排序方式: 共有9条查询结果,搜索用时 328 毫秒
1
1.
2.
3.
4.
5.
针对当前基于MATLAB/SIMULINK的半物理仿真(Hardware in Loop Simulation,HILS)系统中不支持多领域建模、联合仿真模型转换过程复杂且存在误差等问题,提出基于Modelica和建模仿真软件MWorks进行HILS的方法,分析其所涉及的建模方法、实时仿真接口和代码生成等关键技术,并以此为基础构建支持Modelica模型的HILS.以前起落架转向系统和起落架收放系统为应用实例,建立HILS平台,对该方法进行验证.仿真结果表明该方法可行,结果可信度高. 相似文献
6.
针对多领域模型中的优化问题,提出了确定敏感参数及其取值区间的3种方法:参数扰动、参数扫动和蒙特卡洛分析法。其中:参数扰动可方便比较两个不同的参量值对输出变量的影响;参数扫动可同时观察输出变量的系列时序曲线;蒙特卡洛方法则可用随机函数生成参数的变动序列,如均匀分布、正态分布等模拟工程领域问题。本文以Modelica中的一个多学科模型为例,通过Mworks平台系统阐述了这3种方法,分析了实践效果.结果曲线与实际经验相符,为建模分析人员寻找敏感参数、缩小寻优区间提供了有效手段。 相似文献
7.
于红 《机械工程与自动化》2011,(1)
介绍了支持多领域统一建模语言规范Modelica的仿真平台MWorks。使用Modelica语言在MWorks平台上建立了球杆平衡系统模型,并对控制系统的性能做了初步仿真分析。仿真结果表明,用MWorks平台进行球杆系统建模仿真具有建模简捷、仿真效果直观的特点,为进一步设计球杆系统物理样机提供了基础。 相似文献
8.
仿真模型库是一种具有知识产权的工业数据,其中涵盖丰富的与专业相关的知识与经验。如何有效保护模型库的知识产权,使模型库的细节不被人窥知,是所有模型库开发者关心的问题。本文研究了Modelica模型的文本表达和流存储方式,在流存储的基础上,提出了一种多视图控制的模型保护方案。通过在文本视图、组件视图等位置,控制显示或隐藏模型的细节。达到保护模型信息的要求。 相似文献
9.
For modeling and simulation of distillation process, there are lots of special purpose simulators along with their model libraries, such as Aspen Plus and HYSYS. However, the models in these tools lack of flexibility and are not open to the end-user. Models developed in one tool can not be conveniently used in others because of the barriers among these simulators. In order to solve those problems, a flexible and extensible distillation system model library is constructed in this study, based on the Modelica and Modelica-supported platform MWorks, by the object-oriented technology and level progressive modeling strategy. It supports the reuse of knowledge on different granularities: physical phenomenon, unit model and system model. It is also an interface-friendly, accurate, fast PC-based and easily reusable simulation tool, which enables end-user to customize and extend the framework to add new functionality or adapt the simulation behavior as required. It also allows new models to be composed programmatically or graphically to form more complex models by invoking the existing components. A conventional air distillation column model is built and calculated using the library, and the results agree well with that simulated in Aspen Plus. 相似文献
1