A Synchronous Holo-Balancing Method for Flexible Rotors Based on the Modified Initial Phase Vector

Lei, Zihao; Chen, Hongming; Wen, Guangrui; Feng, Kai; Liu, Zheng; Yan, Ruqiang; Chen, Xuefeng

doi:10.1016/j.inffus.2022.09.013

Cited by 6 publications

(1 citation statement)

References 27 publications

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“…Yao et al [25] have proposed a dynamic balancing method for a multi-speed flexible rotor with dual-objective optimization by using a genetic algorithm to minimize the maximum residual vibration as the optimization objective. Lei et al [26] have proposed the concept of an equivalent rotating frequency circle, expressed the modified initial phase vector linearly as the unbalance of the flexible rotor, and realized the balance of the high-speed flexible rotor by using the synchronous holographic balance method, which improved the dynamic balance accuracy. Morton [27] has pointed out that the relationship between the unbalance of the rotor and the vibration response is the transfer function related to the speed, which is also the essence of the influence coefficient.…”

Section: Introductionmentioning

confidence: 99%

Research on dynamic balance optimization method of flexible rotor based on GWO

Zhang,

Li,

Han

et al. 2024

Meas. Sci. Technol.

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Aiming at the problem that the dynamic balance process of a flexible rotor needs to start and stop frequently to add test weight, which is time-consuming and labor-consuming, and the balance accuracy is difficult to guarantee, a dynamic balance optimization method of flexible rotor based on Grey Wolf Optimizer(GWO) is proposed. In this paper, a virtual prototype model is established based on a power turbine rotor for a certain type of turboshaft engine, and a rotor test platform is built. The transfer function is used to find the relationship between unbalance and vibration response, and the equilibrium equations are established to solve the problem. In the process of solving the problem that the equilibrium equations are mostly contradictory, GWO is used to solve the contradictory equations to obtain the optimal counterweight scheme at the full working speed of the rotor. The results show that the method proposed in this paper eliminates the tedious test weight process of traditional dynamic balance, and the vibration reduction effect is better than the conventional on-site dynamic balance. The work of this paper can improve the efficiency and accuracy of flexible rotor dynamic balance and provide technical reference for the vibration control of aero-engine.

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Section: Introductionmentioning

confidence: 99%