Compliance Assessment of the Superstructure of Buses in Accordance with the Requirements of Regulation No. 66 on the Basis of Computer Simulation of Tests

Abstract

The existing approaches of domestic and foreign researchers in the field of simulation of the loading of bus frames with the calculation evaluation of the superstructure are considered for compliance with the requirements of passive safety during rollover. The criteria and the main ways to improve the quality of computer models and to reduce the duration of calculations are determined. The fundamentals of the methodology for computer simulation of bus tests are presented and described for compliance with the requirements of Regulation No. 66. Revision 1 — Amendment 2. Uniform technical prescriptions concerning the approval of large passenger vehicles with regard to the strength of their superstructure (hereinafter — Regulation No. 66). An example of computer simulation of testing the superstructure of a suburban bus during rollover is given using the ANSYS LS-DYNA finite element analysis software system. Preparation of the model is performed using the LS-PrePost program.

Keywords

• superstructure
• bus
• passive safety
• computer model
• finite element analysis
• tilting angle
• tilting platform
• moment of inertia
• initial angular velocity
• potential impact energy
• regulation no. 66