Results 81 to 90 of about 77,548 (281)
Research on Design Features and Vibration Characteristics of Self-excited Hydraulic Oscillator
Shiyou jixie, 2020 The structural parameters of the self-excited hydraulic oscillator such as shoulder distance, split distance, loop width and side wall angle are the direct factors that affect its vibration characteristics.
王传鸿, 邹刚, 周歆, 杨小城
doaj
Some field experience with subsynchronous vibration of centrifugal compressors [PDF]
A lot of large chemical fertilizer plants producing 1000 ton NH3/day and 1700 ton urea/day were constructed in the 1970's in China. During operation, subsynchronous vibration takes place occasionally in some of the large turbine-compressor sets and has ...
Du, Yun-Tian +5 more
core +1 more source
Advanced Functional Materials, EarlyView.Na‐ion batteries ‐ Impact of doping on the oxygen redox: The sloping potential of NaMg0.1Ni0.4Mn0.5O2 above 4.0 V is caused by a new redox center (arising from the ‘O bound to Mg’), having a higher potential but being more irreversible compared to the ‘O bound to Ni’.
Yongchun Li +12 more
wiley +1 more source
Subsynchronous vibrations in a high pressure centrifugal compressor: A case history [PDF]
Two distinct aerodynamically excited vibrations in a high pressure low flow centrifugal compressor are documented. A measured vibration near 21% of running speed was identified as a nonresonant forced vibration which results from rotating stall in the ...
Evans, B. F., Smalley, A. J.
core +1 more source
New model for vortex-induced vibration of catenary riser [PDF]
, 2008 This paper presents a new theoretical model capable of predicting the vortex-induced vibration response of a steel catenary riser subject to a steady uniform current.
O'Brien, P. +2 more
core
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
LubricantsPolygonal wear affects driving safety and drastically shortens a wheel’s life. This work establishes a wheel–rail coupled system’s rotor dynamics model and a wheel polygonal wear model, taking into account the wheelset’s flexibility, the effect of the ...
Yahong Dong, Shuqian Cao
doaj +1 more source
Nihon Kikai Gakkai ronbunshu, 2018 This paper presents experiments and an analysis of the self-excited vibration of a plate supported by air pressure. In the analysis, the unsteady fluid force acting on the plate is calculated based on the basic equation of a two-dimensional gap flow ...
Masakazu TAKEDA, Masahiro WATANABE
doaj +1 more source
Friction-Induced Vibration of a Railway Wheelset-Track System and Its Effect on Rail Corrugation
Lubricants, 2020 In the present study, the effect of the radius of railway curved tracks on the slip of a wheel on a rail is studied. A 3D finite-element model of a wheelset-track system is established when the creep force between the wheel and rail is saturated.
Guangxiong Chen
doaj +1 more source
Identifying Self-excited Vibrations with Evolutionary Computing
Procedia Computer Science, 2014 AbstractThis study uses differential evolution to identify the coeffic ients of second-order differentia l equations of self-e xc ited vibrations fro m a time signal. The motivation is found in the ample occurrence of this vibration type in engineering and physics, in particu lar in the real -life proble m of v ibrations of hydraulic structure gates ...
Erdbrink, C.D., Krzhizhanovskaya, V.V.
openaire +3 more sources