Download GTU BE/B.Tech 2019 Winter 8th Sem New 2180103 Space Dynamics Question Paper

Download GTU (Gujarat Technological University) BE/BTech (Bachelor of Engineering / Bachelor of Technology) 2019 Winter 8th Sem New 2180103 Space Dynamics Previous Question Paper

1
Seat No.: ________ Enrolment No.___________

GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER ? VIII (New) EXAMINATION ? WINTER 2019
Subject Code: 2180103 Date: 21/11/2019

Subject Name: Space 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.

MARKS

Q.1 (a) Is there gravity in space? Justify. 03
(b) Explain Newton?s law of gravitation in detail. 04
(c) Define Space. Classify types of space vehicles. 07

Q.2 (a) Explain Mechanics of Circular Orbit. 03
(b) State and Prove Kepler?s 3
rd
law. 04
(c) With neat sketch explain different types of space trajectories. 07
OR
(c) Explain The Two body problem. 07
Q.3 (a) State and Prove Kepler?s 2
nd
law. 03
(b) Explain Zero potential energy configurations. 04
(c) Derive Orbit equation. 07
OR
Q.3 (a) What is Escape Velocity? Calculate the same for an object escaping from the
earth?s surface.
03
(b) Write a note on Elliptic orbit. 04
(c) With neat sketch explain The Hohmann transfer ellipse. 07
Q.4 (a) What is Attitude maneuvering? 03
(b) Why the stability of Satellite is very important? Write methods for stability
control of satellites.
04
(c) What are the major sources of Attitude disturbance torques? Explain any one in
detail.
07
OR
Q.4 (a) Establish a relation between Impulse and change in momentum. 03
(b) What do you mean by Dual spin satellite? Explain the functions of Rotor &
Platform with labeled diagram.
04
(c) Write a short note on Yo-Yo Mechanism. 07
Q.5 (a) What is (a) Re-entry corridor (b) Overshoot boundary & (c) Undershoot
boundary?
03
(b) How Re-entry is more important in (a) Ballistic missiles (b) Planetary entry
probes & (c) Manned spacecraft.
04
(c) Explain Motion of Re-entry objects using Motion Analysis Process (MAP). 07
OR

Q.5 (a) How re-entry mission is designed? Explain using block diagram. 03
(b) What are the functions of (a) Heat Shield & (b) Back Shell? 04
(c) Compare a study between Sphere, Cone & Blunted cone. And prove using
parameters like Deceleration, Heat rate, Accuracy why Blunted cone shape is
preferable for Re-entry vehicle design.
07

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