| 1. | Shape - finding of cable net and membrane structures by force density method
索和膜结构的力密度法找形分析 |
| 2. | Lines of force density
力线密度 |
| 3. | Lateral force density
横力密度 |
| 4. | A selfequilibrating stress system must be found . force density method is deve1oped for form finding
本文推导了用力密度法进行索膜结构形状确定的理论公式。 |
| 5. | The force density method and the nonlinear finite element method are used together to do form - finding analysis of the membrane structures
采用力密度方法和几何非线性有限元方法联合求解已知预应力分布求解几何的形态分析。 |
| 6. | For form - finding of membrane structures , the common methods mainly indued three theory : nonliner fem , dynamic relaxation method and force density method
对于索膜找形分析，目前普遍常用的是非线形有限元法、动力松弛法和力密度法。 |
| 7. | Based on the principle of the force density method , a new shape finding method for the solution of this special problem is developed
该方法不受结构形式的限制，且引入了很少的计算假定，能够解决不同形式的索杆张力结构施工过程的形态分析问题。 |
| 8. | ( 2 ) the theory of the form - finding analysis of the cable - membrane structure with the force density method is deduced explicitly and corresponding formulae are obtained
( 2 )对应用国际上比较流行的力密度法对索膜结构进行找形分析的问题进行了一系列的理论推导，得出了相关的公式。 |
| 9. | According to that , the calculation program of the form - finding analysis of cable - membrane structures using the force density method is composed on the platform of digital visual fortran 5 . 0
并且，根据理论推导的结果，应用digitalvisualfortran5 . 0编制了对索膜结构进行找形分析的力密度法计算程序。 |
| 10. | Two approaches of dispersion with force density method in form finding of cable and membrane are derived in this thesis . programs are compiled based on the theory the joillting must guarantee the smoothly transfer of stress
用力密度法找形的一个关键问题是如何将膜片离散，本文推导了两种离散方法运用于力密度找形分析中，并编制了计算程序。 |
