检索结果-南通市图书馆

2007国际机械工程与力学会议

作者： Yimin DENG Di ZHENG Faculty of Engineering Ningbo University

One of the pre-requisites for MEMS design synthesis is that the synthetic building blocks have to be prior specified by the designers. This often implies that the designers have to have a rough idea of the physical structure of the intended design before design synthesis. To help identify the necessary building blocks, this paper presents a behavioural modelling and behaviour-phenomenon-structure mapping methodology. Briefly it can be described as a sequential process of modelling the MEMS behavioural process, mapping a required behaviour to an enabling phenomenon, and extracting and retrieving the building blocks from the identified structural components. To achieve this goal, several aspects of adaptation are made to the existing design model that works for general （macro-level） product design, including the incorporation of chemical/biological/other reactions （in addition to physical interactions） and the involved substances in behaviour representation, and the exploitation of multidisciplinary phenomena and three kinds of constraints in behavioural modelling. These constraints not only enable a required behaviour to occur but also enable it to produce an output at the desired level of significance. With these strategies and methods, the building blocks for a MEMS design synthesis may be identified or developed in a formalized manner. At the end of the paper, a MEMS design synthesis case study is presented to further illustrate the proposed methodology, as well as to demonstrate its usefulness.

关键词： Behaviour Building block design synthesis MEMS

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

design of a novel side-mounted leg mechanism with high flexibility for a multi-mission quadruped earth rover BJTUBOT

引用

机械工程前沿:英文版 2023年第2期18卷 115-142页

作者： Yifan WU Sheng GUO Luquan LI Lianzheng NIU Xiao LI School of Mechanical Electronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China

Earth rover is a class of emerging wheeled-leg robots for nature exploration.At present,few methods for these robots’leg design utilize a side-mounted spatial parallel mechanism.Thus,this paper presents a complete design process of a novel 5-degree-of-freedom(5-DOF)hybrid leg mechanism for our quadruped earth rover BJTUBOT.First,a general approach is proposed for constructing the novel leg mechanism.Subsequently,by evaluating the basic locomotion task(LT)of the rover based on screw theory,we determine the desired motion characteristic of the sidemounted leg and carry out its two feasible configurations.With regard to the synthesis method of the parallel mechanism,a family of concise hybrid leg mechanisms using the 6-DOF limbs and an L1F1C limb(which can provide a constraint force and a couple)is designed.In verifying the motion characteristics of this kind of leg,we select a typical(3-UPRU&RRRR)&R mechanism and then analyze its kinematic model,singularities,velocity mapping,workspace,dexterity,statics,and kinetostatic performance.Furthermore,the virtual quadruped rover equipped with this innovative leg mechanism is built.Various basic and specific LTs of the rover are demonstrated by simulation,which indicates that the flexibility of the legs can help the rover achieve multitasking.

关键词： design synthesis parallel mechanism hybrid leg mechanism screw theory quadruped robot

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Civil Aircraft System Integration Research

Civil Aircraft System Integration Research

引用

2012年计算机应用与系统建模国际会议

作者： Li Haomin Wu Jianhua shanghai aircraft design and research institute comac

This paper according as the experience of china new civil aircraft developed, introduce the concept and methods of civil aircraft systems integration. Top-down system developed process was described. The systems integration and comprehensive approach, such as requirements analysis, functional analysis & allocation, safety assessment, system design synthesis and verification, was detailed described. This philosophy and methods have reference and inspiration effect for developing large complex systems.

关键词： Requirements analysis Functional analysis/Allocate System integration Safety assessment design synthesis Verification

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

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

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

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：