Numerička analiza udarnog opterećenja na bočni profil baterijskog paketa električnog vozila

master's thesis

• Title (english): Numerical analysis of the impact load on the side profile of the battery pack of electric vehicle
• Author: Bruno Masnica
• Mentor: Lana Virag (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-12-09, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Električna vozila predstavljaju novi trend u automobilskoj industriji te sadrže brojne prednosti i nedostatke nad konvencionalnim vozilima. Glavni izazovi električnih vozila vezani su uz baterijski paket, odnosno njegovu sigurnost, masu i domet koje električno vozilo može ostvariti. Upravo zbog toga unutar ovog rada provedena je numerička simulacija udarnog opterećenja na bočni profil s ciljem smanjenja mase profila i povećanje volumena za baterijske ćelije uz zadržavanje mehaničkog integriteta, čime bi se osiguralo povećavanje gustoće energije baterijskog paketa i posljedično tome povećavanja dometa električnog vozila.
Unutar rada je provedeno istraživanje relevantnih normi te istraživanje i analiza trenutnih tržišnih rješenja s naprednom geometrijom bočnog profila koja namijenjena učinkovitoj apsorpciji energije bočnog udara. Na temelju toga modelirana i analizirana je inicijalna geometrija bočnog profila, a potom je geometrija iterirana s ciljem poboljšavanja apsorpcije energije udara i smanjenja pomaka bočnog profila prema unutrašnjosti baterijskog paketa. Za profil s najboljim svojstvima detaljno je prikazana analiza rezultata numeričke simulacije, a potom je i prikazan utjecaj smanjenja dimenzija bočnog profila na povećanje gustoće energije baterijskog paketa.

Abstract (english)

Electric vehicles represent a new trend in the automotive industry, offering numerous advantages and disadvantages compared to conventional vehicles. The main challenges of electric vehicles are related to the battery pack, specifically its safety, weight, and the range the vehicle can achieve. For this reason, this study includes a numerical simulation of impact load on the side profile with the aim of reducing weight and volume while maintaining mechanical integrity, thereby increasing the energy density of the battery pack and, consequently, the range of the electric vehicle.
The study also involved researching relevant standards and analyzing current market solutions with advanced side profile geometries designed for effective energy absorption during side impacts. Based on this, the initial geometry of the side profile was modeled and analyzed, followed by iterative geometry modifications aimed at improving energy absorption and reducing the inward displacement of the side profile toward the battery pack. For the profile with the best properties, a detailed analysis of the numerical simulation results is presented, as well as the impact of reducing the side profile dimensions on increasing the energy density of the battery pack.

• Keywords: električna vozila; baterijski paket; metoda konačnih elemenata; numerička simulacija; udarno opterećenje; apsorpcija energije
• Keywords (english): electric vehicles; battery pack; finite element method; numerical simulation; impact load; energy absorption
• Language: croatian
• URN:NBN: urn:nbn:hr:235:116093
• Study programme: Title: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering, Mechanics and Robotics, Autonomous Systems, Mechatronics and Robotics; Course: Engineering Modelling and Computer Simulation; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka strojarstva (sveučilišni/a magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2026-11-28
• Created on: 2024-11-28 13:21:10