Underground Load-haul-dump Vehicle (LHD) is the key equipment used in underground trackless mines from 1960s. It is high efficient, maneuverable and flexible, and it has loading, hauling and dumping functions. Researches have been carried out in this study according to the problems existing in LHD design in our country. The theoretical and experimental methods in this study can solve the key problems of a complete LHD set dynamics and dynamic characteristics of system. These methods are of theoretical...