Results 161 to 170 of about 581 (218)

Eigenvalue sensitivity minimisation for robust pole placement by the receptance method [PDF]

Mechanical Systems and Signal Processing, 2022
The problem of robust pole placement in active structural vibration control by the method of receptance is considered in this paper. Expressions are derived for the eigenvalue sensitivities to parametric perturbations, which are subsequently minimised to
Jackie Quan Teoh, Neil Ferguson, Stephen J Elliott   +2 more
exaly   +3 more sources

Vibration analysis of a complex fluid-conveying piping system with general boundary conditions using the receptance method

International Journal of Pressure Vessels and Piping, 2018
In this paper, a new set of six-variable linear partial differential equations of motion of fluid-conveying pipes with general boundary conditions are derived using the Hamilton principle and these equations are solved by the receptance method.
Huajiang Ouyang
exaly   +3 more sources

Receptance-based antiresonant frequency assignment of an uncertain dynamic system using interval multiobjective optimization method

Journal of Sound and Vibration, 2022
This study addresses the antiresonant frequency assignment problem of vibrating systems with uncertainty, which is solved using an interval multi-objective optimization method. The study accounts for several uncertain factors, including in the structural
Tao Zhang, Huajiang Ouyang, Tianyun Li   +2 more
exaly   +3 more sources

Pole-zero assignment by the receptance method: multi-input active vibration control [PDF]

Mechanical Systems and Signal Processing, 2022
The famous receptance method for the active vibration control has been mainly applied for pole placement. In this paper, it is exploited to solve the multi-input antiresonance assignment and then it is extended to handle the simultaneous pole-zero ...
Dario Richiedei, Iacopo Tamellin, Alberto Trevisani   +2 more
exaly   +3 more sources

An indirect torsional vibration receptance measurement method for shaft structures [PDF]

Journal of Sound and Vibration, 2016
© 2016 Elsevier Ltd. All rights reserved.In this paper, an indirect method for measuring torsional vibration of shaft structures is established. In conventional torsional vibration measurement, knowledge of two fundamental quantities is needed: a torque ...
Huajiang Ouyang, Wanyou Li, Zhijun Shuai   +2 more
exaly   +2 more sources

Active Vibration Suppression by the Receptance Method: Partial Pole Placement, Robustness and Experiments

Springer Proceedings in Physics, 2011
The receptance method in active vibration suppression is presented. Robust eigenvalue assignment is achieved by selecting controller parameters that not only place the eigenvalues at desired locations but also minimize the sensitivity of the eigenvalues ...
R Samin, John E Mottershead, Mottershead John E   +2 more
exaly   +2 more sources

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Leading-edge receptivity by adjoint methods

Journal of Fluid Mechanics, 2006
The properties of adjoint operators and the method of composite expansion are used to study the generation of Tollmien–Schlichting (TS) waves in the leading-edge region of an incompressible, flat-plate boundary layer. Following the classical asymptotic approach, the flow field is divided into an initial receptivity region, where the unsteady motion is ...
LUCHINI, Paolo, GIANNETTI, FLAVIO
openaire   +1 more source

The Method of Receptances for Continuous Rods

Journal of Applied Mechanics, 2014
It is shown that it is possible in general to assign 2n poles of an axially vibrating nonuniform rod by sensing the state at n points along the rod and by using an actuator which applies the control force. Moreover, the assignment of poles may be done without continuous or discrete analytical modeling.
Amit Maha, Y. M. Ram
openaire   +1 more source

Structural modification and active vibration control by the receptance method: Review and tutorial

Mechanical Systems and Signal Processing
The problem of eigenvalue assignment, both generally and in terms of vibration suppression, has a long history, as indeed does the use of measured receptance data in understanding the dynamic behaviour of compound systems made up of a number of component
Huajiang Ouyang, Xiaojun Wei, John E Mottershead   +2 more
exaly   +2 more sources

RIAP: A Method for Effective Receptive Field Rectification

2021
Receptive field (RF) plays a vital role in deep convolutional networks. Padding schemes are related to the RF closely. In this paper, we analyze the information attenuation caused by zero-padding during the convolution operations in CNNs theoretically. Moreover, the weight bias accumulated by zero-padding along the forward propagation is also analyzed.
Zhenzhen Li, Kin-Wang Poon, Xuan Yang
openaire   +1 more source