TO CALCULATE DETAILS FOR STRENGTH IN THE PROBABILITY ASPECT

Abstract

Generalization of regulations, empirical and analytical information concerning the determination of the statistical characteristics of the strength of metals and details for used in strength calculations in the probabilistic aspect. Are used modern methods of searching, describing and analyzing information to audit a variety of possible solutions in the subject area of research, developments with the strength of materials, mathematical statistics and probability theory. Is presented the possibility of using at the design stages for calculations of determine the statistical characteristics of the fatigue resistance of details at limited data on the mechanical characteristics of the strength of the material. The research results make it possible to take reasonable proposals to improve the fatigue strength of details. The further development of the theory and methodology of mathematical solutions for designing machine parts with specified reliability characteristics by the fatigue strength criterion while minimizing their weight and size. Is presented information that improves the quality and efficiency of design solutions for ensure the specified reliability of details. The calculation is performed on the example of cylindrical coil springs with a wide range of changes in their geometric, elastic and force parameters.