Simulation of the TATA 079 suburban bus rollover tests in accordance with UN/ECE Regulation No. 66

Abstract

This work is a logical continuation of studies presented in the author’s previous publications [1,2,3] on establishing the analytical application features of the developed methodology for simulating natural tests in accordance with UN/ECE Regulation No. 66. [4], as well as evaluating the identity between calculated and experimental results of checking the reserve of cabin space. The relevance of the proposed methodology is primarily related to the need to comply with the requirements of the current Regulation regarding the level of passive safety of passengers in the cabin during the certification of buses: a real-life approach to testing is conducted with a series of crash tests, which lead to the inevitable destruction of the bus body frame. We would like to remind that the specific weight of the body cost in the total cost of the bus, depending on its type, can reach up to 50% of its price, which leads to exorbitant costs during the certification of road prototypes before the start of their commercial operation.

Study of microclimate parameters in the bus driver’s cabin in the warm season

“…At the same time mass points of engine with gearbox (C5 and C7 on fig. 1), which are located in the rear overhang, is quite positive solution for the better road adhesion coefficient, because the rear drive axle additionally loaded with the weight of powertrain [2][3][4][5].  Salon space square is extremally important for the efficient commercial exploitation of buses in conditions of high-populated cities, as each square inch of space determines the bus usage profit.…”