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首页> 外文期刊>International journal of mechanics and materials in design >Design and control of helicopter main reducer vibration isolation platform with magnetorheological dampers
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Design and control of helicopter main reducer vibration isolation platform with magnetorheological dampers

机译：用磁流变阻尼器的直升机主减速器隔离平台的设计与控制

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摘要

A magnetorheological vibration isolation platform (MRVIP) with cubic structure Stewart mechanism was designed and an effective semiactive control strategy was proposed based on its inverse kinematics characteristics for the helicopter to effectively reduce the vibration of the helicopter rotor transmitted from the main reducer to the fuselage. Firstly, the structural scheme of the helicopter main reducer MRVIP was proposed. Secondly, the MR damper was manufactured, and the dynamic model was established based on the mechanical test. Thirdly, according to the design requirements of the VIP, the overall structure of the MRVIP was designed. Fourthly, the dynamic simulation model of the MRVIP was established by using 3D drawing software and SimMechanics software. And the vibration characteristics of each direction were analyzed. Finally, a PID-Fuzzy semiactive controller was designed based on the characteristics of the MR damper to improve the performance of the MRVIP. The numerical analysis results showed that compared with the passive MRVIP and the MRVIP based on fuzzy control, the MRVIP with PID-Fuzzy control has the best vibration isolation performance and can effectively reduce the vibration of 6-DOF.
机译：设计了具有立方结构Stewart机理的磁流变隔离平台（MRVIP），基于其对直升机的逆运动学特性提出了有效的半导体控制策略，以有效地降低从主减速器传递到机身的直升机转子的振动。首先，提出了直升机主要减速器MRVIP的结构方案。其次，制造MR阻尼器，并且基于机械测试建立动态模型。第三，根据VIP的设计要求，设计了MRVIP的整体结构。第四，使用3D绘图软件和SimMechanics软件建立MRVIP的动态仿真模型。分析了每个方向的振动特性。最后，基于MR阻尼器的特性设计了PID模糊半导体控制器，以提高MRVIP的性能。数值分析结果表明，与基于模糊控制的无源MRVIP和MRVIP相比，具有PID模糊控制的MRVIP具有最佳的隔振性能，可以有效地降低6-DOF的振动。

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