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Desai, R.R. (author), Cvetković, M. (author), Papaioannou, G. (author), Happee, R. (author)
Due to the complexity of the human body and its neuromuscular stabilization, it has been challenging to efficiently and accurately predict human motion and capture posture while being driven. Existing simple models of the seated human body are mostly two-dimensional and developed in the mid-sagittal plane exposed to in-plane excitation. Such...
conference paper 2023
document
Liang, Jianbin (author), Jiang, James W. (author), Callegaro, Alan Dorneles (author), Bilgin, Berker (author), Dong, J. (author), Reeves, Debbie (author), Emadi, Ali (author)
This study presents a numerical modelling approach for the prediction of vibration and acoustic noise for a 24/16 traction switched reluctance machine (SRM). The numerical modelling includes the simulation of electromagnetic force in JMAG, the calculation of natural frequencies and the simulation of vibration and acoustic noise in ACTRAN....
journal article 2020
document
Sauvage, L.L.F. (author), Wei, W. (author), Martinez, M.J. (author)
Pastel paintings are one of the most fragile types of objects of art. When handling loan requests, conservators lack scientific data to assess the risk for damage in transport, and thus for making decisions whether they can be transported. A research project was initiated in 2014 to investigate the effect of vibrations on the condition of pastel...
journal article 2018
document
Chiriboga Arroyo, P.G. (author)
Preventing vibration damage from occurring to valuable and sensitive canvas paintings is of main concern for museums and art conservation institutions. This concern has grown in recent years due to the increasing demand of paintings for exhibitions worldwide and the concomitant need for their handling and transport. The vibration of the canvas...
doctoral thesis 2013
document
Venstra, W.J. (author), Van Leeuwen, R. (author), Van der Zant, H.S.J. (author)
We demonstrate a strong coupling between the flexural vibration modes of a clamped-clamped micromechanical resonator vibrating at low amplitudes. This coupling enables the direct measurement of the frequency response via amplitude- and phase modulation schemes using the fundamental mode as a mechanical detector. In the linear regime, a frequency...
journal article 2012
document
Horchens, L. (author)
Flexural waves play a significant role for the radiation of sound from plates. The analysis of flexural wave fields enables the detection of sources and transmission paths in plate-like structures. The measurement of these wave fields can be carried out indirectly by means of near-field acoustic holography, which determines the vibrational wave...
journal article 2011
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Witkamp, B. (author), Poot, M. (author), Pathangi, H. (author), Hüttel, A.K. (author), Van der Zant, H.S.J. (author)
We have fabricated suspended metal paddle resonators with carbon nanotubes functioning as self-detecting torsional springs. We observe gate-tunable resonances that either tune to higher or to lower frequencies when increasing the dc voltage on the back gate. We attribute the former modes to flexural vibrations of the paddle resonator, while the...
journal article 2008
document
Kolkman, P.A. (author), Jongeling, T.H.G. (author)
English translation of ""Dynamisch gedrag van waterbouwkundige constructies". The subject is treated from the standpoint of hydrodynamics and applied mechanics, in which a certain knowledge of both fields of study is presupposed. The interaction phenomena are discussed on that basis. The subject matter is not treated exhaustively, but the book...
report 2007
document
Engels, W.P. (author), Baumann, O.N. (author), Elliott, S.J. (author), Fraanje, P.R. (author)
This paper examines the performance of centralized and decentralized feedback controllers on a plate with multiple colocated velocity sensors and force actuators. The performance is measured by the reduction in either kinetic energy or sound radiation, when the plate is excited with a randomly distributed, white pressure field or colored noise....
journal article 2006
document
Wapenaar, C.P.A. (author), Fokkema, J. (author), Snieder, R. (author)
We compare two approaches for deriving the fact that the Green’s function in an arbitrary inhomogeneous open system can be obtained by cross correlating recordings of the wave field at two positions. One approach is based on physical arguments, exploiting the principle of time-reversal invariance of the acoustic wave equation. The other approach...
journal article 2005
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TNO (author)
other 1996
document
van Woerkom, P.T.L.M. (author)
For the simulation of rigid spacecraft manipulator dynamics there exists efficient recursive software. Extension of this software for the simulation of flexible spacecraft-manipulator dynamics would have important advantages. In this paper the method of Equivalent Flexibility Modelling (EFM) is outlined. Each flexible body is re-modelled as a...
report 1989
document
Kolkman, P.A. (author), Lindijer, G.J.H. (author), Uwland, J. (author)
report 1986
document
van Woerkom, P.T.L.M. (author)
Mathematical models of the dynamics of spacecraft are needed to carry out numerical simulations, to gain insight into the characteristics of the spacecraft dynamics, and to synthesize control algorithms suitable for online system Identification, estimation, and control. Increases in size and mechanical complexity of spacecraft result in...
report 1985
document
Jong, R.J. de (author)
report 1982
document
Kerstma, J. (author)
report 1982
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Ludikhuize, D. (author)
report 1981
document
Jongeling, T.H.G. (author)
report 1980
document
Vermeer, A.C.M. (author)
report 1980
document
Bunt, J. van den (author)
report 1977
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