| 王宏宇,滕儒民,杨娟,任利有.基于衍生式设计的汽车起重机转台轻量化探析[J].,2021,61(1):46-51 |
| 基于衍生式设计的汽车起重机转台轻量化探析 |
| Lightweight analysis of turntable for truck crane based on generative design |
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| DOI：10.7511/dllgxb202101007 |
| 中文关键词:起重机转台衍生式设计轻量化侧载对称结构 |
| 英文关键词:crane turntablegenerative designlightweightside loadsymmetrical structure |
| 基金项目:国家自然科学基金资助项目(51475068). |
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| 摘要点击次数:301 |
| 全文下载次数:246 |
| 中文摘要: |
| 汽车起重机转台是连接臂架和底盘车架的核心部件，其刚度和强度直接影响到起重机的性能．为实现转台轻量化创新设计，对汽车起重机转台进行了衍生式设计．首先，建立某典型机型转台的有限元模型，并计算出转台在不同工况下的应力分布及变形．按照示例转台的荷载、材料、安全系数、安装铰点及装配限制等进行衍生式设计设置．通过重复反向设置侧载工况解决了在承受侧载下结构对称零件的衍生式设计问题，间接解决了传统转台设计侧向刚度不足的问题．对生成的转台模型进行有限元分析验证，衍生式设计的转台结构在满足各工况力学性能的同时，质量减轻12%，侧向变形减小55.6%，最大变形减小30.2%．结果表明，衍生式设计可以实现转台的轻量化创新设计，同时对现有的转台设计起到一定的指导及借鉴作用． |
| 英文摘要: |
| The truck crane turntable is the core component connecting the boom and the chassis frame, and its rigidity and strength directly affect the performance of the crane. In order to realize the lightweight and innovative design of the turntable, the generative design is made for the truck crane turntable. Firstly a finite element model of a typical turntable is established, then the stress distribution and deformation of the turntable under different working conditions are calculated. Generative design settings are made according to the load, material, safety factor, installation hinge point and assembly restrictions of the example turntable. The problem of generative design of structurally symmetrical parts under the side load is solved by repeatedly setting the side load in the reverse direction, and the problem of insufficient lateral rigidity of the traditional turntable design is indirectly solved. Finite element analysis and verification are performed on the generated turntable model. The generative design of the turntable structure reduces the mass by 12%, the lateral deformation by 55.6%, and the maximum deformation by 30.2% while meeting the mechanical properties of each working condition. The results show that the generative design can realize the lightweight and innovative design of the turntable, and at the same time play a guiding and reference role in the design of the existing turntable. |
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