Structural vibration-oriented active control optimal configuration method

A technology of structural vibration and optimized configuration, applied in vibration testing, design optimization/simulation, testing of machine/structural components, etc. The effect of improving usability

Inactive Publication Date: 2020-08-11
HENAN INST OF ENG
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Problems solved by technology

The above-mentioned optimization schemes are either based on the determination of the number of sensors and actuators, and are only optimized for their positions; or the calculation complexity in the optimization process is large, resulting in slow convergence. The optimization algorithm has become an urgent problem to be solved

Method used

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  • Structural vibration-oriented active control optimal configuration method
  • Structural vibration-oriented active control optimal configuration method
  • Structural vibration-oriented active control optimal configuration method

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Embodiment

[0061] Example: see figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 .

[0062] Oriented to the optimal configuration method of structural vibration active control and the vibration control experimental platform, taking the piezoelectric intelligent cantilever beam as the research object, an optimal configuration method of piezoelectric sensors and actuators in the active control of structural vibration is proposed; firstly, based on the research model, the proposed Based on the optimization criteria of sensors and actuators, the optimization objective function is established; secondly, the natural frequency of each order and the modal strain of each order of the piezoelectric cantilever are obtained, and they are substituted into the optimization objective function; the genetic algorithm is used for configuration optimization, and the obtained Preliminary optimal configu...

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Abstract

The invention discloses a structural vibration-oriented active control optimal configuration method and a vibration control experiment platform. A piezoelectric intelligent cantilever beam is taken asa research object, an optimal configuration method of a piezoelectric sensor and an actuator in structural vibration active control is provided, firstly, providing sensor and actuator optimization criteria according to a research model, and establishing an optimization objective function; secondly, solving the inherent frequency, modal strain and the like of each order of the piezoelectric cantilever beam, and substituting the inherent frequency, modal strain and the like into an optimization objective function; carrying out configuration optimization by adopting a genetic algorithm to obtaina preliminary optimal configuration scheme; thirdly, performing a comparative vibration experiment of each configuration scheme according to an actual test, and finally determining an optimal configuration scheme; and finally, establishing a vibration control system experiment platform according to the final configuration scheme, and carrying out structural vibration active control experiment verification. Experimental results show that the vibration control effect is good, so that the feasibility and effectiveness of the optimal configuration scheme provided by the invention are indirectly verified.

Description

Technical field: [0001] The invention relates to the field of structural vibration control, in particular to an optimal configuration method for active control of structural vibration and a vibration control experimental platform. Background technique: [0002] In the active vibration control system of piezoelectric smart structures, the number and position of piezoelectric sensors and actuators are of great significance to the characteristics of piezoelectric smart structures, vibration control effect and system implementation cost. How to achieve the best control effect with the least number and the best position in the case of the least consumption has become an important research direction in the field of structural vibration control. [0003] In the process of advancing the intelligent structural vibration control system for engineering applications, due to the improper selection of the positions of the sensors and actuators, the signals collected by the sensors will co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M7/02G06F30/27G06N3/12
CPCG01M7/022G06N3/126G06F30/27
Inventor 黄全振刘家磊张洋王超郭新军黄明明高继勋陈素霞周成虎
Owner HENAN INST OF ENG
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