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气动升力下磁浮车辆非线性响应研究
Authors
吴晗
曾晓辉
Publication date
9 June 2021
Publisher
Abstract
磁浮列车在高速运行时受到的气动升力包含定常分量和非定常波动量,而非定常气动升力在某种程度上可以视为周期扰动。建立考虑非线性电磁力的磁浮系统二级悬挂的模型,推导了控制方程。利用增量谐波平衡法求解非线性方程,对考虑定常气动升力和周期性非定常气动升力条件下的磁浮系统非线性响应特性进行分析。开展了线性和非线性模型对比、控制增益参数和气动力系数影响规律分析。结果表明,采用PD控制器时,周期扰动的气动力会使得车辆振动中心发生偏移,反馈控制参数对振动偏移具有较大影响
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Institute Of Mechanics,Chinese Academy of Sciences
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Last time updated on 11/12/2021