部分柔顺翅翼机构及其动力学分析

提出将包含"固定-铰接"的柔顺片段的部分柔顺机构作为微扑翼飞行器的翅翼机构。在简要介绍刚性、含弹簧和部分柔顺三种翅翼机构的结构和特点之后,利用伪刚体法对部分柔顺翅翼机构进行了动态静力分析,并将结果与相同条件下刚性及含弹簧的翅翼机构进行了比较。研究表明部分柔顺和含弹簧的翅翼机构都能明显地减小刚性翅翼机构的运动副反力和平衡力矩的峰值,而在一周期内部分柔顺翅翼机构运动副反力和平衡力矩的平均值比含弹簧翅翼机构的平均值的要小。通过验证,这些结论在不同的曲柄转速下是相同的。

Partially Compliant Flapping Mechanism and Its Dynamics Analysis

A partially compliant mechanism,composed of a fixed-pinned segments is proposed to be as a flapping mechanism for a flapping-wing micro air vehicle.Three types of flapping mechanism,namely rigid flapping mechanism,rigid flapping mechanism with spring,and partially compliant flapping mechanism are introduced.Then,the dynamics analysis of the partially compliant flapping mechanism is carried out based on the pseudo rigid-body model method.The outcomes of the analysis are compared with those from analysis of rigid flapping mechanism and rigid flapping mechanism with spring.It is shows that the maximum value of joint reactions and instantaneous drive torque in a rigid flapping mechanism such as the rigid flapping mechanism with spring can be reduced in the partially compliant flapping mechanism,And also the mean values of joint reactions and instantaneous drive torque in partially compliant flapping mechanism are smaller than that in the rigid flapping mechanism with spring.It is verified that these conclusions are same if the angular velocity of the crank is varied.