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1)  stationary complementary energy principle
驻值余能原理
2)  generalized variational principle / complementary energy stationary value principle
广义变分原理/余能驻值原理
3)  principle of resident potential energy
势能驻值原理
1.
Concludes and analyses the physical notion and mathematical method of the principle of resident potential energy, furthermore deducing the derivative principles: principle of invariable potential energy, principle of least potential energy and Timoshenko energy method, the applicable conditions of which are narrated, making the physical and mathematical notions consistent.
对能量法中势能驻值原理的物理概念和数学方法进行整理、归纳和明析,进而推演出该原理的派生原理:势能不变值原理、最小势能原理和Timoshenko能量法,使各基本原理的物理和数学概念协调统一。
2.
By collecting,generalizing and analyzing the physical concept and mathematical method of the principle of resident potential energy,it deduces the derivative principles: principle of resident and invariable potential energy and Timoshenko energy method.
对势能驻值原理的物理概念和数学方法进行整理、归纳和明析,进而推演出该原理的派生原理:势能不变值原理、最小势能原理和Timoshenko能量法,对各原理的适用条件进行了阐述,使各基本原理的物理和数学概念形成协调统一。
3.
Based on the principle of resident potential energy,a nonlinear differential equation of static beams with the nonlinear effect of dead loads is included,and the effect of the dead loads on deflection of cantilever beams is studied by Galerkin method.
应用势能驻值原理,推导出恒载对梁活载挠度影响的非线性微分方程,通过Galerkin方法研究了恒载对悬臂梁活载挠度的影响。
4)  principle of stationary potential energy
势能驻值原理
1.
The equation of relationship between the top displacement and the rod angle of frame structure is established according to the principle of stationary potential energy.
根据势能驻值原理建立了框架顶部侧移和杆端转角之间的关系方程,推导出框架结构在水平节点荷载作用下的顶部侧移计算公式,方法简便适用,且计算精度较高,为框架结构顶部侧移的计算提供了一种新的简便计算方法,得出了用D值法求得的框架顶部侧移一般比实际侧移偏大的结论。
2.
Differential equations are obtained according to the principle of stationary potential energy.
根据势能驻值原理,推导得到了平衡微分方程。
5)  Principle of potential energy
势能驻值原理
6)  stationary value principle
驻值原理
1.
Because the items be introduced,difference of composite with imperfect interface from one with perfect interface is that stationary value principles of the former is no longer equivalent of variation equations corresponding the principles.
与完美界面不同的是,由于这个积分项的引入,非完美界面复合材料的驻值原理不再与相应的变分方程等价。
补充资料:弹性力学最小余能原理
      弹性力学的能量原理之一,它可表述为:整个弹性系统在真实状态下所具有的余能(见应变能),恒小于与其他可能的应力相应的余能。其中可能应力是指满足平衡方程和力的边界条件的应力,记为σ。整个弹性系统的余能表示式为:
  
  
  ,式中左侧为真实应力σij对应的余能;右侧第一项为弹性体的余能,uij)为余能密度,Ω是物体所占的空间;第二项为已知边界位移的余能,B1为给定位移的边界面,ūi为给定的位移分量,pi为面力分量,dB为B1上的面积微元;式中重复下标表示约定求和。这样,最小余能原理可表示为:
  
  
  
  
   Uij)≤U(σ),式中的等号只有当可能应力是真实应力时才成立。最小余能原理实质上等价于弹性体的变形连续条件。它可作为弹性力学直接解法和有限元法计算的重要基础。
  
  

参考书目
   胡海昌著:《弹性力学的变分原理及其应用》,科学出版社,北京,1981。
  

说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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