Relative Reliability Risk Assessment Applied to Original Designs During Conceptual Design Phase

Abstract

Sys tem atic eval u a tions of con cept de signs in volve con sid er ing a range of cri te ria. In ter ac tion with in dus try sup ports the view that re li abil ity is a ma jor cri te rion among those con sid ered in prod uct de sign. Al though there are few meth ods to pre dict re li abil ity in the ini tial phases of de sign, most of them are only ap pli ca ble to adap tive de signs. In this pa per, we in tro duce the con cept of rel a tive re li abil ity risk as sess ment for orig i nal de signs, where in for ma tion avail abil ity is less, to cal cu late re li abil ity. We con sider the func tion struc tures of the prod uct un der con sid er ation and ap ply the an a lytic hi er ar chy pro cess us ing ver bal as sess ments for rel a tive mea sure ments. The weight as sign ing tech nique used is the en tropy method. a fi nal value of R 3 I (Rel a tive Re li abil ity Risk In dex) is cal cu lated and the idea of con cept func tion al ity graphs is pre sented. This method is ap plied on the ex am ple of seat sus pen sions for an off high way ve hi cle and the re sults are dis cussed. The find ings help to sort out the con cepts that are rel a tively strong in terms of re li abil ity.

Copras Based Comparative Analysis of the European Country Management Capabilities Within the Construction Sector in the Time of Crisis / Europos Valstybių Gebėjimo Valdyti Statybos Sektorių Krizės Laikotarpiu Palyginamoji Analizė Taikant Copras Metodą

“…This method was applied for deciding construction issues (Zavadskas 1987) also in other fi elds (Liu and Zhang 2011;Mamtani et al 2006;Li 2009;Ye 2010;Taheriyoun et al 2010;Hsieh et al 2010). The algorithm block diagram for entropy method is presented on Figure 1.…”

Experimental validation of the R³I design evaluation methodology

“…Complete details of the R 3 I methodology can be found in Mamtani and Green (2006) however the above brief description is judged sufficient to show how the theoretical and empirical structural validity stages of the validation square have been addressed in the development of the methodology. We can now proceed to show how the validation square has been applied to the development and testing of the R 3 I methodology.…”

Exploring product design quality control and assurance under both traditional and crowdsourcing-based design environments

“…Some factors [70][71][72][73][74][75] affect single and specific design quality attribute and the others influence one or more attributes of product design quality. 4 In order to better understand how to ensure the product design quality, this article takes into consideration control theories, 39 approaches, 41,43,44,47,48,52 principles 4 and tools. 76 Quality assurance is a set of policies through product life cycle to make sure the product can systematically meet the quality standards and thus leave an impression to the customers that companies provide high-quality products that are reliable, durable and dependable.…”

“…The extent to which a product is safe for its users Reliability 30,39,[42][43][44] Maturity The extent to which a product meets needs for reliability under normal operation Fault tolerance…”