Search | Engineering

订阅投稿

首页工程期刊工程焦点工程成就工程前沿关于我们 English

资源类型

期刊论文 247

会议视频 19

年份

2023 20

2022 29

2021 35

2020 21

2019 24

2018 12

2017 27

2016 9

2015 10

2014 9

2013 9

2012 7

2011 5

2010 4

2009 2

2008 8

2007 4

2006 9

2005 3

2004 3

展开︾

关键词

智能制造 6

能源 6

发展路径 5

城市规划 4

乡村规划 3

可持续发展 3

规划 3

2035年 2

三峡工程 2

人工智能 2

发展战略 2

发展模式 2

技术预见 2

标准体系 2

汽车产业 2

环境 2

规划设计 2

路径 2

路径规划 2

展开︾

检索范围：

排序：展示方式：

Strategy for robot motion and path planning in robot taping

Qilong YUAN,I-Ming CHEN,Teguh Santoso LEMBONO,Simon Nelson LANDÉN,Victor MALMGREN

《机械工程前沿（英文）》 2016年第11卷第2期页码 195-203 doi: 10.1007/s11465-016-0390-1

摘要：

Covering objects with masking tapes is a common process for surface protection in processes like spray painting, plasma spraying, shot peening, etc. Manual taping is tedious and takes a lot of effort of the workers. The taping process is a special process which requires correct surface covering strategy and proper attachment of the masking tape for an efficient surface protection. We have introduced an automatic robot taping system consisting of a robot manipulator, a rotating platform, a 3D scanner and specially designed taping end-effectors. This paper mainly talks about the surface covering strategies for different classes of geometries. The methods and corresponding taping tools are introduced for taping of following classes of surfaces: Cylindrical/extended surfaces, freeform surfaces with no grooves, surfaces with grooves, and rotational symmetrical surfaces. A collision avoidance algorithm is introduced for the robot taping manipulation. With further improvements on segmenting surfaces of taping parts and tape cutting mechanisms, such taping solution with the taping tool and the taping methodology can be combined as a very useful and practical taping package to assist humans in this tedious and time costly work.

关键词： robot taping path planning robot manipulation 3D scanning

HTML PDF 收藏

A review of cooperative path planning of an unmanned aerial vehicle group

Hao Zhang, Bin Xin, Li-hua Dou, Jie Chen, Kaoru Hirota,brucebin@bit.edu.cn

《信息与电子工程前沿（英文）》 2020年第21卷第12期页码 1671-1814 doi: 10.1631/FITEE.2000228

摘要： As a cutting-edge branch of unmanned aerial vehicle (UAV) technology, the of a group of UAVs has attracted increasing attention from both civil and military sectors, due to its remarkable merits in functionality and flexibility for accomplishing complex extensive tasks, e.g., search and rescue, fire-fighting, reconnaissance, and surveillance. Cooperative (CPP) is a key problem for a UAV group in executing tasks collectively. In this paper, an attempt is made to perform a comprehensive review of the research on CPP for UAV groups. First, a generalized optimization framework of CPP problems is proposed from the viewpoint of three key elements, i.e., task, UAV group, and environment, as a basis for a comprehensive classification of different types of CPP problems. By following the proposed framework, a taxonomy for the classification of existing CPP problems is proposed to describe different kinds of CPPs in a unified way. Then, a review and a statistical analysis are presented based on the taxonomy, emphasizing the coordinative elements in the existing CPP research. In addition, a collection of challenging CPP problems are provided to highlight future research directions.

HTML PDF 收藏

基于遗传算法的AUV三维海底路径规划

郝燕玲,张京娟

《中国工程科学》 2003年第5卷第11期页码 56-60

摘要：

研究AUV在三维海底地形环境中的路径规划问题。针对三维地形中路径的不同特点，将路径分为3种类型。设计了优化路径的遗传算法实现方案，所提出的惩罚函数及启发性知识的使用，使算法能灵活的得到具有不同特点的最优路径。仿真实验表明了该算法的可行性与可靠性，对AUV的安全航行具有重要的理论意义及应用参考价值。

关键词：三维路径规划遗传算法海底地形水下潜器

HTML PDF 收藏

移动机器人障碍躲避的最佳路径

郭戈

《中国工程科学》 2003年第5卷第5期页码 70-75

摘要：

提出一种以障碍物和机器人位置和速度等信息为基础的障碍躲避方法，重点探讨了确定性环境下障碍躲避和转弯过程中机器人应遵循的合理路径问题，并通过证明指出了给定环境条件下实现转弯和障碍躲避的最佳路径。仿真实验表明，该结论简单有效，便于实施，具有较高的应用价值。

关键词：移动机器人超声波传感器障碍躲避路径规划最佳路径

HTML PDF 收藏

动态二叉树表示环境的A^*算法及其在足球机器人路径规划中的实现

唐平,杨宜民

《中国工程科学》 2002年第4卷第9期页码 50-53

摘要：

提出采用二叉树表示二维空间的方法，对全局路径规划和局部路径规划进行综合考虑，设计移动机器人在复杂环境下对动态障碍物进行避障的A^*算法。在足球机器人系统中进行仿真，将二叉树动态地表示球场的机器人与目标为对角线的矩型环境，使搜索范围随搜索进程动态地减小，实现了路径规划的整体优化。

关键词：动态二叉树 A^*算法路径规划

HTML PDF 收藏

基于势场导向权的改进机器人路径规划免疫算法

王孙安,吴灿阳

《中国工程科学》 2013年第15卷第1期页码 73-78

摘要：

为了解决复杂环境中移动机器人的路径规划问题，结合人工势场法计算量小的特性和人工免疫网络的自适应调节能力，提出了一种改进的路径规划免疫算法。为了提高免疫网络的搜索能力以及免疫网络的收敛性，将人工势场法的规划结果作为先验知识构建了导向权，同时将抗体命令清晰度和抗体转移后的距离变化作为变量，构建了新的抗体转移概率算子。仿真结果表明，与其他算法相比，新算法在最优规划能力和网络收敛性能方面都有明显提高。

关键词：免疫网络人工势场移动机器人路径规划

HTML PDF 收藏

Deep reinforcement learning-based critical element identification and demolition planning of frame structures

Shaojun ZHU; Makoto OHSAKI; Kazuki HAYASHI; Shaohan ZONG; Xiaonong GUO

《结构与土木工程前沿（英文）》 2022年第16卷第11期页码 1397-1414 doi: 10.1007/s11709-022-0860-y

摘要： This paper proposes a framework for critical element identification and demolition planning of frame structures. Innovative quantitative indices considering the severity of the ultimate collapse scenario are proposed using reinforcement learning and graph embedding. The action is defined as removing an element, and the state is described by integrating the joint and element features into a comprehensive feature vector for each element. By establishing the policy network, the agent outputs the Q value for each action after observing the state. Through numerical examples, it is confirmed that the trained agent can provide an accurate estimation of the Q values, and handle problems with different action spaces owing to utilization of graph embedding. Besides, different behaviors can be learned by varying hyperparameters in the reward function. By comparing the proposed method and the conventional sensitivity index-based methods, it is demonstrated that the computational cost is considerably reduced because the reinforcement learning model is trained offline. Besides, it is proved that the Q values produced by the reinforcement learning agent can make up for the deficiencies of existing indices, and can be directly used as the quantitative index for the decision-making for determining the most expected collapse scenario, i.e., the sequence of element removals.

关键词： progressive collapse alternate load path demolition planning reinforcement learning graph embedding

HTML PDF 收藏

The origins of schedule management: the concepts used in planning, allocating, visualizing and managing

Lynda M. BOURNE, Patrick WEAVER

《工程管理前沿（英文）》 2018年第5卷第2期页码 150-166 doi: 10.15302/J-FEM-2018012

摘要： Getting the in the at the has always been a major organizational challenge. In ancient times this process seems to have been accomplished based on the scheme of arrangements being contained in the leader’s mind and instructions communicated verbally. Modern approaches to solving the twin challenges of first thinking through the ‘plan’ and then communicating the plan to the people who need to do ‘ ’ use sophisticated graphics, charts, diagrams, and computations. This paper traces the development of the concepts most project managers take for granted including bar charts and critical path schedules from their origins (which are far earlier than most people think) through to the modern day. The first section of the paper looks at the development of concepts that allow the visualization of time and other data. The second looks at the shift from static representations to dynamic modeling through the emergence of computers, dynamic calculations and integrated data from the 1950s to the present time.

关键词： time management scheduling CPM PERT Gantt Critical Path bar chart

HTML PDF 收藏

Five-axis rough machining for impellers

Ruolong QI, Weijun LIU, Hongyou BIAN, Lun LI

《机械工程前沿（英文）》 2009年第4卷第1期页码 71-76 doi: 10.1007/s11465-009-0010-4

摘要： The most important components used in aerospace, ships, and automobiles are designed with free form surfaces. An impeller is one of the most important components that is difficult to machine because of its twisted blades. Rough machining is recognized as the most crucial procedure influencing machining efficiency and is critical for the finishing process. An integrated rough machining course with detailed algorithms is presented in this paper. An algorithm for determining the minimum distance between two surfaces is applied to estimate the tool size. The space between two blades that will be cleared from the roughcast is divided to generate CC points. The tool axis vector is confirmed based on flank milling using a simple method that could eliminate global interference between the tool and the blades. The result proves that the machining methodology presented in this paper is useful and successful.

关键词： five-axis impeller tool-path planning flank milling ruled surface

HTML PDF 收藏

基于Lü系统的移动机器人完成特殊情况下全覆盖路径规划的参数值选择策略 Research Article

李彩虹1,刘聪1,宋勇2,梁振英1

《信息与电子工程前沿（英文）》 2023年第24卷第2期页码 231-244 doi: 10.1631/FITEE.2200211

摘要：针对移动机器人完成特殊情况下的全覆盖路径规划（complete coverage path planning, CCPP）任务，基于Lü系统，提出一种构造混沌机器人的系统参数值综合选择策略，以满足特殊任务下遍历轨迹高随机性和高覆盖率的需求

关键词：混沌移动机器人；Lü系统；全覆盖路径规划；参数值选择策略；李雅普诺夫指数；皮尔逊相关系数

HTML PDF 收藏

随机环境中的自主水下航行器鲁棒全局路径规划 Research Article

张佳欣1,2,刘妹琴1,2,3,张森林1,2,郑荣濠1,2

《信息与电子工程前沿（英文）》 2022年第23卷第11期页码 1658-1672 doi: 10.1631/FITEE.2200026

摘要：

本文提出一种在随机局部路径成本下使自主水下航行器在作业海域选择性地完成部分预定任务的路径规划器。该问题被表述为定向越野问题的变体。本文在遗传算法（GA）的基础上，提出一种基于贪心策略的遗传算法（GGA）。该算法包含一种新颖的通过在进化过程中将不可行个体映射到可行解空间来提高优化效率的重生算子，并以差分进化规划器计算确定性局部路径成本。局部路径成本的不确定性来自不可预测的障碍物、测量误差和轨迹跟踪误差。为了提高规划器在不确定环境下的鲁棒性，设计了一种用于路径评估的采样策略，通过对局部路径的概率密度函数多次采样，得到对路径实际成本的估计。通过蒙特卡罗仿真实验验证所提规划器的优越性和有效性。仿真结果表明，所提出的GGA在总收益方面优于同类算法4.7%–¬¬24.6%，而基于抽样的GGA路径规划器（S-GGARP）相较于普通的GGA路径规划器（GGARP）提高了5.5%的平均收益。

关键词：自主水下航行器；路径规划；遗传算法；定向越野问题；随机路径成本

HTML PDF 收藏

国土空间韧性规划建设整体框架与发展路径研究

王威,朱峻佚,费智涛,马东辉,杜修力

《中国工程科学》 2023年第25卷第3期页码 209-218 doi: 10.15302/J-SSCAE-2023.03.017

摘要：

当前，各类自然灾害、突发公共事件频发，国土空间安全特别是灾害风险防控与国土空间韧性规划建设面临严峻挑战，有必要将韧性规划与国土空间规划融合，提高国土空间的防灾减灾能力，满足国家对国土高质量发展的要求。本文通过分析我国国土空间韧性规划建设的现状及存在的问题，提出了国土空间韧性规划建设的目标和总体思路，构建了国土空间韧性规划建设的整体框架，从技术方法层面、空间治理层面和工作体系层面总结了国土空间韧性规划建设的发展路径。为推动国土空间韧性规划建设，本文从优化法律法规体系、政策体系、技术标准体系3 个方面提出了对策建议，以期为我国开展国土空间韧性规划建设研究与实践提供决策参考。

关键词：国土空间；韧性规划；整体框架；韧性城市；防灾减灾；灾害治理

HTML PDF 收藏

特殊任务下基于Chebychev映射的移动机器人 Article

Cai-hong LI, Yong SONG, Feng-ying WANG, Zhi-qiang WANG, Yi-bin LI

《信息与电子工程前沿（英文）》 2017年第18卷第9期页码 1305-1319 doi: 10.1631/FITEE.1601253

摘要：本文提出一种在特殊任务下基于Chebychev映射的移动机器人混沌全覆盖路径规划器的设计新策略。所设计的混沌路径规划器包含一个二维的Chebychev映射，该映射由两个一维的Chebychev映射构建而成。对规划器所产生的时间序列，进行反正弦变换，可以改善系统的混沌特性和均匀分布特性，从而提高机器人在完成特殊任务时的覆盖率和随机特性。通过仿射变换，Chebychev混沌系统映射到机器人工作空间的可行区域内，然后设计有障碍物环境下全覆盖路径规划的通用方法。仿真结果显示，所设计的混沌路径规划器在可行空间能够安全运行，不需要设计避障算法。所设计策略能够满足特殊任务下随机性、遍历性和高效率的需求。

关键词：移动机器人；Chebychev映射；混沌；仿射变换；全覆盖路径规划

HTML PDF 收藏

一种满足末端姿态约束的工业机械臂分布式变密度路径搜索与简化方法 Research Article

王进1,2,厉圣杰1,2,张海运3,陆国栋1,2,冯奕畅1,2,王鹏1,2,李基拓1,2

《信息与电子工程前沿（英文）》 2023年第24卷第4期页码 536-552 doi: 10.1631/FITEE.2200353

摘要：在许多机器人操作场景中，末端执行器的运动姿态约束是机器人完成焊接、喷涂、搬运、码垛等常见任务必不可少的。同时，姿态约束下的路径规划过程中涉及到逆运动学、碰撞检测和空间搜索等关键问题，在实际应用中难以兼顾令人满意的效率和约束效果。针对这些问题，提出一种带末端约束的工业机器人分布式变密度路径规划方法（DVDP-AC）。首先，针对运动学逆解提出位置–姿态约束重构（PACR）方法。然后，设计了具有单步安全球（SSS）的分布式有向距离场（DSDF）模型，以提高碰撞检测的效率。在此基础上，在笛卡尔空间中采用变密度路径搜索方法，并进一步提出一种考虑路径可达性的前向路径简化方法（FSPS），以自适应地快速消除冗余的路径点。最后，实验结果验证了所提出的DVDP-AC方法在末端执行器姿态约束下的性能和有效性，并与目前主流路径规划方法进行比较，说明了该方法的特点和优势。

关键词：路径规划；工业机器人；分布式有向距离场；姿态约束；路径简化

HTML PDF 收藏

Rise of aluminum-chalcogen batteries: A promising path to sustainable energy storage

《能源前沿（英文）》 2023年第17卷第5期页码 567-568 doi: 10.1007/s11708-023-0887-3

摘要： Rise of aluminum-chalcogen batteries: A promising path to sustainable energy storage

关键词： promising path energy

HTML PDF 收藏

标题作者时间类型操作

Strategy for robot motion and path planning in robot taping

Qilong YUAN,I-Ming CHEN,Teguh Santoso LEMBONO,Simon Nelson LANDÉN,Victor MALMGREN

期刊论文

A review of cooperative path planning of an unmanned aerial vehicle group