Large aircraft components are generally assembled by multi-material and multi-size components according to a certain process.The temperature change in the large-size assembly space will cause large and inconsistent thermal deformation of components during assembly,which will further affect the assembly coordination accuracy of aircraft products.Based on the requirement of high-precision assembly of large-scale composite components of aircraft in a million cubic meters of global working space,the influence of temperature change on the thermal deformation of tooling and products in different material combinations was studied.Taking the as-sembly of a typical composite wing box component of a 5-meter class aircraft as the analysis object,the results show that when the tem-perature changes by 5℃,the assembly coordination accuracy will be affected by about 0.1～0.2 mm.Therefore,in the process of assembly process design,it is necessary to consider the compensation problem of thermal deformation error of product assembly caused by temperature change of 5 ℃,which is of great significance to improve the coordination accuracy of aircraft assembly.
关键词
飞机装配协调/复材构件热变形/厂房温度变化/热变形仿真
Key words
aircraft assembly coordination/thermal deformation of composite components/temperature change of factory building/thermal deformation simulation
维普
万方数据