检索结果-南通市图书馆

第五届全球智能控制与自动化大会会议

作者： Yuliang Ma and Guangzhou ZhaoCollege of Electrical EngineeringZhejiang University Hangzhou Zhejiang Province China

＜正＞ It is important to evaluate the significance of system parameters in engineering, especially for reducing the dimension and complexity of system. The rough sets theory is introduced into evaluation the significance of system. A parameter defined by the concepts of lower and upper approximation in rough sets theory is used to estimate the significance of system parameters. The proposed method in the article is applied in fault analysis of diesel engine’s plunger and the result matches the practical one. We can get more information of the system by this method comparing with the other methods, such as K - W method and method based on information entropy.

关键词： rough sets theory system parameters evaluation significance uncertainty

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

TORQUE CAPACITY AND CONTACT EFFICIENCY OF A HALF TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSIONS

引用

Chinese Journal of Mechanical Engineering 2004年第3期17卷 457-462页

作者： Nabil Abdulla Attia Stats Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China

The automotive industry is seeking new concepts for a continuously variabletransmission (CVT) in the driveline. One possible solution for a CVT design is half toroidaltraction drive, providing a high torque capacity with quick ratio change. An analytical study on thecontact points of the half toroidal CVT has been detailed. The shapes of the contact areas amongthe input disk, power roller and output disk are considered ellipses. Mathematical equations forestimating the torque capacity, power loss due to spin action, and contact efficiency of theelliptical contacts of the half toroidal CVT are formulated and expressed in the form of integralswhich can be readily evaluated by numerical scheme. The contact efficiency calculations of the halftoroidal CVT have been developed for the proper spin point locations under the effect of systemparameters. Numerical results are presented hi graphical forms for considered parameters, which canhelp the designer to select the proper system parameters to minimize the undesirable spin effects.

关键词： Continuously variable transmission Half toroidal Elliptical contact Torquecapacity Contact efficiency system parameters Spin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：