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1)  strain modality inspires
应变模态振型
2)  modal shape
模态振型
1.
The fluid-solid coupling modal analysis of G70B oil tank is done for light oil tank train under different kinds of loads and its natural frequency and modal shapes are obtained.
针对列车油罐因列车提速导致液固耦合作用突出的问题,运用ANSYS软件对轻型油罐车G70B型罐体的液固耦合模态响应进行实例分析和计算;建立车载油罐的液固耦合系统有限元模型;对轻型油罐车G70B型罐体进行在不同贮液比时的液固耦合模态分析,得出固有频率和模态振型图。
2.
Regarding the reinforced concrete damaged beam as the research object considering the nonlinear stress-strain relation of concrete based on Euler-Bernoulli beam and structure dynamics theory,through analysis of dynamic finite element,the natural frequency and modal shape in various kinds of damage states were obtained,and the effect of crack on dynamic characteristic was studied.
以钢筋混凝土梁为研究对象,基于Euler-Bernoulli梁理论和结构动力学理论,考虑混凝土的非线性本构关系,通过空间动力有限元分析,得到不同裂纹状态下梁的固有频率和模态振型,研究裂纹对简支梁振动响应的影响。
3.
This paper takes a type gas turbine rotor as an example to analyze its natural frequency and modal shape.
介绍了某型燃气轮机转子模态试验,试验测得转子静态固有频率和模态振型。
3)  Mode shape
模态振型
1.
The critical speed and mode shape of the system were calculated.
以自主研制的磁悬浮转子系统为研究对象,运动拉格朗日方程建立了系统的动力学方程,通过Matlab编制相应程序计算了系统在不同支承条件下临界转速及模态振型,计算得到转子在无支承条件下的一阶临界转速为75 Hz,控制作用下的一阶临界转速为110 Hz。
2.
The change of flexibility matrix contained in the crack beam structure is discussed; based on the wavelet-transform analysis with different mode shape functions, different rules of different mode shapes in the test of crack beam structure are summed up; wavelet transformation (with Gaus2 Wavelet) of the basic mode shape of a cantilever beam is carried out to detect cracks in the cantilever beam.
文章首先讨论了含裂缝梁结构的柔度矩阵的变化;其次,通过选择不同模态振型函数进行小波变换分析,总结了不同模态振型在梁结构裂缝检测中的不同规律;最后,文章以悬臂梁为例,选用Gaus2小波对悬臂梁基本振型进行小波变换,进而对悬臂梁中的裂缝进行识别,裂缝深度与Lipschitz指数进行拟合。
4)  strain mode
应变模态
1.
The methods of identifying damage location for weld in members of steel structure based on strain mode;
基于应变模态的钢结构构件焊缝损伤定位方法的研究
2.
Damage localization of changes based on the strain modes for simply supported beam;
基于应变模态的结构损伤定位方法
3.
Application of strain mode test to structural damage diagnosis of aqueducts;
应变模态试验技术在渡槽结构损伤诊断中的应用
5)  strain modal
应变模态
1.
Study on the strain modal s performance in damage detection of steel bars in bridges;
应变模态在检测桥梁钢筋损伤中的性能研究
2.
Fiber Bragg Grating Sensor and Recognition of Structural Damage Based on Strain Modal Theory;
光纤布拉格光栅传感器与基于应变模态理论的结构损伤识别
3.
Damage diagnosis of space truss based on change of elemental strain modal
基于单元应变模态差的网架结构损伤诊断研究
6)  resonance-type anomaly
共振型变态
补充资料:凹模、凸凹模工作型面加工工艺过程
1)备料。 n
    2)锻造。锻成长方形的坯料(每件留长工艺夹头)。 n
    3)热处理。退火。   n
    4)铣(刨)削。铣(刨)削六面成长方形模块。 n
    5)磨削。磨削上、下两端面及相邻两侧面,用90。角尺测量相邻两面的垂直度。 n
    6)钳工加工。用平板和划线盘按图划线,并打样冲眼;用钻头钻螺纹底孔;用圆柱销孔的预孔;用钻头钻挡料销让位孔;用钻头在中心处钻穿丝孔等;正、反面孔口倒角;凸凹模用钻头孔扩,保证刃口高度;攻螺纹;铰孔。n
  7)铣削。平口钳装夹工件;用的立铣刀铣削型孔至尺寸,保证深度。 n
   8)热处理。凹模工件淬硬至HRC60~64,凸凹模工件淬硬至HRC58~62。 n
   9)平磨。磨上、下两端面及相邻两侧面,用90。角尺测量相邻两面的垂直度至图要求;退磁。 n
   10)线切割。按图编制线切割程序,切割模型孔成形,留单面研磨余量0.005 mm。 n
   11)钳工加工。研光线切割面: n
   12)检验。 n复合冲裁模的装配应选择凸凹模作为装配基准件,先装下模部分,后装上模部分
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条