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1)  compatibility equation
协调方程
1.
The system of mechanism comes down to the study on mechanism and self stress of system based on force method,where establishment of equilibrium equation and compatibility equation play a foundational role.
机构位移分析是建立在力法基础上,对体系的机构位移和自应力进行分析研究,而体系分析研究的前提是平衡方程和协调方程的建立。
2.
The development process of the finite element method is introduced briefly,and the theoretic fundamentals of the quasi-conforming element method is analyzed from generalized equilibrium equations,generalized compatibility equations and its weak continuity condition.
简述有限元的发展过程 ,从广义平衡方程、广义协调方程和拟协调元弱连续条件等方面分析了拟协调元的理论基础 ,说明了拟协调元是有限元发展的必然趋势 ,其做法就是广义协调方程的直接解 ,自然满足平衡对弱连续条件的要求。
3.
Based on the force equilibrium and geometric compatibility equations of the middle plane,two governing differential equations for calculating the displacement of a slab and the Airy stress function were derived.
通过分析板块中面的平衡方程及位移协调方程,建立了由板位移和Airy应力函数表示的2个微分控制方程。
2)  compatible equation
协调方程
1.
Based on the catenary cable element model,a new compatible equation which reflects the relationship between the unelongated cable length and the horizontal component of its tensile foce is put forward.
基于精确的悬链线索元模型,本文推导了一种反映索原长和索张力水平分量之间关系的协调方程式,以及适用于动力松弛法找形分析的索元弦向刚度表达式。
3)  deformation compatibility equation
变形协调方程
1.
Based on the traditional method of making geometrical chart,the analytical expressions of deformation compatibility equation of statically indeterminate truss is obtained in this paper.
:在传统的几何作图法的基础上,导出了静不定桁架变形协调方程的解析表达式。
2.
The sheet pile is assumed as a simply-supported beam on elastic foundation,and then the deformation compatibility equation between soil and sheet pile is established.
通过在板桩拉杆锚碇点与板桩底端设置计算模型的人工支座,即将板桩的计算模型简化为简支梁,建立板桩与土的变形协调方程,再根据板桩的边界条件,建立静力平衡方程,求解得板桩的内力及拉杆拉力。
4)  compatibility equation of deformation
变形协调方程
1.
By using this relations,we can calculate node displacement of the statically indeterminate structure of bar system and to build compatibility equation of deformation of the statically indeterminate structure of bar system which possesses conventional and general features,to avoid painting di.
将速度投影定理推广到弹性杆,通过定义杆的单位向量,建立了杆端点的位移与杆轴向变形的几何关系,用此关系计算杆系结构的节点位移和建立静不定杆系结构的变形协调方程具有程式化和普遍性的特点,避免了绘制位移图和寻找几何关系的繁琐。
5)  stress harmonistic equation
应力协调方程
1.
By means of the stress function method, we discussed the elasticity and plasticity theory of twisting of variatble diameter torsion bar spring,presented the stress harmonistic equations about the stress intensity, and solved them with separating variable method, determined its boundary conditionl according to twisting of torsion bar spring.
应用应力函数法探讨了变直径圆轴扭转的弹塑性理论 ,建立应力集中的应力协调方程
6)  generalized compatibility equations
广义协调方程
1.
Brief development process of the finite element method,foundation of quasi conforming element has been analyzed from weak formulation generalized compatibility equations and its weak continuity condition.
从弱形式广义协调方程和拟协调元的弱连续条件等方面分析了拟协调元的理论基础 ,从形式上看弱形式对函数的连续性降低了 ,但对实际的物理问题常常较原始的微分方程更逼近真正解 ,其做法就是广义协调方程的直接解 ,自然满足平衡对弱连续条件的要求。
补充资料:应变协调方程
      线性弹性力学中的六个应变分量εij之间必须满足的微分方程。 六个应变分量εij是由三个位移分量导出的,它们彼此之间存在一定的内在联系,这些联系就是应变协调方程。应变协调方程有六个,可以表示为:
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  应变协调方程有下列重要特性:①任何由三个连续可微的位移分量按弹性力学的几何方程导出的一组应变分量,都满足应变协调方程。因此,不满足应变协调方程的应变不可能是从真实位移按几何方程的关系产生的。②上述方程中的任何五个成立,并不意味着第六个一定成立,即六个应变协调方程具有一定的独立性。③任何一个应变分量恒满足的线性微分关系,都可以化为上述六个应变协调方程的线性组合,所以应变协调方程概括了应变分量之间的全部恒等微分关系。④对于单连通的区域,如果给出的应变分量满足上述方程,则可以从位移和应变的关系求得单值、连续的三个位移分量。所以对于单连通区域,应变协调方程概括了应变分量之间的全部必然联系。⑤对于多连通区域,应变协调方程不能概括应变分量之间的全部必然联系。事实上,应变分量之间有一些恒等的积分关系,它们不从属于应变协调方程所表达的微分关系。
  

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