An Active Control Method of Structural Vibration Based on Non-probability Interval Confidence Reliability

Abstract

The invention discloses an active control method of structural vibration based on non-probability interval confidence reliability, wherein an automatically adjustable active vibration control system is designed, aiming at the uncertainty of structural parameters, in the original open-loop control system Based on the improvement, based on the calculation method of the dual reliability index of reliability and confidence, on the basis of the original basis, the research on the vibration suppression algorithm is carried out under the premise of the uncertainty of the structural parameters, and the confidence index is introduced to make the designed The self-adjusting active vibration control system can improve the reliability of the structure. The feasibility of the automatically adjustable active vibration control system proposed by the present invention is verified by using a continuous model and a discrete model, and this control method can be used in the design of active control systems of uncertain structures in the future.

Description

technical field [0001] The present invention relates to the field of active vibration control of structures, in particular to the calculation of double reliability indexes based on reliability and confidence by improving the original open-loop control system when considering the uncertainty of external force, material, voltage and other parameters Method, based on the original basis, the research on the vibration suppression algorithm under the premise of the uncertainty of the structural parameters is introduced, and the confidence index is introduced, so that the designed automatically adjustable active vibration control system can improve the reliability of the structure. Background technique [0002] In recent years, with the rapid development of aerospace industry such as Beidou navigation project and space station in the current era, different types of aircraft with different purposes have appeared; Require. [0003] Noise is a serious vibration source that cannot be ...

AI Technical Summary

Problems solved by technology

Although, for the traditional active vibration control system, it has the advantages of excellent effect in low frequency vibration and light weight required for operation, but its characteristics of low uncertainty and reliability cannot be ignored

But in practical applications, uncertainty will not only not improve the effective performance of the active control system, but also destroy its stability

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