Avtomatizacija preizkuševalnega stroja za dinamično obremenjevanje vzorcev

diplomsko delo univerzitetnega študijskega programa

Janez Matija (Author), Darko Hercog (Mentor), Nenad Gubeljak (Co-mentor)

Abstract

Potreba po avtomatizaciji mehanskih sistemov je vse bolj prisotna tudi pri testiranju materialov. Razlog je v nenehnem razvijanju novih materialov z boljšimi fizikalnimi lastnostmi, ki se uporabljajo za različne namene, od medicinskih implantatov do nosilnih komponent letal, vendar ne moremo zanesljivo predvideti njihovega dinamičnega obnašanja in dobe trajanja. S tem namenom je bil izdelan stroj z ekscentričnim vzvodom, s katerim se izvaja upogibno oz. ciklično obremenjevanje z nastavljivim odmikom, ki ga poganja trifazni asinhronski elektromotor s frekvenčnim pretvornikom. Celotni sistem je avtomatiziran, tako da je opremljen z merilno opremo proizvajalca National Instruments in programsko opremo LabVIEW. Zasnovan sistem omogoča široko izbiro vhodnih parametrov za obremenjevanje različnih geometrij preizkušancev ter zajemanje in shranjevanje podatkov, ki so ključnega pomena za nadaljnjo obdelavo.

Keywords

ekscentrično utrujanje;avtomatizacija;uporovni merilni lističi;preizkušanec;obremenjevanje;frekvenčni pretvorniki;uporabniški vmesniki;

Data

Language:	Slovenian
Year of publishing:	2015
Typology:	2.11 - Undergraduate Thesis
Organization:	UM FERI - Faculty of Electrical Engineering and Computer Science
Publisher:	[J. Matija]
UDC:	620.168:621.9.01(043.2)
COBISS:	19132694
Views:	962
Downloads:	148
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	AUTOMATION OF TESTING MACHINE FOR DYNAMIC LOADING OF SPECIMENS
Secondary abstract:	There is a growing need for automated mechanical systems in materials testing. The reason for that lies in the constant development of new materials with better physical properties, which are used for all kinds of different purposes, from medical implants to load-bearing components in airplanes, but we can not reliably predict their dynamic behaviour and fatigue. For this purpose, a machine with an eccentric lever has been developed, which is being used for flexural orcyclic loading with adjustable offset distanceand is being run by a three-phase asynchronous electric motor with a frequency converter. The entire system is automated by National Instruments data acquisition hardware and LabVIEW software. Developed system allows configuration of data acquisition and data logging parameters for different geometries of specimens.
Secondary keywords:	eccentric fatigue;automation;resistance strain gages;specimen;loading;frequency converters;user interfaces;
URN:	URN:SI:UM:
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. v Mariboru, Fak. za elektrotehniko, računalništvo in informatiko, Avtomatika
Pages:	IX, 47 f.
ID:	8739227