The Variation Coefficient Method for Reliability Sensitivity Analysis of Cylindrical Helical Spring
For mechanical reliability design with more random variable parameters, if the parameters are queued with their impact on the sensitivity of mechanical reliability, which will be as random variables with relatively high impact, while low-impact will be determined variables, thus would simplify reliability analysis due to the random variable number reduced. With cylindrical helical spring as an example, applying the variation coefficient method, the reliability sensitivity calculation of shear stress and deformation is discussed, and the impact on the reliability of cylindrical helical spring by changing the random variables is also studied. Using the variation coefficient method we can obtain the reliability sensitivity of cylindrical helical spring quickly and accurately, which provides a theoretical basis for the reliability design of cylindrical helical spring, and has greatly improved the reliability analysis efficiency of cylindrical helical spring.
F. C. Liu and L. Geng, "The Variation Coefficient Method for Reliability Sensitivity Analysis of Cylindrical Helical Spring", Applied Mechanics and Materials, Vols. 55-57, pp. 285-290, 2011