Question: 12.4 Perform quantitative criticality analysis on a bicycle brake lever. Input data: The brake lever has an expected life of 5 years. The bicycle reliability

12.4

Perform quantitative criticality analysis on a bicycle brake lever.

Input data:

The brake lever has an expected life of 5 years. The bicycle reliability engineer says the brake lever will have an estimated 0.5 failures in 5 years based on failure distributions, and so on.

There are two failure modes: cracking and bending. Cracking makes up 30% of the failures; bending makes up the other 70% of the failures. The probability of system loss for cracking is 60%, and for bending, is 10%.

Calculate the criticality for each potential failure mode and the overall criticality of the brake lever.

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