单自由度人体-座椅模型舒适性的仿真研究.doc

文档介绍：
单自由度人体—座椅模型舒适性的仿真研
究
黄硕*
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(东风汽车有限公司商用车发动机厂,湖北十堰 442001)
摘要:汽车座椅是汽车中将乘员与车身联系在一起的重要部件,它直接关系到乘员乘坐舒适
性和安全性。为了提高汽车座椅的动态舒适性,对汽车座椅进行动力学仿真分析十分必要。
本文以轿车座椅为研究对象,用多体动力学软件 ADAMS 仿真振动过程。本文根据标准 QC/T
55—93 汽车座椅动态舒适性试验方法,利用 ADAMS 对座椅的简化模型和座椅单自由度模
型进行了不同激励下的仿真分析,得到系统时域和频域的响应结果。采用“乘坐舒适性指数
R”经验评价方法对座椅进行评价。改变单自由度座椅系统中弹簧的刚度和阻尼,对比结果,
得到了系统参数对座椅传递特性和动态舒适性的影响关系。
关键词:汽车座椅;动态舒适性;多体动力学;仿真分析;传递率;
中图分类号:U-
Simulation study on single degree of freedom body-seat
model
HUANG Shuo
(Comuercial Vehicle Engine Plant, Dongfeng Motor Co., Ltd., Shiyan, Hubei 442001)
Abstract: The car seat is an ponent which linked with the Passenger and the car body; it
is directly related to passenger’fort and safety. In order to improve the fort of car
seats, dynamics simulation analysis for the car seat is essential. In this paper, the research object is
sedan seat, use multi-body dynamics simulation software ADAMS Simulate the vibration process.
Based on the standard QC / T 55-93 car seat fort test methods. Using ADAMS software to
analyze a simplified model of the seat and the seat single degree of freedom model simulation under
different excitation, get the system time domain and frequency domain response of the results. Use the
"comfort index R" experience evaluation methods to evaluate the seat. Change the spring stiffness and
damping of SDOF seat system, compar