dx.doi.org/10.1115/1.3269557.

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The vibration of a helical geared shaft system is studied, considering the coupling between the torsional, flexural, rotational (about the diametral axis), and axial motions of the gear carrying shafts. The effects of the nonlinear backlash function and time varying tooth stiffness are also considered. The excitation to the geared shaft system is in the form of a static transmission error which has deterministic and filtered white noise components. The equations of motion are formulated in state space form and solved using matrix exponential approach. Piecewise linearization is used in the simulation and results for the mean and variance of the dynamic response are presented.
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Chassapis, C., and G. G. Lowen. "Computer Simulation of a Press Feed Mechanism and Experimental Confirmation." Journal of Mechanical Design 116, no. 1 (March 1, 1994): 248–56. http://dx.doi.org/10.1115/1.2919355.

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An experimentally verified simulation of the elastic-dynamic behavior of a lever-type feed mechanism is presented. Based on a combination of experimental and analytical findings, simplified motion equations could be introduced. In the experimental set-up, the motion of the mechanism is monitored by three angular encoders, which are attached to the drive shaft, the rocker-link shaft, and the feed roller shaft, respectively. Their output, which is stored in a specially designed data acquisition system, allows the correlation of the instantaneous rotations of the feed roller and the rocker shafts to that of the drive shaft. Strain gages provide in and out-of-plane bending-strain histories of the bent coupler. Experiment and theory, for different loading conditions, are correlated by way of the coupler strain, the clutch windup angle and the total feed length. Good qualitative and quantitative agreement between computed and experimental results was found.
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Legrand, Mathias, Dongying Jiang, Christophe Pierre, and Steven W. Shaw. "Nonlinear Normal Modes of a Rotating Shaft Based on the Invariant Manifold Method." International Journal of Rotating Machinery 10, no. 4 (2004): 319–35. http://dx.doi.org/10.1155/s1023621x04000338.

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The nonlinear normal mode methodology is generalized to the study of a rotating shaft supported by two short journal bearings. For rotating shafts, nonlinearities are generated by forces arising from the supporting hydraulic bearings. In this study, the rotating shaft is represented by a linear beam, while a simplified bearing model is employed so that the nonlinear supporting forces can be expressed analytically. The equations of motion of the coupled shaft-bearings system are constructed using the Craig–Bampton method of component mode synthesis, producing a model with as few as six degrees of freedom (d.o.f.). Using an invariant manifold approach, the individual nonlinear normal modes of the shaft-bearings system are then constructed, yielding a single-d.o.f. reduced-order model for each nonlinear mode. This requires a generalized formulation for the manifolds, since the system features damping as well as gyroscopic and nonconservative circulatory terms. The nonlinear modes are calculated numerically using a nonlinear Galerkin method that is able to capture large amplitude motions. The shaft response from the nonlinear mode model is shown to match extremely well the simulations from the reference Craig–Bampton model.
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Pierson, Bruce A. "Roller shaft mounting for sound and motion control." Journal of the Acoustical Society of America 103, no. 5 (1998): 2260. http://dx.doi.org/10.1121/1.422709.

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Dissertations / Theses on the topic "Shaft motion"

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Mohamed, Alhade Abdossllam. "Monitoring cracks in a rotating shaft." Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=186894.

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Condition monitoring of rotating shafts is gaining importance in industry due to the need to increase machine reliability and decrease the possible loss of production due to machine breakdown. In this work, the use of vibration signals for the detection of a crack within a shaft was investigated. The research involved the measurement of vibration signals during laboratory tests on a long rotating shaft rig. The focus of the experimental work was on the effect of cracks on the dynamics and the initiation and growth of cracks in the shaft. Measurements were taken from the shaft system both with simulated cracks (notches) cut at 45° and 90° to the shaft axis and with real propagating cracks initiated by a pre-crack cut. All defects were located at the mid- point along the shaft. The vibration responses and stresses were measured for different depths of crack. The vibration responses of the three different defects were compared using PSDs of the data to identify the change in position and magnitude of the peaks in the spectrum under each defect. Experiments to study the effect of defect depth at different shaft rotation speeds were also carried out. Finally, a shaft with a breathing crack (continuously opening and closing as the shaft rotates) was also studied experimentally, with the crack growing under normal steady state operating conditions. After completing the experiment work, the shaft was broken and the type of fracture studied. The results for both simulated and actual crack growth showed that vibration frequencies decreased as a crack progressed, indicating the possibility of using the vibration signal for crack detection. A significant relationship was found between the stage of crack growth and the vibration results. A finite element (FE) model was constructed to explore the relationship between the natural frequencies and crack depth and position along the shaft and to explain and validate the results of the experimental work. The FE model showed similar trends to the experimental results and also allowed the effect of different crack positions to be explored. The PSD data was fed into an artificial neural network after a feature extraction procedure was applied to significantly reduce the quantity of data whilst at the same time retaining the salient information. Such an approach results in a considerably reduced training time for the network due to the reduced complexity. The proposed scheme was shown to successfully identify the different defect levels. This method greatly enhances the capacity of an automated diagnostic process by linking increased capability in signal analysis to the predictive capability of the artificial neural network.
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Sabnavis, Giridhar. "Test Results for Shaft Tracking Behavior of Pads in a Spherical Pivot Type Tilting Pad Journal Bearing." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/32574.

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Most tilting pad journal bearing dynamic characteristics estimation methodologies assume perfect shaft tracking by the pads. In other words, they neglect pivot friction. In case of pads having point or line contact that operate under most normal load conditions, the pad tilting is due to a rocking motion which is not greatly influenced by friction. Hence this simplifying assumption might be acceptable. Heavier loading conditions, such as those typically encountered in gearboxes, demand the use of spherical pivots to avoid pivot failure. The spherical pivot is very attractive for this reason, but the tilting motion is rather a sliding action that must occur in the precision ball socket. A valid concern exists for verifying the soundness of assumed shaft tracking by the pads of such bearings. A â fixed test bearing, floating shaftâ type of test rig previously built for determining the dynamic characteristics of bearings was accordingly modified to facilitate the testing of shaft tracking for a spherical pivot bearing. This thesis describes the modifications carried out on the rig. The special instrumentation and data acquisition systems implemented to observe the minute pad motion are also discussed. Some preliminary results of the tests are presented for various loading conditions. They show excellent shaft tracking by the pads. More detailed testing and analysis of data is required to fully understand the pad motion and tracking ability of the spherical pivot design.
Master of Science
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Varonis, Orestes J. "Eddy Current Characterization of Stressed Steel and the Development of a Shaft Torque Eddy Current System." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1221065617.

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石田, 幸男, Yukio ISHIDA, 剛志 井上, Tsuyoshi INOUE, 軍. 劉, Jun LIU, 昭宏 鈴木, and Akihiro SUZUKI. "重力と非線形ばね特性の作用を受ける偏平軸の振動 (内部共振の影響)." 日本機械学会, 2001. http://hdl.handle.net/2237/9052.

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Gofroň, Vojtěch. "Měření a analýza dynamických vlastností rotujících částí strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232002.

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Diploma thesis focuses on measurement and analysis of shaft motion, torque, angular velocity and vibration. First part of the thesis deals with general issue of acquiring a digital signal. Next part describes suitable sensors for each measurement type, and data acquisition hardware. The last theoretical part describes methods for measurement data analysis and vibration diagnostics. Practical part of the thesis describes shaft motion and torque measurements made on laboratory equipment, and vibration measurement made on real machine system. Each measurement includes measurement data analysis and evaluation.
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Dhand, Neal. "Sleep shift /." Online version of thesis, 2009. http://hdl.handle.net/1850/9881.

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Burbano, Christian Eligio Rodríguez. "Diagnóstico de falhas em máquinas rotativas." Universidade Federal de Uberlândia, 2005. https://repositorio.ufu.br/handle/123456789/14818.

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The dynamic behavior of a cracked shaft was studied both in run-up and run-down transient motion. A mathematical model of the shaft was developed , and experimental tests were performed in order to validate the model. A experimental testing rig was conducted, containing an horizontal flexible rotor with a rigid disc in the mid point between the bearings. Experimental and theo retical responses were compared for both cracked and uncracked shafts. All tests were done for several acceleration rates and unbalance conditions. For the theoretical study of dynamic response of the cracked shaft, the stiffness matrix for a cracked element was deduced, using the modified crack Model of Mayes. The rotor model was obtained by using the finite elements method. The equations of motion were integrated in the time domain by using Newmark method to obtain the transient response. Comparing theoretical and experimental results validated the model. For this purpose, the modified Mayes model was used to represent the dynamic response of the crached shaft. Further simulations were conducted to study the influence of acceleration rates, unbalance amplitude /orientation and crack severity on the response of a cracked shaft, running on transient mo tion.
Neste trabalho apresenta -se um estudo do comportamento dinâmico de um rotor com trinca no regime transiente, tanto na parada como na partida. Foi desenvolvido um modelo matemático -computacional de um rotor com trinca e foram também realizados testes experimentais com vistas à validação do modelo. Para o estudo experimental, foi construida uma bancada constituida por um rotor flexível horizontal com um disco rígido montado na posição média do comprimento. A resposta experimental do rotor foi comparada para os casos com e sem trinca. Para tanto, foram usados dois eixos, um com trinca e, o outro, sem trinca. Os testes experimentais foram feitos para diferentes taxas de aceleração e condições de desbalanceamento. Para o estudo teórico da resposta dinâmica do rotor com trinca, foi determinada a matriz de flexibilidade para um elemento com falha, uma vez aplicado o modelo de trinca de Mayes modificado. O modelo do rotor foi obtido através do método dos elementos finitos, e para o cálculo da resposta dinâmica no regime transiente foi utilizado o método de integração numérica de Newmark. O modelo foi validado mediante a comparação dos resultados teóricos com os experimentais, tendo sido mostrado que o Modelo de Mayes modificado representa adequadamente o comportamento dinâmico de um rotor com trinca. Foram feitas simulações para estudar a influência das taxas de aceleração, da intensidade do desbalanceamento presente no sistema e da severidade da trinca sobre o comportamento do rotor com trinca no regime transiente.
Mestre em Engenharia Mecânica
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Fryščok, Tomáš. "Dynamika rotorů moderních turbodmychadel." Doctoral thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-234168.

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This dissertation thesis consists rotordynamics of modern turbocharger. First part begins with prediction of critical speed, prediction of onset instability of oil whirl and oil whip by XLTRC2 and comparison with measured data (Cascade diagram, shaft motion, FFT analysis). List of measurement method for the detection of the natural frequency of turbocharger (EMA). Create software for long term monitoring and recording and output data size reduction. Detection of critical speed by defined measurement methodology without using software simulation with measured data from the Cascade diagram, move the rotor shaft motion in the bearing, FFT analysis and results from measurements of natural frequencies. Comparison of predicted data (critical speed, prediction of onset instability) program XLTRC2 with the values measured by this approach measurement (waterfall diagram, shaft motion, FFT analysis)
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Cai, Weiting. "High performance shift invariant motion estimation and compensation in wavelet domain video compression." FIU Digital Commons, 2003. http://digitalcommons.fiu.edu/etd/1965.

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The contributions of this dissertation are in the development of two new interrelated approaches to video data compression: 1) A level-refined motion estimation and subband compensation method for the effective motion estimation and motion compensation. 2) A shift-invariant sub-decimation decomposition method in order to overcome the deficiency of the decimation process in estimating motion due to its shift-invariant property of wavelet transform. The enormous data generated by digital videos call for an intense need of efficient video compression techniques to conserve storage space and minimize bandwidth utilization. The main idea of video compression is to reduce the interpixel redundancies inside and between the video frames by applying motion estimation and motion compensation (MEMC) in combination with spatial transform coding. To locate the global minimum of the matching criterion function reasonably, hierarchical motion estimation by coarse to fine resolution refinements using discrete wavelet transform is applied due to its intrinsic multiresolution and scalability natures.
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Collins, Kevin Ralph. "The effect of cracks on the dynamic behavior of bars and shafts." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/44112.

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Nondestructive methods of detecting cracks in structural components and machinery are important, both in preventing failures and in establishing maintenance procedures. This thesis considers how the vibration behavior of cracked members can be modelled mathematically and how these mathematical models may lead to advancements in crack detection procedures. Two separate cases are considered: the longitudinal vibration of a cracked bar and the coupled vibrations of a cracked rotating shaft. In the longitudinal vibration study, the equation of motion is developed for a cantilevered bar with a symmetric surface crack. Next, Galerkin's Method is used to obtain one- and two-term approximate solutions. Both forced and free vibrations of the bar are analyzed. Graphical results showing the relationships between displacement and crack size, crack position, and forcing frequency are presented and discussed. Spectral analysis is used to compare uncracked and cracked bar behavior. Finally, a sensitivity analysis of the forced vibration case is conducted to observe how the forcing frequency affects the rate of change of steady-state response at the onset of cracking. In the second part of the thesis, a similar analysis is conducted for a cracked, simply-supported Timoshenko shaft rotating at a constant angular speed. The equations of motion derived by Wauer (b) are used as the basis of the study. Again, Galerkin's Method is applied to obtain approximate solutions. Time histories and spectra are used to observe how changes in various parameters influence the vibration behavior. The effects of mass eccentricity and gravity are studied. Finally, the effect of a periodic axial impact load is considered.
Master of Science
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Books on the topic "Shaft motion"

1

The crab and frog motion paradigm shift: Decoding and deciphering Taipei and Beijing's dialectical politics. Lanham, MD: University Press of America, 2001.

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Nava, Steve. Working the affect shift: Latina service workers in U.S. film. Boca Raton: BrownWalker Press, 2011.

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Walls, Margaret A. Distributional impacts of an environmental tax shift: The case of motor vehicle emissions taxes. Washington, DC: Resources for the Future, 1996.

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Hong, Sang Wook. Large Shift in Brightness Induced by Motion in Context. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780199794607.003.0048.

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Brightness of an object is not determined solely by physical intensity of light reflected from the object, but it is also affected by spatial structure of the surrounding light. In the new brightness illusion introduced by Hong and Kang, on the other hand, brightness of a stationary object can be greatly altered by the presence of another object that is moving around the stationary one. This novel brightness illusion sheds light on the question of how interaction among visual objects affects their appearance. This chapter discusses these concepts, including possible neural mechanisms, and explores implications for other illusions, including motion-induced blindness, among others.
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Anstis, Stuart. High-Level Organization of Motion. Oxford University Press, 2017. http://dx.doi.org/10.1093/acprof:oso/9780199794607.003.0064.

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Some ambiguous patterns of flashed dots are equally likely to be seen as jumping horizontally or vertically. Priming dots can disambiguate this motion, showing that observers prefer to see straight-line rather than L-shaped motion. Pairs of dots that circle around each other can become perceptually linked into larger, global shapes including many such pairs. Moving backgrounds can distort moving dots so that their circular paths appear elliptical or even linear. Observers radically misperceive the sliding motions of rods (chopsticks) or rings that glide over each other. Finally, a moving background can strongly shift or distort a flashed-up static cross. This chapter discusses these concepts.
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Troberg, Michelle, and Heather Burnett. From Latin to Modern French: A punctuated shift. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198747840.003.0008.

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This chapter presents data that challenge the prevailing assumption that as Latin evolves into French, it passes gradually from a satellite-framed language to a verb-framed language. In fact, Medieval French presents an unexpected intermediate stage, a grammar that includes a number of satellite-framed constructions that are present neither in Latin nor in Modern French (verb particles, goal-of-motion constructions, complex adjectival resultative constructions). Moreover, there is evidence that these constructions disappear abruptly during the same period. We provide a micro-parametric account for the presence of verb particles and goal-of-motion constructions in Medieval French whereby both are made possible through the presence of a null Path morpheme having the meaning of TO, which arises as early as Late Latin, as the Latin telicizing prefixes become decreasingly salient.
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W, Latham David, and Costa, L. A. Nicolaci da, eds. Large-scale structures and peculiar motions in the universe. San Francisco Calif: Astronomical Society of the Pacific, 1991.

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Yu, Peter Kien-hong. The Crab and Frog Motion Paradigm Shift: Decoding and Deciphering Taipei and Beijing's Dialectical Politics. University Press of America, 2002.

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Matsuo, M., E. Saitoh, and S. Maekawa. Spin-Mechatronics—mechanical generation of spin and spin current. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780198787075.003.0025.

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This chapter discusses interconversion phenomena between spin and mechanical angular momtum. In moving objects, the spin gauge fields emerge from inertial effects and produce angular momentum transfer between mechanical motion and spin. Such spin-mechanial effects are predicted by quantum theory in non-inertial frames, and confirmed by recent experiments including the resonance frequency shift in NMR, the stray field measurement of rotating metals, and the inverse spin Hall voltage generation in liquied metals. These spin-mechanical effects that arise via the spin-gauge fields open a new field of spintornics, where spin and mechanical motion couple harmoniously.
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Morawetz, Klaus. Selfenergy. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198797241.003.0006.

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The averaged wave functions allow defining the transport vertex. For the correlation functions this leads to the Generalised Kadanoff and Baym formalism with the Langreth–Wilkins rules. The meaning of the selfenergy is explored. The Green’s function is a secular equation in which the complicated motion of a particle during interaction is represented by the selfenergy. The quasiparticle picture is applicable to long trajectories, where the averaged velocity is of interest. In processes like emission, the Doppler shift depends on the local velocity and one has to return to the microscopic picture. The application scheme how to construct and use the selfenergy is presented.
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Book chapters on the topic "Shaft motion"

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Artyunin, A. I., S. V. Barsukov, and O. Yu Sumenkov. "Peculiarities of Motion of Pendulum on Mechanical System Engine Rotating Shaft." In Lecture Notes in Mechanical Engineering, 649–57. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22041-9_70.

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Kirk, Antony, Fotios Georgiades, and Chris Bingham. "Towards Determination of Critical Speeds of a Rotating Shaft with Eccentric Sleeves: Equations of Motion." In Proceedings of the 9th IFToMM International Conference on Rotor Dynamics, 1809–22. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-06590-8_149.

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Roy, Aparna, and Rana Roy. "Seismic Behaviour of R/C Elevated Water Tanks with Shaft Stagings: Effect of Biaxial Interaction and Ground Motion Characteristics." In Advances in Structural Engineering, 1205–15. New Delhi: Springer India, 2014. http://dx.doi.org/10.1007/978-81-322-2193-7_94.

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Sharoglazov, B. A., and V. V. Klementev. "Influence of Main Design Parameters of Motion Conversion Mechanism of Crankless Reciprocating Machine (Engine) on Torque Value on Output Shaft." In Lecture Notes in Mechanical Engineering, 523–32. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-22041-9_56.

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Joldes, Grand Roman, Adam Wittek, and Karol Miller. "Cortical Surface Motion Estimation for Brain Shift Prediction." In Computational Biomechanics for Medicine, 53–62. New York, NY: Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-5874-7_6.

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Kawaguchi, N., and Y. Takahashi. "Superluminal Motion of 3C27 3B and the Apparent Right Ascension Shift." In The Impact of VLBI on Astrophysics and Geophysics, 45–46. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-2949-4_17.

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Mohammad, Yasser, and Toyoaki Nishida. "Approximately Recurring Motif Discovery Using Shift Density Estimation." In Recent Trends in Applied Artificial Intelligence, 141–50. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-38577-3_15.

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Gonzalez-Gomez, Juan, and Eduardo Boemo. "Motion of Minimal Configurations of a Modular Robot: Sinusoidal, Lateral Rolling and Lateral Shift." In Climbing and Walking Robots, 667–74. Berlin, Heidelberg: Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/3-540-26415-9_80.

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Wehage, Kristopher, and Bahram Ravani. "Shift: A Dynamics Engine for Simulation and Motion Visualization of Complex Mechanisms and Robotic Systems." In Advances in Mechanism and Machine Science, 3057–67. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-20131-9_301.

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Boyd, Peter, Yinfeng Fang, and Honghai Liu. "Ultrasound Feature Evaluation for Robustness to Sensor Shift in Ultrasound Sensor Based Hand Motion Recognition." In Towards Autonomous Robotic Systems, 115–25. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-23807-0_10.

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Conference papers on the topic "Shaft motion"

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Haznadar, Z., S. Berberovic, Z. Stih, and R. Jokic. "Modeling of ship's shaft generator." In 2006 International Symposium on Power Electronics, Electrical Drives, Automation and Motion. IEEE, 2006. http://dx.doi.org/10.1109/speedam.2006.1649999.

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Sadeghi, Farshid, Carl Wassgren, Nicholas Prenger, Niranjan Ghaisas, and Eric Chamberlain. "Dynamics of Bearing Shaft Systems." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64331.

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The objective of this study was to develop a bearing model which can be combined with shafts, gears etc. to virtually investigate the motion and loading of the elements in the bearing. Models for ball, cylindrical and tapered rolling bearing dynamics have been designed, developed and combined with rigid and flexible shafts subject to various loading conditions and eccentric masses. The results from this investigation demonstrated that for rotating shaft bearing systems, the motion and the loads on the rolling elements are significantly different than that predicted by static and / or quasi-static type analysis. Results from shaft bearing system, where shaft may be supported by combinations of ball and rolling element bearings will be demonstrated. Cage motion and stability under various load and speed combinations will be discussed.
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Summers, T., R. E. Betz, B. McGrath, and G. C. Goodwin. "Induction Machine Shaft Speed Estimation Using Imaginary Power." In 2006 12th International Power Electronics and Motion Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/epepemc.2006.4778586.

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Makys, Pavol, Greg Asher, Mark Sumner, Qiang Gao, and Jan Vittek. "Shaft Sensorless Speed Control of Induction Motor Drive." In 2006 12th International Power Electronics and Motion Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/epepemc.2006.283103.

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Summers, Terrence, Robert Betz, Brendan McGrath, and Graham Goodwin. "Induction Machine Shaft Speed Estimation Using Imaginary Power." In 2006 12th International Power Electronics and Motion Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/epepemc.2006.283347.

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Makys, P., G. Asher, M. Sumner, Qiang Gao, and J. Vittek. "Shaft Sensorless Speed Control of Induction Motor Drive." In 2006 12th International Power Electronics and Motion Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/epepemc.2006.4778423.

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Lee, Chung-Ching, and Jacques M. Hervé. "Homokinetic Shaft-Coupling Mechanisms via Double Schoenflies-Motion Generators." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34517.

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The paper begins with introducing the 5-dimensional (5D) double Schoenflies-motion (X-X motion) set employing the group product of two 4D X-motion subgroups of displacements. Two families of primitive X-X motion generators are briefly outlined. Then, the geometric constraints for homokinetic transmission via Lie-group-algebraic properties of the displacement set are established. After that, using the described mechanical generators of X-X motion as the basic building cell, we geometrically generate two major families of homokinetic shaft-coupling mechanisms characterized by a subchain with a mechanical generator of 5D X-X motion set of displacement. The obtained constant-velocity shaft couplings (CVSC) are isoconstrained linkages with two parallel shaft axes, which will be less sensitive to manufacture errors. In addition, by means of the reordering method for displacement group compositions, more CVSC mechanisms can be further obtained. The simple or special findings stemming from the proposed general architectures are presented for the potential applications too.
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Payette, K. "The virtual shaft control algorithm for synchronized motion control." In Proceedings of the 1998 American Control Conference (ACC). IEEE, 1998. http://dx.doi.org/10.1109/acc.1998.688409.

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Degirmenci, Alperen, Paul M. Loschak, Cory M. Tschabrunn, Elad Anter, and Robert D. Howe. "Compensation for unconstrained catheter shaft motion in cardiac catheters." In 2016 IEEE International Conference on Robotics and Automation (ICRA). IEEE, 2016. http://dx.doi.org/10.1109/icra.2016.7487643.

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Zhang, Haoxiang, Feng Wang, and Bing Xu. "Modeling and Experimental Study of a Novel Power Split Hydraulic Transmission." In BATH/ASME 2018 Symposium on Fluid Power and Motion Control. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/fpmc2018-8921.

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The characteristics of a novel power split hydraulic transmission are studied in this paper. The new hydraulic transmission is built from a balanced vane pump with a floating ring. By coupling the floating ring to the output shaft, it becomes a hydraulic transmission, converting the mechanical power on the input shaft into the hydraulic power at the outlet and the mechanical power on the output shaft. By controlling the pressure at the outlet (control pressure), the power ratio transferred through mechanical and hydraulic path can be adjusted. One important feature of the new transmission is that the internal friction torque of the transmission, e.g., friction torque between vane tips and floating ring, helps to drive the output shaft whereas is wasted and turned into heat in a conventional vane pump. This increases the transfer efficiency from input shaft to output shaft. In this study, the characteristics of the input shaft torque, output shaft torque and the outlet flow rate are investigated through experimental studies. Results show that the shaft torques and the outlet flow rate are functions of control pressure and differential shaft speed. The mathematical models have been developed from the analytical and experimental results. The study provides a comprehensive understanding of the new transmission.
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Reports on the topic "Shaft motion"

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Keller, Jon, Yi Guo, and Latha Sethuraman. Gearbox Reliability Collaborative Investigation of Gearbox Motion and High-Speed-Shaft Loads. Office of Scientific and Technical Information (OSTI), March 2016. http://dx.doi.org/10.2172/1243302.

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Lee, Hung-Mou. Beam Motion Induced Doppler Shift of an Extended Object. Fort Belvoir, VA: Defense Technical Information Center, October 1995. http://dx.doi.org/10.21236/ada300541.

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Cusanelli, Dominic S., Bryson J. Metcalf, and Ann M. Powers. JHSS Baseline Shaft and Strut (BSS) Model 5653-3 Added Resistance and Powering and Ship Motions, Sea State 6 Random Waves and Regular Waves. Fort Belvoir, VA: Defense Technical Information Center, April 2009. http://dx.doi.org/10.21236/ada498365.

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Nishimura, Masatsugu, Yoshitaka Tezuka, Enrico Picotti, Mattia Bruschetta, Francesco Ambrogi, and Toru Yoshii. Study of Rider Model for Motorcycle Racing Simulation. SAE International, January 2020. http://dx.doi.org/10.4271/2019-32-0572.

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Various rider models have been proposed that provide control inputs for the simulation of motorcycle dynamics. However, those models are mostly used to simulate production motorcycles, so they assume that all motions are in the linear region such as those in a constant radius turn. As such, their performance is insufficient for simulating racing motorcycles that experience quick acceleration and braking. Therefore, this study proposes a new rider model for racing simulation that incorporates Nonlinear Model Predictive Control. In developing this model, it was built on the premise that it can cope with running conditions that lose contact with the front wheels or rear wheels so-called "endo" and "wheelie", which often occur during running with large acceleration or deceleration assuming a race. For the control inputs to the vehicle, we incorporated the lateral shift of the rider's center of gravity in addition to the normally used inputs such as the steering angle, throttle position, and braking force. We compared the performance of the new model with that of the conventional model under constant radius cornering and straight braking, as well as complex braking and acceleration in a single (hairpin) corner that represented a racing run. The results showed that the new rider model outperformed the conventional model, especially in the wider range of running speed usable for a simulation. In addition, we compared the simulation results for complex braking and acceleration in a single hairpin corner produced by the new model with data from an actual race and verified that the new model was able to accurately simulate the run of actual MotoGP riders.
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Importance of Motor Shaft Alignment. Office of Scientific and Technical Information (OSTI), September 2005. http://dx.doi.org/10.2172/15020342.

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The Importance of Motor Shaft Alignment, Motor Systems Tip Sheet #4 (Fact Sheet). Office of Scientific and Technical Information (OSTI), November 2012. http://dx.doi.org/10.2172/1056733.

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Farmer entangled in unguarded rotating motor drive-shaft on farm-modified ear-corn elevator. U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, October 2009. http://dx.doi.org/10.26616/nioshsface08mi134.

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