Strength and durability analysis of a flat spring at vibro-impact loadings

A multifactor analysis of the rail transport car that passes over a joint unevenness with respect to the phases ot its motion

“…In particular, authors of [6] reported a scheme for the implementation of a vibro-impact system with a flat spring and a locally centered mass. The paper considers techniques that involve a piecewise-linear elastic characteristic in the form of two intermediate cylindrical supports.…”

“…Here the efficiency and reliability of rail track design is crucial for successful operation. Many contemporary studies into rail track focus on specific aspects of design and operation, for example, fatigue [1], destruction of the ballast [3], ride comfort [2], noise or vibration [6]. In order to ensure a comprehensive approach, it is necessary to devise a generalized tool, or several computational tools, which would integrally examine certain aspects of the design.…”

“…Under actual conditions, the loads of assemblies, nodes and parts of the railroad car and the upper structure of a rail define parameters of durability in operation [5], strength and rigidity [6], and, ultimately, the generalized technical resource and service life. Durability of the interacting rolling stock and rails also affects the frequency of replacement, that is, financial costs of acquisition.…”

Development and application of computer model to study the modes of dynamic loading in mechanical oscillatory systems

“…To discover the physical essence of flow of dynamical processes and to obtain data on the modes of dynamic loading of tooth gear, different approaches, based on developing and studying mathematical models of discrete and continuous systems, are used [8]. Modeling of dynamic processes in mechanical oscillatory systems and elastic environments are the focus of a number of publications [9][10][11][12][13][14][15].…”

“…In article [13], the approach to the implementation of models of elasticity of inhomogeneous materials within the method of discrete elements in combination with the cell automat was used. Study [14] is dedicated to the development of schemes of implementation of the vibro-impact system with one flat spring and locally concentrated masses. As a solution to the dynamic problem, the relationship between kinematic characteristics and parameters of the stressed state of oscillation system was obtained.…”