بهینه سازی زمان جایگزینی و تعویض تجهیزات با استفاده از هزینه چرخه عمر (مطالعه موردی: ناوگان اتوبوس رانی شرکت جوان سیر ایثار)

Optimizing the time of replacement of the equipment, using life cycle costing (lcc)received: 11/12/2011accepted: 29/01/2012mohsen yousofi , saeid ramezani *, mohsen taheri , abbas sharifi logistics studies and research centerimam hossein university (pbhu)abstract one of the most important decisions in the field of logistics organization, determine the optimal time is to use the equipment. managers must know the appropriate agency to decide when the best time to change or removal or replacement of the equipment is, so that the greatest benefits and lowest cost for the organization is based. in this regard the identification and life cycle cost calculations used to determine the optimum life of the equipment is essential. this is the result of scientific research, introducing the life cycle costing methodology and calculations related to the economic life of the equipment, the model results in javanseir.co. for buses o500, are present. this development, in addition to providing the optimal time to replace equipment due to the economic life, basis for other management decisions on the purchase of replacement equipment, management and performance evaluation operations and managers, will be also.