Fuzzy Reliability Design Based on Gamma and Normal Distribution

With considering lightening and safety of strength, integrations of both distributionpsilas density and functionpsilas density, the fuzzy reliability formulas about machine parts that forces are normal distribution, strengths are gamma distribution and subordinate is parabola of exponential k was gotten; First integral change was achieved according to initial data and function imported and extent of integrated, second the number result with VB program in the computer was achieved by using middle-points integral calculus and romberg integration. This program can be used in design of machine parts for rising up level of design.