Results 91 to 100 of about 87,666 (303)

Study of the Resonant Frequency of Unimorph Triangular V-shaped Piezoelectric Cantilever Energy Harvester [PDF]

International Journal of Advanced Design and Manufacturing Technology, 2015
: The main aim of the vibration energy harvesters is to locally power autonomous devices such as wireless sensors. Generally, power levels are low and the environmental benefit of the technology is to replace batteries rather than saving energy per se ...
Rouhollah Hosseini, Mohsen Hamedi
doaj  

Fluctuating Nonlinear Spring Model of Mechanical Deformation of Biological Particles [PDF]

, 2015
We present a new theory for modeling forced indentation spectral lineshapes of biological particles, which considers non-linear Hertzian deformation due to an indenter-particle physical contact and bending deformations of curved beams modeling the ...
Gijs J L Wuite, Joost Snijder, Kenneth A Marx, Olga Kononova, Valeri Barsegov, Wouter H Roos, Yaroslav Kholodov   +6 more
core   +4 more sources

Active Vibration Control of a Cantilever Beam

, 2013
Aktif titreşim kontrolü teknolojisi, pasif kontrol tekniklerinin bir sınıra ulaşması ve bilhassa düşük frekanslarda yetersiz kalması ile konu üzerinde son yıllarda hem akademik hem de endüstriyel pek çok çalışma gerçekleştirilmesine sebep olmuştur. Teknolojinin de hızlı gelişmesi ile sadece göreceli olarak düşük doğal frekanslara sahip basit yapılar ...
openaire   +2 more sources

Direct Laser Writing of Magnetic Micro Actuators With a Stimulus‐Responsive Compliant Hinge

Advanced Materials Technologies, EarlyView.
This study presents a versatile modular design strategy for adaptive 3D microactuators. Using two‐photon‐induced C,H insertion reactions within solid polymer layers, chemically distinct hinge and stimulus responsive materials are patterned in one step. The hinge's properties enable tunable motion, mechanical control, and reconfigurable actuation across
Eleonora Galli, Nicolas Geid, Yizheng Liu, Friederike Strahl, Jürgen Rühe   +4 more
wiley   +1 more source

Dynamic Actuation of Single-Crystal Diamond Nanobeams

, 2015
We show the dielectrophoretic actuation of single-crystal diamond nanomechanical devices. Gradient radio-frequency electromagnetic forces are used to achieve actuation of both cantilever and doubly clamped beam structures, with operation frequencies ...
Burek, Michael J., Kara, Vural, Kearns, Ryan, Lončar, Marko, Sohn, Young-Ik   +4 more
core   +1 more source

Linking Device Performance to Nanoscale Photoactivation of Grain Boundaries in 2D Hybrid Halide Perovskites

Advanced Materials Technologies, EarlyView.
The opto‐electronic response of polycrystalline (PEA)2PbBr4 thin films is investigated by correlating macroscopic photodetector performance with nanoscale mapping techniques. Grain boundary density is systematically tuned through crystallization control and linked to device responsivity.
Camilla Bordoni, Lorenzo Calcaterra, Andrea Ciavatti, Silvia Milita, Valentina Bonino, Lorenzo Margotti, Sara Cepić, Marisa Di Sabatino, Federico Boscherini, Daniela Cavalcoli, Beatrice Fraboni   +10 more
wiley   +1 more source

Model and design of a double frequency piezoelectric resonator [PDF]

, 2013
A novel design of a multifrequency mechanical resonator with piezoelectric materials for energy harvesting is presented. The electromechanical response is described by a finite element model, which predicts the output voltage and the generated ...
Amati, Nicola, Bonin, Roberto, Rapisarda, A., Tonoli, Andrea, Zenerino, Enrico Cesare   +4 more
core  

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Dynamic Behavior in Piezoresponse Force Microscopy

, 2005
Frequency dependent dynamic behavior in Piezoresponse Force Microscopy (PFM) implemented on a beam-deflection atomic force microscope (AFM) is analyzed using a combination of modeling and experimental measurements.
Abplanalp M, Alexe M, Arthur P Baddorf, Bdikin I K, Burnham N A, Eng L M, Frederix P, Ganpule C, Hirsekorn S, Hong S, Jesse S, Kalinin S V, Kalinin S V, Kalinin S V, Karapetian E, Persson B N J, Rabe U, Rabe U, Sarid D, Sergei V Kalinin, Stephen Jesse, Tiedke S, Timoshenko S, Turner J A   +23 more
core   +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