实验流体力学2017，Vol.31Issue(6)：100-104,5.DOI:10.11729/syltlx20160114
基于3D打印的风洞应变天平防护装置设计与应用
Design and application of wind tunnel strain gauge balance protective device based on 3D printing
向光伟 1王超 1万利强 1米鹏 1王树民1
作者信息
- 1. 中国空气动力研究与发展中心,四川绵阳 621000
- 折叠
摘要
Abstract
The strain gauge balance is the main equipment used in wind tunnel test, which has an important influence on the quality of test data and operational efficiency. To improve the balance self-protection performance and lower balance failure rate in test operations, a quick development method based on three-dimensional (3D) printing for the wind tunnel strain gauge balance (SGB) protective device is proposed. By decomposing the design factors, the key factors pertaining to the design of balance protective device are studied. A design flow and method based on 3D printing is put forward. The 3D printing technology can be applied to the optimization of balance guards in two aspects: (1) to optimize and visualize design schemes; (2) to protect strain gauges and circuit on balances for wind tunnel tests. Both water-cooled balance protective device and assembly type mechanical protective device are designed. For the water-cooled device with complex internal structure, 3D printing technology makes design to be visualized, which is helpful for design verification before manufacturing. The assembly type product, manufactured by means of 3D printing technology, is applied in corresponding balance protection for wind tunnel force measurement test. The perfect combination of strain gauge balances with their highly customized, lightweight balance protective devices by 3D printing, serves not only to protect the strain gauges and wires from damages in the process of calibration, transportation, model assembly and testing, but also to make impressive visual artworks of the balances, rendering them functional, practical, economical and artistic. Compared with machining of a balance protective device in the traditional way, 3D printing can greatly reduce the processing cycle and the cost. Meanwhile design visualization can validate technical solutions in the design stage. Both applications promote the overall performance of the balance.关键词
3D打印/应变天平/天平防护/设计验证/设计因素Key words
3D printing/strain gauge balance/balance protection/design verification/design factors分类
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向光伟,王超,万利强,米鹏,王树民..基于3D打印的风洞应变天平防护装置设计与应用[J].实验流体力学,2017,31(6):100-104,5.
