| 用非线性理论计算旋转式起重机的最大偏摆角 |
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| 引用本文： | 朱从鉴,顾龙全.用非线性理论计算旋转式起重机的最大偏摆角[J].上海海事大学学报,1993(4). |
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| 作者姓名： | 朱从鉴 顾龙全 |
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| 作者单位： | 上海技术师范学院
(朱从鉴)，上海技术师范学院(顾龙全) |
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| 摘 要： | 本文以实验为依据,假定起重机的旋转角速度按正弦规律变化,推出货重偏摆角的非线性微分方程。借助计算机求得数值解,得出以下3点结论:(1)最大偏摆角仍近似与幅度R成正此;(2)摆长l对最大偏摆角的影响在n>2时尤为显著,变化复杂,各特性曲线会相交,在n≤2时,影响不大;(3)负的初偏角会使最大偏摆角减小,反之,会增加。
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| 关 键 词： | 非线性理论 旋转起重机 偏摆角 摆长 幅度 |
Calculation of the Maximum Swing Angle of the Slewing Crane by Means of Nonlinear Theory |
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| Zhu Gongjian Gu Longquan.Calculation of the Maximum Swing Angle of the Slewing Crane by Means of Nonlinear Theory[J].Journal of Shanghai Maritime University,1993(4). |
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| Authors: | Zhu Gongjian Gu Longquan |
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| Institution: | Zhu Gongjian Gu Longquan |
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| Abstract: | This paper assumes the rotational angular velocity of a crane according to the experimental sine rule, and derives the nonlinear differential equations of the swing angle. The numerical value solution of the differential equations is obtained through computer calculation. Three conclusions are reached as follows:
1. The maximum swing angle is directly proportional to range R approximately
2. When n>2, the maximum swing angle is obviously affected by swing length, its variation is complicated, and each pair of curves intersects; when n<2, the affection is little.
3. The negative initial swing angle reduces the maximum swing angle conversely, the positive one increases it. |
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| Keywords: | nonlinear control systems slewing cranes swing angle swing ength range |
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