栅格舵气动与操纵特性高速风洞试验技术研究

Test technique investigation for aerodynamics and controlling capability of a grid fin in high speed wind tunnel

为研究飞行器单独栅格舵全尺寸模型气动特性,考核、验证舵控系统操纵性能,在FL-24风洞(1.2m×1.2m)开展了专项试验技术研究。首次在国内高速风洞建立了全尺寸栅格舵高速风洞试验平台,主要内容包括:风洞大载荷侧壁支撑装置设计、高速风洞模型保护装置设计、高灵敏度气动测试天平研制、模型风载条件下变形测试系统设计以及动态气动力测量与数据处理方法等。该项试验技术实现了模型气动与舵控系统以及气动与结构一体化试验验证,为栅格舵尾翼布局飞行器相关专业设计及飞行试验提供了重要试验数据。

In order to investigate aerodynamics and controlling capability of a grid fin with controlling system, and examine the capability of the rudder controlling system, a special test technique was developed in FL-24（1.2m× 1.2m）wind tunnel. A test platform for a full scale grid fin model was founded for the first time in high speed wind tunnel, including wind tunnel heavier load supporting device design, model protect device design, high sensitive wind tunnel balance development, model distortion measuring under wind load, and dynamic aerodynamic force test and data processing, etc. The test technique implements aerodynamics, rudder controlling system and structure integrative validation successfully. This work provided important test data for correlative specialty design and aviation experimentation of aircraft with grid fin empennage.