The balancing process , then , involves determining the number of gram - centimeters to be compensated for , and locating the proper angular position at which to add such compensation 厘米）加在转子固有不平衡量的相反位置上，故平衡的过程涉及不平衡量大小的补偿值的决定，及补偿值的正确定位。
A new phenomenon is found numerically and experimentally : even if the rotating speed of the rotor is lower , the subharmonic vibration of the rotor - bearing system may be occurred under great disturbance ( unbalance ) 通过理论计算和分析发现：提出了即使在较低转速的情况下，只要外激励(不平衡量)足够大，也有可能导致转子出现油膜涡动或者失稳的现象。
Note that the amount of heat required to melt enough ice to raise sea level one meter is about 12 watt - years ( averaged over the planet ) , energy that could be accumulated in 12 years if the planet is out of balance by one watt per square meter 要让海平面上升一公尺所需的融冰热能，全球平均要12瓦特，只要每平方公尺有一瓦特的不平衡量、累积12年，便可达成。
For the purpose of the research and development of automatic balance system for rigid rotors , the dissertation deals with the measuring method of the unbalance signal , the design of automatic balance equipment and the strategy of automatic balance 本文以研究开发刚性转子的自动平衡系统为目的，对不平衡量测量、自动平衡装置设计及其自动平衡策略展开了研究。
Unbalanced vibration signal of double - shaft rotating system with little rotating - speed difference is a composite signal called " beat " , how to separate two rotors " unbalanced weight from " beat " is the key of balancing for this rotating system 微速差双转子系统的不平衡振动信号是个拍振，如何从复杂的拍振信号中，分离出内、外转子各自的不平衡量，一直是该类转子动平衡的难点。
In order to make it possible that unbalance of the nonlinear rotor system may be identified online , the expression of nonlinear oil film force is improved , in which the three - order polynomial coefficients may be evaluated based on the journal orbit 因此，在进行不平衡量在线识别或无试重动平衡时，如果采用不变的轴承动力系数或仅仅是随着转速变化的轴承动力系数，那么识别结果就会产生较大的误差。
However , there are no efficient and applicable methods available up till now . the paper is designed to do some preliminary theoretical research on transient balancing based on the previous achievements and seek one kind of methods of transient balancing 本文是在前人研究的基础上所做的初步探索，旨在对转子瞬态动平衡作一理论上的研究，寻求一种比较好的让转子在瞬态运转状态下提取不平衡量的方法。
But in fact , it is difficult for a rotor to steadily and nicely rote at a certain speed . people have been expecting to identify the unbalance quickly and exactly with the information obtained from the rotors operating at unstable speed 而实际当中，转子很难准确稳定在一个转速下运行，人们一直希望能通过转子在非稳定转速运转状态下获得的振动信息，快捷的确定转子的不平衡量，即瞬态平衡，但目前尚未有成熟可行的办法。
To restore balance , that same number of gram - centimeters must be added to the assembly 180 degrees away . the balancing process , then , involves determining the number of gram - centimeters to be compensated for , and locating the proper angular position at which to add such compensation 恢复平衡需要将一定数量的不平衡量(克?厘米)加在转子固有不平衡量的相反位置上，故平衡的过程涉及不平衡量大小的补偿值的决定，及补偿值的正确定位。
( 3 ) on the basis of analyzing the trait of the unbalance signal , the dissertation brings forward the signal processing flow accordingly , the sampling and digital processing of the signals are described and the calculation of the rotate velocity and the fast computing method of the unbalance are presented ( 3 )在分析不平衡信号特征的基础上，设计了信号处理流程，介绍了振动信号的采样以及数字处理，研究了转速的测算以及不平衡量的快速计算方法。
