Author:
Harbhinder Singh
Journal Name: International Journal on Emerging Technologies 8(2): 40-42, (2017)
Address:
University Institute of Engineering and Technology, Panjab University, Chandigarh, India.
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Whole-body vibration (WBV) is a significant occupational hazard for agricultural tractor operators, particularly during prolonged field operations. Continuous exposure to vibration adversely affects operator comfort, productivity, and long-term musculoskeletal health. This review critically examines published literature on WBV characteristics in agricultural tractors, vibration measurement standards, health implications, and vibration mitigation strategies with special emphasis on seat suspension systems and intelligent control approaches. A structured literature selection methodology was adopted to analyze experimental investigations, analytical modeling techniques, and modern semi-active control strategies. The review highlights that conventional passive suspensions are insufficient under varying field conditions, whereas intelligent semi-active systems, especially fuzzy logic–based controllers, demonstrate superior vibration attenuation. Key research gaps and future directions for improving tractor ride comfort and operator safety are identified.
Whole-body vibration (WBV) remains one of the most critical occupational health challenges faced by agricultural tractor operators. Tractors frequently operate on uneven terrain and typically lack primary suspension systems, resulting in direct transmission of ground-induced vibrations to the operator through the chassis and seat. Prolonged exposure to WBV has been linked to lower back pain, spinal degeneration, fatigue, and reduced operational efficiency [1-3]. Numerous experimental and epidemiological studies have confirmed that vibration levels experienced during common agricultural operations often exceed comfort and health limits recommended by international standards.
This review confirms that WBV remains a serious concern for agricultural tractor operators. Conventional passive seat suspensions are inadequate under variable field conditions. Intelligent semi-active seat suspensions, particularly those employing fuzzy logic control, demonstrate substantial potential for reducing vibration exposure and improving ride comfort. Future research should focus on long-term field validation and cost-effective implementation of intelligent suspension technologies.
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