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PROJECT BRIEF
My focus of this project is to understand the structural design of chassis (Tubular &Monocoque frame)
Using my strong CAD skill to engineer chassis and understand the relationship in different structures.
TIME: 2023 FALL
DURATION: 6 WEEKS
SOFTWARE
4 CHASSIS CATEGORY
Ladder Frame
Tubular Frame
Unibody
Monocoque Frame
UNIBODY FRAME
VS
MONOCOQUE FRAME
Larger interior space, safety, unitized vehicle body with tubes and box section
Lightweight, rigidity, hypercar usage, and Body Panels are key structural components
TUBULAR FRAME
VS
Design for performance vehicle since its lightweight and strength
LADDER FRAME
Mainly for transport heavy loads due to its high strength and rigidity
TECH DRAWINGS
DESIGN BEHIND IT
The main structure of the vehicle body is a monocoque chassis, and the front and rear end of the chassis choose tubular frame to reduce the production difficulties and cost.
ORTHOGRAPHY OF BIKE
Height: 1250mm
Ground Clearance: 115mm
Length: 4850mm
Width: 2000mm
BENCHMARK
Front tire: 265/35/ZR 20
Rear tire: 325/30/ZR 21
Length: 4850mm
Height: 1250mm
Width: 2000mm
Ground Clearance: 115mm
CAD MODEL (SOLIDWORKS)
PERIOD OF TIME: 48H
INTRODUCING TM - 25
Monocoque chassis concept
THE BODY STRUCTURE STRENGTH GRADE
Ultra high-strength steel
Hinge Pillar & Rocker Panel
A Pillar & B Pillar
Scuttle & Front side frame
Floor Frame
Engine Mount / Rear End Frame
Extra high-strength steel
Motor Mount / Front End Frame
Inside Sill
Very High-Strength Steel
Crash Can
Rear Firewall
Torque TunnelFloor Panel
Rear Frame
High-Strength Steel
Engine Mount / Rear structure
Firewall
Aluminum
Rear Cross Member
Front Cross Member
WEIGHT EFFICENCY
Based on comparison, Monocoque construction significantly reduces the overall weight of the vehicle by eliminating the need for a separate heavy frame and the compound material it chooses. The reduction in weight improves fuel efficiency and vehicle performance.
INCREASED RIGIDITY AND SAFETY
Through the research, I found out that the integral design of the chassis and body enhances the structural rigidity of the vehicle. This rigidity translates into better handling, stability, and safety, especially in the event of a collision, as it provides better energy absorption.
DESIGN FLEXIBILITY
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Monocoque construction gave us more flexibility in shaping the vehicle. This is because the body components contribute to the load-bearing structure, allowing for innovative designs that can improve aerodynamics and the overall aesthetic appeal of the vehicle.
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