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关于四边形面积坐标的积分

INTERGAL OF QUADLILATERAL USING AREA COODINATES
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摘要 在采用四边形面积坐标的四边形单元中,单元的协调部分和非协调部分是通过广义协调条件的计算而获得,在运用解析积分的计算中,具有比较好的抗畸变能力,并且具有比较高的精度。然而,如果在计算过程中运用数值积分进行计算,则计算后的精度会有所不同,通过数值算例的计算可以说明这一点。 The compatible and incompatible part of quadlilateral plane element using area coodinates are designed by generalized compatible conditions. In some testing example,using analysis intergal can get accurate result and be insensitive to mesh destortion. However,if using numerical value intergal in caculating, the result will be different,testing example can show it.
作者 陈宇亮
出处 《科技创新导报》 2009年第26期165-167,共3页 Science and Technology Innovation Herald
关键词 有限元 面积坐标 积分 finite element area coodinates quadlilateral plane element intergal
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