Loading modes of the chassis elements of an energy efficient trucks based on road load data

Abstract

In the process of designing a energy efficient truck, it is especially important to choose representative loading modes to assess the compliance of the undercarriage elements of the chassis with the requirements of strength and durability. The undercarriage elements of the chassis include components and systems that perceive loads and ensure the mobility of the energy efficient truck. The authors of the article focus on the design of the hull parts of the drive axle. The body parts of the drive axle perceive loads from the road and transfer them to the sprung parts. Failure of this power structure means the risk of an emergency, so the power structure must be carefully checked, especially with regard to strength properties and durability. The authors of the article are skeptical about the current requirements and regulations for testing and design studies of driving axles from the point of view of their sufficiency and validity against the background of a comparative analysis of foreign approaches to checking the operational reliability and equipment of testing laboratories. The result of this article is the proposal of a cascade of loading modes for computational modeling of the loading of the undercarriage elements at the initial stages of designing an energy efficient truck. The aim of the work is to develop computational methods for modeling strength and durability in the process of designing an energy efficient truck by developing a reasonable proposal for a cascade of loading modes indicating requirements in the form of a minimum number of cycles before failure and the value of elongation at the sites of failure development.