盒式六分量应变天平热态试验气动结构特性

发布时间：2018-07-06 08:08

  本文选题：热应力 + 盒式六分量应变天平　； 参考：《航空动力学报》2014年09期

【摘要】：为了探索盒式六分量应变天平热态试验时三维力传感器输出信号异常的现象,从四分量机械单台式天平与盒式六分量应变天平的气动布局、主体结构及热态试验方面展开了对比分析,受结构及安装制约,盒式六分量应变天平无法消除或补偿高温热流在稳定段上产生的热应力.为保留喷管模型试验器最具特色的高温试验功能,利用对称布置方案,调换燃油加温器至稳定段出口.热态试验证明:在增强天平的平衡性、减少天平机械连接、简化燃油加温器安装和调试的情况下,天平的推力测量值从异常的负值恢复正常,解决天平输出信号异常问题,满足天平热态试验性能要求.
[Abstract]:In order to explore the abnormal phenomenon of output signal of three dimensional force sensor in hot state test of box-type six-component strain balance, the aerodynamic layout of four-component mechanical single table balance and box-type six-component strain balance was studied. The main structure and thermal test are compared and analyzed. Due to the structure and installation constraints, the box-type six-component strain balance can not eliminate or compensate the thermal stress generated by the high temperature heat flux in the stable section. In order to retain the most characteristic high temperature test function of the nozzle model tester, a symmetrical arrangement was used to replace the fuel heater to the outlet of the stable section. The hot state test proves that under the condition of enhancing balance of balance, reducing mechanical connection of balance, simplifying installation and debugging of fuel heater, the thrust measurement value of balance returns to normal from abnormal negative value, and the abnormal output signal of balance is solved. Meet the balance hot state test performance requirements.
【作者单位】： 中国航空工业集团公司中国燃气涡轮研究院航空发动机高空模拟航空科技重点实验室;
【分类号】：TH715.11

【相似文献】

中国期刊全文数据库 前3条

1 史道兴;;高温玻璃板式液面计的热态试验[J];石油化工自动化;1989年01期

2 赵洪发;;汽车试验技术与试验检测仪器(Ⅴ)[J];试验技术与试验机;1990年05期

3 吴学安,蒋智翔;高温高压水下电测应变技术探讨[J];锅炉技术;1996年10期

，

本文编号：2102101