关键词: 不平衡量, 砂轮, 现场识别, 最小二乘法, 动网格, 螺杆压缩机, 气流脉动, 数值模拟

Abstract: A new method on identifying the unbalance value of grinding wheels-a least-square method is presented. The identifying model has been set up and the typical formulae to determine the unbalance amplitude and phase angle are induced. The experiment results show that this method can decrease the influence of measurement error on identifying precision and improve balance precision.

Key words: Grinding wheel, In-situ identification, Least-square method, Unbalance value, dynamic mesh, gas pulsation, numerical simulation, twin-screw compressor