Applied Physics and Mathematics Annotation << Back OPTIMAL RECONSTRUCTION SYSTEMS WITH AGING B.K. NARTOV In the work is formalized and mapped three types of optimal prevention/recovery technical systems with aging. The tasks of the fi rst type, the optimality criterion is the intensity of the maintenance costs of the system. In problems of the second type, the optimality criterion is the percentage of time during which the system can not be repaired (after a failure) and not profi laktirujut planning. In dvokriselnyh problems of the third type are used as direct cost and time optimality criteria. The obtained explicit forms of criteria. Proved the optimality of two common empirical strategies for prevention/recovery. Keywords: aging, prevention, restoration, optimal operation. Contacts: E-mail: nartov@ofi m.oscsbras.ru Pp. 44-48.