A
Hello, I am new to reliability and I am trying to define test time for 2 AC motors with 0 failures, demonstrated reliability of 0.9 and CL of 0.9. I do not have history data for the Weibull shape parameter, so I assumed 3, because my plan is to increase the duty 28.8 times and this will lead to wear out failures eventually.
The time the reliability is demonstrated for is 26280 hours (3 years). I calculated that if tested at normal stress level the test time should be 58317 hours. With the linear acceleration factor for the duty of 28.8, the test time would become 2025 hours. Is that correct? Or my line of thinking is totally wrong?
My next intention is to combine the increased duty with increased load (deliberately slowing the shaft) and I am not sure how to go about that. I'd appreciate any help.
The time the reliability is demonstrated for is 26280 hours (3 years). I calculated that if tested at normal stress level the test time should be 58317 hours. With the linear acceleration factor for the duty of 28.8, the test time would become 2025 hours. Is that correct? Or my line of thinking is totally wrong?
My next intention is to combine the increased duty with increased load (deliberately slowing the shaft) and I am not sure how to go about that. I'd appreciate any help.