The dynamics of bolted and laminated rotors
The dynamics of bolted and laminated rotors
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发表时间：
2000
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影响因子：
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通讯作者：
A. Isa;J. Penny;S. Garvey
中科院分区：
文献类型：
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作者：
A. Isa;J. Penny;S. Garvey
所有运转中的旋转机器中有很大一部分具有螺栓连接或层压结构的转子。燃气涡轮机和小型蒸汽涡轮机通常包括一组盘，所述盘通过单个中心螺栓或小节圆直径上的少量螺栓夹紧在一起，从而将涡轮机叶片的根部夹在相邻盘之间。大多数电机（永磁电机除外）都有一个坚固的锻造或装配轴，轴上装有一堆叠片。这种转子的动力学可能与类似尺寸的实心转子的动力学完全不同。本文报告了对这种转子的行为进行调查的早期进展。本文介绍了一个试验台，并给出了一些试验结果。这些测试结果和模拟预测之间的比较。
A significant proportion of all of the rotating machines in operation have rotors which are either bolted or laminated construction. Gas-turbines and small steam turbines frequently comprise a set of discs clamped together by either a single central bolt or a small number of bolts on a small pitch circle diameter thereby trapping the roots of the turbine blades between adjacent discs. Most electrical machines (except permanent magnet machine) have a solid forged or fabricated shaft onto which a stack of laminations is fitted. The dynamics of such rotors are potentially quite different from the dynamics of a solid rotor of similar dimensions. This paper reports early progress on an investigation into the behaviour of such rotors. A test-rig is described together wish some experimental results from this rig. Comparisons are made between these test results and predictions from simulations.