Basic seminars – dates in Darmstadt

101 | Balancing of rigid rotors - Basics
(in German language)

101 | Balancing of rigid rotors - Basics
(in German language)

Practice and Theory

Target

Fundamentals of balancing and its application,
Operation of balancing machines (measuring machine) with demonstration and exercising of typical balancing procedures.

Motivation

Using the capabilities of balancing machines and correct application of balancing procedures.
Chance to agree on a clear common “language of balancing” which can boost understanding between your various divisions dealing with balancing.

Participants

All staff members who need to learn about fundamentals of balancing or who want to update their know-how and skills:
Operators, supervisors, production planners, also process engineers, quality staff, designers, R&D members, all persons in charge of a balancing process and being asked from time to time for a decision.

Required qualifications
Understanding technical principles.

Duration
2 Days

Possible combination of courses
These courses are often followed by an advanced course (102), so that both courses can be booked together.

Topics

Fundamental know-how Knowledge	Practicing Using the fundamental know-how

Definitions, balancing, vibration unbalance, eccentricity, rotation, centrifugal force unbalance vectors and –components, unbalance types	Experience using demo-rotor, set of weights user-related examples of calculations setting measuring units
Measuring unbalance, set-up, drive systems, working ranges, speed, safety, mass-spring-system, resonance	Experience with demo-rotor and machine Setting of measuring unit, mechanical components and drive units, using hard-bearing machines and soft-bearing machines. Independent, but coached hands-on of complete set-up including determination of balancing tolerances acc. to quality grades (ISO), acting radii, etc.
Balancing tolerances unbalance correction (principles)	Application related calculations and choice of options on measuring units of universal balancing machines

2

1610 EUR

21. - 22.
1012504d

11. - 12.
1012511d

24. - 25.
1012526d

101 | Balancing rigid rotors - Basics
(in English language)

2

1610 EUR

11. - 12.
1012507e

102 | Balancing of rigid rotors - Advanced course
(in German language)

102 | Balancing of rigid rotors - Advanced course
(in German language)

Practice and Theory

Target

Advanced knowledge to define suitable balancing procedures
Assess typically employed methods (e.g. indexing balancing)
Recognition of typical errors and according troubleshooting

Motivation

Use of the capabilities of balancing machines more efficiently and generally optimise the balancing process as a whole.
Improved targeted approach to trace errors
Understanding interaction between several rotor parts including fitting errors.

Participants

All having responsibility for balancing.
Operators who are working as professional, competent partners in the company, supervisors, designers, process and production engineers, staff active in development, quality assurance and those who are in contact with customers or suppliers.

Required qualifications
Participation in seminar 101 – Balancing rigid rotors – Basics or good knowledge of balancing technology.

Duration
1.5 days

Possible combination of courses
These courses are often preceded by a basic course (101), so that both courses can be booked together.

Topics

Advanced know-how
Knowledge

Practicing
Using the advanced know-how

Tracing errors on a rotor with prepared errors,

with wrong electronic and mechanical setting, and misadjusted machine

Use of vector indication to interpret behaviors and find conclusions

Setting on measuring unit to support finding errors.

Tracing errors on a rotor with prepared errors,

with wrong electronic and mechanical setting, and misadjusted machine

Use of vector indication to interpret behaviors and find conclusions

Setting on measuring unit to support finding errors.

Rotor assemblies, additional change of unbalance by mounting errors

Distribution of balancing tolerances to tolerance planes and to single rotor parts. Alternatives to G-grades.

Experience effect of changing mounting angle.

Decide how to distribute unbalance correction with discussion of solutions

Calculation and prove of deviations vs. Tolerance.

Specific balancing procedures:

Key compensation
Indexing balancing – principle,
examples of auxiliary parts like adaptors, balancing
shafts …

Specific setting of measuring unit with demonstration, explanation and discussion of examples.

Mounting a rotor part to an auxiliary balancing shaft
Preparation of measuring unit
Carry out the indexing procedure
Doing the graphical solution step by step with recognition of plausibility and allocation of various influences followed by correction of unbalance on the rotor part, check the quality.
Comparison of graphical results with indication on after guided dialog in the measuring unit.

1,5

1270 EUR

23. - 24.
1022504d

13. - 14.
1022511d

26. - 27.
1022526d

102 | Balancing rigid rotors
(Advanced)

102 | Balancing rigid rotors
(Advanced)

Practice and Theory

Target

Advanced knowledge to define suitable balancing procedures
Assess typically employed methods (e.g. indexing balancing)
Recognition of typical errors and according troubleshooting

Motivation

Use of the capabilities of balancing machines more efficiently and generally optimise the balancing process as a whole.
Improved targeted approach to trace errors
Understanding interaction between several rotor parts including fitting errors.

Participants

All having responsibility for balancing.
Operators who are working as professional, competent partners in the company, supervisors, designers, process and production engineers, staff active in development, quality assurance and those who are in contact with customers or suppliers.

Required qualifications
Participation in seminar 101 – Balancing rigid rotors – Basics or good knowledge of balancing technology.

Duration
1.5 days

Possible combination of courses
These courses are often preceded by a basic course (101), so that both courses can be booked together.

Useful hint
Booking the two courses en-bloc will save you EUR 150.-

Topics

Advanced know-how
Knowledge

Practicing
Using the advanced know-how

Tracing errors on a rotor with prepared errors,

with wrong electronic and mechanical setting, and misadjusted machine

Use of vector indication to interpret behaviors and find conclusions

Setting on measuring unit to support finding errors.

Tracing errors on a rotor with prepared errors,

with wrong electronic and mechanical setting, and misadjusted machine

Use of vector indication to interpret behaviors and find conclusions

Setting on measuring unit to support finding errors.

Rotor assemblies, additional change of unbalance by mounting errors

Distribution of balancing tolerances to tolerance planes and to single rotor parts. Alternatives to G-grades.

Experience effect of changing mounting angle.

Decide how to distribute unbalance correction with discussion of solutions

Calculation and prove of deviations vs. Tolerance.

Specific balancing procedures:

Key compensation
Indexing balancing – principle,
examples of auxiliary parts like adaptors, balancing
shafts …

Specific setting of measuring unit with demonstration, explanation and discussion of examples.

Mounting a rotor part to an auxiliary balancing shaft
Preparation of measuring unit
Carry out the indexing procedure
Doing the graphical solution step by step with recognition of plausibility and allocation of various influences followed by correction of unbalance on the rotor part, check the quality.
Comparison of graphical results with indication on after guided dialog in the measuring unit.

1,5

1270 EUR

13. - 14.
1022507e

103 | Balancing flexible rotors
(in German language)

103 | Balancing flexible rotors
(in German language)

Practice and Theory

Target

Mediation of knowledge about balancing flexible rotors.
Assess applied methods and select typically suitable procedures.
Understanding the behavior of the system rotor and machine in general

Motivation

Background knowledge to assess / identify rotor structure and classification.
Acquired skills to derive suitable procedures and their appropriate application
Improved practical proceedings with better assessment of rotor condition

Participants
All who shall apply their know-how and skills for this challenging task:

Balancing staff, machine operators and plant operators with basic knowledge
Process engineers, designers, developers, … who are facing these kind of rotors
Staff who need competence like in rotor dynamics…

Required qualifications
Good knowledge of the concepts of balancing rigid rotors, or attendance at our courses dealing with rigid rotors: 101 – Basic course and 102 Advanced course

Duration
3 day

Topics

Fundamentals
Specific knowledge

Practicing
Application of the know-how

Unbalance distribution and its separation into static unbalance, couple unbalance and modal unbalance

Rotor state (constant, variable)

Bending modes, influence of bearings

Mode shapes and natural frequencies

Experience on a non-rotational rotor: development oft the mode shape, natural frequency, change of bearing stiffness with adjustable test rig.

See the difference of a steep speed increase vs. a creeping low acceleration.

Do your own evaluation, identify mode shapes and discuss it with your trainer.

Structure and characteristics of rotors:

Classification of suitable procedures with examples from turbines, generators, compressors, jet engine rotors, pumps, turbochargers, paper rolls, decanters, electric motors…

Low-speed balancing procedures

Balancing a multistage rotor assembly using low-speed procedures.

Check your success using our training arrangement allowing this high speed runs.

High-speed balancing procedures

Unbalance correction of the various kind of unbalances, orthogonal unbalance set, influence coefficients.

Non isotropic phenomena

Various tolerance criteria

Manuel high-speed balancing of a shaft-flexible rotor. Use graphical determination of influence coefficients using a weight set then balance the rotor.

Computer-aided high-speed balancing of a shaft-flexible rotor with calculated weight sets from the measuring equipment.

Each time including the setting of the measuring equipment using display of ramp-up, measuring and evaluation.

3

2520 EUR

03. - 05.
1032523d

103 | Balancing flexible rotors
(in english language)

103 | Balancing flexible rotors
(in english language)

Practice and Theory

Target

Mediation of knowledge about balancing flexible rotors.
Assess applied methods and select typically suitable procedures.
Understanding the behavior of the system rotor and machine in general

Motivation

Background knowledge to assess / identify rotor structure and classification.
Acquired skills to derive suitable procedures and their appropriate application
Improved practical proceedings with better assessment of rotor condition

Participants
All who shall apply their know-how and skills for this challenging task:

Balancing staff, machine operators and plant operators with basic knowledge
Process engineers, designers, developers, … who are facing these kind of rotors
Staff who need competence like in rotor dynamics…

Required qualifications
Good knowledge of the concepts of balancing rigid rotors, or attendance at our courses dealing with rigid rotors: 101 – Basic course and 102 Advanced course

Duration
3 day

Topics

Fundamentals
Specific knowledge

Practicing
Application of the know-how

Unbalance distribution and its separation into static unbalance, couple unbalance and modal unbalance

Rotor state (constant, variable)

Bending modes, influence of bearings

Mode shapes and natural frequencies

Experience on a non-rotational rotor: development oft the mode shape, natural frequency, change of bearing stiffness with adjustable test rig.

See the difference of a steep speed increase vs. a creeping low acceleration.

Do your own evaluation, identify mode shapes and discuss it with your trainer.

Structure and characteristics of rotors:

Classification of suitable procedures with examples from turbines, generators, compressors, jet engine rotors, pumps, turbochargers, paper rolls, decanters, electric motors…

Low-speed balancing procedures

Balancing a multistage rotor assembly using low-speed procedures.

Check your success using our training arrangement allowing this high speed runs.

High-speed balancing procedures

Unbalance correction of the various kind of unbalances, orthogonal unbalance set, influence coefficients.

Non isotropic phenomena

Various tolerance criteria

Manuel high-speed balancing of a shaft-flexible rotor. Use graphical determination of influence coefficients using a weight set then balance the rotor.

Computer-aided high-speed balancing of a shaft-flexible rotor with calculated weight sets from the measuring equipment.

Each time including the setting of the measuring equipment using display of ramp-up, measuring and evaluation.

3

2520 EUR

17. - 19.
1032508e

105 | ***Quality assessment involume production by means of diagnostic systems
(in German language)

2

106 | Handling vibration throughefficient process design
(in German language)

106 | Handling vibration throughefficient process design
(in German language)

Theory and Case Studies

Target
Gaining information to assess

characteristics of a number of typical rotors, special design features of these rotors.
balancing in production – one-off rotors /small batches / large volumes
determination of tolerances, analyzing drawings regarding machining and fittings
capability in the balancing process, testing process and process capability
planning a balancing procedure, factors contributing to errors, influences resulting from adjacent processes

(crash course)

Motivation

competence in fundamentals, understanding interactions in efficient production and quality assurance of product properties
improve assessment of procedures and possible implementation of innovations

Participants
Staff with process responsibility, typically in middle management, production managers, quality managers, method planners, design engineers, section leaders, work schedulers etc.

Required qualifications