Title: Life cycle cost model of remanufacturing-oriented retired engine product under uncertain conditions

Authors: Junli Shi; Fangli Shu; Zhongchi Lu; Mengmeng Ren; Huanhuan Xu

Addresses: School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian, China ' School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian, China ' School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian, China ' School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian, China ' School of Mechanical Engineering and Automation, Dalian Polytechnic University, Dalian, China

Abstract: The life cycle cost of retired engine product presents a high level of uncertainty due to the different working conditions, service time and damage status. This study proposed a life cycle cost model for remanufacturing-oriented engine product under uncertain conditions based on the theory of life cycle cost (LCC). In this model, the system boundary of the life cycle is established firstly, then the quantitative damage level of used product is defined, and next the cost calculation model in each life cycle stage is introduced, finally the nonlinear function model of life cycle cost with service time and damage level is established. The connecting rod of a retired engine is taken as the case study, the results demonstrate the validity of the proposed model, and the results can provide decision support for engine remanufacturing from the whole society resource consumption.

Keywords: remanufacturing; life cycle cost; LCC; uncertainty; damage level; service time; engine connecting rod.

DOI: 10.1504/IJMMS.2025.155738

International Journal of Mechatronics and Manufacturing Systems, 2025 Vol.18 No.4, pp.381 - 394

Received: 19 May 2022
Accepted: 25 Jun 2023
Published online: 12 Aug 2026 *

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