Results 61 to 70 of about 167,593,697 (284)

Adaptive Suppression Method for Elastic Vibrations in the Control System of Guided Rocket

International Journal of Aerospace Engineering
This paper proposes a method for the autonomous identification of elastic frequency and adaptive suppression of elastic vibration based on a priori information, in response to the lower elastic frequency and large frequency uncertainty range of guided ...
Chen-ming Zheng, Cheng Zhang, Jun Wang, Zhang-yao Zheng   +3 more
doaj   +1 more source

In Situ Magnetic Ordering and Microfabrication of Liquid Crystal Networks with Discretized Alignment

Advanced Functional Materials, EarlyView.
Miniaturizing liquid crystal network actuators typically demands costly laser writing or digital light processing. A low‐cost photolithography platform couples rotating photomasks with a Halbach magnetic array to discretize in‐plane molecular alignment down to 50 µm, producing programmable, light‐responsive grippers, checkerboards, and origami‐inspired
Matthew Gene Scarfo, Ramón S. Herrera Restrepo, Irving Hafed Tejedor Garcia, Hamed Shahsavan   +3 more
wiley   +1 more source

Active elastic metamaterials with applications in vibration and acoustics

, 2012
Elastic metamaterials provide a new approach to solving existing problems in vibration and acoustics. They have also been associated with novel concepts such as acoustic invisibility and subwavelength imaging.
Laalej, Hatim, Pope, Simon A., Reynolds, Matthew, Daley, Stephen   +3 more
core   +1 more source

Study on Semi-active Control of Coupled Vibration of Carbody Underframe Suspended System

机车电传动, 2017
To reduce the vibration of car body and protect carbody underframe suspended equipment, the coupling vibration relationship between carbody and carbody underframe suspension equipment was studied to improve vehicle dynamic performance.
TIAN Xiangyang, ZENG Jing, WANG Qunsheng
doaj  

DYNAMICS OF VIBRATION FEEDERS WITH A NONLINEAR ELASTIC CHARACTERISTIC

Nauka ta progres transportu, 2017
Purpose. Subject to the smooth and efficient operation of each production line, is the use of vehicles transporting high specification. It worked well in practice for transporting construction machines, which are used during the vibration.
V. I. Dyrda, Y. N. Ovcharenko, S. V. Raksha, A. A. Chernii   +3 more
doaj   +1 more source

Suspension parameter design of underframe equipment considering series stiffness of shock absorber

Advances in Mechanical Engineering, 2020
In this article, a vertical rigid–flexible coupling model between the vehicle and the equipment is established. Considering the series stiffness of hydraulic shock absorbers, the underframe equipment is like a three-element-type Maxwell model dynamic ...
Jie Chen, Yangjun Wu, Xiaolong He, Limin Zhang, Shijie Dong   +4 more
doaj   +1 more source

Full‐Field Damage Monitoring in Architected Lattices Using In situ Electrical Impedance Tomography

Advanced Functional Materials, EarlyView.
In situ electrical impedance tomography (EIT) turns 3D‐printed, CNT‐infused architected lattices into full‐field damage‐imaging systems. Tunable Voronoi‐based geometries act as active sensing architectures, enabling conductivity maps to detect early‐stage damage and localise sequential ligament fracture before catastrophic failure.
Akash Deep, Andrea Samore, Alistair McEwan, Andrew McBride, Shanmugam Kumar   +4 more
wiley   +1 more source

Synergistic effects of elastic band and vibration training on muscle strength, balance, and mobility in older women with a history of falls: a randomised controlled trial

Frontiers in Bioengineering and Biotechnology
ObjectiveThis study aimed to investigate the effects of combined elastic band resistance training (EBRT) and whole-body vibration training (WBVT) on lower limb isokinetic muscle strength, balance and physical performance in older women with history of ...
Zhou Zhang, Weizhi Xiong, Heng Liu
doaj   +1 more source

Mechanics of Telson Ridges in Mantis Shrimp for Impact Analysis and Implications for Bioinspired Elastic Shell Designs

Advanced Functional Materials, EarlyView.
The mantis shrimp telson reveals how ridged biological shields control deformation under impact. Inspired by this architecture, telson‐inspired ridged curved shells transform ridge geometry and macroscopic curvature into bidirectional snap‐through, tunable stiffness, and enhanced hysteretic energy dissipation for multifunctional architected materials ...
Phani Saketh Dasika, Adwait Trikanad, Wei Huang, Taige Hao, David Kisailus, Pablo D. Zavattieri   +5 more
wiley   +1 more source

Size-Dependent Elastic Modulus and Vibration Frequency of Nanocrystals

, 2011
The elastic properties and the vibration characterization are important for the stability of materials and devices, especially for nanomaterials with potential and broad application.
Liang, LH (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China, Liang LH(梁立红), Wei YG(魏悦广), Ma HS(马寒松)   +3 more
core   +1 more source