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Second-order ideal model of vehicle Inerter-Spring-Damper (ISD) suspension based on Acceleration-Driven-Damper (ADD) positive real network optimization

A technology of network optimization and ideal model, which is applied in the field of vehicle suspension system modeling, can solve the problems that the performance of the suspension system is not fully improved, and achieve the effect of improving the overall performance, improving the overall performance, and improving the low-frequency resonance of the vehicle

Active Publication Date: 2019-07-12
JIANGSU UNIV
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Problems solved by technology

[0004] Chinese patent CN108932375A discloses a comprehensive passive implementation method of vehicle ISD suspension network of high-order impedance transfer function, which can realize low-order high-order transfer function, but its structure is generally the simplest form, which is mostly used for passive implementation. Suspension system Performance isn't all improved

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  • Second-order ideal model of vehicle Inerter-Spring-Damper (ISD) suspension based on Acceleration-Driven-Damper (ADD) positive real network optimization
  • Second-order ideal model of vehicle Inerter-Spring-Damper (ISD) suspension based on Acceleration-Driven-Damper (ADD) positive real network optimization
  • Second-order ideal model of vehicle Inerter-Spring-Damper (ISD) suspension based on Acceleration-Driven-Damper (ADD) positive real network optimization

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Embodiment Construction

[0044] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited thereto.

[0045] The construction of the vehicle ISD suspension second-order ideal model based on ADD positive real network optimization of the present invention includes: step 1): establishing a quarter model of the ISD suspension; step 2): determining the speed-type impedance transfer of the second-order positive real network function; step 3): determine the ADD control algorithm; step 4): select the displacement input model of road surface roughness; step 5): determine and optimize the artificial fish swarm optimization algorithm; step 6): use the passive network comprehensive theory to solve the ISD suspension structure.

[0046] Wherein, step 1) specifically is: according to figure 2 For the suspension model shown, establish the kinematic equations:

[0047]

[0048] Among them, m s is the spru...

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Abstract

The invention discloses a second-order ideal model of a vehicle Inerter-Spring-Damper (ISD) suspension based on Acceleration-Driven-Damper (ADD) positive real network optimization. The second-order ideal model is formed by series and parallel connection of components such as springs, dampers and inerters. The ideal model is obtained through Laplace transform of an ISD suspension kinematics equation, second-order positive real network impedance constraint and ADD control, artificial fish swarm optimization solution and a passive network synthesis theory. The novel suspension ideal model and research idea are provided, relatively ideal comprehensive performance can be obtained by the ISD suspension in each frequency domain section, and a foundation is laid for the active control of the ISD suspension.

Description

technical field [0001] The invention belongs to the field of vehicle suspension system modeling, in particular to the vehicle ISD (Inerter-Spring-Damper) suspension system modeling using an inerter device. The invention relates to a dynamic second-order ideal model of a vehicle ISD suspension, in particular to an ISD suspension ideal model combined with ADD (Acceleration-Driven-Damper) control and positive real network optimization. Background technique [0002] Smith, a scholar at the University of Cambridge, proposed the idea of ​​an inerter in 2003, and designed a rack and pinion inerter and a ball screw inerter to achieve a strict correspondence between the mechanical network and the circuit network. Vehicle ISD suspension is the abbreviation of the new type of suspension composed of "inerter-spring-damper". Limiting the problem of suspension performance, the inerter can effectively reduce the low-frequency resonance of the vehicle, improve the vibration isolation perfo...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G17/018
CPCB60G17/018B60G2600/1871
Inventor 杨晓峰赵文涛刘雁玲沈钰杰颜龙徐旭单琳杨艺
Owner JIANGSU UNIV
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