Hybrid Method in the Reliability Allocation in an Industry-a Review.

Abstract

A system`s reliability during the early stage of design is an important issue for consideration. For any engineering system to be of standard it must meet certain reliability goals. These reliability goals can be achieved by assigning reliability requirements of individuals' subsystem to obtain complete system reliability. These reliability allocation to be considered based on engineering factors appear more practical functional and crucial at the early stage of design and development of items. In this paper we shall be considering the factors of influence approach under the hybrid method. These factors of influence affecting system reliability are complexity/time, the environment, cost, state-of-the-art and criticality of failure. This method aims at exposing each factor of influence and how each affects the reliability of overall system if not properly taken into consideration at various industries.Copy Right, IJAR, 2018,. All rights reserved. …………………………………………………………………………………………………….... Introduction:-The reliability of any system is most crucial and cannot be over-emphasized as lives and property depends in the satisfactory functionality of any system over specified conditions and period of time.The value of reliability depends on the reliability on both the reliability of a component and its corresponding position in the system. Reliability allocation is a decisive step in product design and development in assigning requirements to individual subsystems. These requirements are obtainable and agreed upon by each design group at various level and location. For a system to be designed for a targeted reliability, a reliability goal must be set putting in consideration its system`s behaviour, failure effect and order of improvement (Yadav, 2014).Other importance for setting reliability goals are to map out improvement avenues on the basics of real potential or crucial information for the reliability improvement. The focus of reliability allocation is to allocate the target reliability to be equal to all the subsystem or components. (Ebeling, 2008).Reliability Allocation is a tactical task during system design and development process of any engineering system. Due to its delicate nature in application at the early stage of the design some factors have to put into check in order to obtain the specified target level of reliability desired. This brings about the implementation of adequate reliability allocation method where the target reliability allocation method where the target reliability system is carefully allocated its constituent subsystem appropriately. (Sriramdas, 2014). Kim et al (2013), proposed a method that