Frictional properties of red pine cones harvested under different conditions

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Bioresources Pub Date : 2023-12-08 DOI:10.15376/biores.19.1.766-788

Yunze Ren, Chi Teng, Tong Gao, Ying Zhang, Hui Liu, Xibin Dong

{"title":"Frictional properties of red pine cones harvested under different conditions","authors":"Yunze Ren, Chi Teng, Tong Gao, Ying Zhang, Hui Liu, Xibin Dong","doi":"10.15376/biores.19.1.766-788","DOIUrl":null,"url":null,"abstract":"The climbing of trees to pick pinecones is a high-risk exercise. In this study, a mechanical gripper jaw was designed. Frictional characteristics between the pinecones and the mechanical gripper jaw during pinecone picking under different conditions were investigated using a workbench simulation, homemade inclined friction meter, and mass tester. Three-level orthogonal and one-factor tests were conducted. The relationship between the water content and friction properties and between the water content and hardness were investigated, and conclusions were drawn on how water content affected friction properties by influencing hardness. The results showed that the contact material greatly affected the friction properties. The pinecone water content was maintained between 24% and 28% to ensure that the coefficient of friction was maximized and that the pinecones were sufficiently hard to dislodge. Additionally, a prototype machine was used to perform pinecone-gripping experiments to validate the experimental and simulation results. Consequently, the results of this study provide a useful reference for the structural design of pinecone picking robots and the picking reason.","PeriodicalId":9172,"journal":{"name":"Bioresources","volume":"179 ","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioresources","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.15376/biores.19.1.766-788","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, PAPER & WOOD","Score":null,"Total":0}

引用次数: 0

Abstract

The climbing of trees to pick pinecones is a high-risk exercise. In this study, a mechanical gripper jaw was designed. Frictional characteristics between the pinecones and the mechanical gripper jaw during pinecone picking under different conditions were investigated using a workbench simulation, homemade inclined friction meter, and mass tester. Three-level orthogonal and one-factor tests were conducted. The relationship between the water content and friction properties and between the water content and hardness were investigated, and conclusions were drawn on how water content affected friction properties by influencing hardness. The results showed that the contact material greatly affected the friction properties. The pinecone water content was maintained between 24% and 28% to ensure that the coefficient of friction was maximized and that the pinecones were sufficiently hard to dislodge. Additionally, a prototype machine was used to perform pinecone-gripping experiments to validate the experimental and simulation results. Consequently, the results of this study provide a useful reference for the structural design of pinecone picking robots and the picking reason.

查看原文本刊更多论文

在不同条件下收获的红松球果的摩擦特性

爬树摘松果是一项高风险运动。本研究设计了一种机械夹爪。使用工作台模拟、自制倾斜摩擦仪和质量测试仪研究了在不同条件下采摘松果时松果与机械夹爪之间的摩擦特性。进行了三级正交试验和单因素试验。研究了含水量与摩擦性能之间的关系以及含水量与硬度之间的关系，并就含水量如何通过影响硬度来影响摩擦性能得出了结论。结果表明，接触材料对摩擦性能有很大影响。松果的含水量保持在 24% 到 28% 之间，以确保摩擦系数最大化，松果足够坚硬，不易脱落。此外，还使用原型机进行了松果夹持实验，以验证实验和模拟结果。因此，本研究的结果为松果采摘机器人的结构设计和采摘原因提供了有益的参考。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Bioresources 工程技术-材料科学：纸与木材

CiteScore

2.90

自引率

13.30%

发文量

397

审稿时长

2.3 months

期刊介绍： The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.