运载火箭伺服系统控制特性参数化仿真方法

Parametric simulation for control characteristics of servo systems for launch vehicles

针对运载火箭伺服系统快速优化设计及精确化仿真需求,采用Matlab软件开发了参数化通用仿真平台。搭建了电液、电静压和机电三型伺服系统基础模型库,通过模型创建和参数配置模块快速生成伺服系统控制特性仿真模型。利用参数设计与分析模块快速开展伺服系统控制特性仿真分析,采用参数影响分析模块快速获得最优设计。该参数化仿真方法实现了仿真模型和仿真流程规范化,显著提高了伺服系统控制特性仿真分析的效率和准确性。仿真分析结果与试验一致性好,具有很好的工程应用前景。

This paper is aimed at the rapidly optimal design and precise simulation requirements of servo systems for launch vehicles,and develops a generically parametric simulation platform using Matlab software.The basic model libraries of electro-hydraulic actuators,electro-hydrostatic actuators and electro-mechanical actuators are established so as to generate a simulation model of control characteristics of the servo systems quickly according to model creation and parameter configuration modules.Through the parameter design and analysis modules,the simulation analysis of the control characteristics of the servo systems is quickly carried out,and the parameter influence analysis module is used to quickly obtain the optimal design.The parametric simulation method realizes the standardization of the simulation model and simulation process,and significantly improves the efficiency and accuracy of the simulation analysis of the control characteristics of the servo systems.The engineering practice shows that the simulation analysis results are in good agreement with the test results,and thus it has an excellent prospect of engineering application.