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装载机的前车架是整机强度、刚度设计的关键部件之一,其结构复杂,承载最大,其产品的计算机辅助工程分析和优化设计是装载机数字化设计与制造的重要内容。产品数字化设计与制造主要包括数字化造型技术和计算机仿真技术,往往借助于各类软件来完成。Pro/E是美国PTC公司推出的一整套CAD/CAM/CAE集成解决方案,它包括Pro/E软件包和Pro/Mechanica模块,二者可以实现无缝集成。设计者首先使用Pro/E完成前车架的三维建模,构建其虚拟样机,为工程分析提供数据支持。针对装载机工况,定义约束、施加载荷从而分析前车架的受力情况和应力应变,并得到各种分析结果;根据工程分析结果,通过定义目标函数、设计变量和约束条件,完成装载机前车架的优化设计。
The front frame of the loader is one of the key components in the strength and stiffness design of the complete machine. Its structure is complex and carries the maximum. The computer aided engineering analysis and optimized design of its products are the important contents of the digital design and manufacture of the loader. Digital product design and manufacturing, including digital modeling technology and computer simulation technology, often with the help of various types of software to complete. Pro / E is a complete CAD / CAM / CAE integrated solution from PTC company in the United States. It includes Pro / E software package and Pro / Mechanica module, which can be seamlessly integrated. The designer first used Pro / E to complete the 3D modeling of the front frame, built its virtual prototype, and provided data support for engineering analysis. According to the condition of the loader, the constraints are defined and the loads are applied to analyze the stress and strain of the front frame. Various analysis results are obtained. According to the project analysis results, by defining the objective function, design variables and constraints, Front frame of the optimal design.