大型客机无尾布局航向组合舵面控制技术研究

Research on control technology of combined control surface for large tailless civil aircraft

针对无尾布局航向控制问题,提出了嵌入式阻力舵与襟副翼组合的航向组合式操纵舵面,结合300座级翼身融合布局大型客机设计方案进行了舵面设计和风洞试验研究。结果表明,单独嵌入式阻力舵在提供航向控制力矩的同时,耦合了更大的滚转力矩和侧力,需解耦消除;采用组合式舵面,不仅可提供更大的航向控制力矩,同时减缓甚至消除了耦合滚转和侧力。在某些舵面组合状态,有实现十分理想的纯航向操纵模式的可能。组合式舵面为解决无尾布局飞机的航向控制问题提供了一条崭新的技术途径,具有广阔的工程应用前景。

For the yaw control problem of the tailless aircraft, a combined control surface with embedded drag rudder and flaperon is designed and studied by wind tunnel test. This new type of yaw control surface was based on the 300 passengers blended-wing-body tailless civil aircraft. Result shows that, the drag rudder provides yaw control moment coupled with larger rolling moment and lateral force, which need to be decoupled. While the combined control surface can provide greater yaw moment coupled with less rolling moment and lateral force. In some conditions, pure yaw control mode can be realized. Drag rudder and flaperon combined yaw control mode provides a new technical way for the solution of yaw con- trol problems of tailless aircraft, and it can be widely used in engineering.