计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2015年
3期
31-34,108
,共5页
操纵稳定性%多领域建模%Modelica语言%实时仿真
操縱穩定性%多領域建模%Modelica語言%實時倣真
조종은정성%다영역건모%Modelica어언%실시방진
handling stability%multi-domain modeling%Modelica modeling%real-time simulation
针对传统汽车操纵稳定性设计中缺少经验导致参数匹配不合理、数字仿真分析模型建立过程复杂、数字仿真模型与实时仿真验证模型不一致等问题,在汽车操纵稳定性原理分析基础上,建立了基于刚体力学理论的三自由度操纵稳定性数学模型;采用Modelica语言的陈述式建模方法建立了其数字仿真模型,简化了建模过程;通过Simu-link中Modelica模型导入接口,建立了其实时仿真模型,实现了数字仿真模型直接转换为实时仿真模型,为操纵稳定性实时仿真验证提供了技术支持,并以某型号车辆操纵稳定性分析为对象,对该方法进行了应用验证。
針對傳統汽車操縱穩定性設計中缺少經驗導緻參數匹配不閤理、數字倣真分析模型建立過程複雜、數字倣真模型與實時倣真驗證模型不一緻等問題,在汽車操縱穩定性原理分析基礎上,建立瞭基于剛體力學理論的三自由度操縱穩定性數學模型;採用Modelica語言的陳述式建模方法建立瞭其數字倣真模型,簡化瞭建模過程;通過Simu-link中Modelica模型導入接口,建立瞭其實時倣真模型,實現瞭數字倣真模型直接轉換為實時倣真模型,為操縱穩定性實時倣真驗證提供瞭技術支持,併以某型號車輛操縱穩定性分析為對象,對該方法進行瞭應用驗證。
침대전통기차조종은정성설계중결소경험도치삼수필배불합리、수자방진분석모형건립과정복잡、수자방진모형여실시방진험증모형불일치등문제,재기차조종은정성원리분석기출상,건립료기우강체역학이론적삼자유도조종은정성수학모형;채용Modelica어언적진술식건모방법건립료기수자방진모형,간화료건모과정;통과Simu-link중Modelica모형도입접구,건립료기실시방진모형,실현료수자방진모형직접전환위실시방진모형,위조종은정성실시방진험증제공료기술지지,병이모형호차량조종은정성분석위대상,대해방법진행료응용험증。
To solve the problems that the lack of experience and unreasonable parameters matching, the complexity of modeling and analyzing, and the difference between the off-line simulation model and the real-time simulation model in the traditional vehicle handling design, this paper analyses the stability of vehicle handling and its evaluation method. The 3-DOF vehicle handling mathematical model is presented using the mechanics theory of rigid body. And it is easy to build the 3-DOF model by the declarative equation method of Modleica. And the real-time combination simulation model is built by the S-function of Modelica and Matlab/Simulink. The method can transform the Modelica model to the Simulink model. A certain type of car is used as the object of study to test and verify the modeling method.