Pipe Dynamic Stress Analysis


(This course is a bunch of 10 modules, now six modules are live) INTRODUCTION / COURSE INFO

 Would you be interested knowing the answers of questions like:

„What does exactly „Natural Frequency‟ mean? Not only the Text book meaning but the

Significance its significance as well.

„Do you want to know, „What are the TYPES of DYNAMIC ANALYSIS and when to use which type.‟

„Does Spring absorb the Pipe Vibration?‟

„Do you want to make your Basics of Dynamic Analysis clear.. such as Logarithm, Exponential function etc.

„How CAESAR II calculates the natural frquency? Would you like to perform few manual calculations for Dynamic analysis?‟

……… And answers to many more ADVANCED questions along with Practical problems.

To make yourself a NEXT LEVEL STRESS ENGINEER you must aquire Dynamic Stress Analysis kills as well.

The course starts with the fundamentals required to perform Dynamic Pipe Stress Analysis. It also talks about the International code requirements, best industry practices and includes the Practical application of Dynamic Pipe Stress Analysis using “CEASAR II” software.

The knowlede of Dynamic Pipe Stress Analysis will help you to become a „Acomplished Stress Engineer. You will be able to solve the Site specific Vibration Problems and also the care to be taken while performing Static analysis.


 This course needs a pre-requizite of „Working Knowledge of CAESAR II or Similr Software‟ as we have already cover the software knowledge in our „Advance Pipe Stress Analysis- Static‟ course.

However, any aspiring engineer, he/she can be a trainee engineer, designer, Sr. Engineer, Plant Operating engineer, Project engineer or a Manager, who wants to clear his/her fundamentals clear and wants to know more about this subject and software usage can attend this course.


  1. Overview of Dynamic Pipe Stress
  2. Difference in Static and Dynamic
  3. Types of Dynamic Pipe Stress Analysis, Dynamic Load Factor derivation
  4. Basic Mathematic concepts such as Logarythm, Exponential function which are needed to understand the Vibration equations.
  5. Modal Analysis theory and case study based on it
  6. Harmonic Analysis theory and case study based on it
  7. Response Spectrum Theory and case study based on it
  8. Time History Analysis Theory and case study based on it
  9. Vibration supports
  10. FIV & AIV

MODULE 1: Overview of Dynamic Stress Analyis (65 mins Video)

This module intoroduces us with the Dynamic Pipe Stress Analysis. Trully speaking the subject name is „Kinematics and Dynamics of Machinery „ or simply „Vibrations‟. However, it is most know as Dynamic Analysis in the domain of Oil & Gas or Process plant engineering industry.

This module starts with definition of Dynamics and difference between Static and Dynamic loading. It also touches concepts of Dynamic Load Factor, Natural Frequency etc.

MODULE 2: Basics of Vibrations (Video 1 : 2 hrs 25 mins & Vide0 2: 20mins)

This course is also useful for the Fresh Graduates or undergraduates of Mechanical Engineering. It covers therory of

  • Single Degree of Freedom system
  • Two Degree of Freedom system
  • Free and Forced Vibrations
  • Damping: Overdamped, Underdamped and Critically Damped system
  • Types of Damping
  • Mathematical representation of vibrting body
  • Liner to Periodic motion relation
  • Mathematicsbasics: Logarythmic,   Exponential,   Differential   equation, Fourier Series, Homogenous and non- homogeneous equations etc.
  • Fundamental Equation of Vibration and Natural Frequency derivation
  • Damping Ratio

MODULE 3: Modal Analysis (Video 1: 1 hr 16 mins & Video 2: 50 mins)

A highly recommended Course for all stress engineers even though they do not want to take up the entire course because every static engineer at least does the Modal Analysis to determine the Natural Frequency of Pipe. But Modal Analysis is not limited to this specific task. There is much more to know.

This module covers

  • Single Degree of Freedom system- revision
  • Manual calculation of Natural frequency and its comparision with software
  • Natural frequencies on various boundary conditions
  • Introduction to CAESAR II Dynamic Analysis Processor in detail
  • Linear and Non linear supports and its effect on natural
  • Modes of Vibrations
  • Effect of Friction on vibration
  • What are „Mode Shapes‟?
  • Lumped mass vs Consistent mass approach
  • How to review the CAESAR II results and its

MODULE 4: Harmonic Analysis (Video 1: 1 hr 32 mins & Video 2: 1 hr 30 mins & Video 3: 30 mins)

Most of the site related issues of vibrations fall under this category of analyis approach. The thoery behind Harmonic Analysis makes the approach clear towards analysis. This module covers

  • Free and Forced Vibration
  • Undamped Harmonic equations
  • What do we mean by „Response‟
  • Resonance, beat phenomenon
  • Sources of Vibrations
  • A detailed case study of „Inline vibrating Pump‟ and its verification by hand calculations
  • A case study demonstrating usage of Damper using CAESAR II
  • CAESAR II Harmonic Analysis Input processor commands
  • Interpreting software results
  • Vibration Fatigue analysis
  • occasional stress equation and its allowable

MODULE 5: RESPONSE SPECTRUM ANALYSIS (Video 1: 1 hr 11 min, video 2: 1 hrs

12 mins, video 3: 45 mins, video 4: 55 mins , video 5: 24 mins)

The most needed subject at FEED or Detailed Engineering stage Pipe Stress Analysis which a stress engineer must know is the Response Spectrum Analysis. The most recommended method to determinde Seismic Loading and mandetory for high seismic zone area, nuclear power plant.

This modue covers

  • What is „Response Spectrum?‟
  • How to read Response spectrum data?
  • A case study to calculate deflection and forces due to earthquake by hand calculations. Its verification with CAESAR II results
  • A detail study on Earthquake, its types, terminologies, a white paper overview
  • How to generate / read response sepctrum
  • Manual calculation to find Static „g‟ factor from given
  • Detailed overview of CAESAR II Response spectrum module
  • To understand various combinition methods of response spectrum
  • How to add responses of two different earthquakes
  • Understanding the input and output results of CAESAR II
  • A case study on the response spectrum analysis

MODULE 6: TIME HISTORY ANALYSIS (Video 1: 1 hr 17 mins & Video 2: 1 hr 7 mins)

This approach is the most accurate to perform any kind of Dynamic analysis. However, it shall be used only one has Time specific input parameters. This is the last type of the Dynamic analysis. This module covers

  • How Time History approach is different than Response spectrum
  • Concepts such as Impulse load, time steps
  • Cut off frequencies for Times History
  • A case study of Surge Analysis (Water Hammer Analysis) to understand Time History approach
  • Detailed overview of CAESAR II Response spectrum module
  • Understanding the input and output results of CAESAR II