航天管路系统波纹补偿器的设计及试验研究

Design and Test Research of Aerospace Pipeline Corrugated Compensator

航天管路系统中需要应用波纹补偿器进行软连接,波纹补偿器承受着温度、压力及位移补偿等载荷,需要对补偿器的设计及试验方法进行深入研究。文中对航天管路系统用DN30波纹补偿器进行工程设计和数值模拟分析,研究它的极限承压能力和疲劳寿命,并将结果同试验数据对比,以验证其设计精度。结果表明,有限元法的计算精度优于工程设计方法。在产品设计过程中,把有限元仿真分析、工程设计和试验有机结合在一起,能够显著提高设计精度和产品可靠性。

Aerospace pipeline system applications require the application of corrugated compensator to proceed flexible con- nection, and corrugated compensators bear the condition of temperature, pressure and displacement compensation. The design and test method of the corrugated compensator is to be deeply researched. In this paper, the engineering design and numerical simulation analysis were carried out with DN30 corrugated compensator of the space pipeline system, and the ultimate bearing ca- pacity and fatigue life were also researched. The results were compared with experimental data to verify the accuracy of the de- signs. The results show that the calculation precision is better than that of the engineering design method. In the product design process, the finite element simulation, engineering design and test were combined, thus significantly improving the design accuracy and reliability.