基于磁流变液的飞机起落架嵌入式缓冲控制器设计

Aircraft Landing Gear Embedded Buffer Controller Design Based on Magneto-rheological Fluid

基于飞机着陆和滑行过程中,飞机起落架中磁流变阻尼器的阻尼力的不可控的问题。提出基于磁流变液的飞机起落架嵌入式缓冲控制器设计方法,设计了针对控制磁流变阻尼器阻尼力的缓冲控制系统,主要包括嵌入式数字信号处理器DSP的选择,控制系统的原理设计,电源产生电路和复位电路模块,JTAG仿真电路模块,A/D采样校正模块,D/A转换模块,压控电流源驱动模块。通过电路模块的仿真,由控制系统中压控电流源出来的电流在阻尼器接受范围之内,证明了设计的磁流变缓冲控制器能对阻尼力的大小进行控制,对飞机起落架的缓冲系统起到调节作用。

Based on problem that the magneto rheological damper damping force of aircraft landing gear is not controllable in the process of aircraft landing and taxiing. A method of embedded buffer controller of aircraft landing gear based on magneto rheological fluid is presented and buffer control system is designed to control the magneto rheological damper damping force,which mainly includes the selection of embedded digital signal processor （DSP） and the principle design of control system,power generation and reset circuit modules,JTAG emulation circuit module, A/D sampling correction module, D/A converter module,voltage controlled current source driver module. Through the simulation of circuit module,the current in the magneto rheologieal buffer controller is accepted by the control system, the magneto rheological buffer controller designed can control damping force and play a regulatory role in the aircraft landing gear.