论文部分内容阅读
风洞天平测量精度是改善模型风洞试验测量精度的主要因素 ,我国进行了大量研究。本文做了三个方面的工作 :( 1 )设计低干扰的天平阻力元 ;( 2 )选择带温度补偿的高质量的应变计 ;( 3 )选择优质应变片并仔细粘贴。将这些科研成果应用于一台 1 8六分量应变天平上 ,并利用该天平在超音速风洞中对 GB-0 4标模进行气动力测量 ,其测量精度达到国际标准
Wind tunnel balance measurement accuracy is to improve the model wind tunnel test measurement accuracy of the main factors, a lot of research in our country. This article has done three aspects of work: (1) the design of low interference balance resistance element; (2) choose a high quality strain gauge with temperature compensation; (3) select the high quality strain gauge and carefully paste. Applying these scientific achievements to a 18-component strain gauge and using this balance to measure the aerodynamic force of the GB-0 4 standard in a supersonic wind tunnel, the measurement accuracy reaches the international standard