基于AMESim的船用液压阻尼器结构优化与仿真

利用孔口流动原理建立船用液压阻尼器的数学模型，根据模型的优化目标函数对控制阀结构进行优化设计，提高了阻尼器控制阀的闭锁响应效果；采用AMESim软件建立阻尼器及试验台的仿真模型，将优化设计与常规设计的仿真结果作对比，验证了优化设计的正确性；对优化设计结果进行实物样机试验，通过试验结果与仿真结果的对比，进一步证明了优化设计的有效性，同时分析了二者的差异及造成这些差异的原因。将结构优化设计方法、模型仿真、实物样机试验相结合，设计出满足船用要求的液压阻尼器。

Structure Optimization and Simulation Based on AMESim for Hydraulic Damper

A large hydraulic damper used on ship is designed. We build a mathematical model of hydraulic damper according to the orifice flow calculation theory. In order to improve dynamic response effect, the structure of control valve is optimized based on optimization objective functions. We establish models of the hydraulic damper and its test bed using the software AMESim. By comparing the simulation results of optimized design and the results of conventional design, we find the structure optimization is feasible. We do a prototype test and compare the test results with the simulation results, and the result further proves that the optimized design is effective. At the same time, we analyze the factors which make the differences between test and simulation and the reasons for the differences. The conclusion is that the combination of structure optimization design and model simulation together with prototype test is effective to obtain a shipping hydraulic damper.