Results 91 to 100 of about 30,446 (313)
Advanced Optical Materials, EarlyView.Metasurface shows selective solar–thermal energy conversion with high‐activity solar/laser‐driven chemistry. The breakthrough is co‐designing broadband FP‐cavity + plasmonic LSPR/SLR resonances in an ultra‐thin metamaterial so that it not only harvests the most efficient proportion of solar radiation but also suppresses mid and IR emissivity. Moreover,
Samira Mehrabi +4 more
wiley +1 more source
PASSIVE DAMPING OF SPACECRAFT SANDWICH PANELS [PDF]
, 2007 For reusable and expendable launch vehicles as well as for other spacecraft structural vibration loads are safety critical design drivers impacting mass and lifetime. Here, the improvement of reliability and safety, the reduction of mass, the extension
Romberg, Oliver +6 more
core
Effect of the viscous damping on the seismic response of Low-rise RC frame building
Revista Facultad de Ingeniería Universidad de Antioquia, 2020 The equivalent viscous damping is a key parameter in the prediction of the maximum nonlinear response. Damping constitutes a major source of uncertainty in dynamic analysis. This paper studies the effect of using viscous damping, on the reduction of the
Fatima-Zohra Baba-Hamed, Luc Davenne
doaj +1 more source
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
Nonlinear Damping Characteristic of Nanocomposite Beams Via Dynamical Analysis [PDF]
, 2021 The nonlinear dynamical behavior of nanocomposite beams made of polybutylene terephthalate and branched carbon-nanotube (CNTs) are experimentally investigated. The frequency response curves of specimens with different CNTs weight fractions are obtained
Giovanni Formica +6 more
core
IET Control Theory & ApplicationsThis article introduces an advanced nonlinear controller designed for optimizing the performance of a single‐link robot arm featuring a flexible joint.
Amir Hossein Jafari +2 more
doaj +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Surface-wave damping in a brimful circular cylinder [PDF]
, 1998 The natural frequencies and damping rates of surface waves in a circular cylinder with pinned-end boundary conditions are calculated in terms of the gravitational Reynolds and Bond numbers, C[minus sign]1 and B, and the slenderness of the cylinder ...
Martel, Carlos, Nicolás, José A.
core +1 more source
Determining the nonlinear damping function using experiments
Омский научный вестникIn this article, the coefficients of the nonlinear damping function of a mechanical system with one translational degree of freedom are determined from an experimentally obtained oscillogram of free vibrations.
B. A. Kalashnikov +2 more
doaj +1 more source
Hard‐Magnetic Soft Millirobots in Underactuated Systems
Advanced Robotics Research, EarlyView.This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang +4 more
wiley +1 more source