基于Sobol'法的动车组车体弹性异常振动全局灵敏度分析与优化OA北大核心CSTPCD
Global sensitivity analysis and optimization of abnormal elastic vibration of EMU car body based on Sobol'method
为治理动车组车体弹性异常振动问题,首先,结合车辆系统工作变形测试分析、车体模态测试分析和车辆刚柔耦合动力学模型仿真分析探究车体异常振动成因;随后,以转向架蛇行最小阻尼比为目标函数,基于Sobol'全局灵敏度分析方法分析关键参数全局灵敏度,依据各参数总灵敏和一阶主灵敏度筛选影响转向架蛇行稳定性的重要参数,并基于车辆系统刚柔耦合动力学模型对筛选出的参数进行优化;最后,对优化前后车体的弹性振动进行对比验证.研究结果表明:转向架的蛇行频率接近车体菱形模态…查看全部>>
In order to deal with the problem of abnormal elastic vibration of the EMU car body,firstly,the causes of abnormal vibration of the car body were explored by combining the operational deflection shape test analysis of the vehicle system,the modal test analysis of the car body and the rigid-flexible coupling dynamic model simulation analysis.Then,taking the minimum damping ratio of the bogie's hunting mode as the objective function,the global sensitivity of k…查看全部>>
刘广宇;宫岛;周劲松;任利惠;王泽根;邓新;周凯;尤泰文
同济大学铁道与城市轨道交通研究院,上海,201804同济大学铁道与城市轨道交通研究院,上海,201804同济大学铁道与城市轨道交通研究院,上海,201804同济大学铁道与城市轨道交通研究院,上海,201804同济大学铁道与城市轨道交通研究院,上海,201804同济大学铁道与城市轨道交通研究院,上海,201804同济大学铁道与城市轨道交通研究院,上海,201804兰州交通大学机电工程学院,甘肃兰州,730070
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动车组车体异常振动Sobol'法全局灵敏度分析参数优化
EMUcar body abnormal vibrationSobol'methodglobal sensitivity analysisparameter optimization
《中南大学学报（自然科学版）》 2024 (5)
1940-1952,13
国家自然科学基金面上资助项目(52375115)国家自然科学基金资助项目(51805373)上海市自然科学基金资助项目(23ZR1468900)中央高校基本科研业务费专项资金资助项目(22120240338,22120220558)甘肃省科技计划项目(23JRRA911)(Project(52375115)supported by the General Program of National Natural Science Foundation of ChinaProject(51805373)supported by the National Natural Science Foundation of ChinaProject(23ZR1468900)supported by the Natural Science Foundation of ShanghaiProjects(22120240338,22120220558)supported by the Fundamental Research Funds for the Central UniversitiesProject(23JRRA911)supported by the Science and Technology Projects of Gansu Province)
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