Results 111 to 120 of about 835,787 (302)

Continuum Mechanics Modeling of Flexible Spring Joints in Surgical Robots

Advanced Robotics Research, EarlyView.
A new mechanical model of a tendon‐actuated helical extension spring joint in surgical robots is built using Cosserat rod theory. The model can implicitly handle the unknown contacts between adjacent coils and numerically predict spring shapes from straight to significantly bent under actuation forces.
Botian Sun, Liang Zhang, Jianwen Zeng, Xuefeng Wang   +3 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

Advanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi, Hemin Pan, Yang Zong, Yongfeng Mei, Jizhai Cui   +4 more
wiley   +1 more source

Numerical Modeling of Photothermal Self‐Excited Composite Oscillators

Advanced Robotics Research, EarlyView.
We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu, Ryan R. Rusch, Zheng Wu, Chi Chen, Pengju Shi, Hao Qiu, Ximin He   +6 more
wiley   +1 more source

Temperature measurement method of coal spontaneous combustion based on thermal deflection effect of bi-material cantilever beam

Meikuang Anquan
Spontaneous combustion of coal is one of the common and extremely hazardous concealed disasters in underground coal mines. Its early stage is accompanied by a slow temperature rise, and conventional electrical or point-type temperature monitoring methods
Juan WANG, Jun LI, Yuchen LIU, Mengyao KONG   +3 more
doaj   +1 more source

Experimental investigation of fatigue in a cantilever energy harvesting beam

, 2015
Over the last decade, cantilever energy harvesters gained immense popularity owing to the simplicity of the design and piezoelectric energy harvesting (PEH) using the cantilever design has undergone considerable evolution.
Liu, Peiwen, Panduranga Vittal Avvari, Avvari, Panduranga Vittal, Yang, Yaowen, Soh, Chee Kiong, Chee Kiong Soh, Yaowen Yang, Peiwen Liu   +7 more
core   +1 more source

FiN‐Kiri: Fabric‐Based Inflatable Kirigami Actuator for Multimodal Soft Robots

Advanced Robotics Research, EarlyView.
This study introduces a type of inflatable fabric‐based kirigami actuator capable of performing bending motion. The actuator is utilized as soft grippers, a crawling robot and a swimming robot. The crawling robot demonstrated extraordinary motion capabilities, such as moving forward, turning and navigating a narrow tunnel.
Yang Yu, Yupei Zhang, Yanqi Yin, Yehui Wu, Jinyao Zhang, Ruiyu Bai, Jiaqiang Yao, Kewei Su, Chenyi Yu, Zhicheng Tian, Naipeng Li, Zhuang Zhang, Bo Li   +12 more
wiley   +1 more source

Optimizing Power Density in Partially Coated Cantilever Beam Energy Harvesters: A Cost-Effective Design Strategy

Energies
Cantilever beams with piezoelectric coating are the most widely used form of strain-driven energy harvesting. Almost all prior research on cantilever beam shapes aimed at enhancing energy output accounts for beams fully coated with piezoelectric ...
Md. Mohiuddin, Kazi Mostafijur Rahman, Zahir Ahmed, Riaz Ahmed   +3 more
doaj   +1 more source

A GaAs-Based MOEMS Tunable RCE Photodetector with Single Cantilever Beam

, 2005
A GaAs-based micro-opto-electro-mech anical-systems(MOEMS) tunable resonant cavity enhanced(RCE)photodetector with a continuous tuning range of 31nm under a 6V tuning voltage is demonstrated. The single cantilever beam structure is adopted for this MOEMS
Huang Yongqing, Zhou Zhen, Wu Ronghan, Du Yun, Ren Xiaomin, Yang Xiaohong, Han Qin   +6 more
core  

Flexible Sensors for Robotics Tactile Perception: A Review

Advanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source

Active vibration control of a cantilever beam

, 2017
Tato práce se zabývá problémem aktivního tlumení vibrací vetknutého nosníku. Nejdříve jsou odvozeny příslušné matematické modely vetknutého nosníku popisující jeho kmitání. Dále se zabýváme možností identifikace těchto modelů a reálného nosníku.
Musil, Lukáš
core