Development of the mathematical model of the multi-criterion structure for the evaluation of vehicle quality indicators
Abstract
The technological level of development of any branch of production is determined by the efficiency of the use of material and energy resources. Innovative technologies for system optimization of vehicle maintenance and repair processes can make a significant contribution to improving overall efficiency in the motor vehicle industry. A comprehensive approach to the problem of determining the service life of cars in dynamically changing environmental conditions requires a scientific and methodological justification that ensures the optimization of complex processes in the "production-operation-disposal" system of cars.
Targeted regulation of the duration of car operation is one of the most important tasks of technical operation of cars management, which is directly related to the management of the performance of both individual cars and car fleets. This function of the vehicle lifetime management system is focused on determining the optimal duration of preservation of its main qualities or a group of qualities under conditions of dynamic changes in the environment.
The principles of forming a mathematical model of the multi-criteria structure of car quality assessment in the car life management system reflect the main set of modern requirements of the environment of its operation and eliminate the shortcomings of the models that were used earlier.
When determining the quality indicator of a car or fleet of rolling stock of motor vehicle enterprise, the limit state of the car is considered as its inability to perform the specified functions, including, and in accordance with the conditions of the external operating environment.
To solve the optimization tasks in the system of managing the life of the car, the criteria and measures of its efficiency are defined, which ensure obtaining the desired solutions. As a comprehensive quality indicator when developing a mathematical model of the multi-criteria structure of the system, a quality indicator based on the coefficient of technical use of the car is adopted, which is the most justified for achieving the goals of the study.
Key words: technical operation of the car, coefficient of technical use of the car, quality assessment index, limit state of the car, service life, reliability, environmental safety, structural safety.
