基于离心机平台的加速度−温度综合环境试验系统设计

Design of an integrated acceleration-temperature environmental test system based on centrifuge platform

为在现有转臂式结构的离心机平台上拓展温度试验能力,文章提出一种加速度−温度综合环境试验系统的设计方法。针对温度箱内因离心过载和科氏加速度的影响而导致的温度场分布不均匀,采用调整温度箱热源位置和增加风轮风量等手段进行流场干预;通过对温度箱的结构强度仿真及试验验证该系统的工作性能。结果表明:该试验系统可进行加速度为0g~45g、常温~130℃的加速度−温度综合环境试验,监测温度偏差控制在±5℃范围内。以上研究可为加速度−温度综合环境试验系统的设计提供参考。

In order to expand the temperature test capability on the existing centrifuge platform with a swivel arm structure,an approach for designing an integrated acceleration-temperature environmental test system was proposed in this paper.In view of the uneven distribution of temperature field in the temperature chamber caused by the centrifugal overload and Coriolis acceleration,the flow field interference was carried out by adjusting the heat source position in the temperature chamber and increasing the airflow of wind turbine.The performance of the system was verified by the structural strength simulation and tests.The results demonstrate that the test system can conduct integrated environmental tests with acceleration of 0g to 45g and temperatures ranging from room temperature to 130℃,while maintaining the monitored temperature deviation within±5℃.The above research may provide a reference for the design of integrated acceleration-temperature environmental test systems.