Technical Paper
Accelerated Fatigue Life Test of Domestic Midi Bus's Front Suspension Springs
2007-08-05
2007-01-3646
In this paper, first of all, after load distribution of the front and rear axles of domestic midi bus have been measured, force on the parabolic springs of the front axle was calculated. Level of the good, middle and bad roads of Adana city in south of Turkey were determined and strain and displacement data have been recorded from connected strain-gage and LVDT sensors on the front axle parabolic springs of the midi bus. Test mechanism of the front axle suspension system connected chassis like midi bus was assembled in the laboratory. Recorded road roughness displacement, strain, and brake force strain data of the parabolic spring were processed by LMS Tecware, n-code ICE-flow 4.0 and special written computer program for this accelerated life cycle project. In addition to this, rainflow analysis, cumulative damage values, appending brake signals data in these different roads and every road damages have been calculated.