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    • 1. 发明专利
    • Apparatus, method, and program for stress-strain curve calculation
    • 应力应变曲线计算的装置,方法和程序
    • JP2010169500A
    • 2010-08-05
    • JP2009011572
    • 2009-01-22
    • Toyota Boshoku CorpToyota Central R&D Labs Incトヨタ紡織株式会社株式会社豊田中央研究所
    • NAKANO YUKIHITONAKAGAWA TOSHIAKIFURUSU KATSUYANISHIGAKI YOSHIOMI
    • G01M5/00G01N3/00
    • PROBLEM TO BE SOLVED: To provide an apparatus for stress-strain curve calculation, which can calculate a strain-rate-dependent stress-strain curve for a soft foamed material.
      SOLUTION: In the method for stress-strain curve calculation, a control unit 13 inputs experimental data (=an excitation frequency, a load acting on a test piece 1, and the displacement of the test piece 1) of an excitation experiment conducted at a certain excitation frequency (S101). The control unit 13 calculates a load after inertial force correction (S102) to calculate the strain, strain rate, and stress of the test piece 1 (S103). The control unit 13 plots the ternary data of the strain, strain rate, and stress calculated in S103 in a three-dimensional scattergram (S104). The control unit 13 checks whether or not processing for all the experimented excitation frequencies has ended (S105). When the processing has ended, the control unit 13 performs interpolation processing on the point groups in the three-dimensional scattergram produced in S104 to produce a stress response curved surface and stores it in a storage unit 15 (S106).
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种用于应力 - 应变曲线计算的装置,其可以计算软泡沫材料的应变率依赖应力 - 应变曲线。 解决方案:在应力 - 应变曲线计算方法中,控制单元13输入激励实验的实验数据(=激发频率,作用在试片1上的载荷和试片1的位移) 以一定的激励频率进行(S101)。 控制单元13计算惯性力校正后的载荷(S102),以计算试验片1的应变,应变速度和应力(S103)。 控制部13将在S103中计算出的应变,应变率和应力的三值数据绘制在三维散点图中(S104)。 控制单元13检查所有实验的激励频率的处理是否已经结束(S105)。 当处理结束时,控制部13对S104生成的三维散点图中的点组进行内插处理,生成应力响应曲面,并将其存储在存储部15中(S106)。 版权所有(C)2010,JPO&INPIT
    • 4. 发明专利
    • Rigidity analysis system of structure and its program
    • 结构及其程序的刚度分析系统
    • JP2008102041A
    • 2008-05-01
    • JP2006285478
    • 2006-10-19
    • Toyota Central R&D Labs Inc株式会社豊田中央研究所
    • FURUSU KATSUYATSURUMI YASUAKIAMAKO TATSUYUKINISHIGAKI HIDEKAZU
    • G01N3/20G01M99/00G06F17/50
    • PROBLEM TO BE SOLVED: To perform properly rigidity analysis of a structure constituted by connecting a plurality of unit structures constituted of thin plates.
      SOLUTION: The structure is expressed by a beam element model formed by connecting a plurality of beam elements (S2), and each beam element is expressed by a section model constituted of the thin plate (S3). The rigidity analysis is performed by utilizing the beam element model, and a force applied to both ends of the beam element is calculated (S4). An effective width of the thin plate is determined by utilizing a thin plate model from the acquired force applied to both ends of the beam element (S5). A section characteristic of the beam element is changed by utilizing the determined effective width, and the processing is repeated until the change of the effective width becomes below a prescribed level by utilizing the changed section characteristic (S6), and a rigidity analysis result when the change of the effective width becomes below the prescribed level is outputted (S7).
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:对通过连接由薄板构成的多个单元结构构成的结构进行适当的刚性分析。 解决方案:结构由通过连接多个光束元件(S2)形成的光束元件模型表示,并且每个光束元件由由薄板(S3)构成的截面模型表示。 通过利用梁单元模型进行刚度分析,计算施加到梁单元的两端的力(S4)。 通过利用施加到梁元件的两端的获取力利用薄板模型来确定薄板的有效宽度(S5)。 通过利用确定的有效宽度来改变梁元件的截面特征,并且通过利用改变的截面特性(S6)重复处理直到有效宽度的变化变得低于规定的水平,并且当刚度分析结果 输出有效宽度的变化低于规定的水平(S7)。 版权所有(C)2008,JPO&INPIT