Andrej Jeromen (Avtor), Edvard Govekar (Avtor)

Povzetek

The subject of this study is the vertical mass-spring-like oscillation of a pendant droplet and its resonant detachment, which was experimentally observed in the process of laser droplet generation from a metal wire. The process was characterized by various time series, which were generated from a sequence of infrared intensity images of the process. Following a visual inspection of pendant droplet images and an analysis of a wavelet based time-frequency map of the dropletʼs vertical displacement time series, the pendant dropletʼs oscillation is described by a time-variable mass-spring system. Based on the characteristics of the time-frequency map, the resonant nature of the pendant droplet detachment was demonstrated. Additionally, an algebraic expression was formulated, which can be used to predict the detached dropletʼs diameter as a function of the laser pulse frequency.

Ključne besede

time series;time-frequency analysis;pendant droplet;mass-spring systems;droplet detachment;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 532.5:519.6(045)
COBISS: 14623515 Povezava se bo odprla v novem oknu
ISSN: 0888-3270
Št. ogledov: 1531
Št. prenosov: 814
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: analize časovnih serij;časovne serije;ločevanje kapljic;
Vrsta dela (COBISS): Članek v reviji
Konec prepovedi (OpenAIRE): 2018-05-06
Strani: str. 503-516
Zvezek: ǂVol. ǂ80
Čas izdaje: Dec. 2016
DOI: 10.1016/j.ymssp.2016.04.038
ID: 10993003