直升机旋翼磁流变阻尼器样件仿真和试验验证

Simulation and Test Verification of Helicopter Rotor Magneto‑rheological Damper

基于一种线圈内置剪切阀式磁流变阻尼器结构,设计了一种全尺寸旋翼磁流变阻尼器结构,并将结构参数与磁路参数进行关联,提出了一种基于活塞组件结构的磁路结构参数仿真优化方法。基于改进的Bingham模型,建立了该全尺寸旋翼磁流变阻尼器参数化阻尼功计算模型。研制了全尺寸旋翼磁流变阻尼器样件,开展了性能试验与试验验证技术研究,研究了结构参数、运动参数、电流参数对阻尼器性能的影响。将试验结果与仿真计算结果进行了对比,仿真计算模型与试验模型的符合性较好,研制的旋翼磁流变阻尼器样件性能稳定。

A full‑sized rotor magneto‑rheological damper structure is designed based on a kind of inlay coil shear valve structure,and an optimization method of the magnetic circuit structure parameters is proposed by correlating structural parameters with magnetic circuit parameters.Based on the improved Bingham model,the parameterized damper characteristic mathematical model of full‑sized rotor magneto‑rheological damper is established.By performance test and test verification on samples,impacts of structure parameter,motion parameter and current parameter on magneto‑rheological damper performance are studied.By comparing the damping performance curve of the stimulation model with the test curve,we find that the stimulated computation model is complained with the test model,and the performance of samples is stable,which proves that the simulation method has great practical value.