| 摘要 |
<p>BALANCING METHOD FOR USE IN MULTI-SPAN ROTOR SHAFT SYSTEM AND BALANCING SYSTEM USING SAME A balancing method for use in a multi-span rotor shaft system for a prime mover, such as a large-capacity, large-sized steam turbine and generator. A balancing influence coefficient representing the relationship between a unit weight and vibration, when the aforesaid unit weight is attached to a given balancing plane of a multi-span rotor, is first determined, and then a balancing plane, to which is to be attached a correction weight, is selected, then a correction weight is determined so as to minimize values of residual vibration amplitude, by using the method of least squares, which values are dependent on the values of the initial vibration amplitude, influence coefficients and correction weights. Thus, a weight corresponding to the aforesaid correction weight is attached to the aforesaid balancing plane to reduce vibrations in a shaft.</p> |
