共查询到18条相似文献,搜索用时 171 毫秒
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提出了特种机器人技术在缆索清洗、涂装、检查方面应用的新思想。在缆索人工涂装的基础上,研制了不同阶段的爬升机构模型,并提出了适于螺旋六棱柱缆索爬升的新机构。解决了机器人在大倾斜度缆索上爬升的难题,为特种机器人在极限环境中的应用提供了一个新的范例。 相似文献
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缆索涂装机器人(CPR)爬升机构的研制 总被引:6,自引:0,他引:6
提出了特各只技术在缆索清洗、涂装、检查方面应用的新思想。在缆索人工涂装的基础上,研制了不同阶段的爬升机构模型,并提出了适于螺旋六棱柱的新机构。解决了机器人在大倾斜度缆索上爬升的难题,为特种机器人在极限环境中的应用提供了一个新的范便。 相似文献
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Mckibben气动肌肉是一种使用比较广泛的气动人工肌肉,该文介绍了Mckibben气动肌肉的基本特性,分析了Mckibben气动肌肉在爬升和爬升机器人中的应用优势,并给出一些应用实例,最后指出了Mckibben气动肌肉在应用到爬升和爬行机器人时要克服的一些困难。 相似文献
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在役缆索自动涂装研究动向 总被引:1,自引:0,他引:1
缆索涂装是影响斜拉桥等大型建筑结构美观的关键。在国内外相关研究基础上,对自动爬缆机构和缆索自动涂装系统的设计进行了讨论,指出电动摩擦轮式爬缆机构和电动缆索涂装系统等组成的缆索涂装机器人能胜任在役缆索自动涂装工作。 相似文献
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Fengyu Xu Lei Wang Xingsong Wang Guoping Jiang 《Journal of Mechanical Science and Technology》2013,27(5):1479-1492
A special cable inspection robot is designed to inspect automatically the cables of a cable-stayed bridge. The free vibration equation of the cable-robot system is derived firstly to study the dynamic characteristics and safety performance of the system. Then, the effect of the robot on the cable natural frequency is discussed, and the dynamic response equation when a robot is climbing at a constant speed is deduced. Furthermore, the effect of the cable vibration on the robot’s climbing ability is studied. The natural frequency characteristics of the robot are analyzed and optimized to avoid the resonance between the cable and the robot, using a finite element model. Additionally, dynamic cable responses are simulated under different conditions wherein the robot mass are 10 and 200 kg, and the speeds are 0.2 and 0.3 m/s, respectively. At last, to demonstrate further the dynamic characteristics of the cable-robot system experimentally, cables are set up on the Junshan highway bridge over the Yangtze river. Similar experimental models of these cables are constructed, and vibration experiments are conducted to validate the theoretical calculation. The results show that a light robot has little effects on the cable vibration amplitude and vibration acceleration; this confirms the safety of the cable. 相似文献
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Mahdi BAMDAD 《Frontiers of Mechanical Engineering》2013,8(4):350
Cable-suspended manipulators are used in large scale applications with, heavy in weight and long in span cables. It seems impractical to maintain cable assumptions of smaller robots for large scale manipulators. The interactions among the cables, platforms and actuators can fully evaluate the coupled dynamic analysis. The structural flexibility of the cables becomes more pronounced in large manipulators. In this paper, an analytic solution is provided to solve cable vibration. Also, a closed form solution can be adopted to improve the dynamic response to flexibility. The output is provided by the optimal torque generation subject to the actuator limitations in a mechatronic sense. Finally, the performance of the proposed algorithm is examined through simulations. 相似文献
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爬壁机器人是指能够依附在物体的表面进行多自由度移动并完成作业的机电系统,特别适用于执行特殊任务,因而具有良好的应用前景和广泛的市场需求。根据黏附机理的不同,爬壁机器人可分为负压吸附、静电黏附、仿壁虎干黏附、仿生湿黏附等类型。从黏附机理、应用范围以及黏附特点三个方面概述了爬壁机器人领域的国内外研究现状,为统一分析比较不同种类爬壁机器人的负载性能,提出基于比黏附能密度的机器人整体黏附性能分析方法,并为解决其大负载和小体积之间的矛盾提出新的材料和结构设计思路,分析微型爬壁机器人在航空发动机故障检测领域的应用前景,总结出其在材料智能化、驱动新型化、体积小型化和黏附机理协同化等方向的发展趋势。 相似文献
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对自行设计研制的并联机构型四履带足机器人行走机构的越障能力进行了分析,给出了该机器人可以越过的最大垂直高度与车体参数之间的关系,并与普通的四履带和双履带行走机构进行比较,证明了该行走机构具有很强的越障能力和越障平稳性。 相似文献
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Soft cable-driven systems have been employed in many assembled mechanisms, such as industrial robots, parallel kinematic mechanism machines, medical devices, and humaniform hands. A pre-stretching process is necessary to guarantee the quality of cable-driven systems during the assembly process. However, the stress relaxation of cables becomes a critical concern during long-term operation. This study investigates the e ects of non-uniform deformation and long-term stress relaxation of the driven cables owing to moving parts in the system. A simple closed-loop cable-driven system is built and an alternating load is applied to it to replicate the operation of transmission cables.Under di erent experimental conditions, the cable tension is recorded and the boundary data are selected to be curve-fitted. Based on the fitted results, a formula is presented to estimate the stress relaxation of cables to evaluate the assembly performance. Further experimental results show that the stress relaxation is mainly caused by cable creep and the assembly procedure. To remove the influence of the assembly procedure, a modified pre-stretching assembly method based on the stress relaxation theory is proposed and verification experiments are performed.Finally, the assembly performance is optimized using a cable-driven surgical robot as an example. This paper proposes a dual stretching method instead of the pre-stretching method to assemble the cable-driven system to improve its performance and prolong its service life. 相似文献