Download GTU BE/B.Tech 2019 Summer 7th Sem New 2170203 Vehicle Dynamics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Summer 7th Sem New 2170203 Vehicle Dynamics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ?VII(NEW) EXAMINATION ? SUMMER 2019
Subject Code:2170203 Date:10/05/2019

Subject Name:Vehicle Dynamics

Time:02:30 PM TO 05:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

2. Make suitable assumptions wherever necessary.

3. Figures to the right indicate full marks.


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MARKS

Q.1 (a) Define (i) Lift (ii) Drag. 03
(b) Explain SAE Vehicle axis. 04
(c) Derive an equation to calculate the dynamic axial load for the
following condition (i) Vehicle is on ground (ii) Vehicle is in low
speed acceleration (iii) vehicle is on grade.
07

Q.2 (a) Define (i) Slip angle (ii) Camber thrust. 03
(b) Describe about aerodynamic aids. 04
(c) Classify types of tyres with neat sketch along with their
advantages and disadvantages.
07
OR
(c) Define rolling resistance. Explain factors affecting rolling
resistance.
07
Q.3 (a) Define active suspension. 03
(b) Explain anti-dive suspension geometry. 04
(c) Illustrate about roll center analysis. 07
OR
Q.3 (a) Justify need of suspension system. 03
(b) Distinguish independent suspension and dependent suspension. 04
(c) Classify types of suspension systems along with pro and cones of
each.
07
Q.4 (a) Explain height of motorcycles center of gravity. 03
(b) Define wheelbase and steering axis angle of motorcycle. 04
(c) Explain Quasi-static rollover of a rigid vehicle. 07
OR
Q.4 (a) Justify importance of trail. 03
(b) Define fork offset and wheel flop of motorcycle. 04
(c) Explain Quasi-static rollover of a suspended vehicle. 07
Q.5 (a) Define (i) Camber (ii) Under steer (iii) Over steer 03
(b) Differentiate between steering system used in front wheel drive
system and steering system used in rear wheel drive vehicle.
04
(c) Justify need of steering system. Explain steering geometry errors. 07
OR

Q.5 (a) Define (i) Caster (ii) Neutral steer (iii) Wheelbase 03
(b) Explain four wheel steering system. 04
(c) Explain steering system forces and moments. 07
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