Resonant frequency self-tracking giant magnetostrictive vehicle suspension vibration reduction device

Abstract

The invention discloses a resonant frequency self-tracking giant magnetostrictive vehicle suspension vibration reduction device. The advantages of a giant magnetostrictive material that the energy density is great, the conversion efficiency is high and the responding speed is rapid are utilized, so that the giant magnetostrictive material is embedded into the vehicle suspension vibration reduction device; mechanical energy is converted into electromagnetic energy by a magnetostrictive converse effect and an electromagnetic induction principle; resonant frequency points of a plurality of LRC oscillation circuits are adjusted by a controller with a frequency tracking function, so that the circuit can reach a resonant energy consumption state and multi-mode passive vibration reduction is realized; a vibration reduction control signal is sent out by a control circuit and the vibration is balanced by driving a GMM through the magnetostrictive positive effect to realize active vibration reduction. The resonant frequency self-tracking giant magnetostrictive vehicle suspension vibration reduction device has the beneficial effects that the resonant frequency self-tracking of the vibration reduction device is realized; the structure is simple, the respond is rapid, and the vibration reduction effect is good.

Description

technical field [0001] The invention relates to a vehicle suspension shock absorber, in particular to a giant magnetostrictive vehicle suspension shock absorber with self-tracking resonant frequency. Background technique [0002] The suspension of the vehicle will vibrate due to the impact of the elastic element, which will affect the safety and ride comfort of the vehicle. In order to avoid the adverse effects of vehicle suspension vibration, a shock absorber can be installed on the vehicle suspension to achieve the purpose of vibration reduction. [0003] The shock absorber of the vehicle suspension is mostly a hydraulic shock absorber. Its working principle is that when the frame (or body) and the axle are vibrated and there is relative motion, the piston in the shock absorber moves up and down, and the shock absorber cavity The oil in the cavity will repeatedly flow from one cavity to another cavity through different pores. At this time, the friction between the hole w...

AI Technical Summary

Problems solved by technology

Under actual working conditions, the vibration frequency of the vehicle suspension is affected by various factors such as road conditions and loads, and is often not within the resonant frequency bandwidth of the shock absorber, which makes the vibration reduction effect of the shock absorber worse

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