目的：探讨上颌骨三维有限元分析中较合理的边界约束条件的设定。
Objective: to discuss the rational boundary constraint design in finite element analysis of the whole edentulous maxillary and cranial skeleton.
分析结果表明，边界约束条件对斜拉桥结构的地震反应有明显影响；
The comparison is made in terms of the seismic response of this bridge of two types of boundary conditions.
结合边界约束条件对网架温度应力的影响来探讨网架结构边界条件的选型。
Boundary conditions style selection of space grids are discussed based on boundary restraint conditions affecting temperature stress of space grids.
在结构施工过程中，结构受力体系、边界约束条件、荷载分布在不断的改变。
In the process of structure construction, the structural system, boundary constraint conditions and load distribution are constantly changing.
在二次误差度量算法的基础上，考虑边界约束条件和法向量限制，扩展了算法的应用范围。
Based on the primary quadric error metric arithmetic, combined with boundary constrained condition and normal restriction, the primary arithmetic is modified and the application scope is extended.
利用四点格式生成等值线图的内边界曲线，给出了带内边界约束条件的等值线图的绘制算法。
In this paper, a drawing algorithm of contour lines with inner boundary constraints is obtained by the inner boundary curves of contour lines generated by using four-point method.
进而在符合机床实际加工状态的边界约束条件下，利用传递矩阵法对传动链扭振特性作了计算分析。
Under new boundary restraint condition in accordance with the actual working condition of the machine, the torsional freqency response is computed with complex transfer matrix method.
阐述了砼结构体表比和约束比对温度和收缩应变和裂缝的影响程度，推导出R．C结构在四周无变位边界约束条件下的温度和收缩应变、应力及裂缝宽度计算公式和运用实例。
The formula of strain and crack width of temperature and contraction with no varying place constraint con detion are deduced, capale be design basis for crack control of R. C structure.
阐述了砼结构体表比和约束比对温度和收缩应变和裂缝的影响程度，推导出R．C结构在四周无变位边界约束条件下的温度和收缩应变、应力及裂缝宽度计算公式和运用实例。
The formula of strain and crack width of temperature and contraction with no varying place constraint con detion are deduced, capale be design basis for crack control of R. C structure.
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