Results 161 to 170 of about 3,275 (306)

Open-source Electronic Mass-Spring-Damper emulator with nonlinear dynamics for education and control research. [PDF]

HardwareX
Gonzalez-Solis EV, Rosas-Almeida DI.
europepmc   +1 more source

Elementary Steps of Energy Conversion in Strongly Correlated Systems: Beyond Single Quasiparticles and Rigid Bands

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This article reviews the fundamental consequences of strong correlations on excitations and elementary steps of energy conversion leading to new opportunities to control energy conversion. Examples include friction at surfaces, thermal transport, and photovoltaic energy conversion.
Vasily Moshnyaga, Peter E. Blöchl, Vitaly Bruchmann‐Bamberg, Annika Dehning, Lukas Allen‐Rump, Christopher Hausmann, Matthias Krüger, Amrith Rathnakaran, Sangeeta Rajpurohit, Daniel Steil, Christoph Flathmann, Jörg Hoffmann, Michael Seibt, Cynthia Volkert, Christian Jooss   +14 more
wiley   +1 more source

Viscosity Characterization of PDMS and Its Influence on the Performance of a Torsional Vibration Viscous Damper Under Forced Hydrodynamic Loading. [PDF]

Materials (Basel)
Chmielowiec A, Michajłyszyn A, Gumieniak J, Woś S, Homik W, Antosz K.   +5 more
europepmc   +1 more source

Triboelectric–Electromagnetic Generator‐Enabled Hybrid Power Backpack for Self‐Powered Field Safety Management

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A lightweight hybrid backpack integrating SC‐TENGs and R‐EMGs harvests biomechanical energy during walking. With a low activation speed of 3 km h−1 and a high specific power of 0.18 W kg−1, it enables self‐powered field safety management. The power backpack refers to an energy‐harvesting solution engineered to mitigate battery reliance in wearable ...
Jie Chen, Qiao Bi, Chao Zuo, Qian Qin, Zhihao Hu, Hengyu Guo, Qian Tang   +6 more
wiley   +1 more source

Synchronous Rotation Dynamics in a Molecular Motor. [PDF]

J Am Chem Soc
Kluifhooft R, Wilhelmsen J, Kapitzke M, Rückert AK, Kovalenko SA, Ioffe IN, Stähler J, Kathan M, Palato S.   +8 more
europepmc   +1 more source

Shaking Table Tests and Numerical Analysis of Rocking Vault‐Shaped Segmental Piers Equipped With an Annular Double Sliding System

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT To enhance the structural robustness of bridges, a rocking arch‐shaped segmental pier with a double sliding system was previously proposed as a low‐cost solution to protect bridges in developing countries. The rocking behavior is triggered by halting the sliding motion, which increases the horizontal load‐bearing capacity and limits ...
Shengming Feng, Mitsuyoshi Akiyama, Shintaro Kobayashi, Ryosuke Kato, Elisa Vitolo, Hirokazu Takahashi, Shun Arima   +6 more
wiley   +1 more source

Sensitivity analysis and integrated optimization of placement and parameters of rotational friction dampers based on seismic energy approach considering soil-structure interaction. [PDF]

PLoS One
Jarrahi H, Vaziri SJ, Khatibinia M.
europepmc   +1 more source

Self-tuned friction damper tuned with silicon fluid/viscous fluid

Self-tuned friction damper for mitigation of high frequency torsional oscillations (HFTO) in a bottom hole assembly (BHA) for drilling boreholes in the earth crust has been described already. It is especially covering the higher frequency content of HFTO,

core  

Concept, Tests, and Optimum Design of Novel Negative Stiffness Friction Dampers for Seismic Protection of Long‐Span Bridges

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma, Shaodong Jiang, Kun Xu, Qiang Han, Xiuli Du, Kaiming Bi   +5 more
wiley   +1 more source

Fast sensorless collision detection for resource-constrained pmsm controllers using an FFRLS-based method. [PDF]

Sci Rep
Zhao D, Ren T, Huang G, Liu M.
europepmc   +1 more source