Analiza mehanizma mahokrilne letjelice

undergraduate thesis

• Title (english): Analysis of flapping wing vehicle mechanisms
• Author: Fran Ušurić
• Mentor: Dario Zlatar (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2022-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Aviation, Rocket and Space Technology

Abstract

U ovom se radu razmatraju kinematička svojstva mehanizama mahokrilnog tipa i njihova mogućnost da svojim gibanjem opisuju gibanje krila insektnog tipa.
Usporedbom s traženom kinematikom mahanja krila vinske mušice odabiru se dva mehanizma na temelju čijih se kinematičkih shema izrađuje CAD model mehanizama.
U programskom paketu ADAMS modelira se kinematička struktura željenog kinematičkog profila vinske mušice kao i modeli dva razmatrana mehanizma te se primjenom dinamike više tijela pronalaze i uspoređuju profili gibanja krila kao i potrebna snaga za pogon mehanizma pri različitim frekvencijama mahanja.
Dodavanjem elemenata dinamičke sprege utvrđuje se mogućnost poboljšanja energetske učinkovitosti razmatranih mehanizama.
Prilagodbom CAD modela aditivnim se tehnologijama proizvode razmatrani modeli mehanizama i ocjenjuje se njihova funkcionalnost.

Abstract (english)

This thesis presents an overview of the kinematical properties of flapping-wing mechanisms and their ability to reproduce the movement of the wings of a real insect.
Considering the desired kinematic profile of a fruit fly, two mechanisms are selected. According to the kinematic diagrams of the two mechanisms, the CAD models are created.
Using the ADAMS software, the kinematic structure of the desired kinematic model of a fruit fly is modeled as well as the kinematic structure of the two selected mechanisms. Using the Multibody Dynamics the flapping patterns are determined and compared as well as the required power at different flapping frequencies.
Improving the efficiency of the selected mechanisms is evaluated by adding coupling elements.
The CAD models of the mechanisms are adapted for the additive manufacturing of physical models whose functionality is evaluated.

• Keywords: pokretno krilo; mahokrilni let; dinamika više tijela; kinematička struktura; energetska učinkovitost; aditivne tehnologije
• Keywords (english): flapping wing; insect-type flapping; Multibody Dynamics; kinematic structure; additive manufacturing
• Language: croatian
• URN:NBN: urn:nbn:hr:235:150351
• Study programme: Title: Aeronautical Studies; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka zrakoplovnog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka zrakoplovnog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-02-24 22:38:07