Subject Code:07A80107 L:4 T/P/D:1 Credits:4 Int. Marks:20 Ext. Marks:80 Total Marks:100
UNIT I:
Theory of vibrations: Basic definitions- free and forced vibrations with and without damping for single degree freedom system- Resonance and its effect – magnification – Logarithmic decrement – Transmissibility
UNIT II:
Natural frequency of foundation – Soil system: Barkan’s and IS methods – pressure bulb concept – Pauw’s Analogy.
UNIT III:
Wave propagation: Elastic waves in Rods – Waves in elastic Half space.
UNIT IV:
Dynamic Soil Properties: Field and Laboratory methods of determination – Uphole, Down hole and cross hole methods – Cyclic plate load test – Block vibration test – Determination of Damping factor.
UNIT V:
Machine Foundations: Types, Design criteria, permissible amplitudes and bearing pressure.
UNIT VI:
Block foundation: Degrees of freedom - analysis under different modes of vibration
UNIT VII:
Analysis of Two Degree freedom systems under free and forced vibrations -Principles of Design of Foundations for reciprocating and impact machines as per IS code.
UNIT VIII:
Vibration Isolation: Types and methods – Isolating materials and their properties
Theory of vibrations: Basic definitions- free and forced vibrations with and without damping for single degree freedom system- Resonance and its effect – magnification – Logarithmic decrement – Transmissibility
UNIT II:
Natural frequency of foundation – Soil system: Barkan’s and IS methods – pressure bulb concept – Pauw’s Analogy.
UNIT III:
Wave propagation: Elastic waves in Rods – Waves in elastic Half space.
UNIT IV:
Dynamic Soil Properties: Field and Laboratory methods of determination – Uphole, Down hole and cross hole methods – Cyclic plate load test – Block vibration test – Determination of Damping factor.
UNIT V:
Machine Foundations: Types, Design criteria, permissible amplitudes and bearing pressure.
UNIT VI:
Block foundation: Degrees of freedom - analysis under different modes of vibration
UNIT VII:
Analysis of Two Degree freedom systems under free and forced vibrations -Principles of Design of Foundations for reciprocating and impact machines as per IS code.
UNIT VIII:
Vibration Isolation: Types and methods – Isolating materials and their properties
1) Handbook of Machine Foundations by P.Srinivasulu and G.V.Vaidyanathan, Tata McGraw Hill
2) Soil Dynamics by Shamsher Prakash
1) Dynamics of Bases and Foundations by Barken, McGraw Hill Publishing Co.,New York
2) Vibration of Soils and Foundations by Richart, Hall and Woods, Prentice Hall, eaglewood Cliffs, New Jersy, USA.