Results 1 to 10 of about 245,653 (257)
Analysis and Suppression of Self-Excited Oscillations in Pressure Servo Valve System
Applied Sciences, 2022 In this paper, the phenomenon of pressure servo valve system self-excited oscillation is studied, the dynamic model of the system is established, and the validity of the model is verified by experimental analysis.
Jian Huang +4 more
doaj +1 more source
Energies, 2022 High altitude and low temperature is the common extreme environment for internal combustion engines. Under such operating conditions, heavy-duty diesel engines often suffer from serious abnormal combustion, such as knocking combustion, which results in ...
Zhijie Li +5 more
doaj +1 more source
Radiation-pressure-driven micro-mechanical oscillator [PDF]
OFC/NFOEC Technical Digest. Optical Fiber Communication Conference, 2005., 2005 As Q factor is boosted in microscale optical resonant systems there will be a natural tendency for these systems to experience a radiation-pressure induced instability. The instability is manifested as a regenerative oscillation (at radio frequencies) of the mechanical modes of the microcavity.
H, Rokhsari +3 more
openaire +2 more sources
Entangling Macroscopic Oscillators Exploiting Radiation Pressure [PDF]
Physical Review Letters, 2002 It is shown that radiation pressure can be profitably used to entangle {\it macroscopic} oscillators like movable mirrors, using present technology. We prove a new sufficient criterion for entanglement and show that the achievable entanglement is robust against thermal noise. Its signature can be revealed using common optomechanical readout apparatus.
MANCINI, Stefano +3 more
openaire +4 more sources
Experimental Study on Condensation of Steam Jet Injection in Submerged Condition
Shanghai Jiaotong Daxue xuebao, 2022 An experimental study is conducted to find the characteristics of steam plume and pressure oscillation on direct contact condensation by a side-hole sparger.
ZHANG Wei, JIANG Chaofei, YE Ya’nan, WANG Xiaoyan, GONG Zili, HU Chen, XIAO Yao, GU Hanyang
doaj +1 more source
Evaluation of Pressure Resonance Phenomena in DCT Actuation Circuits
Energies, 2021 The paper investigates hydraulic wave propagation phenomena through hydraulic circuits of power transmission systems by means of numerical approaches.
Stefano Terzi +2 more
doaj +1 more source
High frequency pressure oscillator for microcryocoolers [PDF]
Review of Scientific Instruments, 2008 Microminiature pulse tube cryocoolers should operate at a frequency of an order higher than the conventional macro ones because the pulse tube cryocooler operating frequency scales inversely with the square of the pulse tube diameter. In this paper, the design and experiments of a high frequency pressure oscillator is presented with the aim to power a ...
Vanapalli, Srinivas +6 more
openaire +3 more sources
Open Physics, 2021 Knocking becomes an increasingly important issue in direct injection natural gas engines with the application of new combustion modes. In this article, the knocking characteristics of natural gas engine operating in stratified combustion mode were ...
Zhang Qiang +3 more
doaj +1 more source
Applied Sciences, 2021 The cavitation phenomenon of the self-resonating waterjet for the modulation of erosion characteristics is investigated in this paper. A three-dimensional computational fluid dynamics (CFD) model was developed to analyze the unsteady characteristics of ...
Lihua Cui, Fei Ma, Tengfei Cai
doaj +1 more source
Aerospace, 2023 Supersonic combustion instability studies are crucial for the future maturation of scramjet engines. In the present paper, the supersonic combustion instability in a strut-based scramjet combustor is investigated through large eddy simulation and dynamic
Yuwei Cheng +3 more
doaj +1 more source