摘要
根据液压吸能装置的工作原理和主要缓冲参数不同的脉冲值,应用流体力学及工程结构学理论建立液压吸能装置的数学模型,以相应的数值计算方法对数学模型进行仿真求解计算,通过不断迭代优化的计算方法以获取系统的动态响应,获得最优的波形精度。运用MATLAB优化工具箱求解阻尼孔参数优化问题,再运用实测数据与理论计算值进行对比分析,对阻尼孔参数与活塞杆头参数进行优化修正,保证冲击波形精度控制在3%以内,而国内同类产品的精度为10%~15%。
According to the hydraulic energy absorbing device the working principle and the main buffer parameters for different pulse value,applied fluid mechanics and engineering structure theory to establish the mathematical model of hydraulic energy absorbing device,with the corresponding numerical calculation method of the mathematical model and simulation,in order to constantly iteration method for calculating the dynamic corresponding acquisition system,and get the optimum waveform precision. The test data and theoretical calculation results were compared and analyzed,the damping hole parameters and piston rod head parameters were optimized to ensure accuracy of correction,impulse control in 3%,and the domestic products of similar accuracy for 10%-15%.
作者
陈爱军
刘军乐
CHEN Aijun LIU Junle(China Helicopter Research and Development Institute, Jingdezhen 333001, China)
出处
《直升机技术》
2017年第3期30-33,共4页
Helicopter Technique
