应用离散元法表征烟丝尺寸对其柔软性的力学影响

李晓; 冯东民; 郭朋玮; 方世航; 李宜馨; 芦柯; 纪晓楠

doi:10.12187/2025.03.010

June 2025

Article Contents

LI Xiao, FENG Dongmin, GUO Pengwei, et al. Mechanical effects of cut tobacco sizes on softness characterized by discrete element method[J]. Journal of Light Industry, 2025, 40(3): 86-94. doi: 10.12187/2025.03.010

Citation: LI Xiao, FENG Dongmin, GUO Pengwei, et al. Mechanical effects of cut tobacco sizes on softness characterized by discrete element method[J]. Journal of Light Industry, 2025, 40(3): 86-94. doi: 10.12187/2025.03.010 shu

Mechanical effects of cut tobacco sizes on softness characterized by discrete element method

LI Xiao ¹ ,
FENG Dongmin ¹ ,
GUO Pengwei ² ,
FANG Shihang ³ ,
LI Yixin ¹ ,
LU Ke ¹ ,
JI Xiaonan ^4,,

1. College of Tobacco Science and Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China;
2. Technology Center, Jilin China Tobacco Industry Co., Ltd., Changchun 130033, China;
3. Nanyang Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Nanyang 473000, China;
4. Technology Center, Henan China Tobacco Industry Co., Ltd., Zhengzhou 450016, China

Corresponding author: JI Xiaonan, hnzy_jxn@163.com
Received Date: 2024-05-28
Accepted Date: 2024-10-21

Abstract

To investigate the effects of cut tobacco size distribution on softness and elucidate the underlying mechanisms causing variations in softness, a texture analyzer simulation model was developed using the discrete element method (DEM). This model was employed to measure cut tobacco softness, analyze the force response differences among various size fractions during testing, and explore their impacts on force chain evolution. By adjusting the size ratios, the variation patterns of softness were systematically examined. The results indicated that a higher proportion of tobacco particles exceeding 3.35 mm or below 1.00 mm was associated with reduced softness, while an increased proportion of tobacco within the size ranges of 1.00~2.50 mm and 2.50~3.35 mm correlated with improved softness. Tobacco particles in the 2.50~3.35 mm size range exerted the greatest influence on the force response during measurement. The average force experienced by tobacco particles decreased with decreasing particle size and became more uniformly distributed. Softer tobacco samples exhibited fewer medium-and high-strength force chains, which were also more uniformly distributed. The proportion of low-to-medium strength contacts between different size fractions increased with decreasing particle size. Rational increases in medium-sized (1.00~2.50 mm) and short (2.50~3.35 mm) tobacco fractions improved softness, while excessive proportions of long (>3.35 mm) and fine (<1.00 mm) particles degraded softness. Optimizing the size distribution by increasing the proportion of 1.00~3.35 mm particles and reducing fractions outside this range enhanced both the mechanical performance and softness under external loading.
- distinct element method,
- ratio optimization,
- cut tobacco size,
- cut tobacco softness,
- mechanical performance
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Mechanical effects of cut tobacco sizes on softness characterized by discrete element method

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