1) Main vector method
主分量原理
2) energy variation principle
能量变分原理
1.
Based on energy variation principle,the governing differential equations and the corresponding boundary conditions of box girder with consideration for the shear lag effect and shear deformation as well as rotational inertia were induced.
以能量变分原理为基础,综合考虑剪力滞后效应、剪切变形和转动惯量的影响,推导出箱形截面梁的控制微分方程和相应的自然边界条件,据此获得几种常用边界条件(简支、悬臂、连续、两端固支)的固有频率方程,提出一种能对工程中常用矩形薄壁箱梁自振特性进行分析的方法。
2.
The energy variation principle is applied to establish the governing differential equations and corresponding natural boundary conditions on the static and dynamic characteristics of thin-walled I-beam, and closed-form solutions of generalized displacements are obtained.
该文以能量变分原理为基础,建立了工字形梁静、动力分析的控制微分方程和自然边界条件,获得了相应广义位移的闭和解。
3) energy-variational principle
能量变分原理
1.
On the basis of the energy-variational principle,the differential equations and boundary conditions of curved girder under the vertical and the radial direction load are derived,and the corresponding closed solution is obtained.
按等代荷载法将空间预应力等效为竖向荷载和径向荷载,利用能量变分原理,推导出曲线梁竖向和径向的基本微分方程、边界条件,并求得相应的闭合解。
2.
On the basis of the energy-variational principle,the differential equations and boundary conditions of curved box girder are derived.
利用能量变分原理,推导出平面曲线箱梁的基本微分方程、边界条件;采用微分方程的齐次解作为位移模式,推导出平面曲线箱梁有限段法分析的单元刚度矩阵、荷载矩阵;编制了计算分析程序,计算结果与其他方法分析值吻合较好;探讨了抗弯刚度与抗扭刚度之比对连续曲线箱梁位移、内力的影响,为连续曲线箱梁的设计计算与施工提供了参考。
3.
The governing differential equations and boundary conditions of the box girder under lateral loading are derived using energy-variational principle.
应用能量变分原理,导出了箱梁受横向荷载作用下的剪滞控制微分方程和边界条件,获得相应的闭合解,并探讨了不同纵向位移差函数对剪力滞的影响。
4) energy variational principle
能量变分原理
1.
Static analysis to the pre-stressed double layer suspended cable structure is analyzed by energy variational principle and finite element method.
本文采用能量变分原理对双层索进行静力分析,得到了在均布荷载、三角形荷载和对称三角形荷载作用下的挠度近似公式,并与采用有限元法分析的结果进行比较。
2.
By using energy variational principle, the stiffness matrix and the nodal loading vector of the segment element are gained when shearing deformation is considered, and the merits of this method are indicated.
利用能量变分原理 ,导出了考虑剪切变形情形的梁段单元刚度矩阵和荷载列阵 ,并指出这方法的优
5) parametric variational principle
参变量变分原理
1.
Analytical solutions of composite modulus of multi-element composite foundation by parametric variational principle;
多元复合地基压缩模量参变量变分原理解析解
2.
The analytical solutions of composite modulus in both elastic and plastic conditions are deduced by applying parametric variational principle.
应用参变量变分原理推导了复合模量在弹性及塑性状态下的解析解。
3.
Based on Perzyna visco_plasticity model and parametric variational principle,the full coupled variational principle and its F.
根据Perzyna粘塑性模型 ,应用参变量变分原理 ,建立了高温 (火灾 )下混凝土结构分析的全耦合变分原理 ,给出了原理应用的有限元列式 。
6) parametric variation principle
参变量变分原理
1.
This paper proposed the elastoplastic constitutive model of swelling rock based on the humidity stress field theory and by using parametric variation principle to establis.
由于含水率的变化使膨胀岩的弹性模量、泊松比和屈服极限等力学性能都将发生变化,从而引起膨胀应力、塑性流动和随湿度场而变化的屈服准则等都相互耦合在一起,因此,提出了基于湿度应力场理论的膨胀岩的弹塑性本构模型,并运用参变量变分原理建立了处理这一类问题的数值变分原理及其相应的有限元形式。
2.
Based on updated Lagrangian formulation of elasto-plastic large deformation theory,the numerical simulation method of Biot′s consolidation theory on elasto-plastic large deformation is developed using the idea of parametric variation principle.
根据大变形弹塑性理论Lagrangian描述的UL方法,利用参变量变分原理的思想推导建立了弹塑性大变形Biot固结理论的数值模拟计算方法。
3.
Numerical manifold method of elastoplastic analysis is presented by using the parametric variation principle.
利用参变量变分原理建立了弹塑性分析的数值流形方法。
补充资料：主链断裂和主链裂解
分子式：
CAS号：
性质：又称主链断裂和主链裂解。发生在有支链结构高分子的主链上的共价键的断裂反应。可细分为两种类型：一种为主链端基断裂(断裂反应发生在末端链节上)；一种为主链无规断裂(高分子主链的断裂没有固定点，主要发生在弱键处)。
CAS号：
性质：又称主链断裂和主链裂解。发生在有支链结构高分子的主链上的共价键的断裂反应。可细分为两种类型：一种为主链端基断裂(断裂反应发生在末端链节上)；一种为主链无规断裂(高分子主链的断裂没有固定点，主要发生在弱键处)。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条