Vehicle inerter-spring-damper (ISD) suspension first-order ideal model based on acceleration-driven-damper (ADD) positive real network optimization

A network optimization and ideal model technology, applied in the field of vehicle suspension system modeling, can solve the problem that the performance of the suspension system is not fully improved

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 the 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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  • Vehicle inerter-spring-damper (ISD) suspension first-order ideal model based on acceleration-driven-damper (ADD) positive real network optimization
  • Vehicle inerter-spring-damper (ISD) suspension first-order ideal model based on acceleration-driven-damper (ADD) positive real network optimization
  • Vehicle inerter-spring-damper (ISD) suspension first-order ideal model based on acceleration-driven-damper (ADD) positive real network optimization

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Embodiment Construction

[0045] 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.

[0046] The construction of the first-order ideal model of vehicle ISD suspension based on ADD positive real network optimization of the present invention includes: Step 1): establish a quarter model of ISD suspension; Step 2): determine the speed type impedance transfer of the first-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.

[0047] Wherein, step 1) specifically is: according to figure 2 For the suspension model shown, establish the kinematic equations:

[0048]

[0049] Among them, m s is the sprung mass,...

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Abstract

The invention discloses a vehicle inerter-spring-damper (ISD) suspension first-order ideal model based on acceleration-driven-damper (ADD) positive real network optimization. The first-order ideal model is formed by connecting elements of a spring, a damper, an inerter and the like in parallel and series. The first-order ideal model is obtained through laplace transform of an ISD suspension kinematical equation, addition of ADD control, artificial fish swarm optimization solution and positive real judgment of a passive network comprehensive theory. The invention provides a novel suspension ideal model. The ISD suspension can obtain ideal comprehensive performance in various frequency bands.

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. The invention relates to a dynamic first-order ideal model of a vehicle ISD suspension, in particular to an ISD suspension ideal model combining 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 performance of th...

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Application Information

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IPC IPC(8): B60G17/018
CPCB60G17/018B60G2600/187
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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