本文通过数值模拟研究了具有能量子库的活性布朗粒子动力学.首先，在自由场中，我们的计算表明活性布朗粒子不存在定向运动，而且均方位移随时间非线性变化. 其次，在谐振子势中，我们发现粒子的自由扩散受到了限制，但相同时间内，活性布朗粒子的扩散区域比被动布朗粒子大.最后，在非对称周期势中，我们计算了活性布朗粒子的位置分布，同时计算不同势垒高度下，活性布朗粒子平均速度随时间的变化，结果表明活性布朗粒子能否将储存子库的能量转化为定向运动依赖于势垒高度.

In the paper，the dynamics of active Brownian particle with internal energy depot is

investigated by numerical simulation. First，for the free potential case，the results show that

active Brownian particles do not per- form directed motion and the mean squared displacement of

active Brownian particle is a nonlinear function of time. Then in the harmonic potential case，we

find that the free diffusion of particle is restricted and the range of diffusive motion of active

Brownian particle is larger than that of passive Brownian particle during the same time interval.

At last，for asymmetric period potential we calculate the distribution of the displacement of the

active Brownian particle and the averaged velocity of the active Brownian particle change in time

with different potential barriers. The results show whether or not active Brownian particle is

able to transfer the depot energy into directed motion depends on the height of asymmetric

potential barrier.