Wind tunnel test device and method for rotation aerodynamic characteristics of object hung on helicopter

• Main Authors: LEI HONGSHENG, PENG XIANMIN, HUANG ZHIYUAN, ZHANG GUICHUAN, CHE BINGHUI, DENG HAOXUAN, SHI ZHEYU
• Format: Patent
• Language: Chinese; English
• Published: 26.09.2023
• Subjects: AIRCRAFT; AVIATION; COSMONAUTICS; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING ORREPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLYADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFTCOMPONENTS, NOT OTHERWISE PROVIDED FOR; MEASURING; PERFORMING OPERATIONS; PHYSICS; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; TRANSPORTING

The invention discloses a wind tunnel test device and method for rotation aerodynamic characteristics of a helicopter suspended object, a rotation test bench is adopted to simulate the rotation motion of the suspended object, the rotation speed of the suspended object is controlled through a computer, a data acquisition module supplies power to a balance and an encoder, and only an external battery needs to supply power to the data acquisition module. The device is high in integration level and convenient to use, wireless data transmission is adopted, synchronous acquisition of balance rotation signals and rotation phases is achieved, and the device has great significance in analyzing aerodynamic characteristics of a suspended object under different windward phases. 本发明公开了一种直升机吊挂物旋转气动特性风洞试验装置及方法，采用旋转试验台模拟吊挂物旋转运动，通过计算机控制实现吊挂物转速控制，天平和编码器由数据采集模块供电，只需通过外部电池对数据采集模块供电即可，装置集成度高，使用便捷，采用无线数据传输，实现了天平旋转信号和旋转相位的同步采集，对分析吊挂物在不同迎风相位下的气动特性，具有重要意义。