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Reliability Maintenance Management Theory in the use of maintenance

Technology industry, it is necessary to establish a sound, scientific management system for vehicle use and maintenance, system reliability theory is based on the maintenance theory. It uses computer technology to automobile use and maintenance departments as well as automotive design, manufacturers of information between visits. The system can use the following diagram: Received 171: 1996 a l1-21 ④ a basket of a NORMAL UNIVERSITY i997 74 No. 3 first. We want to build vehicle use and maintenance of data and information management systems. It includes models technical data, fault information, maintenance data. Second, we should establish a reliability-centered maintenance decision system that uses vehicle use and maintenance of data and information management system information, the consequences may occur under the car and the reliability requirements of the various parts and repair maintenance requirements determination. Below. I only maintain the reliability of systems theory in maintenance decision of the application for a. A choice of maintenance mode analysis shows that from the maintenance, preventive maintenance, the occasional failure is invalid, but for failure to wear a small failure probability l reservoir. To this end, the use of reliability theory, the principle of maintenance mode options are as follows: ① the failure was sudden. And unpredictable, and the consequences of the accident did not involve the safe operation; or failure is the gradual onset, but the fault is not involved in operational safety, the maintenance cost is less than Juan prevention maintenance costs, that is, when CC (i-R) + CR, xR + Xm (1 A R) where: - the average interval length of minor repairs x - for the maintenance cycle of x - the average distance between failures C - to maintain an average cost (ie, small repair costs) - costs or replacement parts troubleshooting cost R - Auto probability between failures. Maintenance mode can be used later. ② The gradual onset of failure, and can not be measured Juan. Direct impact or consequences of failure to run security. Or on-demand maintenance and after maintenance of economy than by preventive maintenance, preventive maintenance can be used. ③ For the gradual onset of failure. If the detection of potential failure. Effective use of fork work, and less than the cost of preventive maintenance. That is, when C (1 a R) + R (C. + C) C (1 a R) + CR (1 a R) X + RXm, XR + X (1 A R), can be used on-demand maintenance. Where: C - the average cost of a diagnosis of C - pure maintenance costs - simply to maintain the share of operating costs in the second the proportion of maintenance if l} f the measures invalid, should be re-improved design. 2 maintenance cycle under normal circumstances, we can l} f one cycle of maintenance and repair costs and the minimum principle to establish a reasonable maintenance cycle. In a maintenance cycle (MuT) in, CI for the prevention of maintenance costs. During the failure of repair due to the cost of C Ⅱ, Bao Weining Reliability Maintenance Management Theory in the use of the maintenance of a MUT, the unit total cost: c (where: MUT = I3R () dl, R () is a reliable car function. f (L), F (L), respectively, for the automotive fault density cumulative distribution function. that insects = 0, solve the L-value unit cost of travel for the smallest child maintenance repair cycle. If we consider the system validity the maximum maintenance cycle time, Tony has 9, the effective degree of surface Li MU side A = T which can not work an average mileage of MDT = Lp + LcI6 (z) al, Lp suspended as a result of preventive maintenance resulting mileage, k as a result of caused by faulty repairs suspended mileage. So d a tour! nMUT + Lp + Lcf6 Shí zf5R (c) dlf5R () dl + Lp + Lcf5 () dl Order: 0 - solved the greatest degree of z is the effective maintenance cycle .3 maintenance predictive maintenance service life of the object economy economic life of the object is to avoid the interminable pre-fused repair, timely retirement, increase economic efficiency. to the economic life of the car down to illustrate this. The total cost of vehicle use and maintenance is = C1 + C2 + C0 where, C investment costs per thousand kilometers. It increases with decreasing mileage; C2 for the deterioration of the quality-per-thousand kilometers. It increased with increasing mileage; C. is fixed expenditure,[link widoczny dla zalogowanych], it has nothing to do with mileage. For example: a one-time investment of automotive grade K. yuan per thousand kilometers deterioration of quality for the b element. Then, = + bL + C. (yuan / km) that Lu = 0, may L = √, and then use the value of L to be amended. you can get the economic life of the car.