,A hybrid biogeography-based optimization method for the inverse kinematics problem of an 8-DOF redu

来源 :浙江大学学报(英文版)(C辑:计算机与电子) | 被引量 : 0次 | 上传用户:s66_ch
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The redundant humanoid manipulator has characteristics of multiple degrees of freedom and complex joint structure, and it is not easy to obtain its inverse kinematics solution. The inverse kinematics problem of a humanoid manipulator can be formulated as an equivalent minimization problem, and thus it can be solved using some numerical optimization methods. Biogeography-based optimization (BBO) is a new biogeography inspired optimization algorithm, and it can be adopted to solve the inverse kinematics problem of a humanoid manipulator. The standard BBO algorithm that uses traditional migration and mutation operators suffers from slow convergence and prematurity. A hybrid biogeography-based optimization (HBBO) algorithm, which is based on BBO and differential evolution (DE), is presented. In this hybrid algorithm, new habitats in the ecosystem are produced through a hybrid migration operator, that is, the BBO migration strategy and DE/best/1/bin differential strategy, to alleviate slow convergence at the later evolution stage of the algorithm. In addition, a Gaussian mutation operator is adopted to enhance the exploration ability and improve the diversity of the population. Based on these, an 8-DOF (degree of freedom) redundant humanoid manipulator is employed as an example. The end-effector error (position and orientation) and the‘away limitation level’ value of the 8-DOF humanoid manipulator constitute the fi tness function of HBBO. The proposed HBBO algorithm has been used to solve the inverse kinematics problem of the 8-DOF redundant humanoid manipulator. Numerical simulation results demonstrate the effectiveness of this method.
其他文献
该研究以棉属(Gossypium)中的草棉(G.herbaceum L.)、亚洲棉(G.arboreum L.)、陆地棉(G.hirsutum L.)和海岛棉(G.baradense L.)四个栽培种的21个品种的种子和3个陆地棉品
在科学技术高速发展的今天,知识经济的概念已深入到全球经济的方方面面,对高质量和高素质人才的需求已提到了新的高度.
新发现的玉米雄性不育基因ms 前人已用B-A易位系定位到第4染色体上,该研究采用RFLP及RAPD方法对其进行分子标记定位研究.以6960(ms ms )为母本与自交系中黄17(MsMs)配制的回
企业报不归属于政治性党报,但同样具有舆论监督作用。近年来,《新金山报》在新闻改革中,从石化总厂实际出发,探索进行舆论监督的路子,有所成效。关于职工家属公房分配问题的
倒伏是制约小麦产量进一步提高的主要因素。本文主要研究了小麦茎秆特性及其相关性状与小麦抗倒伏的关系,通过分析两年表型性状,筛选出抗倒伏性较强的品种,为抗倒伏育种提供亲本材料。本研究于2013和2014年分别测定了232份小麦品种资源的地上鲜重、株高、重心高度、茎秆折断力、茎秆强度、木质素含量等相关倒伏指标。并分析:(1)232份小麦品种资源地上鲜重、株高、重心高度、茎秆折断力、茎秆强度与倒伏指数相关
Weak L1 signal acquisition in a high dynamic environment primarily faces a challenge:the integration peak is neg-atively influenced by the possible bit sign rev
在一个地区、一个单位,怎样才能较快地形成一支坚强的通讯报道队伍,从而带动宣传报道工作蓬勃开展起来? 许多通讯报道先进单位的主要经验之一,就是重视抓广大业余通讯员的培
该研究包括三部份:Ⅰ.不同生态压力下SE21S等籼型水稻核不育系(材料)育性转换特性研究;Ⅱ.SE21S等籼型水稻核不育系(材料)杂种优势和配合力研究;Ⅲ.SE21S核不育性遗传学研究.
We develop a new kind of underwater inductive coupling power transfer (ICPT) system to evaluate wireless power transfer in autonomous underwater vehicle (AUV) d
该研究旨在探讨和建立不依赖于离体再生技术的棉花基因转化实验系统--花粉介导的基因转化方法,最终克服基因型限制;运用实验生物学方法,探讨花粉介导法实现基因转化的某些分