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Citation:
　Di Huang,Tiejun Yang,Zhigang Liu,et al.Synchrophasing Vibration Control of Machines Supported by Discrete Isolators[J].Journal of Marine Science and Application,2019,(2):195-204.[doi:10.1007/s11804-019-00093-7]
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Synchrophasing Vibration Control of Machines Supported by Discrete Isolators

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Title:
Synchrophasing Vibration Control of Machines Supported by Discrete Isolators
Author(s):
Di Huang1;  Tiejun Yang1;  Zhigang Liu1;  Michael J. Brennan2;  Xinhui Li1
Affilations:
Author(s):
Di Huang1;  Tiejun Yang1;  Zhigang Liu1;  Michael J. Brennan2;  Xinhui Li1
1 College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China;
2 Departamento de Engenharia Mecânica, UNESP, St. Paul 03001-000, Brazil
Keywords:
Discrete supported machines; Vibration isolation; Raft; Synchrophasing control; Different forms of excitations
分类号:
-
DOI:
10.1007/s11804-019-00093-7
Abstract:
This paper describes an analytical investigation into synchrophasing, a vibration control strategy on a machinery installation in which two rotational machines are attached to a beam-like raft by discrete resilient isolators. Forces and moments introduced by sources are considered, which effectively represent a practical engineering system. Adjusting the relative phase angle between the machines has been theoretically demonstrated to greatly reduce the cost function, which is defined as the sum of velocity squares of attaching points on the raft at each frequency of interest. The effect of the position of the machine is also investigated. Results show that altering the position of the secondary source may cause a slight change to the mode shape of the composite system and therefore change the optimum phase between the two machines. Although the analysis is based on a one-dimensional Euler-Bernoulli beam and each machine is considered as a rigid-body, a key principle can be derived from the results. However, the factors that can influence the synchrophasing control performance would become coupled and highly complicated. This condition has to be considered in practice.

References:

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Memo

Memo:
Received date:2018-10-11;Accepted date:2019-3-25。
Corresponding author:Tiejun Yang
Last Update: 2019-07-06