Results 121 to 130 of about 376,515 (294)

Cars on Flooded Streets: Effect of Water Depth and Car Velocity on Drag Force

International Scholastic Journal of Science, 2018
A model car was pushed and then allowed to freely decelerate through water with depths ranging from 0.0 to 4.0 cm. Water depths that submerged only the wheels, not reaching the body of the car, were tested.
Chanon Hasuwannakit, Nico Angelo D. Millana, Seksan Yoadsanit   +2 more
doaj  

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

Multi-component Force Balance Control Systems Final Report [PDF]

Technique and apparatus for drag, lift, and pitch force measurements in hypersonic wind ...
Henderson, K. C., Mc Vey, E. S., Moore, J. W.   +2 more
core   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

Advanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

Design of Hydraulic Induced Bidirectional Coupling Coiled Tubing Drag Reducer

Shiyou jixie, 2020
The low rigidity of the coiled tubing makes it easy to buckle during running or drilling, which leads to increased drag and even locking. To address the problem, based on the Coanda effect and the Carmen vortex effect, a hydraulically induced ...
Dou Yihua, Wang Zhiyong, Cao Yinping, Zheng Jie   +3 more
doaj  

Drag force correlations and effect of charged particles on drag force for particle-laden flows

, 2022
Hesaplamalı Akışkanlar Dinamiği (HAD) aracı olan pafiX (patlama korumasında parçacık akışı simülasyonu), parçacık yüklü akışların elektrostatik yüklenmesi olayını modellemeye odaklanır. İki fazlı akışların HAD simülasyonlarında, parçacık dinamiklerini tahmin etmek için doğru sürükleme kuvveti modellemesi esastır. Mevcut sürükleme kuvveti korelasyonları
openaire   +1 more source

Strong‐Magnetic Flexible Composites for Magnetically Responsive Soft Robots

Advanced Robotics Research, EarlyView.
This perspective provides an overview of the performance mechanisms, preparation methods, and applications of strong magnetic flexible composite materials in soft actuators (such as gripping, movement, and sensing), and further explores current opportunities and challenges.
Wenwen Li, Shuai Liu, Xinyi Wang, Xinglong Gong, Shouhu Xuan   +4 more
wiley   +1 more source

A CFD study of hydrodynamic characteristics of a twin hybrid autonomous underwater vehicle

Results in Engineering
This study investigates the hydrodynamic characteristics and optimal profile of a novel unmanned underwater platform, the Twin Hybrid Autonomous Underwater Vehicle (THAUV). The THAUV comprises two torpedo-shaped buoyancy bodies and a fixed-wing.
Hoang-Phuong Vu, Thanh-Long Le, Nhat-Anh Ngo, Thi-Hong-Nhi Vuong, Thien-Hau Tran, Nguyen Thanh Truong, Trong-Hy Tran, Quang-Lam Tran   +7 more
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

Advanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang, Zixuan Zhang, Bingyan Li, Junkai Wang, Hongcheng Gu   +4 more
wiley   +1 more source