CAJ | 학술논문

提出了一种带油针的磁流变减震器的结构与工作原理，并进行了结构设计和磁路优化设计，最后通过阻尼特性试验和落震试验研究了该减震器的阻尼特性和减震效果。结果表明：该减震器的阻尼特性良好，阻尼力调节范围大，耗能性能好。通过改变电流，可以改变不同落震高度时的减震器最大垂直载荷和活塞位移，改善了传统起落架减震器的减震效果，对起落架磁流变减震器的研究和应用具有指导意义。
제출료일충대유침적자류변감진기적결구여공작원리，병진행료결구설계화자로우화설계，최후통과조니특성시험화락진시험연구료해감진기적조니특성화감진효과。결과표명：해감진기적조니특성량호，조니력조절범위대，모능성능호。통과개변전류，가이개변불동락진고도시적감진기최대수직재하화활새위이，개선료전통기락가감진기적감진효과，대기락가자류변감진기적연구화응용구유지도의의。
In order to improve the performance of the shock absorber of aircraft landing gear and study the application of magnetorheological damping technology in the shock absorption structure of aircraft landing gear,the structure and the working principle of a kind of magnetorheological damper with oil needle is proposed and the structure is designed.The optimization of the mag-netic circuit is conducted and final y the damping force characteristic and damping effect have been studied through the vibration test and drop test.The results show that the damping charac-teristic of the shock absorber is good and it has relative large adjustment range for the damping force and good energy dissipation performance.It could change the maximum vertical shock load and the piston displacement of different heights by changing the current.