| 1. | Then , the principle of virtual work is used to derivate the equilibrium condition of cm
在以上基础上，应用虚功原理，推导出柔性机械稳态的条件。 |
| 2. | The stochastic principle of virtual work is formulated for viscoelastic structural analysis . the innovated principle has solid theoretical basis and allows incorporation of different kinds of random factors
建立了粘弹性随机分析的虚功原理，可以统一考虑各类随机因素，理论基础更加完善。 |
| 3. | 3 . the principle of virtual work with complementarity and the the principle of energy with complementarity for elasto - plastic problem were educed and a fe - linear complementarity model was proposed with the linearization of yield function
推导了弹塑性问题的互补虚功原理与互补能量原理；利用了taylor级数展开对屈服函数作线性化处理，建立了弹塑性问题的有限元线性互补模型。 |
| 4. | The contact problem fem formulae in this paper are constructed by means of principle of virtual work instead of variational principle which has been wildly used for classical problems , for it is difficult to found the corresponding function expression for contact problems
由于接触问题属固体力学非经典问题，故很难采用对能量泛函变分的方法，本论文通过虚功原理建立其计算公式。 |
| 5. | Starting from two well - accepted assumptions in theory of thin - walled beams , a general theory for linear analysis of curved beams with any open sections is established in this paper by using the principle of virtual work . the equations of equilibrium and natural boundary conditions are given
文章首先从薄壁构件理论的两个基本假定出发，利用虚功原理，建立起一套精确的、可以应用于任意开口薄壁截面圆弧曲梁的线性理论，给出相应的平衡方程和边界条件。 |
| 6. | Abstract : a previously proposed approximate quasi - static theoretical method is employed herein to examine the deformation and perforation of a simply - supported circular plate struck by a flat - faced projectile at normal incidence . based on the principle of virtual work , static load - displacement relationships are first obtained and then used to predict the energy - absorbing capacity of the plate subjected to relatively low speed impact . it is shown that good agreement is obtained between the theoretical predictions and the available experimental data , provided that adiabatic shear plugging failure does not occur , but the influence of strain rate sensitivity is taken into account
文摘:采用准静态近似理论方法分析简支圆板在平头弹丸正撞下的变形和穿透.首先基于虚功原理得到了静态荷载位移关系,并将其用于预测低速冲击下圆板的能量吸收能力.当考虑了材料的应变率敏感性,并且不发生绝热剪切冲塞破坏的前提下,理论预测和实验结果吻合良好 |
| 7. | On the basis of the principle of virtual work for deformable body , a finite element method for the contact problem was proposed and the procedure for solving an elasto - plastic contact problem was given , especially focusing on the technique to deal with the penetrating contact status , i . e . two contact bodies penetrate each other
根据变形体的虚功原理，建立了接触问题有限元公式及相应的计算方法，介绍了求解弹塑性接触问题的过程，并著重讨论了“侵入”状态的处理方法。 |
