Motion equations of AUV (autonomous underwater vehicle) load separation with positive buoyancy force load, that the load s buoyancy force is bigger than its gravitational force, was derived.

• 在此基础上,对该AUV在不同初始参数下的载荷分离运动进行仿真研究,仿真结果清晰的反映了AUV载荷分离运动情况。