Question

Problem: 14 pointsl Given the Reliability Block Diagram below of a system with 3 different components in series, each with a time to failure distribution and a baseline 3-year reliability, which is the current warranty period for the system Part A Weibull, shape β-2 R(3 years) 0.75 Part B Expon R(3 years) 0.70 Part C Exponential R(3 years) 0.80 1.1) Determine the system reliability at 3-year. Management wants to improve the reliability of this system and extend the warranty period to 5 years. Assume 8,760 hours usage per year. For each of the following strategies, determine the system reliability at 5-year 1.2) Replace Parts B and C with redesigned parts having failure rates 1/10th of the current failure rates. 1.3) Improve Part A scale parameter, η, by 50%.

please solve only 1.2 and 1.3

dont solve 1.1

thanks

Answer 1

Give head loss velationshtp by usingfollning eguah -t, 음.rsoende) 끊.(. 논·Etanowe9% TY tion tiction ) 113m t eh tante t 35m 214.81) 2(9.81) 0-1 Average ve Locity at point 2; s) η/4 (0.05%2

Reynold os ftoSt Pipe. . at t:15 Rel 。 (9991) VI (0.10) 1.13 8 x1o3 Renolds of second pit 138 x3