More Reliable Multi-Function Wood-Harvesting Machines In the Future?
Authors
P. G. Mellgren
P.Eng.; M.Sc, Mech. Eng. FERIC, Pointe Claire, Québec, Canada
Abstract
This paper explains why it has been difficult to get high mechanical availability with multi-function-machines. Simplified reliability theory is applied to demonstrate the relationship between Mean Time Between Failures of components and mechanical availability for machines of various complexities. The design engineer should reduce the number of components and find the right compromise between high reliability and low weight/low cost, thereby designing more reliable and cost-effective multifunction machines.
