CAJ | 학술논문

贴模度是飞机钣金件检测中的常用指标。对于易变形的弱刚性钣金件，通常的数字化测量与分析方法只能得到自然状态下的贴膜度误差检测数值，不能满足实际要求。在数字化测量分析的基础上，对钣金件测量数据进行有限元仿真分析，在误差大的位置施加一定的载荷，模拟受力下的贴模度检测过程，不仅能计算钣金件局部发生弹性变形后各测量点的贴模度数值，而且能直观地观察到材料的变形以及每个测量点所需承受的应力。
첩모도시비궤판금건검측중적상용지표。대우역변형적약강성판금건，통상적수자화측량여분석방법지능득도자연상태하적첩막도오차검측수치，불능만족실제요구。재수자화측량분석적기출상，대판금건측량수거진행유한원방진분석，재오차대적위치시가일정적재하，모의수력하적첩모도검측과정，불부능계산판금건국부발생탄성변형후각측량점적첩모도수치，이차능직관지관찰도재료적변형이급매개측량점소수승수적응력。
The part-mould contact gap of aircraft sheet metal part is one of the common indicators for part in-spection .For the low rigidity sheet metal part with easy deformation , the usual digital measurement and analysis method can only get the part -mould contact gap under natural condition .That result does not meet the practical inspection requirements .Based on the analysis of digitized inspection , this paper takes the finite element simula-tion of measurement data , applies certain loads to those positions with large error , analyzes the inspection process of digital part-mould contact gap under loading .This method can not only get the contact gap value of each measurement point after elastic deformation , but also directly observe the deformation of materials as well as the stress of each point .