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当前位置: 首页 > 文章 > 基于形态谱和形状特征的平面四杆机构设计方法 农业机械学报 2006,37 (10) 116-119+107
Position: Home > Articles > Synthesize Four-bar Linkage Based on the Curve's Morphological and Shape Characteristics Transactions of the Chinese Society for Agricultural Machinery 2006,37 (10) 116-119+107

基于形态谱和形状特征的平面四杆机构设计方法

作  者：
翁桂荣;饶海涛;钱志良
单  位：
苏州大学机电工程学院;湖州师范学院信息工程系
关键词：
机构综合;形状谱;形状特征;神经网络
摘  要：
连杆轨迹曲线与连杆机构参量之间存在着复杂的非线性关系,用具有旋转、缩放、平移不变特性的形状谱和几何参数作为联合特征,描述了连杆轨迹曲线的结构形态特征和整体形状特征,并构建曲线形态的识别、比较方法,实现了连杆轨迹曲线描述最小的数据冗余;利用人工神经网络拟合了连杆轨迹曲线与连杆机构之间的非线性关系,获取与预期轨迹最为吻合的连杆曲线参数,实现了机构的快速综合设计。以512幅连杆曲线图像为学习库,64幅图像为工程测试样本的实验数据说明了本文方法的可行性,并分析了误差产生的原因。
译  名：
Synthesize Four-bar Linkage Based on the Curve's Morphological and Shape Characteristics
作  者：
Weng Guirong1 Rao Haitao2 Qian Zhiliang1 (1.Suzhou University 2.Huzhou Teachers College)
关键词：
Mechanism synthesis, Morphological spectrum, Shape characteristic, Neural network
摘  要：
There is a complicated nonlinear relation between the coupler curve of the four-bar linkage and its configuration parameters. The morphological characteristics are invariant moments by orientation, scale and position. The morphological characteristics by the coupler curve of the four-bar linkage and geometry characteristics as the united characteristics were described, and some methods to identify and compare the curves were built, the minimal data redundancy of the curves were achieved, finally the nonlinear relationship between the characteristics of curves and the parameters by using neural network was synthesized and the characteristics of the curves which were close to the anticipated target to realize the quick synthetic design of the linkage were chosen. 512 images have been used as study samples and 64 images were used as test samples. The data of the experiment explained the feasibility of the method and the cause of the error was analyzed.

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