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基于中小型航天器对接过程可以考虑在对接杆部分实现缓冲的思想,改变对接杆构型,采用变形能力大的对接杆提高对接冲击的缓冲性能.通过Pro/ENGINEER与MSC Patran和MSC Dytran的配合使用,对普通圆柱直杆、弓形杆和球形杆等3种构型的对接杆进行建模,仿真分析其在正碰和斜碰情形下的缓冲性能,并通过改变碰撞初始相对速度讨论初始条件对缓冲性能的影响.具有较大变形能力的对接杆可以明显提高对接冲击的缓冲性能;变形能力越大的杆构型对初始相对条件改变的适应能力越强.
Considering the idea of cushioning the buttress part based on the docking process of small and medium-sized spacecraft, the buttressing bar configuration is changed and the buttressing bar with large deformability is used to improve the cushioning performance of the butt impact. Through the cooperation between Pro / ENGINEER and MSC Patran and MSC Dytran Using this method, the buttressing bars of three kinds of configurations, such as normal cylindrical straight rod, bowed rod and spherical rod, were modeled and their cushioning performance was simulated and analyzed under the conditions of normal collision and inclined collision. The initial conditions were discussed by changing the initial relative velocity of collision On the impact of the buffer performance.High deformation capacity of the butt joint can significantly improve the impact of the docking cushioning performance; deformation capacity of the rod configuration of the initial change in the relative conditions of the stronger ability to adapt.