| dc.description.abstract | Today’s industry, reliability is an essential and inevitable issue during the earlier stage’s design process, medium term’s manufacturing, and the later part’s maintenance, repair, and load assignments. All engineers endeavor to raise product’s reliability and enhance its availability and extension of life in order to make profits and competitiveness to theirs companies. Unequal strength shared-load system which performs normal at least k of the total n units via the shared loads among the working period is a good stratagem to the later stage promoting reliability.
The load assignments focused on mechanical fatigue mechanism during the whole working stage are investigated in this study. In the front of this thesis, the unequal strength shared-load system’s reliability is derived from the conditional probability method by using dynamic (e, c, n) model and Monte-Carlo simulation. Then, study extends to the discussion and presents examples of load assignment and adjustment: including three policies: (1) Average allotment policy, (2) Dr. Wang’s policy by requiring all units failed simultaneously (equivalent hazard rate policy), and (3) Able capability invites laboriousness policy. | en_US |