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为在渔船模拟器中进行渔网的动态模拟,根据集中质量法建立了渔网的数学模型,将渔网离散为由大量无质量弹簧连接的质量点的集合,并考虑了均匀流对渔网运动的影响.利用同某质量点相连的其它质量点的已知位移代替其实际位移来求解该质量点所受到的弹性力,从而可进行各质量点方程的单独求解.采用隐式Newmark-β算法求解质量点方程,增大了可进行稳定计算的时间步长.对一网片在均匀流中的运动进行了模拟,并将仿真结果同其水槽试验结果进行了比较,从而验证了模型的合理性.“,”In order to simulate fishing net’s dynamic behaviors in fishing simulator, a hydrodynamic model of fishing nets was established according to lumped mass model, which divided the net into finite mass points connected with springs without mass, and influences of uniform current were taken into account. Calculated positions of mass points instituting variables of position were used to calculate connected mass points’ elastic force, and every mass point’s equations could be solely solved. To take a relative bigger step size for calculation, Newmark-β method was used to solve the equations of each mass point. Behaviors of a panel net in uniform current were simulated, and simulated results were compared with that of flume experiments, which verified model’s rationality.