1) equivalent restriction
等效约束
1.
Based on unified strength theory solution of thickness cylinder,according to the characteristics and equivalent restriction reduction factor of concrete,circle hollow section(CHS) inner and square hollow section(SHS) outer concrete-filled double skin tubes were equivalent to CHS inner and CHS outer concrete-filled double skin tubes through introducing concrete strength reduction factor.
在厚壁圆筒统一强度理论解的基础上,根据外方内圆中空夹层钢管混凝土的特点,通过引入混凝土强度折减系数和等效约束折减系数,将外方内圆中空夹层钢管混凝土等效为外圆内圆中空夹层钢管混凝土,推导了外方内圆中空夹层钢管混凝土轴压短柱的极限承载力公式,并将该公式的计算结果与文献试验结果进行了比较。
2) equivalent restraint stiffness
等效约束刚度
1.
According to the characteristic of main tower in the suspension bridge from single tower, main cable and girder construction to final stage, the equivalent restraint stiffness k is utilized to simplify the main cable constraint to the main tower, and the model is developed to simulate the constraint of the main cable to the tower during different stage.
根据悬索桥主塔从裸塔、主缆施工、主梁吊装到成桥不同阶段的受力特点,将悬索桥主缆对 主塔的约束作用简化为不同等效约束刚度的弹簧,利用静力法推导了带有弹簧约束的主塔模型稳 定临界力计算公式,并给出中、边跨主缆约束刚度的计算公式及主缆对塔约束刚度的计算方法。
3) equivalent constraint model
等效约束模型
1.
The equivalent constraint model a.
采用二维剪切滞后模型并对其层间剪应力在厚度方向进行线性假设分布,求得层合板的平均应力应变的线弹性解,利用等效约束模型和经典层合理论可得到层合板因为含有基体裂纹而所引起的刚度退化现象。
4) equivalent confining stress
等效约束应力
5) equivalent confining diameter
等效约束半径
6) equality constraints
等式约束
1.
Particle swarm optimization algorithm based on parametric equation method to handle equality constraints;
基于参数方程处理等式约束优化的粒子群算法
2.
The Descending Dimension Algorithm by a Nonlinear System of Equations of the Programming Problems with Equality Constraints;
等式约束规划问题的非线性方程组降维算法
3.
In the paper, equality constraints after networks distributed are included into objective function with Lagrange multiplier based on PMUs, so the problem of the distributed state estimation is changed into optimization problem with equality constraints, realized the distributed paral.
在配置少量PMU的基础上,将分区后的边界等式约束条件通过拉格朗日乘子计入整体目标函数,将分布式状态估计的问题转化为一个带等式约束的最优化问题,实现了电力系统状态估计的分布式计算。
补充资料：比等效百万吨数