Evaluation of engineering asset acquisitions in EAM based on DEA

This paper focuses on the process of acquisition of the engineering asset life cycle management and uses DEA (Data Envelopment Analysis) Model to evaluate the alternatives (decision making units, DMU). Firstly, based on the principles of the fuzzy clustering and rough set, we give an introduction to the object-weight-constrained DEA model. Then, Given the life cycle cost and taking the civil aircraft as an example, we take the cost of the acquisition, the cost of operation and maintenance, the cost of retirement disposal as the input variables and main performance parameters of the civil aircraft which include Wind Loading and Thrust-to-weight Ratio as the output variables, then, with the DEA linear programming and the use of LINGO, we can easily get the efficient DMUs and provide optimization suggestions for the inefficient DMUs. Also, we can get the scale benefit and technology availability of the DMUs respectively. Finally, we analyse the results and get the conclusion that the results meet the fact in the airlines.