Studies on Tractor Safety Frame (I)

Comparison of Overturning Tests and Pendulum Tests

Abstract

Overturning tests and pendulum tests of tractor fitted safety frame were carried, as a first step to propose design criteria of safety frame/cab.
On pendulum tests, frames deflected parmanently larger than on overturning tests, because input energy of pendulum test includes safety margin. From test results some points were pick uped as below. 1) Pendulum test provided by OECD TEST CODE can be applied for medium power class domestic tractors, 2) to design safety frame, mounting method is slso important, 3) structural analysis of safety frame needs to apply plastic analysis and dynamic of material.