Modal Analysis of Gearbox Housing with Applied Load

Weis, Peter; Kučera, Ĺuboš; Pecháč, Peter; Močilan, Martin

doi:10.1016/j.proeng.2017.06.164

Cited by 43 publications

(22 citation statements)

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“…Steel tipped impact hammer used as exciter and accelerometer act as a response detector. Peter Weis [5] et.al was aimed to compute first 20 natural frequencies and its corresponding mode shapes of gearbox housing under pre-stressed condition in ANSYS workbench.Ashwani kumar [6] et.al has performed the modal analysis of heavy truck gearbox with four different materials. Gear defects, transmission error and load fluctuations are the foremost cause for vibration.…”

Section: Literature Surveymentioning

confidence: 99%

Determination of Natural Frequencies of Spur Gear in Portal Axle Gearbox

2019

IJITEE

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Portal axle is introduced to avoid damage of the vehicle bottom portion while it is running on off-road condition by providing additional ground clearance to the vehicle. Since the ground clearance is achieved through gear train arrangement, the operating frequency of the gear shouldn't match with its natural frequency. This work aims to predict the natural frequencies and modes shapes of the gear train with three types of gear arrangements. The effect of natural frequency also studied with three different gear materials such as steel, CI andAl alloy. Gear trains are modeled in Solidworks 2017 and analyzed in well-known FEM software ANSYS workbench 16.0. First six natural frequencies and corresponding mode shapes are also obtained. FEM results are compared with operating frequency of the gear.

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Section: Literature Surveymentioning

confidence: 99%

Determination of Natural Frequencies of Spur Gear in Portal Axle Gearbox

2019

IJITEE

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“…El análisis modal usualmente se ha realizado en aplicaciones mecánicas con materiales metálicos [13][14] [15]. Sin embargo, no se encuentra suficiente información sobre su uso en materiales compuestos de matriz polimérica reforzados con fibras naturales [16].…”

Section: Resumo-neste Trabalho Uma Análise Modal Foi Aplicada Em Um Munclassified

Análisis modal de material compuesto de resina bioepoxy/fibra de fique

2018

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Resumen-En este trabajo se aplicó un análisis modal sobre un material compuesto de resina bioepoxy/fi bra de fi que, utilizando simulación (Elementos Finitos), experimentación y modelamiento analítico, conociendo la desviación entre cada uno de los métodos de solución. El material fue elaborado empleando una resina bioepoxy y fi bras de fi que en distribución de tejido bajo la técnica de manufactura de infusión en vacío. Se realizaron pruebas de tensión al material compuesto según normativa ASTM D3039/D3039M para obtener propiedades mecánicas que permiten el desarrollo del modelo matemático y simulación y análisis de microscopia electrónica de barrido, para observar la adhesión entre la fi bra y la matriz. El análisis modal experimental se realizó por medio de la medición de la respuesta en frecuencia (FRF) bajo la Norma ISO 7626-2. Para el modelamiento analítico se utilizó la ecuación de Euler-1 Producto derivado del proyecto de investigación "Caracterización morfológica-mecánica de materiales compuestos reforzados con bras de que del departamento de Santander-Colombia. utilizando la técnica de microscopia electrónica de barrido (SEM), el ensayo de impacto péndulo "charpy", el ensayo de tracción, el ensayo de exión, el ensayo de dureza brinell y la respuesta en frecuencia (FRF)".

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“…In addition, vibration and noise reduction can be achieved by manipulating the dynamic characteristics of the exterior body with additional damping material [12][13][14]. The results show that stiffness and mass are two factors that affect the actual attenuation of the locally resonant damping structural exterior body.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation analysis of a PGR exterior body structure considering vibroacoustic characteristics

Ji¹,

Wang²,

Wang³

et al. 2021

J. vibroeng.

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Previous studies have attempted to identify weak links in the dynamic characteristics of the planetary gear reducer (PGR) exterior body structure (EBS). Through numerical simulation, these studies analyzed the modals and natural frequencies and the vibration types of each order of the EBS. However, these scholars have never focused on the main factors affecting the dynamic characteristics of the EBS of this subject. This study in the topic has analyzed the vibroacoustic characteristics of an EBS and optimized its design using numerical simulation. Herein, the contribution of the vibration transfer path from the excitation points on the exterior body to the machine foot is emphatically revealed, and the influences of the main structural parameters on the transfer characteristics are discussed. An optimal EBS for a PGR with lower acoustic vibrations is designed in detail, and a composite EBS with damping vibration attenuation and acoustic absorption is proposed. The radiation acoustic characteristics without acoustic protection and damping materials are analyzed. These research results are implemented in order to realize the dynamic characteristics, transmission, and radiation acoustic characteristics as objects of optimization, and the structural design parameters of the PGR exterior body are deeply optimized using dynamic modification and sensitivity analysis. This topic focuses on the vibroacoustic coupling of EBS in stationary fluid and average flow field, based on the analysis method of theoretical modeling and numerical calculation, the EBS dynamic response and vibroacoustic characteristics under the action of frontal excitation external acoustic flow field are studied, which will be beneficial to explore the comprehensive optimization design of GPR dynamic and vibroacoustic properties.

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Modal Analysis of Gearbox Housing with Applied Load

Cited by 43 publications

References 0 publications

Determination of Natural Frequencies of Spur Gear in Portal Axle Gearbox

Determination of Natural Frequencies of Spur Gear in Portal Axle Gearbox

Análisis modal de material compuesto de resina bioepoxy/fibra de fique

Numerical simulation analysis of a PGR exterior body structure considering vibroacoustic characteristics

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