The Research On Cost-Schedule Management Of Electromechanical In Civil Aviation Telecommunication Station Based On Earned Value Technology

The supporting ground station project of CAAC(Civil Aviation Administration of China)has been renewed and enlarged with the booming demand for Aeronautical transportation in recent years.Facing more and more strict requirements of the projects not only in technology but also in management,the authors from CAAC has introduced the Earned Value theory to guide the cost and schedule management of the electromechanical engineering projects,who would have overcomed the lack of cost and schedule separated controlling,glittering with the practical significance of solving the problem,such as the leaders have laid more importance on schedule than on cost,the absence of scientificity and systematization on the controlling technology,distinctive delayed response after control etc.Several methodologies are employed in the thesis,including documentary analysis,comparative analysis,qualitative and quantitative methods integrating practices and so on.First of all,the principles,tasks and common methods of project cost and schedule management is introduced,the concept of earned value technology is illustrated,such as the definition,principle,parameters’ calculation process,analysis and evaluation system,etc..Then it is told that the topics cover the present status of the electromechanical project management in the station construction of CAAC,the problems on its cost and schedule control and the analysis of the reasons due to the problem.At the same time the necessity of establishing the project cost schedule control model is emphasized.The shortcoming of traditional earned value technology and need of civil aviation electromechanical engineering project management is taken into consideration.It proposes the mechanism of project cost and schedule control based on the improved earned value technology(second-level earned value method),which is composed of the cost and schedule index calculation,early alerting and controlling system and the evaluation followed controlling.This paper conducts the comparative study between using traditional earned value technology and improved earned value technology in the project cost and schedule control mechanism,In order to prove the model’s validity,reliability and feasibility.The data collected from electromechanical engineering project example in X telecommunication station is imported to the civil aviation electromechanical engineering project cost and schedule control model.The optimization solution,the actual cost price control mechanism in sub-projects based on adding/reducing overshoot,has been provided to achieve the study goal,while the results is demonstrated,according to the effect observed and assessed after the implementation of the couple of different control mechanisms.Eventually,the research work is summarized,and the deficiencies in the study are found.There is no reason to suspect the broad application prospects of earned value technology and its derivative theory in solving other problems about the electromechanical engineering problems of CAAC.These characteristics are discussed in the paper:(1)The earned value technology is applied to the less concerned field,Civil Aviation project management activities,the target of which is solving such problems as project cost overspend and schedule delay in civil aviation mechanical and electrical engineering.(2)through the use of earned value technology and improved earned value module key comparison of overall plan and schedule project cost impact on the same project respectively(two sub projects),revealed advantages including the improvement of earned value technique in the analysis of micro level project cost and schedule control and mining the core module ruling project cost and schedule,that the traditional earned value technology could not detect.(3)With the introduction of the overshoot control concept in cybernetics,the writer constructed the actual cost price control mechanism in sub-projects based on adding/reducing overshoot regulate terminally Civil Aviation electromechanical engineering case model,through the earned value evaluation index comparison to verify the effectiveness of the control mechanism before and after the regulation.