This download link is referred from the post: JNTUA M.Tech 1st Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)
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Code: 9D15102
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M.Tech I Semester Regular & Supplementary Examinations January/February 2017
ADVANCED MECHANISMS
(Machine Design)
Time: 3 hours
Max. Marks: 60
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Answer any FIVE questions
All questions carry equal marks
- (a) Derive an equation for mobility or degree of freedom (DOF) for spatial mechanisms.
- (b) What do you mean by spherical triangle and explain the sine rule and cosine rule for spherical triangles.
- Derive Euler-Savary equation with respect to the inflection circle.
- Driving link (input link) of a four bar mechanism revolves at a constant speed of 2 rad/sec, in counter clockwise direction. Determine, for output link the: (i) Angular velocity. (ii) Angular acceleration. (iii) Rate of change of angular acceleration. (iv) Radius of curvature of the polode. The following data refer to four bar mechanism.
Fixed link (AD) = 120 mm;
Coupler (BC) = 45 mm;
Input link (AB) = 30 mm;
Output link (CD) = 60 mm;--- Content provided by FirstRanker.com ---
Angle DAB = 45° - (a) Explain the construction of Burmester curve with respect to guiding a body.
- (b) Explain the properties of 'Rotocenter triangle', when guiding a body through three distinct points.
- Write a note on ‘Hrones and Nelson Motion Atlas' related to path generation.
- (a) Explain the Overlay's method of the length synthesis of four bar function generator.
- (b) Design (draw to scale the dimensions of links) a four bar linkage to generate y = x1.6 in the interval 1 ≤ x ≤ 4. The length of the largest link is 300 mm. Use three point accuracy of Chebyshe's spacing. The input link rotate from 30° to 120°, whereas the output link rotates from 60° to 150°.
- (a) Why D-H convention does not give unique frame assignment for a given manipulator?
- (b) Sketch and explain STANFORD ARM industrial robot manipulator.
- What are the singularities of a manipulator? How are they classified and determined? Explain briefly.
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This download link is referred from the post: JNTUA M.Tech 1st Sem last 10 year 2010-2020 Previous Question Papers (JNTU Anantapur)
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