Test Results and Analytical Predictions for MIL-STD-167 Vibration Testing of a Direct Drive Compressor Supported on Magnetic Bearings
Test Results and Analytical Predictions for MIL-STD-167 Vibration Testing of a Direct Drive Compressor Supported on Magnetic Bearings
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磁力轴承支持的直驱压缩机的 MIL-STD-167 振动测试的测试结果和分析预测
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
K. B. Nambiar
中科院分区：
文献类型：
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作者：
L. Hawkins;Rasish Khatri;K. B. Nambiar
外部振动测试是在一个半封闭的，直接驱动压缩机上的磁性轴承预期用于美国海军舰载。将压缩机放置在美国海军MIL-STD-167振动台上，并在4至33 Hz的正弦频率下以等于最大1.5 Gs的分级位移驱动。在机器设计阶段，线性强迫响应分析的转子，外壳和磁轴承的耦合转子动力学系统模型进行预测转子/外壳位移和致动器负载。结果被用来指导轴承尺寸和控制算法的设计。测量的转子运动和致动器电流相关性以及在所有测试的频率，振幅和方向的预测。分析方法，测试结果和比较报告在这里。
External vibration testing was performed on a semihermetic, direct drive compressor on magnetic bearings intended for U.S. Navy Shipboard use. The compressor was placed on a U.S. Navy MIL-STD-167 shaker platform and driven at sinusoidal frequencies from 4 to 33 Hz at graduated displacements equal to a maximum of 1.5 Gs. During the machine design phase, a linear forced response analysis of the coupled rotordynamic system model of the rotor, housing, and magnetic bearings was performed to predict rotor/housing displacements and actuator loads. The results were used to guide bearing sizing and control algorithm design. The measured rotor motion and actuator currents correlated well with predictions at all tested frequencies, amplitudes, and orientations. Analysis methodology, test results, and comparisons are reported here.