Dynamic Mechanical Analysis of Automotive Gearbox Casing

Zhao, Guang-Yao; Fu, Peng; Zhou, Shu Wen; Tong, Shan Ge

doi:10.4028/www.scientific.net/amr.230-232.539

Cited by 4 publications

(2 citation statements)

References 1 publication

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“…The dynamic characteristics of mechanical structures mainly depend on their modal parameters, such as natural frequencies and mode shapes [16]. Modal analysis, which determines the vibration properties of the structure, serves as the foundation for simulating seismic conditions for box-type substations.…”

Section: Modal Analysismentioning

confidence: 99%

Performance Optimization Design Study of Box-Type Substations Subjected to the Combined Effects of Wind, Snow, and Seismic Loads

Guo,

Fang,

Wang

et al. 2024

Applied Sciences

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As a pivotal node in both urban and rural power grids, the box-type substation not only serves the functions of power conversion and distribution but also need to provide structural support and environmental adaptability. However, deficiencies in strength, stiffness, or vibration characteristics may lead to vibration and noise issues, and extreme environmental changes can pose risks of structural damage. This study aims to verify and optimize the seismic resistance and environmental adaptability of box-type substations through finite element simulation methods. Using SOLIDWORKS, a three-dimensional model of the box-type substation was constructed, and static and dynamic analyses were conducted using Ansys Workbench to comprehensively evaluate the dynamic response of the box-type substation under wind, snow loads, and seismic action. Through iterative simulations and a comparison of multiple design solutions, the structural optimization of the substation was achieved. The optimized structure balances strength and stiffness, significantly reducing the weight of the substation body, with the wall thickness reduced by 60%. Additionally, the phenomenon of stress concentration on the side walls was eliminated, ensuring that the equivalent stress is below the material yield strength. This research provides methods and empirical results for enhancing the performance and reliability of box-type substations under seismic conditions, confirming the feasibility of a lightweight design, while ensuring structural safety.

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Section: Modal Analysismentioning

confidence: 99%

Performance Optimization Design Study of Box-Type Substations Subjected to the Combined Effects of Wind, Snow, and Seismic Loads

Guo,

Fang,

Wang

et al. 2024

Applied Sciences

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“…A tractor gearbox can be regarded as a vibration system, and the reason for the vibration and strong noise of the gearbox comes from the sum of each excitation force applied to this system. The dynamic characteristics of mechanical structure mainly depend on its natural frequency, vibration mode and other modal parameters 20 . The natural frequency of the gearbox should stagger the inherent rotation frequency of the engine and the meshing frequency between the internal gear and the gear to improve the dynamic characteristics of the gearbox 21 .…”

Section: Static Analysis and Modal Analysismentioning

confidence: 99%

Finite element analysis and optimization of tractor gearbox body under various kinds of working conditions

Dong

et al. 2022

Sci Rep

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As the main component of the tractor gearbox, the box has the functions of shifting operation and carrying the cab, it also carries part of the framework function. If the strength, stiffness, or vibration characteristics of the box do not meet the allowable requirements, large vibration and noise may occur, and even there is the possibility of fracture in some limiting conditions. To solve this problem, according to the structural parameters of a gearbox, the three-dimensional model of the box was established by using the three-dimensional modeling software Creo. According to the dangerous degree of the transmission load when the tractor is working normally, three vehicle working conditions are selected: a round of suspension conditions, farm tool lifting conditions, and emergency turning conditions. In addition, according to the transmission ratio of each gear meshing inside the gearbox, two gear conditions are selected: gear condition one and reverse gear condition one. The forces of the box under these extreme conditions are analyzed. The static analysis and modal analysis of the tractor gearbox are carried out by using the Static Structural module of ANSYS Workbanch. The deformation, equivalent stress distribution, and modal vibration frequency of the gearbox are tested. The topology optimization method is used to improve structural defects and reduce box quality. The results show that the weight of the optimized box reduces by 8.44%, the deformation decreased by 15.89%, and the equivalent stress decreased by 18.34%. The strength and stiffness of the box are improved, the quality is lightweight, the waste of resources is reduced, and the heat dissipation performance and fracture resistance of the box are enhanced.

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Structural Strength Analysis of Gearbox Casing Based on ABAQUS

Tang

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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In order to improve the transmission accuracy, static and dynamic characteristics of the transfer gearbox of a test bench, a numerical model is built by finite element software ABAQUS to analyze its static characteristics. The static analysis under typical working conditions are investigated to obtain the stress and the strain, and then the static reliability of the structure is checked, which provides theoretical basis and guidance for the structural optimization design of the gearbox. The research shows that the gearbox structure is reliable and has greater space for structure optimization, which can improve the transmission accuracy and static characteristics.

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Dynamic Mechanical Analysis of Automotive Gearbox Casing

Cited by 4 publications

References 1 publication

Performance Optimization Design Study of Box-Type Substations Subjected to the Combined Effects of Wind, Snow, and Seismic Loads

Performance Optimization Design Study of Box-Type Substations Subjected to the Combined Effects of Wind, Snow, and Seismic Loads

Finite element analysis and optimization of tractor gearbox body under various kinds of working conditions

Structural Strength Analysis of Gearbox Casing Based on ABAQUS

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