关键词: 重型越野汽车；驾驶室顶盖；加装；结构设计；实车验证

Abstract: There are significant differences between heavy off-road vehicles and ordinary heavyduty trucks in terms of operating conditions and application scenarios. Traditional truck design concepts are difficult to directly adapt to heavy off-road vehicle models. To meet the actual upgrade requirements for installing information equipment on the roof of heavy off-road vehicle cabs, this paper conducts a specialized design study. A research approach combining scheme demonstration, structural design, simulation analysis, and real-vehicle tracking verification is adopted to systematically analyze and optimize the adaptability between the add-on structure and the complete vehicle. This effectively addresses the strength, reliability, and compatibility issues encountered during the installation of information equipment on heavy off-road vehicles, ensuring the vehicles meet the operational requirements under harsh road conditions. The research results can directly support the informationization upgrade of heavy off-road vehicles, while also providing technical approaches and reference basis for the engineering development of roof-mounted equipment on similar commercial vehicle cabs, offering practical application value for enhancing the intelligence and informationization level of special off-road vehicles.

Key words: heavy off-road vehicle; cab roof; add-on installation; structural design; physical vehicle validation