粘滞变形
Lagrange equation is applied to develop dynamic equations for the slider crank mechanism with elastic connecting rod. Viscous friction and coupling effect are considered between rigid body motion and elastic deformation of connecting rod.
利用Lagrange方程建立了曲柄滑块机构的动力学数学模型,在建模过程中考虑了连杆的弹性运动与机构刚体运动的耦合以及运动副的粘性摩擦。
The material is found remained in plastic state from 400 ℃ to 1400 ℃; even at 1400 ℃, no viscous flow is observed. But above 800 ℃, the amount of plastic deformation increases with temperature rising;
材料从400℃开始到1400℃一直保持塑性状态,在1400℃仍没有进入粘滞流动阶段,只是在800℃以上变形量有所增加;
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