基于ANSYS的高空作业车整车结构分析及实验验证
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摘要
高空作业车是载人高空作业的专用车辆,安全性和可靠性要求高。为了准确计算某型号高空作业车整车结构强度和刚度,利用APDL语言,采用自底向上的建模方法建立了该车的参数化有限元模型,并选择了两种危险工况对整车结构进行分析。分析结果准确反映了整车结构在危险工况下的应力和变形分布规律,为高空作业车结构设计提供了依据。选取结构件的危险区域进行了应力测试,并将测试点的应力模拟值与实验实测值进行了对比,模拟误差在10%以内,验证了所开发整机模型计算的准确性。
The aerial work platform is a special type of vehicle used for aerial operating,which requires high safety and reliability. In order to accurately calculate the structural strength and stiffness of a certain type of aerial work platform,a parametric finite element model for the whole structure is established by using the APDL language; meanwhile,two dangerous working conditions are chose to analyze the vehicle structure. The analysis results accurately reflect the stress and deformation distribution law of the structure under dangerous working conditions,and provide the theoretical guidance for the structural design of aerial work platform. To validate the finite element analysis results,stress at dangerous area of the structural parts is measured and compared with the simulation results. The simulation error is within 10 %,which verifies the accuracy of the finite element analysis of the whole structure.
The aerial work platform is a special type of vehicle used for aerial operating,which requires high safety and reliability. In order to accurately calculate the structural strength and stiffness of a certain type of aerial work platform,a parametric finite element model for the whole structure is established by using the APDL language; meanwhile,two dangerous working conditions are chose to analyze the vehicle structure. The analysis results accurately reflect the stress and deformation distribution law of the structure under dangerous working conditions,and provide the theoretical guidance for the structural design of aerial work platform. To validate the finite element analysis results,stress at dangerous area of the structural parts is measured and compared with the simulation results. The simulation error is within 10 %,which verifies the accuracy of the finite element analysis of the whole structure.
引文
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