增压柴油机推进系统仿真研究

首先建立了增压柴油机一系列平衡点的综合函数,它综合有关部件的静态特性,经过离线的迭代运算,事先求得;然后建立发动机本体、涡轮增压器、调速器及船桨运动微分方程;在Matlab Simulink下建立增压柴油机准稳态非线性仿真模型,研究静态平衡条件受到破坏时,具有代表意义参数的动态过程.仿真结果表明,准稳态非线性的建模方法符合大扰动下仿真的实时性和精度.

Simulation study on propulsion system of supercharged diesel engine

A series steady integration functions of supercharged diesel engine was obtained by off-line calculation;then the differential equations of engine, turbine supercharger, regulator, ship and propeller was established;Simulation model of quasi-steady state supercharged diesel engine propulsion system was established and simulated under Matlab Simulink, the dynamic process with representative parameters was studied when static balance condition was destroyed. The simulation result shows the simulation model was conformed to reality and precision.