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  Introduction to Modal Analysis
Introduction to modal analysis
The direct entry into modal analysis. From necessary basic understanding and practical tips on how to proceed, to efficient data acquisition, you will be given the tools to measure data for a modal analysis in ArtemiS suite (ASM18).
Introduction to modal analysis | Part 1 - What is a mode shape? | First steps
 
In this first video we will teach you the basic understanding of a "mode shape". This knowledge of the fundamentals of modal analysis is necessary to start an own impact testing data acquisition.
Watch video tutorial
Defining Points and Coordinates | Introduction to Modal Analysis | Part 2
 
We will teach you how to start a modal analysis on an object:
The first step is to define your measuring points.
Next, define a suitable coordinate system for your test object.
Modal analysis is much easier, if these first steps have been correctly made.
Watch video tutorial
Roving Hammer Method | Introduction to Modal Analysis | Part 3
 
In this video you will learn the method „Roving Hammer“ to acquire the data for a modal analysis.
We’ll give you a brief overview about the following issues of this analysis method:
the principle of the roving hammer method
what sensors are required (accelerometer and impulse hammer)
the necessary quality check of each strike (strike was good or bad)
a typical analysis result and its interpretation
Watch video tutorial
Roving Accelerometer Method | Introduction to modal analysis | Part4
 
In this video you will learn the method „Roving accelerometer“ to acquire the data for a modal analysis.
We’ll give you a brief overview about the following issues of this analysis method:
the principle of the roving accelerometer method
advantages of this testing method
what sensors are required (accelerometer and impulse hammer)
the necessary quality check of each strike (strike was good or bad)
a typical analysis result and its interpretation
Watch video tutorial
Different hammer tips | Introduction to modal analysis | Part 5
 
In this video you will learn why an impulse hammer is supplied with different tips.
We will teach you:
how the different hammer tips effect the excitation of the measurement object
the handling of the tips
the obtained frequency ranges
Watch video tutorial
Right sampling rate and block size for impulse tests NVH | Modal Analysis |
Part 6
 
In this video we will teach you how to set up the analysis parameters for your impulse measurements:
how to understand the relationship between sampling rate and chosen block size to get a certain frequency resolution
you’ll see in a practical example how this relationship works, and what else must be considered in the setup for a modal impact testing
Watch video tutorial
 
   
 
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