Results 11 to 20 of about 195,542 (316)
Experimental study of coupled shaft bending - blade umbrella mode vibration of a turbine rotor model
Nihon Kikai Gakkai ronbunshu, 2014 This paper describes an experimental study on the characteristics of blade-shaft coupled bending vibration of a rotor system with a bladed disk. In a rotor with relatively long blades such as low-pressure steam turbines, the coupled vibration of shaft ...
Takeshi KUDO +5 more
doaj +1 more source
Dynamic behavior of a rotating delaminated composite beam including rotary inertia and shear deformation effects [PDF]
, 2015 A finite element (FE) model is developed to study the free vibration of a rotating laminated composite beam with a single delamination. The rotary inertia and shear deformation effects, as well as the bending–extension, bending–twist and extension–twist ...
Della, Christian +1 more
core +2 more sources
Shipin gongye ke-ji, 2022 In order to evaluate the anti-inflammatory effect of crude polysaccharide from Tibetan Opuntia ficus-indica stems, the impacts of crude polysaccharide contents on the foot swelling in mice caused by carrageenin, and on the contents of inflammatory ...
Xiufeng CHENG +4 more
doaj +1 more source
A Quadruped Micro-Robot Based on Piezoelectric Driving
Sensors, 2018 Inspired by a way of rowing, a new piezoelectric driving quadruped micro-robot operating in bending-bending hybrid vibration modes was proposed and tested in this work.
Qi Su +3 more
doaj +1 more source
Active vibration control of structures undergoing bending vibrations [PDF]
The Journal of the Acoustical Society of America, 1996 An active vibration control subassembly for a structure (such as a jet engine duct or a washing machine panel) undergoing bending vibrations caused by a source (such as the clothes agitator of the washing machine) independent of the subassembly. A piezoceramic actuator plate is vibratable by an applied electric AC signal.
Frederic G. Pla, Harindra Rajiyah
openaire +1 more source
Infrared spectroscopy of solid CO-CO2 mixtures and layers [PDF]
, 2005 The spectra of pure, mixed and layered CO and CO2 ices have been studied systematically under laboratory conditions using infrared spectroscopy. This work provides improved resolution spectra (0.5 cm-1) of the CO2 bending and asymmetric stretching mode ...
Boogert +28 more
core +3 more sources
Bend‐bend‐twist vibrations of a wind turbine blade
Wind Energy, 2017 AbstractDynamics of a wind turbine blade under bend‐bend‐twist coupled vibrations is investigated. The potential and kinetic energy expressions for a straight nonuniform blade are written in terms of beam parameters. Then, the energies are expressed in terms of modal coordinates by using the assumed mode method, and the equations of motion are found by
Gizem D. Acar, Brian F. Feeny
openaire +2 more sources
Piezoelectric Composite Vibrator with a Bilaminated Structure for Bending Vibration [PDF]
Applied Sciences, 2019 A piezoelectric composite vibrator with a bilaminated structure is designed and fabricated, in this work by applying bending vibration to increase vibration displacement and reduce resonance frequency. The finite element software ANSYS (ANSYS, Inc.
Xia Liu +5 more
openaire +2 more sources
Development of a Novel Ultrasonic Drill Using Longitudinal-Bending Hybrid Mode
IEEE Access, 2017 Machining of hard and brittle materials is usually troublesome due to their high stiffness. In order to improve the processing speed of hard and brittle materials, ultrasonic assisted processing was developed.
Xintian Tang +4 more
doaj +1 more source
Fabrication and mechanical testing of a new sandwich structure with carbon fiber network core [PDF]
, 2010 The aim is the fabrication and mechanical testing of sandwich structures including a new core material known as fiber network sandwich materials.
Amir Shahdin +18 more
core +2 more sources