Numerička analiza konstrukcije poda helikoptera pri udaru o tlo

Klapač, Josip

prikaz prve stranice dokumenta Numerička analiza konstrukcije poda helikoptera pri udaru o tlo

Download
PDF 5.44 MB

master's thesis

Numerička analiza konstrukcije poda helikoptera pri udaru o tlo

Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. urn:nbn:hr:235:151242

Klapač, Josip

University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Cite this document

APA 6th Edition

Klapač, J. (2015). Numerička analiza konstrukcije poda helikoptera pri udaru o tlo (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:151242

MLA 8th Edition

Klapač, Josip. "Numerička analiza konstrukcije poda helikoptera pri udaru o tlo." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2015. https://urn.nsk.hr/urn:nbn:hr:235:151242

Chicago 17th Edition

Harvard

Klapač, J. (2015). 'Numerička analiza konstrukcije poda helikoptera pri udaru o tlo', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 09 January 2025, https://urn.nsk.hr/urn:nbn:hr:235:151242

Vancouver

Klapač J. Numerička analiza konstrukcije poda helikoptera pri udaru o tlo [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2015 [cited 2025 January 09] Available at: https://urn.nsk.hr/urn:nbn:hr:235:151242

IEEE

J. Klapač, "Numerička analiza konstrukcije poda helikoptera pri udaru o tlo", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:235:151242

Cite this item: https://urn.nsk.hr/urn:nbn:hr:235:151242

Please login to the repository to save this object to your list.

Metadata

Title	Numerička analiza konstrukcije poda helikoptera pri udaru o tlo
Title (english)	Numerical analysis of the helicopter floor structure at groud impact
Author	Josip Klapač
Mentor	Ivica Smojver (mentor)
Granter	University of Zagreb Faculty of Mechanical Engineering and Naval Architecture Zagreb
Defense date and country	2015-12-04, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Mechanical Engineering
Abstract	Ovaj se rad bavi numeričkom analizom konstrukcije poda helikoptera pri udaru o tlo. Validacija numeričkog modela aluminijske konstrukcije vršena je podacima iz literature iz kojih je za primjer uzeta konstrukcija poda helikoptera Westland WG30. Analiza se vrši u programu Abaqus/Explicit. U prvom poglavlju je objašnjena povijest upotrebe numeričkih analiza u simulacijama udara te pristup daljnjem radu. U drugom poglavlju vrši se validacija numeričkog modela aluminijske konstrukcije poda helikoptera, u kojem je objašnjen geometrijski model, numerički materijalni model s pripradajućom mrežom konačnih elemenata te dobiveni rezultati. U trećem poglavlju vrši se izrada numeričkog modela kompozitne konstrukcije helikoptera na temelju aluminijske konstrukcije iz prvog dijela. Objašnjeni su načini popuštanja prema Hashinovom kriteriju, te dobiveni rezultati. U četvrtom poglavlju ukratko su objašnjene Eiband krivulje, odnosno krivulje ljudskih tolerancija na G opterećenja. U zadnjem poglavlju dan je kratak zaključak obzirom na preživljivost posade i putnika iz dobivenih rezultata te komentari numeričkih modela konstrukcije poda helikoptera.
Abstract (english)	The subject of this Thesis is numerical analysis of the helicopter floor structure at ground impact. Validation of the numerical model of aluminum floor structure has been made by comparison with the data found in literature, from which the floor structure of Westland WG30 helicopter has been taken. The analysis has been performed in Abaqus/Explicit. The history of numerical analyses in crashworthiness applications has been introduced in the first chapter. In addition, the methodology followed in this Thesis has been explained in this chapter. The second chapter deals with validation of the numerical model of aluminum helicopter floor structure. The geometrical model, numerical Finite Element model and the employed material model have been explained in this Chapter. In addition, the obtained results have been shown. The third chapter deals with the numerical model of the composite floor structure which is based on the model introduced in the second chapter. The principles of Hashin failure criteria have been explained and the obtained results have been provided. The forth chapter briefly explains the Eiband curves, i.e. human crash tolerance curves. In the last chapter, a short conclusion has been made regarding pilots and passengers crash survivability based on the results obtained in chapters two and three. Conclusions on the numerical floor structure models have been also provided in this chapter.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:235:151242
Study programme	Title: Mechanical Engineering Study programme type: university Study level: graduate Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
Type of resource	Text
File origin	Born digital
Access conditions	Open access
Terms of use
Repository	Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb
Created on	2019-05-22 15:10:36