简介:本文介绍了602所应用CAE技术的现状,并介绍了应用有限元法进行结构分析的经验,和应用先进的CAE技术的体会,指出了工程应用中的不足,展望了CAE技术的应用前景。
简介:Theoilpanusedinearengineisoneoftheimportantstructurepartsinthecar,whichis,ingeneral,deepdrawnanddifficulttofrom.Thedeep-drawingprocessesoftheoilpanusedintheenginefor'SmallFlag'CaroflheFirstAutomobileManufactoryisanalyzedbyusingtheintegrativeCAD/CAE/CAMtechniqueofstampingdie,ineludingtheCADsoftwareCATIAandthesheet-metalstampingCAEsoftwareKMASdevelopedindependently.ThroughananalysisofdiestructureandformabilityusingtheKMASsoft-ware,theprimarytwi-offdeep-drawinghassuccessfullybeenchangedtotheone-offdeep-drawing,solvingthekeyteehniealdifficultiesforthemanufactory.
简介:资本资产定价模型(CAPM)和套利定价理论(APT)是关于资本市场均衡的两个比较著名的模型。二种模型虽然在解释的角度、基本很设、方法、以及适用范围上均有重大区别,但是殊途同归,它们得出的结论是一致的:期望收益与风险之间存在着正相关的关系。