Simulation, animation, and analysis of design disassembly for maintainability analysis

Abstract

Designing mechanical systems for efficient disassembly improves their maintainability. Issues related to design disassembly for maintainability analysis of an evolving mechanical system design are discussed. Procedures and methodologies for the identification of disassembly sequence, animation of human technicians in performing the disassembly sequence, tool selection. time and cost analysis. and human factors analysis of the disassembly sequence are presented. Their software implementation in a maintainability analysis workspace is described and illustrated using a maintenance task example.

A learning algorithm based estimation method for maintenance cost of product concepts

“…This approach is also useful for prediction of failures. Vujosevic, Raskar, Yeturkuri, Jothishankar, and Juang (1995) have evaluated the maintainability of systems on the basis of cost of assembly/disassembly. Balanchard, Verma, and Peterson (1995); Cunningham and Cox (1972) have evaluated the maintainability of mechanical systems in terms of Mean Time To Repair (MTTR) by considering time taken in disassembly, assembly, localization and isolation of least replaceable components.…”

“…Maintainability attributes for electronic products, in general, are identified and they are referred as attributes ascribed to the characteristics of product maintainability. Identified maintainability attributes (Paasch & Ruff, 1997;Takata, et al, 1995;Tarelko, 1995;Utez, 1983;Vujosevic, et al, 1995;Wani & Gandhi, 1999) and their definitions Table 2. They are also estimated by an appropriate qualitative or quantitative sense as shown in Table 3.…”

Resource selection ontologies in support of a recipe-based factory design methodology

“…Research into product design methods has led to the development of design methods such as Design for Manufacture (Stoll, 1986, Scarr, 1986, Kobe, 1990, Boothroyd and Dewhurst, 1986; Design for Assembly (Boothroyd and Dewhurst, 1986), Design for Disassembly and Recyclability (Kuo et al, 2001), Design for Maintainability (Vujosevic et al, 1995), among others. Most of these methods consist of a set of sequential processes which need to be realised for optimal design output.…”

A hierarchical approach on assembly sequence planning and optimal sequences analyzing

“…design for assembly (DFA), design for disassembly (DFD), and design for manufacturing (DFM), etc. [2][3][4][5][6][7]. De Lit et al [8] designed a systematic assembly-oriented product family representation method, in which a flexible and synthetic assembly modeling approach was proposed based on the concepts of functional entities and generic components.…”