本文主要研究内容
作者王海涛（2019）在《鼓式削片机的切削数值模拟及刀辊优化设计》一文中研究指出：人造板是将植物原料经机械加工而成的胶合压制品,广泛应用于与人民生活密切相关的建材家居领域。鼓式削片机是人造板切削加工过程中最基本的设备,用以制备人造板所需的单元木片。鼓式削片机市场使用率较高,但切削加工过程中耗能大,能源利用率低,切削部分能量利用率不足总能量的25%。因此,对鼓式削片机切削力加以研究进而对鼓式削片机结构参数优化,有助于完善鼓式削片机切削理论,提高其使用寿命和能源利用率;利用优化结果制定刀辊制造工艺路线,为鼓式削片机刀辊制造提供帮助。基于木材切削原理,从切削速度、进给速度和深度、刀具磨损着手,探讨其对切削能耗的影响。研究鼓式削片机切削过程中工件的受力情况,确定工件的破坏形式属于Ⅱ-Ⅲ复合型裂纹扩展,运用断裂力学理论分析工件断裂过程中裂纹扩展情况,建立鼓式削片机作用下工件复合型裂纹扩展力学模型,借助MATLAB软件分析各变量对工件裂纹扩展所需剪切分力FⅡ、剪切分力FⅢ和总切削力F的影响。剪切力F随着裂纹极角φ的增加先增大后减小;随断裂角γ0增加而增大;工件裂纹扩展所需剪切力F分别与切削厚度b、切削宽度l和切削角θ呈正比关系。基于ADAMS软件环境探究刀辊转速、切削角及工件直径等递增时,工件所受剪切力的变化规律;利用ABAQUS软件对工件裂纹扩展加以数值模拟,并分析切削角和刀辊转速不同时裂纹扩展应力应变变化情况。总切削力F和剪切分力FⅡ随刀辊转速增加由平稳转为增长趋势,随切削角呈先增大后减小趋势,与工件直径呈正比趋势;剪切分力FⅢ随转速增加呈增长趋势,随切削角呈先减小后增大的趋势,随工件直径增加呈先增长后平稳趋势。基于遗传算法,以底刀安装角β和刀具位角φ为设计变量,以切削功率为目标函数构建数学模型,运用MATLAB软件进行优化,优化后的鼓式削片机的能量利用率提高了约2%。以刀辊为制造对象,以优化结果为加工参数,选择加工设备,对鼓式削片机刀辊加工工艺路线加以分析。
Abstract
ren zao ban shi jiang zhi wu yuan liao jing ji xie jia gong er cheng de jiao ge ya zhi pin ,an fan ying yong yu yu ren min sheng huo mi qie xiang guan de jian cai jia ju ling yu 。gu shi xiao pian ji shi ren zao ban qie xiao jia gong guo cheng zhong zui ji ben de she bei ,yong yi zhi bei ren zao ban suo xu de chan yuan mu pian 。gu shi xiao pian ji shi chang shi yong lv jiao gao ,dan qie xiao jia gong guo cheng zhong hao neng da ,neng yuan li yong lv di ,qie xiao bu fen neng liang li yong lv bu zu zong neng liang de 25%。yin ci ,dui gu shi xiao pian ji qie xiao li jia yi yan jiu jin er dui gu shi xiao pian ji jie gou can shu you hua ,you zhu yu wan shan gu shi xiao pian ji qie xiao li lun ,di gao ji shi yong shou ming he neng yuan li yong lv ;li yong you hua jie guo zhi ding dao gun zhi zao gong yi lu xian ,wei gu shi xiao pian ji dao gun zhi zao di gong bang zhu 。ji yu mu cai qie xiao yuan li ,cong qie xiao su du 、jin gei su du he shen du 、dao ju mo sun zhao shou ,tan tao ji dui qie xiao neng hao de ying xiang 。yan jiu gu shi xiao pian ji qie xiao guo cheng zhong gong jian de shou li qing kuang ,que ding gong jian de po huai xing shi shu yu Ⅱ-Ⅲfu ge xing lie wen kuo zhan ,yun yong duan lie li xue li lun fen xi gong jian duan lie guo cheng zhong lie wen kuo zhan qing kuang ,jian li gu shi xiao pian ji zuo yong xia gong jian fu ge xing lie wen kuo zhan li xue mo xing ,jie zhu MATLABruan jian fen xi ge bian liang dui gong jian lie wen kuo zhan suo xu jian qie fen li FⅡ、jian qie fen li FⅢhe zong qie xiao li Fde ying xiang 。jian qie li Fsui zhao lie wen ji jiao φde zeng jia xian zeng da hou jian xiao ;sui duan lie jiao γ0zeng jia er zeng da ;gong jian lie wen kuo zhan suo xu jian qie li Ffen bie yu qie xiao hou du b、qie xiao kuan du lhe qie xiao jiao θcheng zheng bi guan ji 。ji yu ADAMSruan jian huan jing tan jiu dao gun zhuai su 、qie xiao jiao ji gong jian zhi jing deng di zeng shi ,gong jian suo shou jian qie li de bian hua gui lv ;li yong ABAQUSruan jian dui gong jian lie wen kuo zhan jia yi shu zhi mo ni ,bing fen xi qie xiao jiao he dao gun zhuai su bu tong shi lie wen kuo zhan ying li ying bian bian hua qing kuang 。zong qie xiao li Fhe jian qie fen li FⅡsui dao gun zhuai su zeng jia you ping wen zhuai wei zeng chang qu shi ,sui qie xiao jiao cheng xian zeng da hou jian xiao qu shi ,yu gong jian zhi jing cheng zheng bi qu shi ;jian qie fen li FⅢsui zhuai su zeng jia cheng zeng chang qu shi ,sui qie xiao jiao cheng xian jian xiao hou zeng da de qu shi ,sui gong jian zhi jing zeng jia cheng xian zeng chang hou ping wen qu shi 。ji yu wei chuan suan fa ,yi de dao an zhuang jiao βhe dao ju wei jiao φwei she ji bian liang ,yi qie xiao gong lv wei mu biao han shu gou jian shu xue mo xing ,yun yong MATLABruan jian jin hang you hua ,you hua hou de gu shi xiao pian ji de neng liang li yong lv di gao le yao 2%。yi dao gun wei zhi zao dui xiang ,yi you hua jie guo wei jia gong can shu ,shua ze jia gong she bei ,dui gu shi xiao pian ji dao gun jia gong gong yi lu xian jia yi fen xi 。
论文参考文献
论文详细介绍
论文作者分别是来自东北林业大学的王海涛，发表于刊物东北林业大学2019-11-18论文，是一篇关于鼓式削片机论文,切削能耗论文,刀辊论文,优化设计论文,东北林业大学2019-11-18论文的文章。本文可供学术参考使用，各位学者可以免费参考阅读下载，文章观点不代表本站观点，资料来自东北林业大学2019-11-18论文网站，若本站收录的文献无意侵犯了您的著作版权，请联系我们删除。
标签：鼓式削片机论文; 切削能耗论文; 刀辊论文; 优化设计论文; 东北林业大学2019-11-18论文;