Dynamic analysis of spur gear with backlash using ADAMS

Ambaye, Getachew A.; Lemu, Hirpa G.

doi:10.1016/j.matpr.2020.09.309

Cited by 16 publications

(6 citation statements)

References 16 publications

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“…The contact force of the involute gear drive and cycloid-pin gear drive is defined by impact function-based contact. It includes the elastic force generated by the two components cutting into each other and the damping force generated by the relative velocity [24,25]. The impact function expression is where q is the distance between two contact objects, q is the velocity between two objects in contact, q 1 is the threshold value of the impact function, K is the stiffness coefficient, e is the impact force index, C max is the maximum damping coefficient, and d is the distance traveled when the damping reaches the maximum value.…”

Section: Constraint Of the Rv Modelmentioning

confidence: 99%

Effect of Multifactor Interaction on the Accuracy of RV Reducers

Wang

Pan

et al. 2023

International Journal of Rotating Machinery

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The rotary vector (RV) reducer is one of the widely used mechanical components in industrial systems, specifically in robots. The stability of the transmission performance of the RV reducer is crucial for the efficient operation of industrial equipment. The manufacturing and assembly errors of various components of the RV reducer during the production process are important factors that affect the transmission performance. However, in previous research work, the coupling effect of multiple errors on the transmission accuracy of RV reducer has not been fully considered. Furthermore, a vague relationship between system transmission errors and various errors also has not been thoroughly discussed, which presents a challenge to analyze and optimize the errors of components using the simulation technology of virtual prototype. Therefore, we propose a novel approach to use the response surface method (RSM) to investigate the transmission accuracy of RV reducer. Firstly, based on the constructed virtual prototype of RV reducer, the individual effects of different original errors on the overall transmission error are analyzed. Secondly, a response surface approximation model using RSM is constructed to analyze the effect of multiple error interactions on the transmission accuracy of the RV reducer, and the potential functional relationship between multiple error factors and the overall transmission error is also explored. Finally, the authenticity of the proposed approach is verified by setting up some comparative experiments. This study provides a reference for the efficient analysis and optimization of the transmission accuracy of RV reducers.

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Section: Constraint Of the Rv Modelmentioning

confidence: 99%

Effect of Multifactor Interaction on the Accuracy of RV Reducers

Wang

Pan

et al. 2023

International Journal of Rotating Machinery

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“…Garambois et al (2017) used an iterative spectrum method to analyse the multi-physical coupling between periodic gear meshing excitation and upstream and downstream pulsating loads. Ambaye and Lemu (2021) used MSC ADAMS software to establish gear transmission model and analyse dynamic behaviour.…”

Section: Introductionmentioning

confidence: 99%

Improved method for analysing the dynamic response of gear transmission systems

Liu

et al. 2022

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PurposeThe purpose of this paper is to propose an improved method which can shorten the calculation time and improve the calculation efficiency under the premise of ensuring the calculation accuracy for calculating the response of dynamic systems with periodic time-varying characteristics.Design/methodology/approachAn improved method is proposed based on Runge–Kutta method according to the composition characteristics of the state space matrix and the external load vector formed by the reduction of the dynamic equation of the periodic time-varying system. The recursive scheme of the holistic matrix of the system using the Runge–Kutta method is improved to be the sub-block matrix that is divided into the upper and lower parts to reduce the calculation steps and the occupied computer memory.FindingsThe calculation time consumption is reduced to a certain extent about 10–35% by changing the synthesis method of the time-varying matrix of the dynamics system, and the method proposed of paper consumes 43–75% less calculation time in total than the original Runge–Kutta method without affecting the calculation accuracy. When the ode45 command that implements the Runge–Kutta method in the MATLAB software used to solve the system dynamics equation include the time variable which cannot provide its specific analytic function form, so the time variable value corresponding to the solution time needs to be determined by the interpolation method, which causes the calculation efficiency of the ode45 command to be substantially reduced.Originality/valueThe proposed method can be applied to solve dynamic systems with periodic time-varying characteristics, and can consume less calculation time than the original Runge–Kutta method without affecting the calculation accuracy, especially the superiority of the improved method of this paper can be better demonstrated when the degree of freedom of the periodic time-varying dynamics system is greater.

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“…Pitting is a common material failure which usually occurs on a gear tooth contact surface. Thus, backlash is usually used to reduce the noise and vibration on the gear tooth [12][13]. These damages would negatively affect the systems in which these failed gears are present and may bring these systems to a halt or cause severe damage to the machines, subsequently incurring significant economic losses.…”

Section: Introductionmentioning

confidence: 99%

Rinser Machine and the Dynamics-based Failure Analysis for Spur Gear Fault Detection: A Forensic Review

Orhevba

Salawu

Ajayi

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Gear fault detection and its severity is essential for analyzing the availability, maintainability and reliability of rinser machines. The occurrence of multiple failures of gears and their analysis is becoming more challenging, thereby causing the increased unavailability of rinser machines. This study reviewed the rinser machine and its various advantages and disadvantages, including the problems associated with the machine. More so, various types of failures associated with the spur gears were studied, and it was established that the detection and the diagnosis of gear faults would inform a maintenance planner on scheduled maintenance. Thus, the absence of failure detection will cause uncontrolled machine breakdown and, consequently, result in unsafe operation as well as a loss of productivity. The study concludes and recommends grey cast iron as alternative material that could reduce chemical failure and failure resulting from fatigue.

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Dynamic analysis of spur gear with backlash using ADAMS

Cited by 16 publications

References 16 publications

Effect of Multifactor Interaction on the Accuracy of RV Reducers

Effect of Multifactor Interaction on the Accuracy of RV Reducers

Improved method for analysing the dynamic response of gear transmission systems

Rinser Machine and the Dynamics-based Failure Analysis for Spur Gear Fault Detection: A Forensic Review

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