8m×6m风洞特大迎角试验设备研制

The development of high angle of attack test equipment in the 8m×6m low speed wind tunnel

8m×6m风洞特大迎角试验设备是该风洞最新配套的多用途支撑系统，其主要用途包括3个方面：（1）支撑战斗机模型完成特大迎角状态测力、测压试验任务，迎角连续变化范围0°～120°，侧滑角变化范围达±300；（2）支撑大尺度模型（最大翼展达6m）完成常规测力、测压、地效试验任务，此时迎角连续变化范围-10°～30°，在特定条件下，迎角可扩展到70°以上；（3）支撑特殊模型进行特种试验，包括细长体模型、车辆模型、螺旋桨模型、动力模拟试验模型等。该设备主要特点有：模型支撑方式多样，可满足常规和大量特种模型支撑和姿态变化需要；系统刚性强，模型支撑牢固，变形小；机构运行灵活，模型姿态变化定位精确。

The high angle of attack test equipment is a new muh-purpose supporting system which can be used in three main purposes for the 8m × 6m low speed wind tunnel. First, it can be used to support fighter model for high angel of attack test, in which the angle of attack can be continuously changed from 0° to 120° and the angle of sideslip can be changed from - 30° to 30° Second, it can be used to support large-scale model with 6m wingspan for general test and ground effect test, and the angle of attack can be continuously changed from - 10° to 30°, even to higher than 70° in special condition. Third, it can be used to support special model such as slender configuration model, vehicle model, propeller model and power simulation test model for special tests. The high angle of attack test equipment can fulfil supporting and attitude varying requirement of general model and special model, with other characters such as high rigidity, low deflection, high security of model supporting, high agility and high precision.