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 The pseudo bond graph technique is used to build a nonlinear mathematical Model of a large scale marine boiler. This paper describes in particular the modeling philosophy, the costruction of constitutive laws for double bond Cfields in drum, risers, superheaters using several curve fitting methods, and the systematic formulation of system equations through the study of causality. Attention ia paid in adjusting the system parameters so that a reasonable steady state and a satisfactory dynamic behavior... The pseudo bond graph technique is used to build a nonlinear mathematical Model of a large scale marine boiler. This paper describes in particular the modeling philosophy, the costruction of constitutive laws for double bond Cfields in drum, risers, superheaters using several curve fitting methods, and the systematic formulation of system equations through the study of causality. Attention ia paid in adjusting the system parameters so that a reasonable steady state and a satisfactory dynamic behavior of the model are obtained. Results of the simulations are presented, comparfsons with those given by conventional modeling techniques are made.  The pseudo bond graph technique is used to build a nonlinear mathematical model of a large scale marine boiler.This paper describes in particular the modeling philoaophy.the costruction of constitutive laws fordouble bond Cfields in drum,risers,superheaters using several curve fitting methods,and the systematic formulation of system equations through thestudy of causality.Attention is paid in adjusting the system parametersso that a reasonable steady state and a satisfactory dynamic behavior ofthe mode... The pseudo bond graph technique is used to build a nonlinear mathematical model of a large scale marine boiler.This paper describes in particular the modeling philoaophy.the costruction of constitutive laws fordouble bond Cfields in drum,risers,superheaters using several curve fitting methods,and the systematic formulation of system equations through thestudy of causality.Attention is paid in adjusting the system parametersso that a reasonable steady state and a satisfactory dynamic behavior ofthe model are obtained.Results of the simulations are presented,comparlsons with those given by conventional modeling techniques are made.  Two typical marine dynamic systems are modellea using pseudo bond graph in this paper to show the usefulness of the technique, the difficulties encountered, and the ways and means by which more realistic models can be obtained. A large marine boiler and a four stroke marine diesel engine are taken as the objects of research for which the nonlinear mathematical models are formulated. Modelling philosophy is emphasized and simulation results which are valuable for the dynamic analysis of power system and... Two typical marine dynamic systems are modellea using pseudo bond graph in this paper to show the usefulness of the technique, the difficulties encountered, and the ways and means by which more realistic models can be obtained. A large marine boiler and a four stroke marine diesel engine are taken as the objects of research for which the nonlinear mathematical models are formulated. Modelling philosophy is emphasized and simulation results which are valuable for the dynamic analysis of power system and the design of control systems are discussed in some details.  本文主要介绍了作者应用键图法建立的一台大型船用锅炉和一台四冲程中速船用柴油机的非线性数学模型。文章着重分析了建模机理,并阐明了建模过程中存在的有关问题和解决这些问题的有效措施,最后还给出了对所述动力系统的动态分析和控制系统设计颇有价值的数字仿真结果。  Considering the particularity of pneumatic system, a new modeling method based on pneumatic dual channel pseudo bond graph is put forward. According to this method, a completed bond graph model of pneumatic driving system is presented. A CAD software, PneuCAD, which has five main functions including pneumatic circuit drawing, design for pneumatic power circuit, design for pneumatic control circuit, simulation and model selection, is also developed.  针对气压传动系统的特殊性 ,提出了气动双通道伪键合图方法 ,建立了气压传动系统的双通道伪键合图模型 ,开发了一套集气动原理图绘制 ,气压传动系统动力回路设计、控制回路设计、动态性能仿真和气动元件选型等五大功能于一体的软件包PneuCAD。   << 更多相关文摘 
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