基于增材制造的微纳卫星微推力器贮箱设计与测试

Design and Test of Micro-nano Satellite Micro Thuster Reservoir Based on AddiManufacturing

针对传统机械加工的微推力器存在体积大、消极质量高、比冲低、存在泄露风险等问题,通过增材制造技术对微推力器贮箱进行一体化设计制造,并开展了微推力器贮箱的性能测试。结果表明:通过增材制造方式进行贮箱的一体化设计制造,所得到的产品相比传统加工减重30%左右,体积更小且更加轻量化。经过承压测试检测贮箱能够承受0.7MPa压力,经真空泄漏率测试检测其泄露率低于设计指标,产品各参数符合标准,满足设计需求。

In view of the problems of large volume,high negative mass,low specific impulse and leakage risk of the traditional mechanical microthrust machines,this paper present a method to comprehensively design and manufacture the microthrust tank through additive manufacturing.And the performance test of the microthrust tank is carried out.The results show that the integrated design and manufacture of the storage box can reduce the weight by approximately 30%and reduce the volume.In the pressure test,the storage tank can withstand 0.7 MPa pressure.And in the vacuum leakage rate test,the leakage rate is lower than designed.All the parameters of the product meet the standard and meet the design requirements.