Dinamska analiza nihalnega sistema

Peternelj, Aljaž (author), Slavič, Janko (mentor), Boltežar, Miha (comentor)

Nihalni sistem je naprava, ki se uporablja v proizvodnem procesu kamene volne. Zaradi dinamičnih obremenitev prihaja do mehanskih poškodb na nihalu in posledično do okvare nihalnega sistema. S pomočjo Lagrangevih enačb je bil določen dinamski model, na podlagi katerega so bile izračunane vzbujevalne sile, ki delujejo na nihalo. Sledila je strukturna analiza, kjer so bile identificirane lastne frekvence in oblike nihala ter določene frekvenčne prenosne funkcije napetosti za najbolj kritična mesta. Ugotovljeno je bilo, da je sistem vzbujan blizu lastne dinamike, kar predstavlja glavni razlog za odpoved nihalnega sistema.

• Language: Slovenian
• Keywords: nihalni sistem, dinamska analiza, strukturna analiza, modalna analiza, harmonska analiza, dinamske obremenitve
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FS - Faculty of Mechanical Engineering
• Place of publishing: Ljubljana
• Publisher: [A. Peternelj]
• Year: 2018
• Number of pages: XX, 73 str.
• PID: 20.500.12556/RUL-101675
• UDC: 534:620.178.32(043.2)
• COBISS.SI-ID: 16135707
• Publication date in RUL: 24.06.2018

Secondary language

• Language: English
• Title: Dynamics of the pendulum system

Abstract

A pendulum system is a device that is used in the production process of the stone wool. Mechanical damage occurs to the device due to dynamic loads leading to an eventual failure of the pendulum system. With the use of Lagrange’s equations a dynamic model was determined upon which excitation forces on the pendulum were obtained. Structural dynamics analysis was performed to identify natural frequencies, mode shapes of the pendulum and frekvenc response functions of strain for the most critical areas of the system. The conclusion is that the pendulum system operates close to its first natural frequency. The latter is the main reason for the failure of the pendulum system.

• Keywords: pendulum system, dynamic analysis, structural analysis, modal analysis, harmonic analysis, dynamic loads