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某轿车铝合金仪表板横梁分析及优化
Analysis and optimization of Aluminum Alloy Cross Car Beam of a Car
2023-03-02 11:06
王月 周建丰 (Wang Yue Zhou Jianfeng)
轻质材料仪表板横梁取代钢制仪表板横梁已成为一种必然趋势，鉴于铝合金在冲压件和挤压件上的材料优势，使得铝合金仪表板横梁应用更加广泛。以某轿车铝合金仪表板横梁为研究对象，并和上一代车型的钢制仪表板横梁在质量、模态及刚度性能方面进行对比分析。结果表明，铝合金仪表板横梁在不影响模态及刚度性能的前提下，轻量化率高达40%。除此之外，对其进行了振动强度性能分析，并对性能不足处进行结构优化，最终顺利通过路试耐久测试。在此过程中，首次提出把仪表主体的质量附加在仪表板蒙皮上，其余附件简化为质量点并按照实际安装位置加载在质心处的分析方法。
It has become an inevitable trend that light material cross car beam replace steel cross car beam, In view of the aluminum alloy in stamping parts and extruded parts on the material advantage, Make the aluminum alloy cross car beam more widely used. The aluminum alloy cross car beam of a car is taken as the research object, And compared with the steel cross car beam of the previous generation model in terms of quality、modal and stiffness performance . The results show that, Aluminum alloy cross car beam in the premise of not affecting the modal and stiffness performance , Lightweight rate up to 40%. In addition to , The performance of vibration strength is analyzed , And the structure optimization is carried out for the performance deficiency , Finally, it successfully passed the durability test of road test . In the process , For the first time, the quality of the cross car body is attached to the skin of the cross car panel , The remaining accessories are simplified as mass points and loaded at the center of mass according to the actual installation position.
来源：数字仿真论坛
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