1) tangent constraint
切向约束
1.
In this paper a new interpolation method for quadratic B-spline curves is proposed so as to fully utilize the degrees of freedom provided by parameterization and knot vector to control the shapes of the interpolation curves intuitively by the tangent constraints on data points.
利用数据点的参数化和节点向量的自由度,构造在各数据点满足切向约束的二次B样条插值曲线,直观地控制插值曲线达到预期形状。
2) chip restriction
切屑约束
1.
Aiming at the structural characteristic of complex groove, by studying the chip restriction action of geometrical element which is composed of complex groove, the equation of chip restriction action point and the prediction formula of chip - curl directional angle are deduced and the prediction model of complex groove chip up -curl radius and side -curl radius are destablished.
针对复杂槽型的结构特点,通过对复杂槽型几何元素切屑约束作用的研究,推导出了 切屑约束作用点方程及切屑卷曲方向角预报公式,建立了复杂槽型切屑上向卷曲半径和横向卷曲 半径的预报模型,该模型为今后进行切屑折断预报和复杂槽型的设计与优选提供了理论指导。
3) shear constraint
剪切约束
4) axial restraint
轴向约束
1.
Parametric studies show that: the existence of the axial restraint causes an increase in the axial force before the column buckles and will reduce the buckling temperature of the column,however it has little influence on the column s .
提出了一种改进的Jezék方法,用于火灾升温下轴向约束钢框架柱屈曲后性能分析,高温条件下钢材的应力-应变关系考虑了钢柱屈曲后凸侧可能出现的卸载现象。
2.
Authors investigated the axial restraint on fire resistance of unprotected steel column with commercial finite element method(FEM) software MSC MARC Mentat.
采用大型商用有限元软件MSC MARC Mentat研究了钢结构柱所受轴向约束的刚度对抗火性能的影响,对无保护层钢结构柱的抗火性能进行有限元分析,分析结果与试验结果吻合较好。
3.
The effects of end-plate connection and axial restraint on the behaviour of steel beams are also attained.
得出钢梁的温度场分布、变形情况及端板连接、轴向约束对钢梁的影响。
5) lateral restraint
侧向约束
1.
Methods for analyzing lateral restraint of prestressed concrete structures;
预应力混凝土结构侧向约束影响的分析方法
2.
Based on the measured construction research at its stretching stage of a two-span,post-tensioning bonded partially prestressed concrete continuous beam,the value of friction coefficient,the strain in the concrete beam s cross-section,and the effect of lateral restraint are analyzed and discussed.
5m双跨后张有粘结部分预应力混凝土连续梁进行施工张拉阶段和模拟使用阶段的工程实测,结合我国设计规范和计算机程序,分析和探讨了摩擦系数的取值、混凝土截面应变分布、侧向约束的影响等,得出一些有益的结论,希望对工程设计和施工有所帮助。
3.
The influence of lateral restraints on the prestressed concrete structure has been discussed in many papers and main factors including the style of structures,stiffness ratio of column to beam and method of construction are considered except the distribution of effective prestress.
改变柱梁的线刚度比、摩擦系数进行计算分析发现,侧向约束影响系数将随着梁柱线刚度比的减小而减小,随着摩擦损失的增大而增大;忽略有效预应力的分布得到的结果与实际情况有偏差,这种偏差随着梁柱线刚度比的减小而增大,随着摩擦损失的增大而增大,因此预应力作用受侧向约束的影响应考虑有效预应力的分布。
6) single-directional restraint
单向约束
1.
The paper also provide the comparison result about nonlinear analysis such as single-directional restraints and buried pipe modeling.
考虑到管道静力分析中的难点如单向约束、埋地管道等问题,探讨了AutoPSA的非线性分析功能。
2.
The comparison result about nonlinear analysis such as single-directional restraints and buried pipe modeling are provided.
考虑到管道静力分析中的难点如单向约束、埋地管道等问题,探讨了AutoPSA的非线性分析功能,并结合实际的工程例题,比较了AutoPSA与CAESAR II的计算结果,算例表明AutoPSA与CAESAR II分析结果非常吻合。
补充资料：切向力
物体作曲线运动时，在其轨道切线方向上所受到的力。它使物体获得切向加速度。如平抛运动中，重力的切向分力将产生切向加速度，使物体的切向速度逐渐增大。
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