Mekanisk analyse av sittesele for vognkommandør

This report concerns mechanical analyses of a seating harness for the commander of the M577 armoured vehicle. The harness is mounted in the opening for the commander hatch of the NM196F3 vehicle. The task is commissioned by project 5026 at FLO, the Norwegian Defense Logistic Organization. The analyses are carried out by use of the Finite Element Method in combination with manual calculations. The program Solid Works Simulation is used for the FEA. The objective for the task is to find out what loads the harness will withstand and the results show that the limiting component is a shackle with a material of unknown quality. The recommendation is to replace this shackle with a certified shackle with a known working load that is coincident with the load capacity of the rest of the harness. The results of the calculations show that the rest of the components withstand a 12 kN vertical load.