A research on anti – vibration method for worker operating jackhammers nguyen van khang nguyen anh tuan

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The 1 st Academic Conference on Natural Science for Master and PhD Students From Cambodia 3 Laos 3 Vietnam 23 3 27 March 2010, Vientiane, Lao PDR A research on anti 3 vibration method for worker operating jackhammers Nguy¿n Anh Tu¥n 1* , TriÇu QuÑc LÙc 1 , NguyÅn V\x3n Khang 2 1 National Institute of Labour Protection 2 Hanoi University of Technology *Email address: anhtuanbhld@gmail.com INTRODUCTION Hand 3 held equipments or tools using in production such as chipping tools, jackhammers, grinders, chain saws, reveting guns, etc&, are usualy caused hight vibration and directly influenced to worker 9s health. Especially, it may be in their operation conduced to occupational disease as VWF 3 Vibration induced White Finger. This paper presents some research results on anti_vibration methods by dynamic damper combined together with anti-vibration gloves for worker who using and operating hand 3 held equipments or tools.

In that, it 9s put a great consideration of the chipping tools and jackhammers. This product can be applied to real working. I.

THE IMPACT OF JACKHAMMER VIBRATION ON WORKER - In VietNam, jackhammers using mining (stone-pit, coal mine) have hight vibration level over standard [1, 2]. Most of jackhhamers with label 7655, YO18 - China. ... more. less.

- Jackhammer vibration lead to many disease: vascular disorders ( VWF 3 Vibration induced White Finger) , peripheral neurological disoders, muscle - bone - joint injury, headache, alzheimer, ...<br><br> II. RESEARCH ON ANTI-VIBRATION METHOD The jackhammer is built dynamic model and differential equations of system. And then, simulation with: jackhammer with anti-vibration handle, jackhammer with anti-vibration gloves, jackhammer with dynamic damper, jackhammer with all of them.<br><br> Fig 1. Measurement, survey jackhammer

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