This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Command Arm Vibration Reduction for Golf Mowing Machine
Technical Paper
2021-01-1107
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The demands on improving the noise, vibration and harshness of the golf mowing machines are growing rapidly. Low frequency vibrations at the human touchpoints are one of the important factors leading to the discomfort of operators on these machines. In the present work, low frequency vibrations experienced by the operator of the golf mowing machine are reduced using finite element analysis (FEA) and validated by a physical test. Initially, testing observed high vibration at the command arm, where some of the operating controls are placed. FEA was carried out on a frame level assembly and the design was iterated to affect these vibration levels. The golf mowing machine considered in this work is powered by a gasoline engine, which is the source of excitation in the current scenario. The operational forces of the engine were measured by using blocked-force transfer path analysis at its mounts. The modal frequency response analysis used these calculated forces as an input excitation. The vibration levels predicted at the operator’s touchpoints through simulation showed a good match of the trend with the measured test response. The structural changes were done in simulation after studying modal participation factors for high vibration levels at a frequency of interest. Reductions in vibration levels at the command arm were validated through the test, which provided enhanced operator comfort.
Authors
Citation
Istalkar, D. and Hunt, K., "Command Arm Vibration Reduction for Golf Mowing Machine," SAE Technical Paper 2021-01-1107, 2021, https://doi.org/10.4271/2021-01-1107.Data Sets - Support Documents
Title | Description | Download |
---|---|---|
Unnamed Dataset 1 | ||
Unnamed Dataset 2 |
Also In
References
- 2002/44/EC 2002
- Sakthivel , A. , Sriraman , S. , and Verma , R. Study of Vibration from Steering Wheel of an Agricultural Tractor SAE Int. J. Commer. Veh. 5 2 2012 10.4271/2012-01-1908
- Ye , Shaogan , Liang , Hou , Zhang , Pandeng , Xiangjian , Bu , et al. Transfer Path Analysis and Its Application in Low-Frequency Vibration Reduction of Steering Wheel of a Passenger Vehicle Applied Acoustics 157 2020 107021 0003-682X https://doi.org/10.1016/j.apacoust.2019.107021
- Umbare , V. Agricultural Tractor's Footrest Vibration Reduction SAE Technical Paper 2013-26-0093 2013 https://doi.org/10.4271/2013-26-0093
- Bi , Z. Chapter 1 - Overview of Finite Element Analysis Bi , Z. Finite Element Analysis Applications Academic Press 2018 1 29 https://doi.org/10.1016/B978-0-12-809952-0.00001-7 9780128099520
- Kurowski , Paul M. Finite Element Analysis for Design Engineers SAE International 2004 1 4 978-0-7680-1140-1
- OptiStruct User’s guide
- 2020
- Moorhouse , A.T. , Elliott , A.S. , and Evans , T.A. In Situ Measurement of the Blocked Force of Structureborne Sound Sources Journal of Sound and Vibration 325 2009 679 685
- Elliott , J.W. , Meggitt , R. , and Moorhouse , A.T. Blocked Forces for the Characterisation of Structure Borne Noise Institute of Noise Control Engineering, Internoise and Noise-Con Congress and Conference Proceedings 250 1 2015 5798 5805
- Elliott , A.S. , Moorhouse , A.T. A Quarter Vehicle Transfer Path Analysis by In-Situ Measurements Proceedings of November 2012 Noise and Vibration: Emerging Methods 009 1 7 Sorrento, Italy 2012
- ISO 20270:2019