Investigating the dynamic behavior of marine gear transmission system considering ship rolling motion

IF 7.1 1区工程技术 Q1 ENGINEERING, MECHANICAL

International Journal of Mechanical Sciences Pub Date : 2025-03-04 DOI:10.1016/j.ijmecsci.2025.110126

Yiwei Hu , Zheming Tong , Shuiguang Tong , Xianmiao Yang

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引用次数: 0

Abstract

The rolling motion of a ship caused by ocean waves during navigation exhibits non-linear characteristics and large amplitudes, significantly influencing the dynamic behavior of the marine gear transmission system (MGTS). This impact, often leading to considerable vibration and instability, has been largely overlooked in existing research. In this study, ship rolling motion under both regular and irregular waves is analyzed using wave spectrum analysis. The mathematical model of ship rolling is validated through hydrodynamic simulations and ship model experiments. An enhanced dynamic model of the MGTS, incorporating the actual rolling motion, is proposed. This model accounts for gears, shafts, and bearings, including meshing stiffness, transmission errors, nonlinear oil film forces in bearings, and other time-varying internal excitations. The findings reveal that ship rolling motion introduces additional stiffness, gyroscopic effects, and inertia force matrices into the dynamic model, leading to an increase of at least 23.81 % in the response amplitude of the MGTS. This amplifies torsional responses and induces quasi-periodic and chaotic phenomena. Among all wave parameters, the encounter frequency has the most significant impact on the dynamic response of the MGTS. Adjusting the ship's heading angle and navigation speed to align the encounter frequency within a specific range reduces the vibration displacement, velocity, and acceleration amplitudes of the MGTS, thereby improving stability. This study offers theoretical insights into the dynamic behavior of the MGTS during navigation, contributing to the optimization of marine transmission systems and operational strategies.

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来源期刊

International Journal of Mechanical Sciences 工程技术-工程：机械

CiteScore

12.80

自引率

17.80%

发文量

769

审稿时长

19 days

期刊介绍： The International Journal of Mechanical Sciences (IJMS) serves as a global platform for the publication and dissemination of original research that contributes to a deeper scientific understanding of the fundamental disciplines within mechanical, civil, and material engineering. The primary focus of IJMS is to showcase innovative and ground-breaking work that utilizes analytical and computational modeling techniques, such as Finite Element Method (FEM), Boundary Element Method (BEM), and mesh-free methods, among others. These modeling methods are applied to diverse fields including rigid-body mechanics (e.g., dynamics, vibration, stability), structural mechanics, metal forming, advanced materials (e.g., metals, composites, cellular, smart) behavior and applications, impact mechanics, strain localization, and other nonlinear effects (e.g., large deflections, plasticity, fracture). Additionally, IJMS covers the realms of fluid mechanics (both external and internal flows), tribology, thermodynamics, and materials processing. These subjects collectively form the core of the journal's content. In summary, IJMS provides a prestigious platform for researchers to present their original contributions, shedding light on analytical and computational modeling methods in various areas of mechanical engineering, as well as exploring the behavior and application of advanced materials, fluid mechanics, thermodynamics, and materials processing.