A design method of shock absorber

Abstract

The invention discloses a design method for shock absorbers. The method includes the steps of (1) building a shock absorber model, wiring a motion equation of a shock absorber, and obtaining a standard model by redefining parameters; (2) evaluating the feasibility of simultaneous vibration attenuation of a vibration attenuation system and an isolating system, wherein information, such as a series of features of the vibration attenuation system, the feasibility and vibration attenuation amount of the simultaneous vibration attenuation of the vibration attenuation system and the isolating system can be obtained in the steps above; (3) designing parameters of the isolating system, wherein according to a proposed epsilon-domain method, vibration transfer and attenuation of the vibration attenuation system and the isolating system are ensured at the same time, and the attenuation property remains uniform; (4) evaluating the vibration attenuation property of the shock absorber, wherein a corresponding epsilon value is selected according to the step 3, feasibility evaluation is conducted according to the step 2, and then final parameters of the isolating system are determined or different backup schemes are provided according to an evaluation result. By means of the design method for the shock absorbers, properties of the existing shock absorbers can be significantly improved.

Description

technical field [0001] The invention belongs to the field of vibration damper design, in particular to a design method capable of global optimization to improve the performance of the damper. Background technique [0002] Since the invention of the classic undamped vibration absorber, the vibration absorber has been widely used, such as vibration absorption for high-rise and tower buildings, vibration reduction for trains and aircraft systems, etc. This type of absorption of vibration transmission with damping is often referred to as passive damping. The passive shock absorber is mainly used to reduce the steady-state vibration. When used at a single frequency, it can be undamped, but it can only act on this single fixed frequency and has the disadvantage of infinitely long transient response time. To overcome this shortcoming, it is usually necessary to add damping, although this will not completely absorb the vibration, but the transient response can be greatly improved, ...

AI Technical Summary

Problems solved by technology

[0006] Purpose of the invention: The present invention proposes and verifies a new design for existing shock absorbers that only consider the vibration transmission to the vibration damping system, but do not consider the vibration attenuation of the isolation system itself at the same time, resulting in performance attenuation and structural fatigue. method, so that the designed shock absorber can suppress the vibration conduction of the vibration damping system and the isolation system at the same time

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