The most of the serious accidents in agriculture are caused by the tractor roll-over and in order to reducing and limiting the number of these work accidents, manufacturers must equip the tractor with a ROPS and a seat belt anchorage according to the European Community directive. In this field of high interest for the workers’ safety, we propose to analyse the injuries caused by the overturning of the tractor and the effectiveness operator restraint systems, by means of the multibody-FEM code MadymoTM (MAthematical DYnamic MOdels), produced by TNO Automotive Safety Solutions (NL). To our knowledge, a similar approach is used for the first time in the context of accidents related to the utilisation of agricultural machines. In this paper we analysed the roll-over dynamics of a wheeled tractor with narrow track having the structure infinitely rigid, but in the simulation model the behaviour of three type of soil having different stiffness values were compared. The aim of the study is to analyze how the soil mechanical characteristics affect the simulation of the accident dynamics, comparing the values both of the cinematic parameters and of the tractor biological injuries.
Improvement of Tractor Operator Safety by Multibody-FEM Techniques: The Influence of Soil Modelling
PASCUZZI, Simone;
2010-01-01
Abstract
The most of the serious accidents in agriculture are caused by the tractor roll-over and in order to reducing and limiting the number of these work accidents, manufacturers must equip the tractor with a ROPS and a seat belt anchorage according to the European Community directive. In this field of high interest for the workers’ safety, we propose to analyse the injuries caused by the overturning of the tractor and the effectiveness operator restraint systems, by means of the multibody-FEM code MadymoTM (MAthematical DYnamic MOdels), produced by TNO Automotive Safety Solutions (NL). To our knowledge, a similar approach is used for the first time in the context of accidents related to the utilisation of agricultural machines. In this paper we analysed the roll-over dynamics of a wheeled tractor with narrow track having the structure infinitely rigid, but in the simulation model the behaviour of three type of soil having different stiffness values were compared. The aim of the study is to analyze how the soil mechanical characteristics affect the simulation of the accident dynamics, comparing the values both of the cinematic parameters and of the tractor biological injuries.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
