Non-inertial dynamic modeling and gear mesh characteristic analysis of planetary gear train system

IF 4.5 1区 工程技术 Q1 ENGINEERING, MECHANICAL Mechanism and Machine Theory Pub Date : 2024-10-01 DOI:10.1016/j.mechmachtheory.2024.105794
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引用次数: 0

Abstract

Floating offshore wind turbines experience periodical platform motions due to waves and currents, which intensify vibrations in wind turbine gearboxes. In these gearboxes, the gear mesh characteristics of the planetary gear train system (PGTS) are vulnerable to vibrations caused by platform motions. However, many PGTS models lack attention to gear mesh characteristics affected by platform motions. This study introduces a novel instantaneous multi-teeth contact model that integrates a loaded tooth contact analysis model with dynamic displacements. A rigid-flexible coupling dynamic model of PGTS that accounts for platform motions is established, and then an efficient iterative solution scheme is developed. The model is validated using the Finite Element Method, and gear mesh characteristics of PGTS are thoroughly analyzed. Simulation results show that resonance exacerbates dynamic gear meshing force and stiffness fluctuations, leading to significant deviations from static values. Platform motions disturb contact force distribution, increase peak forces and fluctuations, and pose a risk of tooth disengagement. The axial vibration frequencies and amplitudes of the ring gear tooth correlate with base motions, suggesting potential applications in gear mesh state monitoring.
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行星齿轮传动系统的非惯性动态建模和齿轮啮合特性分析
由于波浪和水流的影响,漂浮的海上风力涡轮机会经历周期性的平台运动,这加剧了风力涡轮机齿轮箱的振动。在这些齿轮箱中,行星齿轮传动系统(PGTS)的齿轮啮合特性很容易受到平台运动引起的振动的影响。然而,许多 PGTS 模型缺乏对受平台运动影响的齿轮啮合特性的关注。本研究引入了一种新颖的瞬时多齿接触模型,该模型集成了加载齿接触分析模型和动态位移。建立了考虑平台运动的 PGTS 刚柔耦合动态模型,然后开发了高效的迭代求解方案。利用有限元法对模型进行了验证,并对 PGTS 的齿轮啮合特性进行了深入分析。仿真结果表明,共振加剧了动态齿轮啮合力和刚度波动,导致与静态值的显著偏差。平台运动扰乱了接触力分布,增加了峰值力和波动,并带来了轮齿脱离的风险。环形齿轮齿的轴向振动频率和振幅与基座运动相关,这表明齿轮啮合状态监测具有潜在的应用价值。
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来源期刊
Mechanism and Machine Theory
Mechanism and Machine Theory 工程技术-工程:机械
CiteScore
9.90
自引率
23.10%
发文量
450
审稿时长
20 days
期刊介绍: Mechanism and Machine Theory provides a medium of communication between engineers and scientists engaged in research and development within the fields of knowledge embraced by IFToMM, the International Federation for the Promotion of Mechanism and Machine Science, therefore affiliated with IFToMM as its official research journal. The main topics are: Design Theory and Methodology; Haptics and Human-Machine-Interfaces; Robotics, Mechatronics and Micro-Machines; Mechanisms, Mechanical Transmissions and Machines; Kinematics, Dynamics, and Control of Mechanical Systems; Applications to Bioengineering and Molecular Chemistry
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