izpis_h1_title_alt

Aerodinamika v modelih za računalniško simulacijo letenja ptic v jati
Pangeršič, Dominik (Author), Lebar Bajec, Iztok (Mentor) More about this mentor... This link opens in a new window

URLURL - Presentation file, Visit http://eprints.fri.uni-lj.si/3205/ This link opens in a new window

Abstract
Z nalogo se osredotočamo na preučitev modelov, ki upoštevajo simulacijo aerodinamike letenja ptice z zamahovanjem kril, in analizo možnosti vpeljave teh algoritmov v vedenjske modele letenja ptic v jati, ob izvajanju simulacije v realnem času. S tem namenom smo izdelali podrobnejšo primerjavo med modeli, ki so pri današnji strojni zmogljivosti najbolj primerni za izdelavo celovitega fizikalnega sistema letenja ptic. Na podlagi tega smo predstavili način implementacije, s prednostmi in omejitvami. Natančneje se z nalogo osredotočimo na predstavitev gibanja ptice, kompleksnosti modela ptice in pristop avtomatske rekonstrukcije raznolikih vrst ptic. Predstavimo model, za katerega z uporabo poenostavljenih enačb računamo aerodinamične sile in predstavimo vpeljavo stabilnih PD krmilnikov. V okviru tega podrobneje opišemo štiri različne, najbolj primerne pristope fizikalno zasnovanih simulacij letenja z zamahovanjem, ki so: a) vizualno prepričljiv model, b) poenostavljen model, c) model z upoštevanjem zračnih tokov in d) podatkovno usmerjeni model. V zaključku predstavimo vpeljavo učnega modela ptice, ki za način krmiljenja v 3D prostoru deluje na podlagi pred-definirane poti in hevristične predstavitve želene orientacije. Z namenom izdelave krmilnika, primernega za vpeljavo v model letenja v jatah, predstavimo metodo združevanja zamahov, brez potrebe hranjenja večje količine podatkov. Zaradi potrebe po izdelavi robustnega krmilnika letenja predstavimo tudi način izdelave podatkovne baze zamahov, namenjene manevriranju pod različnimi vpadnimi koti. Za konec predstavimo možne izboljšave in ideje za nadaljnje delo.

Language:Unknown
Keywords:poenostavljena aerodinamika, PD, SPD, igre, simulacija, skupinsko vedenje, umetno življenje
Work type:Not categorized (r6)
Organization:FRI - Faculty of computer and information science
Year:2015
COBISS.SI-ID:1536639171 Link is opened in a new window
Views:429
Downloads:97
Metadata:XML RDF-CHPDL DC-XML DC-RDF
 
Average score:(0 votes)
Your score:Voting is allowed only to logged in users.
:
Share:AddThis
AddThis uses cookies that require your consent. Edit consent...

Secondary language

Language:Unknown
Title:Aerodynamics in models for a computer simulation of bird flocking
Abstract:
This thesis focuses on examining flapping flight models, and the possibility of their introduction in behavioural algorithms, all while still being able to run in real time. For this purpose, we present a detailed comparison between flapping flight models that are with today's hardware capabilities in mind best suited for the development of a comprehensive physical system of flying birds. We present their implementation specifics as well as the advantages and limitations. More specifically, we first present an overview of bird flight mechanics, the complexity of 3D bird models suitable for the automatic generation of diverse kinds of birds. We continue by presenting a model for calculating aerodynamic forces with the use of simplified equations and suggest the integration of stable PD controllers. In the context of our problem, we then describe four different, but most appropriate approaches of physically based simulations of flapping flight: a) a visually convincing model, b) a simplified model, c) a model with consideration of airflows and d) a data-driven model. In the discussion part of this thesis, we introduce a type of a learning flapping flight model capable of steering in a 3D space, which works based on a pre-defined path and a heuristic representation of the desired orientation. With the intention of making the controller appropriate for behavioural algorithms, we introduce a procedure for combining strokes, without unnecessarily large data storage. Following the need of a robust flapping controller, we propose a wingbeat database that is able to manoeuvre under different angles of attack. We conclude by presenting possible improvements and ideas for further work.

Keywords:simplified aerodynamics, PD, SPD, games, simulations, group behavior, artificial life

Similar documents

Similar works from RUL:
Similar works from other Slovenian collections:

Comments

Leave comment

You have to log in to leave a comment.

Comments (0)
0 - 0 / 0
 
There are no comments!

Back