藤蔓机器人
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让藤蔓机器人乖乖“听话”!MIT林肯实验室×圣母大学破解操纵难题!
机器人大讲堂· 2025-10-29 10:03
Core Insights - The article discusses the development and optimization of "vine robots," inspired by the growth and flexibility of vine plants, which can navigate through challenging environments and perform tasks in areas inaccessible to traditional robots [1][3]. Group 1: Key Features and Applications - Vine robots can explore life signs in rubble, search for leaks in narrow pipes, and access unknown environments, successfully completing tasks in urban rescue training sites, archaeological sites, and salamander cave habitats [3]. - The flexibility of vine robots allows them to operate in complex environments, but their performance is limited by factors such as top load, design parameters, and environmental adaptability [5][6]. Group 2: Manipulability Challenges - The manipulability of vine robots is influenced by three main factors: the impact of top load, the ambiguity of design and control parameters, and poor environmental adaptability [6]. - A research team from the University of Notre Dame and MIT Lincoln Laboratory focused on optimizing the manipulability of vine robots by analyzing the effects of top load, chamber pressure, length, diameter, and actuator design through systematic experiments [8]. Group 3: Experimental Findings - Experiments revealed that increasing top load significantly reduces the robot's bending ability, especially beyond 100 grams, which limits its operational range [13]. - Chamber pressure experiments showed that the feature length initially increases with pressure, peaking at 5.52 kPa, before decreasing due to excessive rigidity [14]. - Length experiments indicated that longer bodies enhance horizontal movement but reduce vertical movement, necessitating a balance between flexibility and structural stability [16]. - Diameter experiments demonstrated that while diameter affects collapse resistance, it has limited impact on manipulability once structural integrity is ensured [17]. Group 4: Design and Control Guidelines - The research team established design and control guidelines to optimize vine robot performance, emphasizing the need to minimize top load and balance length for flexibility and stability [28]. - Recommendations include using lightweight sensors and modular designs to enhance maneuverability and selecting actuator designs based on required pressure ratios for specific tasks [28][29]. Group 5: Future Directions - Future research will address issues related to non-reset phenomena and explore low-latency materials and proprioceptive sensing technologies to improve precision [33]. - The development of higher pressure-resistant actuator designs aims to synchronize rapid growth and high curvature turning, expanding the application range of vine robots in urban rescue, archaeological exploration, and industrial inspection [33].
快讯|宇树机器人H2亮相;明新旭腾拟与上海清宝共同投资设立具身智能公司;软体机器人柔性化材料革新等
机器人大讲堂· 2025-10-21 09:39
1、 宇树机器人发布H2,首次有了仿生人脸 10月20日,宇树科技于官方发布了H系列通用人形机器人升级款,Unitree H2。与H1产品相比,H2在外观 上增加了仿生人脸。同时,公司官方披露了身高,体重两项参数,H2体重增加至70公斤,比H1的47公斤 重了近50%,身高相同为180cm。H2与H1的主要区别,或在于其采用了类似G1系列机器人的高自由度关 节化腰部模组,同时H2在外观上增加了仿生人脸,这一改进使其整体形象朝着高度拟人化的方向又迈进了 一步。尽管宇树官方尚未披露H2机器人的详尽技术配置,但同步发布的视频画面显示,无论是表演流畅的 舞蹈,还是展示复杂的武术动作,H2都表现出远超前代的稳定性与灵活性,其全身关节运动连贯、协调性 高,动作姿态显得十分自然。 2、 软体机器人柔性化材料革新 加州大学圣地亚哥分校的工程师们成功研制出一种薄层材料,将普通的软体机器人变成了敏捷的探险者。 这些藤蔓机器人可以伸展和扭曲,穿过那些对于大型机器来说过于狭小且难以操控的空间,就像蛇在草丛 中蜿蜒爬行一样。每个机器人皮肤中的执行器均由液晶弹性体制成,这种弹性体不仅强度极高,而且非常 灵活。这些弹性体条带被嵌入机器人身 ...