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Course Co-ordinated by
IIT Bombay
NPTEL
>>
Courses
>>
Civil Engineering
>> Soil Dynamics (Video) >>
L1-Introduction
Question in Lecture
Introduction
L1-Introduction
Vibration Theory
L2-Degrees of Freedom, SDOF System, Types of Vibrations
L3-SDOF System, Types of Vibrations, Free Vibration
L4-Problems on Tortional Motion
L5-Damped Free Vibrations
L6-Damped Free Vibrations, Definition of Critical Damping and problems
L7-Decay of Motion
L8-Forced Vibrations, Dynamic Magnification Factor
L9-Maxwells Diagram of DMF, Discussion on Phase
L10-Transmissibility Ratio, Response to Arbitrary, Step and Pulse Excitations
L11-Response to Arbitrary, Step and Pulse Excitations, Response to Impact Load
L12-Vibration Isolation, Vibrations Measuring Instruments
L13-Solutions of Quiz Questions, Multi-Degree of Freedom (MDOF) Systems
L14-(MDOF) System : Equation of Motion, Longitudinal Waves in an Infinitely long rod
Wave Propagation
L15-3 Dimensional Wave Propagation, Waves in semi-infinite media, Rayleigh Wave
L16-Love Wave, Waves in layered medium, 3D case-Inclined wave, Earthquake Waves
L17-Earthquake Waves; P-waves, S-waves, 3 circle method, Estimation of Earthquake Epicentre
Dynamic Soil Properties
L18-Stresses in Soil Element, Field Tests, Seismic Reflection Test
L19-Seismic Refraction Test, SASW Test, Laboratory & Model Tests
L20-Centrifuge Tests Stress Strain Behavior of Cyclically Loaded Soils
L21-Estimation of Gmax, Modulus Reduction Curves, Variation of Damping Ratio, Cyclic Plate load Test
L22-Liquefaction, Preliminary sceening, Simplified Procedure for Liquefaction
L23-Cyclic Stress Ratio, Evaluation of CRR, Correction Factors, Corrections for SPT
L24-Becker Penetrometer Test (BPT), Cone Penetrometer Test (CPT), SPT v BPT, SASW Test
Machine Foundations
L25-Types of Machine Foundations, Methods of Analysis, Design of Machine Foundations as per IS:2974 (Part-1)-1969
L26-Tschebotarioff's
L27-Problem on Tschebotarioff's method contd., Mass-Spring-Dashpot (MSD) Model
L28-MSD Model- Yawing mode of Vibration, Use of MSD model for analysis
L29-Problems on Use of MSD Model for Analysis, Rocking mode of Vibrations
L30-Torsional Mode/Yawing Mode, Constant Force type excitation, EHS Theory
L31-EHS Theory, Vibrational Control
L32-Use of EHS Theory for analysis
L33-Use of EHS Theory for analysis II
Soil Improvement Techniques
L34-Liquefaction mitigation methods,Vibro Compaction,Densification Techniques
L35-Soil Improvement methods,Dynamic Compaction,Reinforcement Techniques
Dynamic Soil-Structure Interaction
L36-Force-based Analysis,Dynamic analysis using MSD model
L37-Behaviour of Subgrade Soil below Rail Track
L38-Quiz
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Question:
sir, in practical case along with mass in msd free body weight acts, so we should consider weight along with mass or not?
By:
sangaiah
Date:
2013-04-13
The co-ordinator will post his answer
Question:
sir, while applying impact load for an two mass system ie mdof system m should be m1+m2 or only the mass that comes in direct contact with impact load
By:
sangaiah
Date:
2013-04-13
The co-ordinator will post his answer
Question:
while deriving for uneven runway condition sir you took at a=0 x*=vt* should we consider a in actual cases or what is your suggestion
By:
sangaiah
Date:
2013-04-13
The co-ordinator will post his answer
Question:
sir consider a impact load is acting in a system from ground in which msd is connected to ground, while drawing free body diagram should we consider i*diracs delta function as force acting on the mass or should we consider consider the transfered force through the spring and damper
By:
sangaiah
Date:
2013-04-13
The co-ordinator will post his answer
Question:
while deriving reaction force coming to the support sir you take x(t) of only steady state response should or should not we consider transient state of response
By:
sangaiah
Date:
2013-04-13
The co-ordinator will post his answer
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