Time series analysis based study of a mass-spring-like oscillation and detachment of a metal pendant droplet

Jeromen, Andrej (avtor), Govekar, Edvard (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: time series, time-frequency analysis, pendant droplet, mass-spring systems, droplet detachment
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Recenzirani rokopis
• Leto izida: 2016
• Št. strani: Str. 503-516
• Številčenje: Vol. 80
• PID: 20.500.12556/RUL-105756
• UDK: 532.5:519.6(045)
• ISSN pri članku: 0888-3270
• DOI: 10.1016/j.ymssp.2016.04.038
• COBISS.SI-ID: 14623515
• Datum objave v RUL: 12.12.2018

Gradivo je del revije

• Naslov: Mechanical systems and signal processing
• Skrajšan naslov: Mech. syst. signal process.
• Založnik: Elsevier
• ISSN: 0888-3270
• COBISS.SI-ID: 169243

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: analize časovnih serij, časovne serije, ločevanje kapljic

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0241
• Naslov: Sinergetika kompleksnih sistemov in procesov