Utjecaj proizvodnih pogrešaka na stabilnost projektila

undergraduate thesis

• Title (english): Influence of Manufacturing Errors on the Projectile Stability
• Author: Vanja Pajović
• Mentor: Milan Vrdoljak (mentor)
• Mentor: Zvonko Trzun (komentor)
• Committee member: Ivica Smojver (predsjednik povjerenstva)
• Committee member: Milan Vrdoljak (član povjerenstva)
• Committee member: Zvonko Trzun (član povjerenstva)
• Granter: University of Zagreb; (Croatian Defence Academy "Dr. Franjo Tuđman"); Zagreb
• Defense date and country: 2022-06-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences

Abstract

Cilj ovog rada je analiza utjecaja nesavršenosti proizvodnje na stabilnost topničkih projektila.
Let projektila simuliran je pomoću programskog paketa MATLAB. Zbog velike preciznosti i
pouzdanosti proračuna padnih točaka, izabran je 6DOF model leta. U ovaj model leta bit će
uvedena nedeterministički zadana pogrešaka izvedbe mlaznice, koja se često zapaža prilikom
izrade projektila, a koja ujedno ima i najveći utjecaj na stabilnost. Karakteristike projektila se
time mijenjaju tako da više ne odgovaraju karakteristikama idealnog projektila. Na kraju,
temeljem dobivene slike poremećenih putanja i analize totalnog napadnog kuta može se utvrditi
da li projektil i u kojoj mjeri gubi stabilnost.

Abstract (english)

The aim of this paper is to analyze the impact of manufacturing errors on the stability of artillery
projectiles. Some missiles were simulated using the MATLAB program. Due to the high
precision and reliability of the fall point calculations, the 6DOF flight model was chosen. Nondeterministic nozzle design error will be introduced into this flight model, which is often
observed during projectile construction, and which also has the greatest impact on stability. The
characteristics of the projectile are thus changed so that they no longer correspond to the
characteristics of the ideal projectile. Finally, based on the obtained image of the disturbed
trajectories and the analysis of the total angle of attack, it can be determined whether and to what
extent the projectile loses stability.

• Keywords: stabilnost; MATLAB; proizvodne pogreške; topnički projektil; 6DOF
• Keywords (english): stability; MATLAB; manufacturing errors; artillery projectiles; 6DOF
• Language: croatian
• URN:NBN: urn:nbn:hr:249:752527
• Study programme: Title: Military Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica inženjer/inženjerka vojnog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica inženjer/inženjerka vojnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-01-18 14:17:33