虚拟样机仿真的甘蔗扶蔗器参数优化
针对现有甘蔗整杆扶起式收割机的甘蔗扶蔗机构存在扶起效果不佳、效率不高等缺点以及甘蔗扶蔗器因结构和作业参数设计不合理而造成甘蔗难以扶起等问题,以60＆#176;安装角的等螺距螺旋式扶蔗器为研究对象,在已有甘蔗扶蔗器相关参数的基础之上,应用SolidWorks建立甘蔗扶蔗器三维模型,并将此三维模型导入到ADAMS软件中进行运动仿真模拟.通过对该甘蔗扶蔗器运动学模型仿真分析表明,在0～1.5s时扶蔗器未接触到甘蔗,甘蔗质心垂直位移没有变化；1.5～4.5s时甘蔗被扶蔗器扶起,质心垂直位移逐渐增大；4.5s以后由于没有模拟切割部分而出现位移的波动.采用以扶蔗器转速、螺距、前进速度为影响因子的3因子3水...
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| Published in | 浙江大学学报（农业与生命科学版） Vol. 40; no. 1; pp. 111 - 118 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
浙江大学生物系统工程与食品科学学院,杭州,310058
2014
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1008-9209 |
| DOI | 10.3785/j.issn.1008-9209.2013.03.152 |
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| Abstract | 针对现有甘蔗整杆扶起式收割机的甘蔗扶蔗机构存在扶起效果不佳、效率不高等缺点以及甘蔗扶蔗器因结构和作业参数设计不合理而造成甘蔗难以扶起等问题,以60＆#176;安装角的等螺距螺旋式扶蔗器为研究对象,在已有甘蔗扶蔗器相关参数的基础之上,应用SolidWorks建立甘蔗扶蔗器三维模型,并将此三维模型导入到ADAMS软件中进行运动仿真模拟.通过对该甘蔗扶蔗器运动学模型仿真分析表明,在0～1.5s时扶蔗器未接触到甘蔗,甘蔗质心垂直位移没有变化；1.5～4.5s时甘蔗被扶蔗器扶起,质心垂直位移逐渐增大；4.5s以后由于没有模拟切割部分而出现位移的波动.采用以扶蔗器转速、螺距、前进速度为影响因子的3因子3水平全面试验方法,以甘蔗扶起高度作为评价指标,对扶蔗器结构和工作参数进行虚拟全面试验寻找最优组合,并利用MATLAB软件进行试验数据方差分析.结果表明,当扶蔗器转速为120r/min,螺距为360mm,前进速度为350mm/s时,扶蔗器对60＆#176;侧倒伏的甘蔗扶起高度最大为186.9mm,并且3个因子相互存在交互作用,前进速度对甘蔗扶起高度影响是最强的,这将为扶蔗器的改进提供理论依据. |
|---|---|
| AbstractList | 针对现有甘蔗整杆扶起式收割机的甘蔗扶蔗机构存在扶起效果不佳、效率不高等缺点以及甘蔗扶蔗器因结构和作业参数设计不合理而造成甘蔗难以扶起等问题,以60＆#176;安装角的等螺距螺旋式扶蔗器为研究对象,在已有甘蔗扶蔗器相关参数的基础之上,应用SolidWorks建立甘蔗扶蔗器三维模型,并将此三维模型导入到ADAMS软件中进行运动仿真模拟.通过对该甘蔗扶蔗器运动学模型仿真分析表明,在0～1.5s时扶蔗器未接触到甘蔗,甘蔗质心垂直位移没有变化；1.5～4.5s时甘蔗被扶蔗器扶起,质心垂直位移逐渐增大；4.5s以后由于没有模拟切割部分而出现位移的波动.采用以扶蔗器转速、螺距、前进速度为影响因子的3因子3水平全面试验方法,以甘蔗扶起高度作为评价指标,对扶蔗器结构和工作参数进行虚拟全面试验寻找最优组合,并利用MATLAB软件进行试验数据方差分析.结果表明,当扶蔗器转速为120r/min,螺距为360mm,前进速度为350mm/s时,扶蔗器对60＆#176;侧倒伏的甘蔗扶起高度最大为186.9mm,并且3个因子相互存在交互作用,前进速度对甘蔗扶起高度影响是最强的,这将为扶蔗器的改进提供理论依据. S225.5+3; 针对现有甘蔗整杆扶起式收割机的甘蔗扶蔗机构存在扶起效果不佳、效率不高等缺点以及甘蔗扶蔗器因结构和作业参数设计不合理而造成甘蔗难以扶起等问题,以60°安装角的等螺距螺旋式扶蔗器为研究对象,在已有甘蔗扶蔗器相关参数的基础之上,应用SolidWorks建立甘蔗扶蔗器三维模型,并将此三维模型导入到ADAMS软件中进行运动仿真模拟.通过对该甘蔗扶蔗器运动学模型仿真分析表明,在0～1.5s时扶蔗器未接触到甘蔗,甘蔗质心垂直位移没有变化；1.5～4.5s时甘蔗被扶蔗器扶起,质心垂直位移逐渐增大；4.5s以后由于没有模拟切割部分而出现位移的波动.采用以扶蔗器转速、螺距、前进速度为影响因子的3因子3水平全面试验方法,以甘蔗扶起高度作为评价指标,对扶蔗器结构和工作参数进行虚拟全面试验寻找最优组合,并利用MATLAB软件进行试验数据方差分析.结果表明,当扶蔗器转速为120r/min,螺距为360mm,前进速度为350mm/s时,扶蔗器对60°侧倒伏的甘蔗扶起高度最大为186.9mm,并且3个因子相互存在交互作用,前进速度对甘蔗扶起高度影响是最强的,这将为扶蔗器的改进提供理论依据. |
| Abstract_FL | In the southern China , the sugarcane is mostly planted on the slopes and hilly areas . Because of the influence caused by the typhoons and monsoons , the sugarcane always render in the state of lodging and bending . Lifting up the sugarcane is the first step of the mechanized harvesting of sugarcane . It is demanded that the harvest mechanic of sugarcane should be adapt to the planting patterns and growth condition , in order to lift up the sugarcane in different lodging status . Currently , the design and the research method on sugarcane lifter was traditional , which usually did static analysis only and did not take the dynamic characteristics into consideration . The propped effect of the existing mechanism is poor and the efficiency is not really high , meanwhile , the sugarcane lifter has problems caused by the unreasonable structure design and operation parameters . In order to solve these problems , the virtual prototype technology will be used to do the virtual experiment on sugarcane lifter .At the same time , the technology will also analyze its key technology , save the cost of physical prototype research and development , and shorten the development cycle of the physical prototype as well . The investigated subject of this paper was mainly the sugarcane lifter with the 60° installation angle and the equivalent pitch spiral . Aimed at the problems of the sugarcane lifting caused by the unreasonable structure design and the operation parameters , the three-dimensional model would be imported into the ADAMS software to do the dynamic simulation . The method of three levels and three factors comprehensive test was used , whose impact factors were sugarcane lifter speed , pitch and the forward speed . Regarding the lifting height as the evaluation index , it intended to find the optimum combination for the virtual experiment of the sugarcane lifter structure and the working parameters , meanwhile , the test data variance would be analyzed by the MATLAB software . Through the analysis of the dynamic simulation of the sugarcane lifter , it was clear that when the time was 0 to 1.5 s , the sugarcane lifter would not get in touch with the sugarcane , and as a result , the centroid vertical displacement was not changed accordingly ;but when the time was 1.5 to 4.5 s , the sugarcane would be lifted by the sugarcane lifter , and the centroid vertical displacement was correspondingly increased gradually . When the time was more than 4.5 s , the fluctuations of the centroid vertical displacement would come out because of the non-existence of the simulation of cutting part.In the combination of the ADAMS virtual comprehensive test , the best operating and structure parameters for the angle of 60° installation sugarcane lifter was that :when the speed of the sugarcane lifter was up to 120 r/min , the pitch of thread was 360 mm , and the forward speed was 350 mm/s , the lifting height of the 60° side lodging sugarcane would reach the maximum 186.9 mm . In addition , the three factors have mutual interactions with each other , and this moment was the strongest time that the forward speed affected the height of the sugarcane lifter , all of which will eventually provide the theory basis for the improvement of sugarcane lifter . |
| Author | 胡金冰 王俊 胡莹 |
| AuthorAffiliation | 浙江大学生物系统工程与食品科学学院,杭州310058 |
| AuthorAffiliation_xml | – name: 浙江大学生物系统工程与食品科学学院,杭州,310058 |
| Author_FL | Wang Jun Hu Ying Hu Jinbing |
| Author_FL_xml | – sequence: 1 fullname: Hu Jinbing – sequence: 2 fullname: Wang Jun – sequence: 3 fullname: Hu Ying |
| Author_xml | – sequence: 1 fullname: 胡金冰 王俊 胡莹 |
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| Keywords | 甘蔗 扶蔗器 optimization 优化 virtual test 虚拟试验 lifter sugarcane |
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| Notes | sugarcane;lifter;virtual test;optimization 33-1247/S In the southern China , the sugarcane is mostly planted on the slopes and hilly areas . Because of the influence caused by the typhoons and monsoons , the sugarcane always render in the state of lodging and bending . Lifting up the sugarcane is the first step of the mechanized harvesting of sugarcane . It is demanded that the harvest mechanic of sugarcane should be adapt to the planting patterns and growth condition , in order to lift up the sugarcane in different lodging status . Currently , the design and the research method on sugarcane lifter was traditional , which usually did static analysis only and did not take the dynamic characteristics into consideration . The propped effect of the existing mechanism is poor and the efficiency is not really high , meanwhile , the sugarcane lifter has problems caused by the unreasonable structure design and operation parameters . In order to solve these problems , the virtual prototype technology will be used to do |
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| Snippet | 针对现有甘蔗整杆扶起式收割机的甘蔗扶蔗机构存在扶起效果不佳、效率不高等缺点以及甘蔗扶蔗器因结构和作业参数设计不合理而造成甘蔗难以扶起等问题,以60＆#176;安装角的等... S225.5+3; 针对现有甘蔗整杆扶起式收割机的甘蔗扶蔗机构存在扶起效果不佳、效率不高等缺点以及甘蔗扶蔗器因结构和作业参数设计不合理而造成甘蔗难以扶起等问题,以60°安装角... |
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| StartPage | 111 |
| SubjectTerms | 优化 扶蔗器 甘蔗 虚拟试验 |
| Title | 虚拟样机仿真的甘蔗扶蔗器参数优化 |
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