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预变形设计是减小民用飞机复合材料蒙皮变形的重要方法。变形前后各段曲线长度变化是衡量变形质量的关键指标。本文分析比较了曲线变形、曲面变形、偏移量变形三种变形方法的长度变化。偏移量方法变形前后长度变化最小。运用偏移量方法对复合材料蒙皮曲面进行预变形设计。变形后曲面满足预变形设计要求。
Pre-deformation design is to reduce the deformation of civil aircraft composite skin an important method. Changes in the length of the curve before and after deformation is a measure of the quality of the key indicators. This paper analyzes and compares the length variation of the three deformation methods of curve deformation, surface deformation and offset deformation. The offset method has the smallest change in length before and after deformation. Pre-deformation design of composite skin surface with offset method. Deformed surface to meet the pre-deformation design requirements.