Strength of a Load-Carrying Steel Frame of a Mobile Wheeled Vehicle Cabin

Achieving the required price indicators when creating new mobile wheeled vehicles becomes possible due to the use of metallurgical products. The objective of this study is to develop technical solutions for a cabin of a mobile wheeled vehicle by using special steel profiles, tubes, sheet material, stampings, and subunits assembled together to form a load-carrying steel frame; and to study the strength of such cabin frame. A welded construction of a load-carrying steel frame of the mobile wheeled vehicle cabin is proposed, consisting of quadrangular tubes and additional rolled steel sheet elements profiled in several directions. An analytical computer model has been developed to study the design of the load-carrying cabin frame by using finite element analysis. To evaluate the strength properties, calculations in accordance with the regulatory requirements of GOST R ISO 5700–2008 and GOST R ISO 3471–2009 were performed. The results of these calculations have shown that the developed load-carrying steel frame of the cabin provides the necessary flail space for the vehicle operator in accordance with the requirements of the regulatory documents.