Title: Optimum operational conditions of mining trucks based on the vibrational health risk of the driver
Authors: Mohammad Javad Rahimdel; Mehdi Mirzaei
Addresses: Department of Mining Engineering, Faculty of Engineering, University of Birjand, Birjand 9717434765, Iran ' Department of Mechanical Engineering, Sahand University of Technology, Tabriz 5331811111, Iran
Abstract: This paper aims to propose the optimum payload and speed limit and load geometry for a heavy duty 60-ton truck in Sungun Copper Mine of Iran as a case study to keep the vibrational health risk at the lowest possible level while maintaining the production rate at the planned level. The root mean square (RMS) of vibrations at different operational conditions was obtained. Then, an optimisation problem was developed to propose the optimum payload and truck speeds at various conditions. The optimum payload was 65 tons. The optimum speed of loaded truck was obtained in the range of 30-35 km/h at good roads and 15 km/h at poor roads. Also, the optimum speed range of empty truck was in the range of 15-20 km/h. Uniform payloads and materials accumulated on the left side can have the lowest and highest effects on the vibrational health risk, respectively.
Keywords: mining truck; WBV; whole body vibration; optimisation; regression analysis.
International Journal of Heavy Vehicle Systems, 2021 Vol.28 No.2, pp.226 - 241
Received: 28 Mar 2018
Accepted: 24 Aug 2018
Published online: 11 Jun 2021 *