Vibration
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Introduction to vibration measurements
This training is aimed at technicians and engineers who want to acquire or update their knowledge in the field of vibrations.
Provide you with the basic physical concepts of vibrations, the vocabulary and practical experience required to perform correct measurements.
- The source of vibrations and key information on vibration phenomena
- The mechanical parameters (mass, stiffness, damping)
- Other parameters: acceleration, displacement
- Amplitude of vibration signals and frequency analysis
- Principle of mechanical resonance
- Measurement system and measuring equipment
- Practical exercise in measuring on a rotating machine model
- Determination of the resonance frequencies of a structure
Diagnosis of rotating machinery faults Level 1
This training course is primarily aimed at servicing, maintenance, operation and inspection staff, or machine installers with little or no experience in this area.
Provide you with the basic concepts of vibration analysis of rotating machines and the tools needed to implement condition-based maintenance.
- The principle and challenges of condition-based maintenance
- Spectral analysis of different types of signals
- The basics of diagnosis
- Concepts of typological spectra
- Basic diagnosis of the main faults
- How to establish a condition-based maintenance policy
Diagnosis of rotating machinery faults Level 2
This training course is primarily aimed at servicing, maintenance, operation and inspection staff, or machine installers who carry out vibration analysis to ensure the monitoring and diagnosis of their machines and who want to improve their knowledge.
To enable you to identify the exact source of a vibration problem on a rotating machine by applying a rigorous diagnostic methodology and to introduce you to the the ambiguities of diagnosis.
- Basic signal analysis theories and functions: transfer function, shock theory, periodic shock, measurement of envelope detection phase, cepstrum
- Dynamic structural analysis
- Concepts of typological spectra
- The ambiguities of diagnosis
- Implementation
Diagnosis of rotating machinery faults – Case study
This training course is aimed at staff who carry out vibration diagnosis and who would like to broaden their experience in this field. It is also designed for inspection, control and maintenance staff required to perform vibration measurement. This course is primarily interactive and the programme is divided into modules according to the topics which are of most interest to the participants
To enable you to gain further experience and implement a rigorous diagnostic methodology based on a real case handled by our teams in a company.
- The most relevant real case studies for various types of machine
- The theoretical and physical principles as well as the methods for establishing a 1st and 2nd level diagnosis are reiterated for each case
- Possible solutions for diagnosing unresolved problems.
Machine diagnosis using electrical current analysis
This training course is primarily aimed at servicing, maintenance, operation and inspection staff responsible for the predictive maintenance of assets.
To enable you to acquire a rigorous approach in the vibration diagnosis of electric motors.
To enable you to use analysis of the intensity of currents and tachometric signals as monitoring and diagnostic tools.
- The basics of the functioning of an asynchronous motor
- Typological spectra
- Basic analysis techniques
- Additional analysis techniques
- Electrical measurements
- Taking stator resonance into account
- Case study
Turbomachinery Expertise
This training course is aimed at design and engineering department managers, maintenance engineers and technicians who use vibration analysis to diagnose rotating machinery faults.
Turbomachinery plays a strategic role in most industrial production processes. Therefore, it is important to understand the dynamic behaviour of shaft alignment and the characteristics of potential faults that could be encountered in order to act on time .
- The different turbine technologies
- The different sensors used
- Physical aspect of dynamic behaviour
- Stability graph of slide bearings
- Concepts of rigid and flexible rotors
- The main mechanical phenomena encountered and their representations
- Analysis techniques and their interpretations
- Acceptance and installation
- Case study
Engineering Vibrations
This training course is aimed at engineering managers, responsible for rotating machinery, design and engineering department managers and maintenance engineers and technicians who work on rotating machinery
To enable you to predict the vibration behaviour of a machine before its installation on the receiving structure and to define the maintenance and monitoring system appropriate for the different types of machinery
- Vibration concepts
- Installation of machines, standards
- Analysis of transfer pathways
- Installation acceptance at the manufacturer's
- Modal analysis of the receiving structure
- Determination of connection stresses
- Provisional calculation of the behaviour of the machine on the receiving structure
Structural dynamic analysis – Experimental modal analysis
This training course is aimed at test or maintenance engineers and technicians, design and engineering department managers confronted with structural dynamic behaviour issues
To introduce you to the steps of experimental modal analysis required to understand the vibration phenomena of your assets
To enable you to master the various tools available for characterising the dynamic behaviour of your structures
- Basic concepts relating to the dynamic behaviour of structures
- The one degree of freedom and multiple degrees of freedom system, influence of damping
- The modal diagram
- Experimental modal analysis
- Modal extraction method
- Finite element modal analysis, concept of model adjustment in relation to experimental modal analysis
- Practical exercises
Vibration testing
This training course is designed for engineers and technicians involved in vibration testing (fatigue, qualification, etc.)
To introduce you to the different methods of vibration testing, their advantages, disadvantages and complementarities, and to enable you to choose the type or types of test(s) best suited to your requirements.
- Recap of signal processing, FFT analyser, frequency functions and units, regulation loop, choice of sensor
- Introduction to the operation of an electrodynamic exciter
- Tests: sine, random, shock, combined
- Multipoint inspection
- Resonance detection and monitoring
- Definition of a vibration testing system, implementation and operation
- Test sizing calculation
- Realisation of connecting parts between the exciter and samples undergoing the
Human Body Vibrations
This training course is aimed at engineers responsible for health and safety at work stations, as well as ergonomists, doctors and experts who would like to evaluate, measure and reduce workers’ exposure to vibrations.
To provide with an approach for assessing and measuring workers' exposure to vibrations and determining the actions to take to reduce their exposure
- Reminder of the basic vibration phenomena
- Applicable regulations
- Associated standards
- Hand, arm, body vibrations
- Constitution of homogeneous exposure groups (HEG)
- Exposure measurement: measurement methods, measurement weighting
- Possible actions for reducing workers' exposure
- Implementation