Design and experimental analysis of circular saw blade for stubble-cutting <i>Salix psammophila</i> imitating bamboo rat incisors

doi:10.3785/j.issn.1006-754X.2025.04.176

Chinese Journal of Engineering Design

2025, Vol. 32

Issue (3): 403-412 DOI: 10.3785/j.issn.1006-754X.2025.04.176

Basic Parts Design

Design and experimental analysis of circular saw blade for stubble-cutting Salix psammophila imitating bamboo rat incisors

Zhifei ZHAO(

),Zhigang LIU(

),Zhiwu HAN,Chenghui PEI,Tianyou SONG,Haotian MA

School of Mechanical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China

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Abstract

The circular saw blade is the main component for stubble-cutting operation of Salix psammophila, but it suffers from problems such as low cutting efficiency and teeth prone to wear during operation. Therefore, a mechanical analysis was conducted on the sawing process of circular saw blades, and a new biomimetic circular saw blade was designed by extracting the contour characteristic curves of the bamboo rat incisors as the bionic prototype. Subsequently, a finite element model of the circular saw blade imitating bamboo rat incisors was established, and the explicit dynamics software LS-DYNA was employed to simulate the sawing process for analyzing its mechanical performance. Meanwhile, the parametric comparison was made with the ordinary circular saw blade with folded-back teeth. The simulation results showed that the average sawing force of the circular saw blade imitating bamboo rat incisors reduced by 19.17%, among which the tangential force and radial force decreased by 16.67% and 10.68%, respectively. It also exhibited smaller fluctuations in axial force with shorter impact duration and achieved an 18.99% reduction in sawing energy consumption. The sawing test results indicated that the circular saw blade imitating bamboo rat incisors delivered superior sawing performance while reducing pressure and energy consumption on the saw teeth during the cutting process. The newly designed biomimetic circular saw blade provides a novel solution to address the problems of high energy consumption and easy wear of circular saw blades in the mechanized stubble-cutting process for Salix psammophila.

Key words： biomimetic circular saw blade mechanical analysis bamboo rat incisor sawing test

Received: 24 October 2024 Published: 02 July 2025

CLC:

TG 729

Corresponding Authors: Zhigang LIU E-mail: 2865171062@qq.com;lzhg2008@126.com

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	Zhifei ZHAO
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	Chenghui PEI
	Tianyou SONG
	Haotian MA

Cite this article:

Zhifei ZHAO,Zhigang LIU,Zhiwu HAN,Chenghui PEI,Tianyou SONG,Haotian MA. Design and experimental analysis of circular saw blade for stubble-cutting Salix psammophila imitating bamboo rat incisors. Chinese Journal of Engineering Design, 2025, 32(3): 403-412.

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https://www.zjujournals.com/gcsjxb/10.3785/j.issn.1006-754X.2025.04.176 OR https://www.zjujournals.com/gcsjxb/Y2025/V32/I3/403

仿竹鼠切齿沙柳平茬圆锯片的设计与试验分析

圆锯片作为沙柳平茬作业的主要零件，在作业过程中存在锯切效率低、锯齿易磨损等问题。为此，对圆锯片的锯切过程进行了力学分析，并以竹鼠切齿为仿生原型，通过提取竹鼠切齿的轮廓特征曲线，设计了一种新型的仿生圆锯片。随后，建立了仿竹鼠切齿圆锯片的有限元模型，利用显示动力学软件LS-DYNA模拟锯切过程，对其力学性能进行了仿真分析，并与普通折背齿圆锯片进行了参数化对比。仿真结果表明，仿竹鼠切齿圆锯片的平均锯切力下降了19.17%，其中切向力、径向力分别下降了16.67%和10.68%，轴向力的波动较小，影响时间较短，同时锯切能耗降低了18.99%。锯切试验结果表明，仿竹鼠切齿圆锯片的锯切性能更优，其锯齿在切削过程中所受的压力和能耗均有所降低。所设计的新型仿生圆锯片为沙柳机械化平茬过程中圆锯片能耗大、易磨损的问题提供了新的解决方法。

关键词： 仿生圆锯片, 力学分析, 竹鼠切齿, 锯切试验

Fig.1 Bamboo rat

Fig.2 Contour feature fitting curve of bamboo rat incisors

Fig.3 First derivative, second derivative and curvature of contour feature fitting curve of bamboo rat incisors

Fig.4 Simplified model of sawing force of circular saw blade

Fig.5 Sawing simulation process of circular saw blades

Table 1 Structural parameters of circular saw blade

Fig.6 Three-dimensional models of circular saw blades

Fig.7 Sawing model and mesh division of circular saw blade imitating bamboo rat incisors

属性参数	圆锯片	夹盘
密度ρ/(kg/m³)	7 820	7 850
弹性模量E/MPa	2.11 $×$ 10⁵	2 $. 00 ×$ 10⁵
泊松比 $ν$	0.288	0.300
屈服强度σ/MPa	785

Table 2 Material property parameters of circular saw blade and clamp

Fig.8 Maximum equivalent stress of circular saw blades during sawing

Fig.9 Comparison of sawing force of circular saw blades

Fig.10 Comparison of tangential force of circular saw blades

Fig.11 Comparison of radial force of circular saw blades

Fig.12 Comparison of axial force of circular saw blades

Fig.13 Comparison of sawing energy consumption of circular saw blades

Fig.14 Sawing test bench

Table 3 Average sawing force of circular saw blade and its relative error

Fig.15 Comparison of simulation and experimental sawing force variation curves of circular saw blades


[[1]]	马天琴. 不同平茬高度对沙柳生长状况的影响研究［D］. 呼和浩特：内蒙古农业大学， 2017. MA T Q. The study on the influence of different stubble height on the growth of Salix psammophila ［D］. Hohhot： Inner Mongolia Agricultural University， 2017.

[[2]]	梁钰镁，高永，蒙仲举，等. 沙柳沙障腐烂过程对土壤碳氮磷化学计量特征的影响［J］. 农业工程学报， 2022， 38（21）： 76-82. LIANG Y M， GAO Y， MENG Z J， et al. Effects of Salix psammophila sand barriers decay on soil carbon， nitrogen and phosphorus stoichiometry［J］. Transactions of the Chinese Society of Agricultural Engineering， 2022， 38（21）： 76-82.

[[3]]	段明泽. 沙柳平茬圆锯片的磨损机理研究及参数优化［D］. 呼和浩特：内蒙古工业大学， 2021. doi：10.1007/s12206-022-0313-5 DUAN M Z. Research on wear mechanism and parameter optimization of circular saw blade when stumping Salix psammophila ［D］. Hohhot： Inner Mongolia University of Tehchnology， 2021. doi: 10.1007/s12206-022-0313-5

[[4]]	杨春梅，高海洋，刘九庆. 灌木平茬机切割系统参数优化设计与验证［J］. 农机化研究， 2024， 46（8）： 42-49. YANG C M， GAO H Y， LIU J Q. Parameter optimization design and verification of cutting system of shrub stubble leveler［J］. Journal of Agricultural Mechanization Research， 2024， 46（8）： 42-49.

[[5]]	程卫华，刘志刚，裴承慧，等. 基于LS-DYNA的沙柳锯切仿真分析及试验研究［J］. 林产工业， 2023， 60（2）： 35-38， 45. CHENG W H， LIU Z G， PEI C H， et al. Simulation analysis and experimental study on sawing of Salix based on LS-DYNA［J］. China Forest Products Industry， 2023， 60（2）： 35-38， 45.

[[6]]	YU H Y， HAN Z W， ZHANG J Q， et al. Bionic design of tools in cutting： reducing adhesion， abrasion or friction［J］. Wear， 2021， 482-483： 203955.

[[7]]	马晶，张明鉴，刘强，等. 仿生刀具研究进展综述［J］. 机械工程学报， 2022， 58（13）： 261-281. doi：10.3901/jme.2022.13.261 MA J， ZHANG M J， LIU Q， et al. A review of the research progress of bionic cutting tools［J］. Journal of Mechanical Engineering， 2022， 58（13）： 261-281. doi: 10.3901/jme.2022.13.261

[[8]]	田昆鹏，李显旺，沈成，等. 天牛仿生大麻收割机切割刀片设计与试验［J］. 农业工程学报， 2017， 33（5）： 56-61. TIAN K P， LI X W， SHEN C， et al. Design and test of cutting blade of cannabis harvester based on longicorn bionic principle［J］. Transactions of the Chinese Society of Agricultural Engineering， 2017， 33（5）： 56-61.

[[9]]	姜振喜. TC4-DT钛合金切削性能研究与仿生刀具结构设计［D］. 济南：山东大学， 2016. JIANG Z X. Research on machinability of TC4-DT titanium alloy and structural design of bionic tool［D］. Jinan： Shandong University， 2016.

[[10]]	TONG J， XU S， CHEN D H， et al. Design of a bionic blade for vegetable chopper［J］. Journal of Bionic Engineering， 2017， 14（1）： 163-171.

[[11]]	余前溪. 复合型微织构刀具切削机理研究［D］. 上海：上海工程技术大学， 2021. YU Q X. Study on cutting mechanism of composite micro texture tool［D］. Shanghai： Shanghai University of Engineering Science， 2021.

[[12]]	向车成. 基于竹鼠切牙的CFRP车削刀具仿生设计研究［D］. 成都：西南交通大学， 2022. XIANG C C. Biomimetic design of turning tool for carbon fiber reinforced polymer based on bamboo rat incisors［D］. Chengdu： Southwest Jiaotong University， 2022.

[[13]]	牛健地. 基于竹鼠切牙的梯度微织构车刀仿生设计研究［D］. 成都：西南交通大学， 2018. NIU J D. Study on the biomimetic design of gradient micro-texture's cutting tool based on bamboo rat incisors［D］. Chengdu： Southwest Jiaotong University， 2018.

[[14]]	张建强，刘志刚，田丰，等. 自走式沙柳平茬机优化设计与试验［J］.中国农机化学报， 2024， 45（12）： 52-59. ZHANG J Q， LIU Z G， TIAN F， et al. Optimal design and experiment of self-propelled Salix stubble machine［J］. Journal of Chinese Agricultural Mechanization， 2024， 45（12）： 52-59.

[[15]]	马中祥. 沙生灌木圆盘锯切试验台的设计与试验研究［D］. 呼和浩特：内蒙古工业大学， 2020. MA Z X. Design and experimental study of a disc sawing test bench for sandy shrubs［D］. Hohhot： Inner Mongolia University of Technology， 2020.

[[16]]	陆亮. 基于LS-DYNA的巨菌草锯切仿真与切割器参数优化［D］. 长沙：中南林业科技大学， 2023. LU L. Simulation of giant fungus grass sawing and optimization of cutter parameters based on LS-DYNA［D］. Changsha： Central South University of Forestry & Technology， 2023.

[[17]]	张少勇，刘志刚，裴承慧，等. 沙柳材物理力学特性测定与分析［J］. 林产工业， 2020， 57（7）： 12-14， 49. ZHANG S Y， LIU Z G， PEI C H， et al. Determination and analysis on physical and mechanical properties of Salix ［J］. China Forest Products Industry， 2020， 57（7）： 12-14， 49.

[[18]]	段明泽，刘志刚，李国良，等. 霍普金森试验下沙柳顺纹动态力学特性分析［J］. 林业工程学报， 2020， 5（5）： 52-56. DUAN M Z， LIU Z G， LI G L， et al. Dynamic mechanical properties analysis of Salix psammophila wood parallel to grain using Hopkinson test［J］. Journal of Forestry Engineering， 2020， 5（5）： 52-56.

[[19]]	张少勇，刘志刚，裴承慧，等. 沙柳力学性能试验及数值模拟［J］. 东北林业大学学报， 2022， 50（6）： 105-110. ZHANG S Y， LIU Z G， PEI C H， et al. Mechanical properties test and numerical simulation of Salix psammophila ［J］. Journal of Northeast Forestry University， 2022， 50（6）： 105-110.

[[20]]	贺勤，王喜明. 沙柳树皮纤维形态及化学成分变异性的研究［J］. 内蒙古农业大学学报（自然科学版）， 2013， 34（4）： 131-135. HE Q， WANG X M. The study on fiber form and chemical composition of Salix bark and its variation［J］. Journal of Inner Mongolia Agricultural University （Natural Science Edition）， 2013， 34（4）： 131-135.

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