Results 61 to 70 of about 532,393 (243)

Laboratory observations of slow earthquakes and the spectrum of tectonic fault slip modes [PDF]

, 2016
Slow earthquakes represent an important conundrum in earthquake physics. While regular earthquakes are catastrophic events with rupture velocities governed by elastic wave speed, the processes that underlie slow fault slip phenomena, including recent ...
Leeman, J. R, Marone, C., Saffer, D. M., Scuderi, MARCO MARIA   +3 more
core   +2 more sources

Preliminary Design and Control of an Ankle Rehabilitation Robot With Variable Stiffness Actuator

IEEE Access
Intrinsic robotic compliance is crucial for enhancing the safety of physical human-robot interaction. This study proposes a variable stiffness ankle rehabilitation robot for rehabilitation training.
Laibin Luo, Zhe Wei, Yao Sun, Wenxin Zhang, Jie Zhou   +4 more
doaj   +1 more source

Bursts in a fiber bundle model with continuous damage

, 2001
We study the constitutive behaviour, the damage process, and the properties of bursts in the continuous damage fiber bundle model introduced recently. Depending on its two parameters, the model provides various types of constitutive behaviours including ...
A. Delaplace, A. E. Naaman, A. G. Evans, A. G. Evans, A. Garcimartín, A. Guarino, A. Hansen, A. Petri, B. D. Coleman, B. K. Chakrabarti, C. Moukarzel, D. G. Harlow, D. G. Harlow, D. Krajcinovic, D. Sornette, D. Sornette, F. Hild, F. Kun, F. Kun, Ferenc Kun, H. E. Daniels, Hans. J. Herrmann, I. J. Beyerlein, I. L. Menezes-Sobrinho, L. Moral, M. Kloster, P. C. Hemmer, P. Duxbury, P. L. Leath, R. L. Smith, Raul Cruz Hidalgo, S. J. Zhou, S. L. Phoenix, S. L. Phoenix, S. M. Spearing, S. Roux, S. Zapperi, S. Zapperi, S. Zapperi, T. Kanada, W. A. Curtin, W. A. Curtin, W. A. Curtin, W. A. Curtin, W. A. Curtin, W. I. Newman, W. I. Newman, Y. Moreno   +47 more
core   +1 more source

Traction-drive force transmission for telerobotic joints [PDF]

A mechanism which meets the requirements of a teleoperated manipulator and those of an autonomous robot is discussed. The mechanism is a traction-drive differential that uses variable preload mechanisms.
Kuban, D. P., Williams, D. M.
core   +1 more source

Design Characteristics of Continuum Robots Based on TSA Variable Stiffness Method

Actuators
To address the contradiction between high flexibility and low stiffness in continuum robots, as well as the problems of complex structure, slow response, and narrow stiffness adjustment range in existing variable stiffness methods, this paper proposes a ...
Gang Chen, Yutong Wu, Zhixin Zhang, Jianxiao Zheng, Shiying Liu, Jiwei Yuan, Mingrui Luo, En Li   +7 more
doaj   +1 more source

Bioinspired Propulsion Mechanism in Fluid Using Fin with Dynamic Variable-Effective-Length Spring

Journal of Biomechanical Science and Engineering, 2006
Since the propulsion mechanism using elastic fins, such as the caudal fin and pectoral fin of fish, is effective in fluid, many studies on bioinspired elastic fins for propulsion in water and on the development of fish-type robots with elastic fins have ...
Shunichi KOBAYASHI, Masataka NAKABAYASHI, Hirohisa MORIKAWA   +2 more
doaj   +1 more source

Novel Design and Modeling of a Soft Pneumatic Actuator Based on Antagonism Mechanism

Actuators, 2020
The soft actuator possesses the characteristics of flexibility, environmental adaptability, and human–machine interaction. Firstly, aiming to resolve the limitation of variable stiffness performance of a traditional pneumatic artificial muscle (PAM ...
Yinglong Chen, Junhao Zhang, Yongjun Gong   +2 more
doaj   +1 more source

On the evolution of elastic properties during laboratory stick-slip experiments spanning the transition from slow slip to dynamic rupture [PDF]

, 2016
The physical mechanisms governing slow earthquakes remain unknown, as does the relationship between slow and regular earthquakes. To investigate the mechanism(s) of slow earthquakes and related quasi-dynamic modes of fault slip we performed laboratory ...
Collettini, Cristiano, Di Stefano, Giuseppe, Marone, Chris, Scognamiglio, Laura, Scuderi, MARCO MARIA, Tinti, Elisa   +5 more
core   +1 more source

Structural Design of a Multi-Stage Variable Stiffness Manipulator Based on Low-Melting-Point Alloys

Technologies
Soft manipulators have garnered significant research attention in recent years due to their flexibility and adaptability. However, the inherent flexibility of these manipulators imposes limitations on their load-bearing capacity and stability. To address
Moufa Ye, Lin Guo, An Wang, Wei Dong, Yongzhuo Gao, Hui Dong   +5 more
doaj   +1 more source

Development of procedures for calculating stiffness and damping properties of elastomers in engineering applications. Part 4: Testing of elastomers under a rotating load [PDF]

A test rig designed to measure stiffness and damping of elastomer cartridges under a rotating load excitation is described. The test rig employs rotating unbalance in a rotor which runs to 60,000 RPM as the excitation mechanism.
Darlow, M. S., Smalley, A. J.
core   +1 more source