Dynamics of an orbiting flexible beam with a moving mass

AIAA Journal ◽  
2001 ◽  
Vol 39 ◽  
pp. 2225-2227
Author(s):  
D. C. D. Oguamanam ◽  
J. S. Hansen ◽  
G. R. Heppler
Keyword(s):  
Flexible Beam ◽  
Moving Mass

On the dynamic behaviour of a flexible beam carrying a moving mass

1994 ◽  
Vol 5 (4) ◽  
pp. 493-513 ◽  
Author(s):  
F. Khalily ◽  
M. F. Golnaraghi ◽  
G. R. Heppler
Keyword(s):  
Dynamic Behaviour ◽  
Flexible Beam ◽  
Moving Mass

scholarly journals Dynamics of a Flexible Beam Supported Elastically with Moving Mass Spring System.

2002 ◽  
Vol 68 (673) ◽  
pp. 2570-2576 ◽  
Author(s):  
Yoshiaki TERUMICHI ◽  
Yoshihiro SUDA ◽  
Satoshi IKUTA ◽  
Shinichi OHNO
Keyword(s):  
Flexible Beam ◽  
Moving Mass ◽  
Spring System ◽  
Mass Spring

Dynamics of an Orbiting Flexible Beam with a Moving Mass

AIAA Journal ◽  
2001 ◽  
Vol 39 (11) ◽  
pp. 2225-2227 ◽  
Author(s):  
D. C. D. Oguamanam ◽  
J. S. Hansen ◽  
G. R. Heppler
Keyword(s):  
Flexible Beam ◽  
Moving Mass

Dynamics and Control of an Elastic Guideway Under a Moving Mass

2001 ◽  
Author(s):  
Hanno Reckmann ◽  
Karl Popp
Keyword(s):  
Adaptive Control ◽  
Control Strategy ◽  
Control Strategies ◽  
Moving Load ◽  
Active Vibration Control ◽  
Elastic Beam ◽  
Flexible Beam ◽  
Moving Mass ◽  
System Matrix ◽  
Optimal Control Strategy

Abstract Lightweight structures under moving loads occur in robotics, ground transportation and in space stations. Increasing velocities lead to an excitation of structural vibrations with high amplitudes. This phenomenon may affect the precision of machine tools and robots and the safety of transport operations. An example of such a lightweight structure is a flexible beam under a moving load. In this paper we investigate the possibility of active vibration control of the elastic beam using a king post truss system (KPTS). The system is excited by both a mass moving with constant velocity and a mass performing an accelerated motion. The aims are to minimize the vibrations of the system and the transverse deflections under the moving mass. The system to be analysed and controlled is time variant due to the moving mass. The fast motion of the mass leads to a highly dynamic system with a fast changing system matrix. We use control inputs at fixed positions for control of the system with distributed parameters. The system is modelled by a finite element approach to implement the moving mass in the system description. To reduce the numerical complexity of the system a modal transformation is applied and numerical investigations of the system are performed. We apply two different control strategies to reach the aims. The first one is an optimal discrete time approach which allows to reach both aims. The second one is an adaptive control strategy with a simple model to minimize the deflection under the moving mass. The numerical results are compared with experimental data. In the case of a constant mass velocity the optimal control strategy leads to a reduction of the deflection under the moving mass of more than 98% compared to the uncontrolled system. The reduction of the deflection under the moving mass applying adaptive control results in a smaller reduction of about 96%.

Optimized Modeling of Flexible Beam Structure with Pole-Zero Estimation

2019 ◽  
Vol 13 (3) ◽  
pp. 148
Author(s):  
Rickey Pek Eek Ting ◽  
Intan Zaurah Mat Darus ◽  
Shafishuhaza Sahlan ◽  
Mat Hussin Ab Talib
Keyword(s):  
Flexible Beam ◽  
Beam Structure

Discrete Modeling and Experimental Validation of the Model of a Cantilever Flexible Beam

2015 ◽  
Vol 8 (2) ◽  
pp. 205
Author(s):  
Antonio Carlos de Assis Silva ◽  
João Bosco Gonçalves ◽  
Alvaro Manoel de Souza Soares
Keyword(s):  
Experimental Validation ◽  
Flexible Beam ◽  
Discrete Modeling
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