展开锁定对太阳电池阵驱动机构的冲击载荷分析与测量

摘要

The solar array has to be locked in a specified position after deployment. The locking process produces a large shock on the SADA of the satellite. Accurate related results are difficult to be obtained from the commercial software simulations. This paper proposes a measurement method by connecting a measuring tool between the satellite body and the root hinge of the solar array. The strain data can be measured from the tool and the shock load can be calculated indirectly. The method is validated in the satellite development.%太阳电池阵在空间会以较大的速度展开到位并锁定，这会给太阳电池阵的对日定向驱动机构（SADA）带来一定的冲击载荷，而仅依靠软件仿真很难得到准确可靠的冲击载荷数据。文章提出在卫星星体与太阳电池阵根部铰链之间串接一个测量工装，通过测量工装产生的应变可间接获得冲击载荷。该技术措施已在型号研制中得到应用，为驱动机构承载能力的设计分析和考核提供了依据。