基于CAD系统的建模分析工具

Thermal Desktop基于AutoCAD软件环境,用户可以直接使用已有几何或FEM模型,也可以这些模型为参考,通过自动抓取关键点,快速生成Thermal Desktop的有限元、曲面和实体,完成热流模型设计和前后处理工作。

 

 

Thermal Desktop集成了TRASYS类型的有限差分参数曲面和AutoCAD 类型的有限元体模拟传热问题,因此软件能发挥两者的特长,满足复杂换热问题对模拟过程的不同需求。Thermal Desktop所具有的直观图形界面和易用特征减轻了建模者的负担,而其生成的SINDA/FLUINT格式的热容-热导网络模型,在建模者的调整和配置下,可完成复杂系统的优化设计、实验数据自动修正、可靠度分析等工作,为工程师和决策部门提供科学、定量的决策依据。

Thermal Desktop运行在AutoCAD软件中。Thermal Desktop 软件包括以下两个模块:

  • RadCAD:高温或真空环境下的热辐射分析软件;
  • FloCAD:流体回路模拟、物体表面的强迫和自然对流换热分析软件;

         

Thermal Desktop 功能及特点

  • Thermophysical property database热物理性能库;
  • Constant and temperature dependent capacitance and conductivity恒定或随温度变化的热容和热导;
  • Anisotropic conductivity 各相异性传导;
  • Ability to work in any user desired units 可以使用所需单元求解;
  • Finite difference conic surfaces such as cones, cylinders, rectangles, spheres, paraboloids, polygons, ellipsoid, elliptic cone, elliptic cylinder, and offset paraboloid有限差分参数曲面,如锥面、柱面、球面、抛物面、矩形面、多边平面、椭球面、椭锥面、椭柱面、偏置抛物面;
  • Finite difference solids such as bricks, cylinders, and spheres有限差分固体,如立方体、柱体、球体;
  • Finite elements - triangle, quadrilateral, tetrahedron, wedge, and bricks有限元——三角形、四边形、四面体、楔形体、立方体;
  • Edge node conics to span entire geometry of cones, cylinders, rectangles, spheres, or paraboloids边节点曲面能在锥面、柱面、立方体、球面或抛物面间的整个空间沿展成体;
  • Case Set Manager to take the model from geometric definition to temperatures with the click of a button without the user ever entering an editor能在图形界面上通过“Case Set Manager” 完成从几何定义到结果处理的所有操作;
  • Model browser that allows the user to easily locate nodes and the properties of them模型浏览器能快速定位节点及相关属性;
  • Complete geometrical post processing of thermal data - temperature, capacitance, heating rates, etc & as well as generic ASCII input全面的温度、热容、热流率等参量的后处理显示功能;
  • Fully integrated with the EZ-XY? Plotting Utility与EZ-XY Plotting Utility兼容;
  • Arbitrary nodes and conductors, including area based conductors to model convection导热、对流、辐射等多种节点和热导类型;
  • Surface Insulation objects for modeling Multi Layered Insulation (MLI), foam type insulators, or ablative materials多层隔热材料(MLI)、泡沫材料、烧蚀材料模拟;
  • Heater Objects加热器模拟;
  • Super Nodes and Super Networks超级节点和超级网络;
  • Automatic calculation of contact conductance between non aligned surfaces/edges自动计算非完全重合面接触热导和线接触热导;
  • Integration with SINDA/FLUINT与SINDA/FLUINT集成;
  • Traditional finite element functions such as showing free edges, merging coincident nodes, hiding interior solid faces, and surface coating capabilities提供传统的有限元功能,比如显示自由边、合并重合节点、隐藏内部固体表面和由几何体生成附体曲面等;
  • Conductors from a single node to multiple surfaces has been added to facilitate convection modeling单点与多面间的热导连接;
  • Tools to facilitate making movies (avi files) for post processing and viewing the spacecraft in orbit动画生成(avi)、航天器在轨动态显示等;
  • Thermoelectric Cooling Devices 温差电敏器件;
  • Extensive user comment capabilities for model documentation 生成详细模型文件;
  • Built in natural convection correlations内建的自然对流关联式。

CAD 建模技术

  • Snap on model building自动抓取关键点;
  • Drag and Drop model editing拖放编辑;
  • Wireframe, hidden, and rendered views线框图、遮挡图、渲染显示;
  • Boolean Surfaces 布尔表面;
  • Revolved Surfaces旋转面;
  • Extruded Surfaces拉伸面;
  • Mirrored Surfaces镜对称面;
  • Scaling 缩放;
  • Layer Management 层管理;
  • Multiple independent port views 多种视图;
  • User defined light sources 用户自定义光源。

输入输出功能

  • TRASYS输入输出
  • Nevada输入
  • IDEAS输入
  • FEMAP输入
  • NASTRAN输入
  • ANSYS输入
  • NASTRAN 和 ANSYS 温度分布输出
  • TSS输入输出
  • IGES (集成CAD的完全版、Mechnical Desktop)
  • STEP (Mechnical Desktop)
  • STEP-204 (集成CAD的完全版、Mechnical Desktop)
  • STEP-209输入输出
  • TASPCB 输入

系统要求

  • 操作系统:Windows NT,2000, XP Pro or Home
  • 内存: 512MB 以上
  • 显示: 1024x769 , 1280x1024 或更高

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