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半转翼是一种以转动式拍动替代摆动式拍动的新型类扑翼系统,针对传统半转机构传动复杂、重量大不适合飞行的缺点,提出一种采用局部约束的简约化半转机构作为半转翼驱动机构。给出了局部约束的形成过程和作用特点,根据运动构件间的接触状态将局部约束作用过程分成4个阶段,分别建立了不同阶段下的驱动机构半转杆转角偏差理论分析模型。在以上模型基础上,对驱动机构关键构件的结构进行优化设计。实例验证了半转杆转角偏差理论模型具有较好的可靠性,优化结果降低了转角偏差从而提高了驱动机构运行的平稳性。以上研究结果表明局部约束及其在简约化半转机构中的应用可为半转翼驱动机构设计提供新途径、新方法。
The semi-rotor is a new type of flapping-wing system that replaces oscillating flapping with rotating flapping. Aiming at the shortcomings of traditional semi-rotating mechanism with complicated transmission and heavy weight, the paper proposes a simplified semi-rotary Mechanism as a semi-rotating wing drive mechanism. According to the contact state between moving parts, the process of local restraint is divided into four stages, and the theoretical analysis models of the half-rotating bar angle deviation of the driving mechanism at different stages are established respectively. On the basis of the above model, the structure of the key components of the drive mechanism is optimized. The example proves that the theoretical model of the half-turn angle deviation has good reliability, and the optimized result reduces the angle deviation so as to improve the stability of the driving mechanism. The above results show that the local constraints and its application in the simplified half-turn mechanism can provide new ways and new methods for the design of the half-rotor drive mechanism.