An Inerter with Variable Inertia Coefficient for Adaptive Working Conditions of Commercial Vehicles

Abstract

The invention relates to a commercial vehicle inerter with an adjustable inertance being self-adaptive to working conditions and belongs to the technical field of inerters for vehicles. The commercialvehicle inerter with the adjustable inertance being self-adaptive to working conditions comprises an inerter body, a flywheel assembly, a metamorphic mechanism and a connection rod-slider mechanism.The inerter body converts vertical movement of a vehicle frame and an axle into rotation of the flywheel assembly, and the effect of increasing the 'virtual mass' of the inerter is achieved. The commercial vehicle inerter with the adjustable inertance being self-adaptive to working conditions is reliable in work and free of time lag; under the no-load work condition and the full load working condition, based on the metamorphic principle, the structure of the metamorphic mechanism can conduct self-reconstruction and reassembly; when the vehicle is under the no-load working condition, the inerter works, the effect of lowering the no-load offset frequency is achieved by increasing the 'virtual mass' of the inerter, the flywheel assembly can conduct self-adaptive adjustment of the inertance according to the external excitation frequency, so that the inertance is continuously variable; when the vehicle is under the full-load working condition, the inerter does not work, it is guaranteed that the offset frequency of a suspension system is the designed full-load offset frequency, the stress of the suspension system is not increased, and the service life of the suspension is prolonged.

Description

technical field [0001] The invention relates to the technical field of inerters for vehicles, in particular to an inerter with variable inertial coefficients for adaptive working conditions of commercial vehicles. Background technique [0002] In 2001, Professor Smith of the University of Cambridge in the United Kingdom first proposed the concept of an inerter when studying the electromechanical similarity theory, and verified for the first time that the inerter has the advantage of improving the performance of traditional passive suspensions. The asymmetric relationship between the mechanical system and the circuit system caused by the characteristics of the end points makes the electromechanical simulation theory completely equivalent. It is a breakthrough in the "mass-spring-damping" structural system. Damper, ISD)” structure added passive suspension, its vibration isolation performance is better than the corresponding traditional passive suspension, and compared with sem...

AI Technical Summary

Problems solved by technology

However, under different working conditions, the inertia coefficient of traditional inerters cannot be adjusted. Moreover, from the existing research results of variable inertia coefficient inerters, although variable inertia coefficients can be realized, there are processing Difficulty, control time-lag phenomenon, inertia coefficient cannot be continuously variable, and inertia coefficient can only be increased in one direction under instantaneous impact conditions. It is urgent to design a reliable, no-time-lag phenomenon, inertia coefficient An inerter that is continuously variable and can adaptively adjust the inertia coefficient according to the external excitation frequency

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