CG-01风洞直接阻尼导数试验技术

Technique of Direct Damping Derivative Measurement in CG-01 Wind-tunnel

为确定飞机和导弹设计与气动分析时最常用的直接阻尼导数,CG-01风洞试验室建立了强迫振动法测量直接阻尼导数的试验技术。文中描述了强迫振动法的试验原理和数据处理方法,介绍了CG-01风洞设备和数据采集系统,给出了飞机SDM模型的试验结果;试验表明CG-01风洞直接阻尼导数试验系统运行稳定可靠,试验结果理想,可满足弹箭兵器和常规飞行器型号研制时的试验需求。

To determine direct damping derivatives during aircraft and guided missile design and analysis, a new technique for measuring these derivatives by forced-oscillation method has been established in CG-O1 wind-tunnel. The forced-oscillation theory and data-processing method were described;the equipment and data acquisition system were introduced. The standard dynamics model test of aircraft indicates that the direct damping derivative system in CG-O1 wind-tunnel runs stably and credibly, and the results meet the test requests of aircraft and guided missile design.