Аграрный вестник Урала № 07 (137) 2015Инженерия
AN APPROACH TO CALCULATION OF EMERGENCY LOADS IN TECHNICAL SYSTEMS
The basic problems determination of operational safety of technical systems, in particular the various machine techniquesused including in agriculture, based on the fundamental results obtained in disciplines such as strength of materials, theoryof elasticity, theory of plasticity, creep theory, fracture mechanics and other sections of solid mechanics. The durability, reliability,durability, the probability of failure, etc. for machine details in the technical system are determined on the using of thetechniques developed there at the design stage. These characteristics are depended on the nature of existing operational loads
and estimated resource implications and the release of their failure. The problem of high-quality and reliable prediction ofthe risk of accidents and fully still not been decided and requires the development of new and more effective methods basedon non-traditional mechanics of a solid areas of mathematics. The possible approach is the using for predict accidents anddestruction of the technical systems of the modern mathematical apparatus of the theory of catastrophes. This unit is usuallyapplied to the analysis of stability and instability of the mechanical systems of gradient type, when the system operates a finitenumber of conservative forces and there are a finite number of internal parameters defining the state of the system. Disruptionor failure of a technical system is a phenomenon of the same order as the phenomenon is impossible balance. When the equilibriumof the system becomes unstable, realized an abrupt transition in the near stable equilibrium state (global catastrophe).In this paper we consider a class of discrete gradient mechanical (technical) systems whose behavior is described by somepotential functions of the control parameters (load) and the state parameters (displacement). Developed the basic theoreticalprinciples and provides a generic algorithm for computing the values of destroying technical system loads.
limit loads, conservative system, accident, catastrophe, safety.
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