Results 121 to 130 of about 246,272 (261)

A pneumatic particle-blocking variable-stiffness bending actuator

AIP Advances
This study introduces a variable-stiffness pneumatic bending actuator to enhance the stiffness of flexible robots. The bending actuator combines the working principles of a pneumatic drive, a wedge structure, and particle blockage.
He Peng, Xia Wang, Dexu Geng
doaj   +1 more source

A multi-purpose method for analysis of spur gear tooth loading [PDF]

A large digitized approach was developed for the static and dynamic load analysis of spur gearing. An iterative procedure was used to calculate directly the "variable-variable" gear mesh stiffness as a function of transmitted load, gear tooth profile ...
August, R., Evans, J. W., Frater, J. L., Kasuba, R.   +3 more
core   +1 more source

Variation of transport coefficients for average fission dynamics with temperature and shape

, 1996
We study slow collective motion at finite thermal excitations on the basis of linear response theory applied to the locally harmonic approximation. The transport coefficients for average motion, friction \gamma, inertia M and the local stiffness C are ...
Hofmann, Helmut, Ivanyuk, Fedor A., Yamaji, Shuhei   +2 more
core   +2 more sources

Numerical Modeling of Tank Cars Carrying Hazardous Materials With and Without Composite Metal Foam

Advanced Engineering Materials, EarlyView.
Large‐scale puncture models consisting of hazardous materials (HAZMATs) tank car with protective steel–steel composite metal foam (S–S CMF) are solved numerically. Tank car plate with added 10.91–13.33 mm thick S–S CMF layer does not puncture. Protective S–S CMF absorbs impact energy, reduces plate deformation, and prevents shear bands formation ...
Aman Kaushik, Afsaneh Rabiei
wiley   +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

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Variable-Stiffness Underwater Robotic Systems: A Review

Journal of Marine Science and Engineering
Oceans, which cover more than 70% of Earth’s surface, are home to vast biological and mineral resources. Deep-sea exploration encounters significant challenges due to harsh environmental factors, including low temperatures, high pressure, and complex ...
Peiwen Lu, Busheng Dong, Xiang Gao, Fujian Zhang, Yunyun Song, Zhen Liu, Zhongqiang Zhang   +6 more
doaj   +1 more source

Zero-Temperature Phase Transitions of Antiferromagnetic Ising Model of General Spin on a Triangular Lattice

, 1997
We map the ground-state ensemble of antiferromagnetic Ising model of spin-S on a triangular lattice to an interface model whose entropic fluctuations are proposed to be described by an effective Gaussian free energy, which enables us to calculate the ...
A. Lipowski, A. Lipowski, B. Kleine, B. Nienhuis, C. L. Henley, C. Zeng, Chen Zeng, Christopher L. Henley, D.A. Huse, E. Domany, G. G. Batrouni, G. H. Wannier, G. M. Zhang, G. Murthy, H. G. Evertz, H. J. Hilhorst, H. W. J. Blöte, H. W. J. Blöte, J. Kondev, J. Kondev, J. Kondev, J. Stephenson, J. Stephenson, J. V. José, L. S. Levitov, O. Nagai, P. Chandra, P. Chandra, P. D. Coddington, Q. Sheng, S. Miyashita, S. Sachdev, T. Horiguchi, T. Horiguchi, T. Ogawa, W. Li, W. Zheng, Y. Honda, Y. Yamada   +38 more
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +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