Alternate Maintainability Evaluation Technique for Steering System of Used Automobiles

2nd International Conference on Engineering for Sustainable World

Onawumi, Ayodele^1 ; Udo, Mfon^2 ; Awoyemi, Elijah^3 ; Okokpujie, Imhade P.^2

Mechanical Engineering Department, Ladoke Akintola University of Technology, Ogbomoso, Oyo State, Nigeria^1

Mechanical Engineering Department, Covenant University, Ota, Nigeria^2

Mechanical Engineering Department, Ladoke Akintola University of Technology, Works and Maintenance Department, Osun State University, Osogbo, Nigeria^3

关键词: Design considerations;    Economic development;    Evaluation techniques;    Mean time to repairs;    Participatory approach;    Qualitative approach;    Repairable systems;    Technological system;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/413/1/012062/pdf
DOI  :  10.1088/1757-899X/413/1/012062

来源: IOP

【 摘 要 】

Automobile is an essential means of transporting people, goods and services which has impacted significantly on economic development of any nation. Maintainability and reliability in vehicles are design considerations that has the capacity to influence user's choice of owned vehicle for both private and commercial uses. Beyond the rigorous methods of evaluation maintainability of technological systems popular experience based opinion of operators of different makes of automobiles have proved to provide acceptable qualitative approach on critical decision making safe and moistenable vehicle. To demonstrate the application of participatory approach in maintainability structured questionnaires were developed and administered to operators (drivers and auto-mechanics) of selected vehicles (1997 models of Nissan Primera, Toyota Camry and Honda Accord) commonly used for private purposes in the study area. Prevailing system faults and the time to repair were determined and analysis were carried out to ascertain the significance of the result obtained which were also used to simulate some maintainability criteria of the steering system. From the result, Nissan Primera 1997 has the least Mean Time to Repair (MTTR) and Maximum Maintenance Time (Mmax) of 30.4 and 52.6 minutes respectively, followed by Toyota Camry 1997 with MTTR and Mmax of 39.9 and 128.9 minutes while Honda Accord 1997 has the highest MTTR and Mmax of 93.2 and 143.4 minutes respectively. This work has demonstrated the evaluation of maintainability based on popular opinion of operators the system from the consideration of maintainability of steering system.