Numerical Analysis of the Crash-Test Platform

The subject of the work was to carry out numerical analyzes of the structure of the crash-test platform intended for carrying out research on a position enabling the simulation of dynamic phenomena, allowing non-destructive testing of vehicles and their equipment. Dynamic tests consists in accelerating the truck and braking it with the appropriate deceleration. The brake applied to the end of the test track is responsible for braking the platform. The purpose of the platform is to work with large objects, in particular road ambulances in tests for compliance with the PN-EN 1789 standard [8]. The test platform will also be designed for a crash test with a side pole test as part of one of the EuroNCAP tests [9]. The test object is a suitably loaded vehicle body (ambulance) with medical equipment. Strength calculations of the analyzed structure of the crash-test platform were made using the finite element method (FEM). These calculations were based on the exemplar created at the stage of designing the 3D model, on previously verified material data as well as on pre-determined and specified loads resulting from the crash test. The software from the Altair HyperWorks package was used for calculations. The aim of numerical analyzes was to capture critical sites in the frame structure of the test platform (places of stress concentration) as well as the character of deformations of this structure.