PDF(2228 KB)
PDF(2228 KB)
PDF(2228 KB)
基于离散元和响应面法的烟草过滤颗粒参数标定
Calibration of Tobacco Filter Particle Parameters Based on Discrete Element and Response Surface Methodology
为设计和优化烟草过滤颗粒填充设备,需要对过滤颗粒接触参数进行必要的标定。通过密度测量、堆积角试验、碰撞恢复系数标定、静摩擦因素和滚动摩擦因素测试,对颗粒与周围环境之间的相互作用参数进行了标定。采用响应面法优化了颗粒接触模型的参数,并通过离散元仿真验证了参数的准确性。实验结果表明,标定后的颗粒平均粒径为0.98 mm,密度为327.57 kg/m³,堆积角为5.39°,颗粒间的碰撞恢复系数、静摩擦因数和滚动摩擦因数为0.286、0.7、0.202,颗粒与不锈钢板间的碰撞恢复系数、静摩擦因数和滚动摩擦因数为0.7、0.094、0.04。与实际实验数据对比,仿真结果误差较小,验证了所提出标定方法的有效性和可靠性。
To design and optimize tobacco filter particle filling equipment, it is essential to calibrate the contact parameters of the filter particles. The interaction parameters between the particles and the surrounding environment were calibrated through density measurements, angle of repose tests, coefficient of restitution calibration, static friction and rolling friction factor tests. The response surface method was used to optimize the parameters of the particle contact model, and the accuracy of these parameters was verified through discrete element simulation. The experimental results show that the calibrated particles have an average diameter of 0.98 mm, a density of 327.57 kg/m³, and an angle of repose of 5.39°. The coefficient of restitution, static friction factor, and rolling friction factor between the particles were 0.286, 0.7, and 0.202, respectively, while the coefficients of restitution, static friction factor, and rolling friction factor between the particles and stainless steel were 0.7, 0.094, and 0.04. Compared with actual experimental data, the simulation results show small errors, validating the effectiveness and reliability of the proposed calibration method.
密度计量 / 烟草过滤颗粒 / 离散元仿真 / 响应面法 / 堆积角 / 参数标定
density metrology / tobacco filter particles / EDEM / response surface methodology / heap angle / parameter calibration
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