Highlights of TURBINE-PAK:
- Designed for practical and effective analysis of multi-bearing
rotor systems with up to 50 bearings on elastic foundation (hyperstatic system
analysis)
- Extensive hydrodynamic and hydrostatic
bearing support (including multi-pad, elliptical, fixed pad, rolling pad and pivot
pad journal bearings).
- Optimized real-time Computational Fluid
Dynamics (CFD) calculations for hydrodynamic bearings (no databases) - enabling
almost an infinite number of bearing configurations.
- Comprehensive treatment of machine
alignment, including alignment identification on the basis of bearing
eccentricity measurement. (In multi-bearing systems with non-linear hydrodynamic
bearings vibration response depends on bearing alignment).
- Unknown static load identification algorithms
from bearing eccentricity measurement
- Modelling vibration of a non-straight (pre-bent)
shaft in hydrodynamic bearings
- Modelling vibration of machines with a
vertical shaft in hydrodynamic bearings
- High computational efficiency on Pentium
class computers running Win98. Recalculation of all 8 bearing characteristics,
global equilibrium position and the vibration response for a @600 MW turbine-generator
can take less than a minute.
- Visualization. Solutions can be animated.
- Open style, fully documented ASCII type
input and output files, enabling the user to access, process and/or generate data
>practically without restrictions.
- Mobile computing. TURBINE-PAK can be installed on a portable
computer (laptop) to assist in field diagnostics and field troubleshooting without
any loss of performance.
- Sharing RBF input data files with TURBINE-PAK
NON-LINEAR
- Extensively tested and verified by leading
Turbine Manufacturers, academics and Research Laboratories over the last 10 years.
- Developed and maintained by scientists
(PhD) with over 25 years of research and consulting experience in the field of
rotordynamics and vibration analysis. If you find a feature that is missing, we
can customize TURBINE-PAK to meet your particular requirements.
Rotor-Bearing-Foundation (RBF) System Vibration
response computation
TURBINE-PAK computes the RBF system vibration response as a function
of:
- the system configuration (static load and
alignment)
- bearings (types, geometry, lubricant properties
etc.)
- shaft (geometry, pre-bending, material
properties, temperature distribution etc.)
- foundation and casings dynamic properties
(general FEM superelement model)
- rotor speed
- excitation forces and unbalance
Eigenvalue analysis
TURBINE-PAK can perform the eigenvalue analysis
of the linearized RBF system considering:
- system configuration (alignment, static
load etc.)
- bearings (types, geometry, lubricant properties
etc.)
- shaft (geometry, material properties ,
temperature distribution etc.)
- foundation and casings dynamic properties
(FEM superelement model)
- rotor speed
Modelling changes in machine vibration
due to parameter change
User can modify, among other
parameters, bearing alignment, unbalance, bearing types, geometry or other properties,
rotor speed, foundation properties etc., and observe the resulting changes in
the system vibration response, natural frequencies, mode shapes and the global
system stability. Various cases can be instantly compared.
TURBINE-PAK Animation
TURBINE-PAK fully animated graphical interface greatly enhances
our understanding of machine dynamic characteristics and vibration response. TURBINE-PAK
provides:
- Global motion animation
- Animation of left and right complex eigenvectors
- Animation of the detailed behavior of the
shaft in each bearing, showing foundation, shaft and relative motion, as well
as bearing reactions, linearized stiffness and damping matrices.
- Accurate phase relationships is preserved
in TURBINE-PAK animation.
- Unbalance response and other excitation
response could be animated simultaneously.
- Rapid comparison of various animated systems/cases/conditions
using in most cases single keystrokes.
Fig 1. TURBINE-PAK global motion screen. Steady state system response to unbalance
located between bearings 3 and 4.
TURBINE-PAK applications
- TURBINE-PAK has been found to be one of
the most practical, efficient and effective tools in trouble shooting of vibration
problems in rotating machinery. Using TURBINE-PAK, possible reasons for machine
vibration problems can be established and tested using a computer model of the
machine. Possible solutions and remedies can be tested on the computer model first,
before they are implemented. In many cases this strategy was found not only to
be highly practical and effective, but also more economical. A number of case
histories that demonstrate TURBINE-PAK ability to solve practical problems in
rotating machinery have been published in scientific journals and international
rotordynamic conferences. (See for example T.J.Chalko, D.X.Li, Modelling Turbine
Vibration in Terms of its Load Variation, International Journal of
Rotating Machinery, 1995, Vol 1, No 3-4, pp. 295-299)
- TURBINE-PAK currently serves as a tool
for turbine and rotating machinery designers. Using TURBINE-PAK, various machine
modifications can be evaluated from the point of view of machine vibration before
they are implemented.
- TURBINE-PAK is also a very effective training
tool for vibration engineers. TURBINE-PAK's ability to show in detail the total
animated motion of the machine can demonstrate and explain easily even the most
complex relationships governing the machine vibration.
- TURBINE-PAK can be used as a training tool
for the machine operating personnel. The ability of the machine operating personnel
to understand its vibration contributes directly to better maintenance and
longer service of the unit.
- TURBINE-PAK can be used as an aid in machine
monitoring and maintenance. Every machine operator can greatly benefit from having
a reliable computer model of his particular machine that is capable of predicting
its vibration as a function of the operating parameter change.
- TURBINE-PAK is currently used for experimental
laboratory rigs and rotordynamics research.
DOCUMENTATION
TURBINE-PAK comes with comprehensive documentation that includes
the Theoretical Manual.
TECHNICAL SUPPORT
Technical support is available
to registered users only and is normally limited to the assistance in use of all
available features of TURBINE-PAK and solving problems preventing the user from
using these features.
Access to our support is
available 24 hours a day, most days in the
year via email tjc@sci-e-research.com for the first
12 months after User registration. Customization of the program, as well as support
for longer periods of time can be arranged at additional cost. The benefit of
maintaining the User Support is receiving TURBINE-PAK software upgrades at no
additional cost.
For the first time Users
of TURBINE-PAK, SER will, on the basis of the User data, prepare a complete TURBINE-PAK
data set for one set of rotor-bearing-foundation system. This free modeling service
is designed to provide the User with a complete, ready to use system, immediately
after installation.
If the User data is unavailable
at the time of ordering TURBINE-PAK, SER will deliver TURBINE-PAK with a complete
example set of data, representing some hypothetical rotor-bearing-foundation system.
ON-SITE training
On-site User training is available on request in the following
areas
- theoretical rotordynamics
- vibration analysis
- machine modelling for vibration analysis
- the fastest way from drawings to a computer model
- effective using of TURBINE-PAK
TURBINE-PAK updates
TURBINE-PAK software updates are free of charge during the
first 12 months after TURBINE-PAK registration as well as thereafter, providing
that the User continues to maintain the Technical Support from SER after the initial
12 month period.
Scientific references
- Chalko T.J., Li D.X., Modelling Turbine
Vibration in Terms of its Load Variation, International Journal of
Rotating Machinery, 1995, Vol 1, No 3-4, pp. 295-299
- Chalko T.J., Li D.X., Bearing Alignment
Estimation in Rotating Machinery, Proceedings of 6-th International Symposium
on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-6) Honolulu,
Hawaii, USA, Feb 23-28, 1996
- Li D.X., Chalko T.J., Hydrodynamic Characteristics
of Combination Pad Journal Bearing, Proceedings of 6-th International Symposium
on Transport Phenomena and Dynamics of Rotating Machinery (ISROMAC-6) Honolulu,
Hawaii, USA, Feb 23-28, 1996
- Chalko T.J., Li D.X., Estimation of Alignment
and Transverse Load in Multi-Bearing Rotor Systems International Journal
of Rotating Machinery, 1996, Vol. 1, No. 7-8, pp 593-602
Professional contact
Dr Thomas J. Chalko MSc, PhD
email: tjc@sci-e-research.com
Fax: +61 5681 6361
945 Gunyah Rd, Mt Best,
Vic 3960, Australia
© Scientific Engineering Research
P/L 2000, All rights reserved |
