FUNCTIONAL-COST ANALYSIS OF THE AIR PRESSURE REGULATION SYSTEM IN THE TYRES OF THE MILITARY AUTOMOTIVE EQUIPMENT

Abstract

Functional-cost analysis is the method of the system study of the object functions to find the balance between its cost price and utility.

Functional-cost analysis is carried out in the process of the development and putting into manufacture of new products, improvement of technical-economic level of the production. In the process of design the search of the optimal technical solutions, determination of the boundary target cost for manufacturing of the developed objects and determination of the most efficient conditions of their usage is carried out. At the stage of production for the improvement of the objects the unnecessary costs are revealed, disproportions between the significance of the functions for the consumers and expenses for their provision are determined, search for the reserves for decreasing the cost price and improvement of the products quality is carried out.

The given paper considers functional-cost analysis of the air pressure regulation system in the tires of wheels of the military automotive vehicle «KrAZ». Functional model of air pressure regulation system in the tires of the wheels of military automotive vehicle «KrAZ» and functions classification of its functional model has been developed.

The utility coefficient of the air pressure regulation system in the tires of the wheels of military automotive vehicle «KrAZ» has been determined by means of construction of the priorities matrix according to the known calculation technique.

Generalized expenses criterion in the process of technical and production systems design takes into account the expenses at all stages of the life cycle of the system, for their assessment the expenses matrix of the air pressure regulation system in the tires of the wheels of the military automotive vehicle «KrAZ» has been constructed, expenses coefficient is determined from this matrix.

Utility diagram of the functions of air pressure regulation system in the tire of the wheels of the military automotive vehicle «KrAZ», diagram of the functions ranking of the system relatively utility coefficient, functional-cost diagram of the system, diagram of the functions expenses of the system, diagram of the functions system ranking relatively the expenses coefficient, diagram of the values of the index of the functional cost of the system functions, diagram of the system functions ranking relatively the functional cost index have been constructed.

Functions of air pressure regulation system in the tire of the wheels of the military automotive vehicle «KrAZ», which have positive functional-cost index and the highest rating among the considered functions have been determined according to the constructed diagrams. Operations or functions, having the highest functional- cost index and rank are the operations, improvement of which leads to further development of the system or achieving the objective of the analysis.