Possibilities of constructing design load diagrams of a helical cable shock damper when the direction of inertia forces changes

Abstract

Currently, experimental load diagrams in several main directions of load perception are used to describe the stiffness characteristics of cable shock dampers. In this case, the direction of the action of inertia forces in relation to the damping system can be arbitrary. The idea of constructing calculated load diagrams when the direction of load action changes is to interpolate experimental load diagrams located in the plane in which the direction of load action changes. To construct design load diagrams, two fundamentally different approaches are used: their direct interpolation and interpolation of the Young’s modulus of an isotropic curved beam-cable simulator with its subsequent display in a numerical model, its multivariate computer analysis and construction of design load diagrams. Examples of constructing calculated load diagrams when changing the direction of the load are given. The limitations of using this approach are determined.

Keywords

• damping system
• static calculation
• cable modeling
• damper stiffness
• multi-model approach