car crash analysis and optimization of vehicle front

35 Pages·2017·1.25 MB·English

by  Amir Ansari

ANJUMAN-I-ISLAM's KALSEKAR TECHNICAL
CAMPUS, NEW PANVEL
CAR CRASH ANALYSIS
AND
OPTIMIZATION OF VEHICLE FRONT
ANSARI AMIR 13ME09
ANSARI AZIM 13ME10
PATEL AKRAM 13ME34
KHAN ASIF 14DME131

under the guidance of
PROF. SHAKIL TADAVI
MECHANICAL ENGINEERING DEPARTMENT
INTRODUCTION
PROBLEM DEFINITION
AIM/OBJECTIVE/PURPOSE OF THE STUDY
REVIEW OF LITERATURE
METHODOLOGY
MODELLING

TYPES OF MODELLING
VARIOUS COMPONENTS OF BUMPER
ANALYSIS

TYPES OF ANALYSIS
PROCEDURE FOR ANALYSIS
RESULT

MODAL
EXPLICIT DYNAMIC
FATIGUE
PLANNING
REFERENCES
A crash simulation is a virtual recreation of a destructive crash
test of a car or a highway guard rail system using a computer
simulation in order to examine the level of safety of the car and its
occupants.
 Crash simulations are used by automakers during computer-aided
engineering (CAE) analysis for crashworthiness in the computer-aided
design (CAD) process of modelling new cars.
During a crash simulation, the kinetic energy, or energy of motion,
that a vehicle has before the impact is transformed into deformation
energy, mostly by plastic deformation (plasticity) of the car body
material (Body in White), at the end of the impact.
Bumper plays a big role to prevent more critical damage of the car.
This problem based on the material has been used to make this bumper.
The types of material play’s a big role to influence the front car bumper
condition after crashing.
This study deals with material type that best suit to be a composite
car bumper in order to absorption using supplimentary attachment to
optimize its performance in terms of energy and fulfill the aspect of
strength, lightweight, and impact absorption along with the fatigue life
of bumper.
The objectives of this project are:

The objective of this project is to estimate the expected fatigue
lifetime on the basis of degree of damage and time observations.
To design a composite car bumper by using CAD software that is DS
Solid works.
To perform an impact analysis of composite car bumper by using
ANSYS software.
To propose a suitable composite material for the car bumper.
To study the behavior of bumper system under different frequency
LITERATURE SURVEY
Sr.
Title Year Author Abstract Result Journal
No
A finite element (FE) model-
Vehicle-to-
The main effect plots were generated to
based design of experiments
vehicle
identify
Saeed methodology focused on
front-to-
Barbat, evaluating the effects of a few the significance of individual design
side crash
Xiaowei Li striking vehicle design variable. Science
1 analysis 2004
and Priya variables on dummy The responses were characterized by Direct
using a cae
Prasad responses of the struck quadratic
based
vehiclem
polynomial surfaces.
methodolo
in front-to-side im pact was

gy
developed.
FE frontal
crash The paper deals with crash For EV chassis frame model of the
Byeong Science
2 analysis of 2016 analysis of upper body and continuous changes in design
Sam kim Direct
NEV sub frame for NEV modifications were required
vehicles
The objective of this work is
he bumper, engine and the rails
to simulate a frontal impact
Tejasagar absorb most of the energy before the
Simulation crash of an automobile and
Ambati,K. wheel impacts
of validate the results. The aim
V.N.S the wall. Almost half of the energy of IJARM
3 vehicular 2012 is also to alter some of the
Srikanth & the crash is E
frontal materials of the components
P. absorbed by these components after
crash test with a view to reduce the
Veeraraju about 0.04sec
forces experienced during the
of the crash initiation.
crash
Sr.
Title year Author Abstract Result Journal
No
The
Deformation The article presents
The materials used in the car body offer
Properties of EEmil the methodology for
the highest potential for improvement.
High Strength Evin, specification of the Science
4 2014 High strength steel has been specifically
Steel Sheets Emil material properties Direct
developed by the steel industry to fulfill
for Auto- Wessly effects to overloading
the demands of the automotive industry
Body of human organism.
Components
Based on the
demands on crash
Crashworthin
Touraj analysis software,
ess ABAQUS/Explicit has been successfully
Gholami, which has been
Simulation of tested and introduced into the Crash ABAQUS
jurgen defined in a
5 Automobiles 2003 worthiness simulation utilizing contact users
Leschetick crash vision
with capability and spot weld modeling Conference
y, Ralf 2004,ABAQUS/Expli
ABAQUS feature.
Pabmann cit has been tested for
Explicit
crashworthiness
simulation.
Different K material constant & n strain
Material Calculation of
hardening exponent were obtained
properties deformation work &
Erika from ,Y=K*Ø𝑛 using MATLAB & to Science
biomechanical limits
& safety of
6 2016 Feechova create lightest car body that can be must Direct
for human organism
cars at crash
stiffer than current car bodies from
test At frontal crash
strength point of view
Concept
Literature
Problem
Proposed
solution
Planning
Modeling
Optimization
Analysis
Compare
Finalization
MODELLING

MODELLING is the use of computer systems to aid in the
creation, modification, analysis, or optimization of a design.
TYPES OF MODELLING

• 3-D Wire Frame Modelling

• Surface Modelling

• Solid Modelling