变弯度机翼前缘结构抗鸟撞仿真与试验验证

Simulation and experimental verification of anti-bird impact performance of a variable-bend wing leading edge structure

与常规机翼不同,变弯度机翼抗鸟撞装置在设计时需要考虑变弯度机翼的机构运动路线,在保证不影响机翼机构正常功能的前提下进行设计,因此也大大增加了抗鸟撞装置设计的难点。通过试验与仿真相结合的方法,对不同构型楔形结构的抗鸟撞性能进行研究,得到了最合理、有效的抗鸟撞结构;根据鸟撞仿真分析结果,结合机翼机构运动路线,确定了抗鸟撞装置的设计思路,同时设计并制造了三角加弧形结构抗鸟撞装置,并对其进行了试验验证与仿真分析。结果表明,三角加弧形结构能有效预防变弯度机翼在受到鸟撞后发生破坏,为变弯度机翼抗鸟撞结构的设计提供参考。

Different from conventional wings,the bird strike device of the variable camber wing needs to consider the movement route of the variable camber wing during the design,so as to ensure that the normal function of the wing mechanism is not affected.Therefore,it also greatly increases the difficulty of the design of the bird strike device.In this paper,the bird-strike resistance performance of wedge-shaped structures of different configurations was studied through the method of combining experiment and simulation,and the most reasonable and effective anti-bird strike structure was obtained.According to the results of bird strike simulation,combined with the movement route of the wing mechanism,the design idea of the bird strike device was determined.The triangle and arc anti bird strike device was designed and manufactured,and the experimental verification and simulation analysis were carried out.Results show that the triangle and arc structure can effectively prevent the variable camber wing from being damaged after by bird,which provides a reference for the design of the anti-bird strike structure of the wing.