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基于ANSYS Workbench圆盘割草压扁机机架模态分析 被引量:7
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作者 杜韧 李佳栋 +5 位作者 赵忠贤 梦奇凯 赵子开 梁策 赵川 刘春雨 《机械设计》 CSCD 北大核心 2019年第S02期63-66,共4页
针对9GYQ3.0型圆盘割草压扁机割茬高度不一致的问题,对割草压扁机机架有限元模型进行模态分析,首先介绍割草压扁机的主要结构和主要技术参数,然后对机架模态分析过程进行详细介绍,最后得出机架前6阶固有频率和振型特征,为后续进行随机... 针对9GYQ3.0型圆盘割草压扁机割茬高度不一致的问题,对割草压扁机机架有限元模型进行模态分析,首先介绍割草压扁机的主要结构和主要技术参数,然后对机架模态分析过程进行详细介绍,最后得出机架前6阶固有频率和振型特征,为后续进行随机振动分析、结构动态设计及设备性能研究奠定基础。 展开更多
关键词 圆盘割草压扁机 模态分析 WORKBENCH 机架
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圆捆机拾捡器的运动学仿真和试验验证 被引量:3
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作者 杜韧 赵忠贤 +3 位作者 王健 李佳栋 孟奇凯 宋博威 《机械设计》 CSCD 北大核心 2019年第A01期167-171,共5页
为了解决92YG-1.2型圆捆机凸轮盘滑道滚轮(轴承)易损坏的问题,经过优化设计,用经过优化后的拾捡器构件参数建立了捡拾器运动学模型,给出了解析表达式,并运用MATLAB对捡拾器运动情况仿真,能准确地求得滑道及弹齿任一点的运动轨迹、速度... 为了解决92YG-1.2型圆捆机凸轮盘滑道滚轮(轴承)易损坏的问题,经过优化设计,用经过优化后的拾捡器构件参数建立了捡拾器运动学模型,给出了解析表达式,并运用MATLAB对捡拾器运动情况仿真,能准确地求得滑道及弹齿任一点的运动轨迹、速度或加速度数值和图形。由MATLAB仿真得到的曲线图可知,经过优化后的圆捆机拾捡器构件在仿真过程中不存在速度、加速度突变的位置,优化参数合理。通过田间试验,验证了设计的合理性。 展开更多
关键词 圆捆机 拾捡器 凸轮机构 MATLAB仿真
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圆捆机成型室结构改进及静动态分析 被引量:2
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作者 杜韧 孟奇凯 +2 位作者 赵忠贤 李佳栋 宋博威 《机械设计》 CSCD 北大核心 2020年第S01期83-86,共4页
针对92YG-1.2型圆捆机在草捆最后成型阶段,液压系统压力跳跃攀增,捆出的草捆密度偏低等问题进行研究。通过对成型室结构受力分析可知,最后阶段的成捆压力主要由液压系统提供,为此改进成型室结构,将其设计为螺线型。利用Workbench仿真软... 针对92YG-1.2型圆捆机在草捆最后成型阶段,液压系统压力跳跃攀增,捆出的草捆密度偏低等问题进行研究。通过对成型室结构受力分析可知,最后阶段的成捆压力主要由液压系统提供,为此改进成型室结构,将其设计为螺线型。利用Workbench仿真软件分别对改进前与改进后的成型室进行静力学仿真分析,发现改进后的成型室前机架和后门受力变形更大,改进后结构最大应力为改进前的3倍,与理论分析结果吻合。通过模态分析结果可知改进后成型室前6阶固有频率的范围分布在27.138~91.03 Hz之间,与激励频率0~15 Hz不在同一范围,工作时不会引起成型室发生共振。研究结果可为相关机械结构设计提供参考。 展开更多
关键词 成型室 螺线型 静力学分析 模态分析
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新型圆草捆缠膜机设计及试验研究 被引量:2
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作者 杜韧 孟奇凯 +3 位作者 赵忠贤 李佳栋 宋博威 马文朝 《机械设计》 CSCD 北大核心 2019年第S02期59-62,共4页
针对传统缠膜机缠膜直径固定的缺点设计出一种新型直径可调式圆草捆缠膜机,缠膜直径为0.5~1.2 m,可以实现对不同直径的圆草捆进行缠膜。该机分为上下两个部分,通过上部分的转动,对圆草捆进行缠膜。通过调节两根轴的轴间距,从而适应不同... 针对传统缠膜机缠膜直径固定的缺点设计出一种新型直径可调式圆草捆缠膜机,缠膜直径为0.5~1.2 m,可以实现对不同直径的圆草捆进行缠膜。该机分为上下两个部分,通过上部分的转动,对圆草捆进行缠膜。通过调节两根轴的轴间距,从而适应不同体积大小的圆草捆。使用SolidWorks构建机器的3D模型,并使用Workbench软件对缠膜机机架进行静力学分析。对已生产出的机器进行了试验,并将得到的数据进行分析,得到该机器工作性能最佳时的参数配比。 展开更多
关键词 缠膜机 直径可调 静力学分析 数据分析
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Integration of eco-civilization education into ideological and political class in colleges and universities 被引量:1
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作者 meng qi-kai QIU meng-fan 《Ecological Economy》 2018年第2期135-140,共6页
The construction of eco-civilization is an important part of socialist construction in China, and its achievements are related to the cultivation and effective implementation of the concept of sustainable development.... The construction of eco-civilization is an important part of socialist construction in China, and its achievements are related to the cultivation and effective implementation of the concept of sustainable development. In his report to the Nineteenth National Congress, President Xi Jin-ping pointed out that the construction of eco-civilization is an important content that affects our country and the global ecological environment. Clear ideas and measures to solve the people's needs for a better life and development imbalance between the contradictions. This paper expounds the relationship between ideological and political education and eco-civilization, and analyzes the role of modern ideological and political education in the construction of eco-civilization. The purpose of this paper is to clarify the modern ideological and political education and the construction of eco-civilization. The mutual relations lay the foundation for giving play to the role of modern ideological and political education in the construction of eco-civilization. 展开更多
关键词 eco-civilization ideological and political class INTEGRATION
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Building up the concept of green development by infiltrating ecological ethics into ideological education for university students
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作者 meng qi-kai QIU meng-fan 《Ecological Economy》 2019年第1期75-80,共6页
University student education is the main part of higher education in China. Therefore, the comprehensive quality of university students shows the level of higher education. Ecological literacy is the basic literacy of... University student education is the main part of higher education in China. Therefore, the comprehensive quality of university students shows the level of higher education. Ecological literacy is the basic literacy of college students under the background of green development to build socialism with Chinese characteristics. The green development education is based on the research idea of the relationship between the individual and the surrounding environment in ecology, which requires respecting the subjectivity of the active object, paying attention to the integrity and connection of the object. Compared with the traditional education, green development education pays more attention to the cultivation of moral quality and sound personality of the educated, and it can make the students understand the ecological environment. Under the premise of ecological system and the mechanism of biological growth and development, respect and love of life are formed naturally, and then the universal concern for environment and others is formed. College students, as advanced groups of young people, are leading the social fashion and influencing the social ethical environment. Ecological literacy is the new requirement of the times for college students. We should integrate the education of green development into the ideological education,make great efforts to shape the ecological ethical system of college students, and cultivate their ecological consciousness, ecological thinking and behavior habits. It is an important issue for ideological education to improve the quality of green development in an all-round way. 展开更多
关键词 ideological education ecological ethics ecological civilization the concept of green development
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Investment risk of rural family education: From the persepective of educational cost and income
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作者 meng qi-kai 《Ecological Economy》 2017年第4期313-320,共8页
With the implementation of the policy of popularization of education, rural families make the choice of interests and behavior decisions through the calculation of their own benefits and costs, and gradually become th... With the implementation of the policy of popularization of education, rural families make the choice of interests and behavior decisions through the calculation of their own benefits and costs, and gradually become the main body of rural education investment decisions. The relationship between educational cost and income plays a major role in the rural family education investment. Based on the current situation of rural education in our country, this paper focuses on the risk of rural education investment and rural education costs and benefits, and then puts forward scientific, operational measures and suggestions. 展开更多
关键词 rural family education investment cost and income investment risk
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