基于约束函数的变胞机构变胞方程
- 文件大小:873.9KB
- 浏览次数:
- 发布时间:2014-03-21
文件介绍:
本资料包含pdf文件1个,下载需要1积分
变胞机构拥有多个变换的稳态和变胞态,其拓扑构态描述与分析是变胞机构结构学的难点。采用数学分析方法,探索全面、简便而准确地描述和分析变胞机构构态拓扑结构的问题。根据运动副约束的特征,定义反映运动副类型、级别、自由度、方位、性质及其随时间变化情况等诸多特征信息的参数――运动副约束函数,采用矩阵法构建以约束函数为元素的机构变胞源运动链邻接矩阵。针对合并构件、分离构件、改变构件性质、新增运动副、消除运动副及改变运动副性质等六类机构变胞方式,分别定义相应的机构变胞函数和变胞矩阵,建立相邻稳态之间变胞态的机构变胞方程。应用实例表明,所定义的运动副约束函数、运动链邻接矩阵、变胞矩阵和变胞函数等概念能简便、广泛地描述变胞机构的构态特征,基于约束函数的机构变胞方程能准确地描述和分析机构相邻稳态之间变胞态的变换过程,为变胞机构的结构分析提供一种新的途径和方法,并为进一步的变胞机构运动学和动力学分析以及机构综合研究提供理论基础。 Metamorphic mechanism has variable topology and possess multiple stable configurations.In order to represent its topological constraint and configuration transformation effectively and accurately,a set of mathematic parameters and equations is studied.The constraint function is defined according to the constraint features of kinematic joints.With constraint functions as elements,the adjacent matrix of the origin kinematic chains of metamorphic mechanism is proposed.Based on the adjacent matrices,metamorphic equations are established correspond to three metamorphic ways of linkages and three metamorphic ways of joints.According to different metamorphic ways,the metamorphic matrices and metamorphic functions are defined.The application example shows that the constraint function and the adjacent matrix can represent variable topology mechanisms conveniently and completely,as well as the metamorphic equations can be used to represent and analyze the configuration transformation of metamorphic mechanisms accurately.The method proposed provides a new way for the representation and analysis of variable topology mechanisms and lays a theoretic foundation on the kinematics and dynamics of metamorphic mechanisms.
文件列表
正在加载...请等待或刷新页面...
发表评论
更多..相关推荐
更多..最近更新
- 1SB/T 10636-2011 零售企业服务质量评价准则
- 2电子晶体管闹钟设计
- 3JC/T 2142-2012 金属冶炼用氧化镁陶瓷
- 4管道焊接技术交底书1
- 5GB/T 14983-2008 耐火材料 抗碱性试验方法
- 6机械原理课后详尽答案
- 7一套完整的建筑工程技术交底
- 8JB/T 11326-2013 内燃机管翅式油冷却器技术条件
- 9水利水电施工工程师手册
- 10YB/T 4472-2015 钢接头压接索具
- 11基坑安全施工专项方案
- 12xxx吨半挂车后桥总成设计毕业答辩PPT范例
- 13气动薄膜行程100全套CAD图纸
- 14GB/T 20120.1-2006 金属和合金的腐蚀 腐蚀疲劳试验 第1部分 循环失效试验
- 15某工业厂房建筑施工图