臂式高空作业平台变幅系统建模与模型降阶OA北大核心
Modeling and model reduction of the luffing system for boom-type aerial work platforms
以某臂式高空作业平台臂架变幅液压系统为研究对象,利用AMESim软件建立了该系统的液压仿真模型,并通过机液联合仿真的方式验证了模型的准确性.使用一种线性频域分析为主、活性能量指数分析为辅的方法,对液压模型进行简化降阶,将模型中固有频率较高且活性指数较低的子部件进行移除或修改,并对部分无法移除的高频模型进行参数调整,使该模型满足实时仿真的需要.实验表明:经降阶处理后得到的液压系统仿真模型,在保证较高还原度的前提下,不仅降低了运算时间还满足了实时仿真要求.
This study focuses on the boom luffing hydraulic system of boom-type aerial work platforms.A hydraulic simulation model is developed using AMESim software,and its accuracy is verified through mechanical-hydraulic co-simulation.To optimize the model for real-time simulation,a linear frequency domain analysis method,supplemented by active energy index analysis,is used to simplify and reduce the model's order.Components with higher natural frequencies and lower activity indices are either removed or modified,and parameters of certain high-frequency models that could not be removed are adjusted to achieve real-time simulation compatibility.The reduced-order hydraulic system model significantly reduces computational time while maintaining a high level of fidelity,meeting real-time simulation requirements effectively.
牛轲磊;贺尚红;杨庚;黄毅
长沙理工大学 汽车与机械工程学院,长沙 410114长沙理工大学 汽车与机械工程学院,长沙 410114湖南星邦智能装备股份有限公司,长沙 410600长沙理工大学 汽车与机械工程学院,长沙 410114
计算机与自动化
高空作业车臂架变幅液压系统AMESim实时仿真
aerial working armluffing hydraulic systemAMESimreal-time simulation
《重庆大学学报》 2025 (1)
33-44,12
国家自然科学基金资助项目(51875048)长沙市科技重大专项资助项目(kh2301017).Supported by National Natural Science Foundation of China(51875048),and the Major Science and Technology Special Project of Changsha(kh2301017).
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