共查询到19条相似文献,搜索用时 187 毫秒
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针对双轮履带式管道机器人在管道中运动不稳定、容易侧倾的问题,设计一种履带式管道机器人防侧倾机构。基于Solid Works软件,建立履带式管道机器人三维模型,进行防侧倾装置及传动系统设计。研究防侧倾装置不同管径适应性,并对管道机器人进行了受力分析。研究结果表明:该防侧倾机构结构简单、适应性能、损伤便捷、性能可靠,能够实现双轮履带式管道机器人的平稳作业,具有良好的工程应用价值。 相似文献
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尚满喜 《机械工程与自动化》2013,(4):92-94
针对地震后搜救遇到的问题,设计了一款可变位履带式地震废墟搜救机器人。首先分析和验证了可变位履带式机器人的结构特点和可行性,然后对机器人的控制系统硬件组成进行了架构,在此基础上通过Pro/E软件对机器人进行了三维实体建模和整机运动仿真。仿真结果表明了可变位履带式地震废墟搜救机器人运动方式多样,满足功能要求,具有一定的应用价值。 相似文献
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为提高小型履带式机器人的射击精度与控制稳定性,通过有限元分析的方法研究了武器发射后坐力下小型履带式机器人位姿(位置与姿态)变化的情况;基于自动武器动力学、车辆地面力学,在有限元分析软件Abaqus中建立了某武装小型履带式机器人多体系统有限元模型;分析了缓冲器阻尼系数在0.5~4.0Ns/mm、弹簧刚度在1~8N/mm范围内对机器人最终位移量的影响,并得出了最优的缓冲器方案;分析了负载在0~5kg、仰角在0~30°的范围内对机器人最终位姿的影响,并拟合出负载与仰角关于机器人最终位姿参数的回归方程。结果表明,缓冲器的参数变化、机器人的负载与发射仰角变化均对机器人在后坐力作用下的位姿变化产生显著影响,其中机器人负载和发射仰角与最终位姿参数具有强相关性。 相似文献
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YE Changlong MA Shugen LI Bin 《机械工程学报(英文版)》2008,21(2):31-35
A portable shape-shifting mobile robot system named as Amoeba Ⅱ(A-Ⅱ) is developed for the urban search and rescue application. It is designed with three degrees of freedom and two tracked drive systems. This robot consists of two modular mobile units and a joint unit. The mobile unit is a tracked mechanism to enforce the propulsion of robot. And the joint unit can transform the robot shape to get high environment adaptation. A-Ⅱ robot can not only adapt to the environment but also change its body shape according to the locus space. It behaves two work states including the linear state (named as I state) and the parallel state (named as Ⅱ state). With the linear state the robot can climb upstairs and go through narrow space such as the pipe, cave, etc. The parallel state enables the robot with high mobility on rough ground. Also, the joint unit can propel the robot to roll in sidewise direction. Two modular A-Ⅱ robots can be connected through jointing common interfaces on the joint unit to compose a stronger shape-shifting robot, which can transform the body into four wheels-driven vehicle. The experimental results validate the adaptation and mobility of A-Ⅱ robot. 相似文献
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In this paper, the problem of object caging and transporting is considered for multiple mobile robots. With the consideration of minimizing the number of robots and decreasing the rotation of the object, the proper points are calculated and assigned to the multiple mobile robots to allow them to form a symmetric caging formation. The caging formation guarantees that all of the Euclidean distances between any two adjacent robots are smaller than the minimal width of the polygonal object so that the object cannot escape. In order to avoid collision among robots, the parameter of the robots radius is utilized to design the caging formation, and the A⁎ algorithm is used so that mobile robots can move to the proper points. In order to avoid obstacles, the robots and the object are regarded as a rigid body to apply artificial potential field method. The fuzzy sliding mode control method is applied for tracking control of the nonholonomic mobile robots. Finally, the simulation and experimental results show that multiple mobile robots are able to cage and transport the polygonal object to the goal position, avoiding obstacles. 相似文献
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针对Mecanum轮式全方位移动平台存在路面适应性差等问题,提出了“全方位移动履带”的结构,并研制出一种履带式全方位移动平台;研究了履带式全方位移动平台的运动平顺性,分别建立了履带式和Mecanum轮式全方位移动平台的虚拟样机,主要完成了两种样机在B~F级不平路面的纵向及横向运动仿真试验;分析了两种样机纵向及横向运动的平顺性,结果表明,履带式全方位移动平台的运动平顺性优于Mecanum轮式全方位移动平台,并总结了路面等级对其纵向及横向运动平顺性的影响规律;在一段土路(相当于C级路面)上完成了平台的平顺性试验,试验结果验证了仿真结果的正确性;因此,履带式全方位移动平台可以改善Mecanum轮式全方位移动平台的路面适应性。 相似文献
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Human tracking is an important issue for intelligent robotic control and can be used in many scenarios, such as robotic services and human-robot cooperation. Most of current human-tracking methods are targeted for mobile/tracked robots, but few of them can be used for legged robots. Two novel human-tracking strategies, view priority strategy and distance priority strategy, are proposed specially for legged robots, which enable them to track humans in various complex terrains. View priority strategy focuses on keeping humans in its view angle arrange with priority, while its counterpart, distance priority strategy, focuses on keeping human at a reasonable distance with priority. To evaluate these strategies, two indexes(average and minimum tracking capability) are defined. With the help of these indexes, the view priority strategy shows advantages compared with distance priority strategy. The optimization is done in terms of these indexes, which let the robot has maximum tracking capability. The simulation results show that the robot can track humans with different curves like square, circular, sine and screw paths. Two novel control strategies are proposed which specially concerning legged robot characteristics to solve human tracking problems more efficiently in rescue circumstances. 相似文献