基于墩头轮廓钛合金铆接夹具的优化设计

摘要

Based on the theory of elastic-plasticity and the reverse engineering of a certain model,the riveted fixture is optimized by calculation and numerical simulation through ordinary riveting method.The results show the optimum design of this fixture can greatly increase the uniformity of interference after riveting,make residual stress distribution more reasonable even come to an important assessment tools for detecting the amount of interference after riverting,and provid an important reference value for the aircraft manufacturing process optimization and assembly efficiency improvement.%针对某型号机在弹塑性理论和逆向工程的基础上,采用普通铆接方式,通过计算和数值模拟对铆接的夹具进行优化设计.结果表明,此夹具的优化设计可使铆接后的干涉量均匀度大大提高,残余应力分布更合理且得出了铆接后干涉量检测的重要评估手段,为飞机制造过程中工艺的优化和装配效率的提高提供重要参考价值.