Pipe Dynamic Stress Analysis

COURSE 04 – ADVANCED DYNAMIC PIPE STRESS ANALYSIS- PART 1

(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.

WHO SHOULD ATTEND?

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.

Syllabus:

Overview of Dynamic Pipe Stress
Difference in Static and Dynamic
Types of Dynamic Pipe Stress Analysis, Dynamic Load Factor derivation
Basic Mathematic concepts such as Logarythm, Exponential function which are needed to understand the Vibration equations.
Modal Analysis theory and case study based on it
Harmonic Analysis theory and case study based on it
Response Spectrum Theory and case study based on it
Time History Analysis Theory and case study based on it
Vibration supports
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