Results 71 to 80 of about 4,153 (287)
Advances in Mechanical Engineering, 2018 In present, the drilling industry have to face the reality of low oil and gas prices, fully mechanical vertical drilling tool is likely to become the best choice for vertical drilling in the future.
Lixin Li +4 more
doaj +1 more source
Advanced Science, EarlyView.This work proposes and constructs the Hefei‐NAMD‐S framework based on machine learning stacked models to investigate the relationship between local polarization and non‐radiative recombination. The results indicate that, compared with A‐site local polarization, B‐site local polarization shows a more evident association with the non‐radiative ...
Bing Yang +13 more
wiley +1 more source
Flutter behaviour of composite aircraft wings [PDF]
, 1999 This research work presents series of investigations into the structural dynamics and dynamic aeroelastic (flutter) behaviour of composite and metal wings.
Ashawesh, Gamal Mohamed
core
Programmable Elastic Wave Control Via Mechanical‐Acoustic Interaction in Bistable Metamaterials
Advanced Science, EarlyView.A mechanically programmable metamaterial based on mechanical‐acoustic interaction enables reconfigurable elastic wave control through bistable state switching. Spatial encoding of peak and valley states tunes band structures and transmission, achieving low‐frequency vibration suppression, waveguiding, and energy localization.
Yuanyuan Li +7 more
wiley +1 more source
Advanced Science, EarlyView.Through a mixed‐ligand strategy that precisely regulates pore size and framework polarity, the Xe adsorption behavior is transformed from flexible to near‐rigid. ZIF‐7‐Cl(20) achieves sensitive recognition, efficient capture, and high selectivity for Xe, enabling high‐efficiency separation from Xe/Kr mixtures.
Tao Zhao +10 more
wiley +1 more source
A note on a torsional vibration generator
, 1981 This paper describes the design method of a torsional vibration generator which can reproduce the torsional vibration of an arbitrary wave form. In order to perform the torsional vibration tests for the internal combustion engine, a torsional vibration ...
コガ, カツユキ +7 more
core
Dynamic Characteristics Analysis of the Coupled Lateral-Torsional Vibration with Spur Gear System [PDF]
, 2020 A sixteen-degree-of-freedom (16-DOF) lumped parameter dynamic model taking into account the gravity, eccentricity, bearing clearance, transmission error, and coupled lateral-torsional vibration is established. Based on the dynamical equation, the dynamic
Shihua Zhou +3 more
core
A Study for the Characteristics of Torsional Vibration Damping in Diesel Engines
JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN, 1984 Shoichi Iwamoto +2 more
+6 more sources
International Journal of Rotating Machinery, 2008 A mathematical model of a cracked rotor and an asymmetric rotor with two disks representing a turbine and a generator is utilized to study the vibrations due to imbalance and side load.
Xi Wu, Jim Meagher
doaj +1 more source
Advanced Science, EarlyView.A versatile framework integrates addressable electrothermal actuation and strain‐constraint mechanisms to construct programmable shape‐morphing soft matter systems. By combining an analytical inverse design strategy for high‐fidelity 3D surface reconstruction with deep learning‐based closed‐loop control, this approach enables zero‐energy shape locking,
Kai Liu +5 more
wiley +1 more source