文档介绍：
带附加气室空气悬架的综合性能优化#
江洪,黄定师*
(江苏大学机械工程学院,江苏镇江 212013)
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摘要:以带附加气室的空气悬架为研究对象,建立空气弹簧-连接管路-附加气室数学模型,
将其以空气弹簧非线性力的形式引入到 1/4 车辆动力学模型中;以寻求车辆乘坐舒适性、轮
胎接地性与操纵稳定性的综合性能最优为目标,对典型工况下的附加气室容积与减振器阻尼
进行寻优。优化结果表明,悬架的综合性能、乘坐舒适性得到改善,轮胎接地性与操纵稳定
性略有降低。台架试验与仿真结果基本吻合。
关键词:车辆工程;空气悬架;附加气室;阻尼;优化
中图分类号:+
Integrated Performance Optimization of Air suspension
With Auxiliary Chamber
JIANG Hong, HUANG Dingshi
(School of Mechanic Engineering, Jiangsu Univeristy, JiangSu ZhenJiang 212013)
Abstract: Taking air suspension with auxiliary chamber as the study target,the mathematical
model of air spring-connecting pipe-auxiliary chamber was established. And the model was
carried through into 1/4 vehicle dynamic model in the form of nonlinear force of air spring. When
the matching optimization of damping and auxiliary chamber was chosen, the integrated optimal
performance of the fort, the road holding and the handling stability was selected for
optimization objective. Optimization results show that the integrated performance and the ride
comfort were improved. The simulation results agree with the testing data of the test bench.
Keywords: Vehicle engineering; Air suspension; Auxiliary chamber; Damping; Optimization
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0 引言
空气悬架因其独特的优点在车辆上得到越来越广泛的应用,其性能主要取决于悬架参
数,而传统被动悬架的刚度与阻尼设计时一旦选定便无法更改。汽车在使用过程中,载荷、
车速以及路况等行驶状态会有较大变化,被动悬架难以适应复杂多变的行驶工况[1] ,因而
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半主动悬架的研究日益受