| 四边形刚体平板的转动惯量与惯量主轴 |
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| 引用本文： | 刘凤智. 四边形刚体平板的转动惯量与惯量主轴[J]. 河南科学, 2009, 27(1): 27-30 |
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| 作者姓名： | 刘凤智 |
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| 作者单位： | 辽宁石油化工大学理学院,辽宁,抚顺,113001 |
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| 摘 要： | 任意四边形平板，在平面几何形体中具有一定的代表性，将四边形看成是由两个三角形构成的，则可用较简单的方法求出对质心且方向为任意的转动惯量．一般确定惯量主轴的方法非常繁杂．如果从四边形转动惯量的一般表达式着手，则可用简单的方法给出任意四边形的中心惯量主轴．
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| 关 键 词： | 任意四边形 惯量主轴 转动惯量 平板 刚体 一般表达式 几何形体 三角形 |
The Rotational Inertia for an Arbitrary Quadrilateral Rigid Plane and Its Inertia Principal Axis |
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| Liu Fengzhi. The Rotational Inertia for an Arbitrary Quadrilateral Rigid Plane and Its Inertia Principal Axis[J]. Henan Science, 2009, 27(1): 27-30 |
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| Authors: | Liu Fengzhi |
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| Affiliation: | School of Science;Liaoning University of Petroleum & Chemical Technology;Fushun 113001;Liaoning China |
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| Abstract: | Arbitrary quadrilateral rigid plane,have the certain representative in the plane geometry body,see quadrilateral rigid plane be constitute by two triangles,then the rotational inertia,for an arbitrary quadrilateral rigid plane through the center of mass of the rigid that can be free axes,can be obtained with the more simple method. The finding of the inertia principal axis was much more complicated. If we set out from the general expression type of the rotational inertia for an arbitrary quadrilateral rigid... |
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| Keywords: | rotational inertia quadrilateral centroidt inertia principal axis |
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