Vehicle inertia suspension structure and parameter determination method thereof

Abstract

The invention discloses a vehicle inertia suspension structure and a parameter determination method thereof, and belongs to the technical field of vehicle suspension vibration isolation. The vehicle inertia suspension is formed by serially connecting two stages; the first stage consists of two elements of a spring and a damper connected in parallel; and the second stage consists of two elements of an inertia container and a spring connected in parallel. The two elements of the inertia container and the spring connected in parallel are used for generating the acting effect of parallel resonance under specific conditions to realize the inhibition of vehicle body mass vibration so as to effectively buffer and attenuate the road surface unevenness impact. A quantum genetic algorithm is used for optimally calculating suspension parameters; the simulated analysis indicates that the vehicle inertia suspension structure and the parameter determination method thereof, disclosed by the invention, obviously improve the suspension performance indexes compared with a transmission passive suspension; and the vehicle driving smoothness and safety are both effectively improved.

Description

technical field [0001] The invention belongs to the field of vehicle suspension vibration isolation, and relates to a vehicle inertia suspension structure and a parameter determination method thereof. Background technique [0002] Since the concept of "inertial mass" was proposed, it has received extensive attention from scholars in the fields of control engineering and mechanical vibration isolation. So far, the vibration isolation potential of mechanical isolation networks using inerters has been demonstrated in the fields of vehicle suspension, building vibration isolation, and high-performance motorcycle steering compensation. [0003] The inerter has the same physical properties as the mass element, and the characteristics of its two ends are more suitable for engineering applications. Michael Z.Q.Chen pointed out in the article "Influence of inerter on natural frequencies of vibration systems" that the inerter has an effect on the natural frequency of the vibration sys...

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Problems solved by technology

However, through the analysis of its structural characteristics, it can be seen that since the inerter and the damping element can only function under the support and protection of the elastic element, the dynamic shock absorber at both ends cannot be directly used as a vehicle suspension structure, so it needs to be improved Designed to achieve better practical results

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