Real Time Monitoring of Long Slender Shaft by Distributed-Lumped Modeling Techniques
The aim of this paper is to determine the stress levels
at the end of a long slender shaft such as a drilling assembly used in
the oil or gas industry using a mathematical model in real-time. The
torsional deflection experienced by this type of drilling shaft (about 4
KM length and 20 cm diameter hollow shaft with a thickness of 1
cm) can only be determined using a distributed modeling technique.
The main objective of this project is to calculate angular velocity and
torque at the end of the shaft by TLM method and also analyzing of
the behavior of the system by transient response. The obtained result
is compared with lumped modeling technique the importance of these
results will be evident only after the mentioned comparison. Two
systems have different transient responses and in this project because
of the length of the shaft transient response is very important.
[1] R.C. Rosenberg and D.C. Karnopp, Introduction to Physical System
Dynamics, McGraw- Hill Book Company, New York, 1983.
[2] A.A. Abdul-Ameer, H. Bartlet and A.S. Wood, "Modelling and
simulation of a vehicle dynamometer using hybrid modelling technique,
in multi-body Dynamincs: Monitoring and Simulation technique,"
Professional Engineering Publishing Limited, London, PP. 327-335,
2000.
[3] M. Navaroo-lopez, D. Cortes. "Sliding-mode control of a multi-DOF
oilwell drilling with stick-slip oscilations". American control
Conference, July, 2007.
[4] S. S. I. Rizvi, H. Bartlett and R. Whalley."Distributed-Lumped
modelling and simulation of ship and propulsion plant dynamic in
application of Multi-Variable." University of Bradford. UK, 1998.
[5] A.A. Abdul-Ameer, Mathematical Modelling and Simulation of
Mechanical Systems, PhD Thesis, Bradford University, Bradford-UK.
2001.
[6] R. Suarez and E. Lopez, "Practical approach to modelling and
controlling stick-slip oscillation in oil well drill string," International
Conference on control application, September 2004, Taipei Taiwan.
[7] R. Whalley, H. Bartlett and M. Ebrahimi, "Analytical solution of
distributed-lumped parameter network models," Proc ImechE., Vol.211,
Part1, pp.203-218, 1997.
[8] S. Devereux, Drilling Technology in Nontechnical Language, Penn well
corporation, Oklahoma, USA.,1999.
[9] R. I. Leine and D. H. Van Campen, "Stick-slip whirl interaction in drill
string dynamics," Department of mechanical engineering, Eindhoven
university of technology, The Netherlands, 2003, Email: [email protected].
[1] R.C. Rosenberg and D.C. Karnopp, Introduction to Physical System
Dynamics, McGraw- Hill Book Company, New York, 1983.
[2] A.A. Abdul-Ameer, H. Bartlet and A.S. Wood, "Modelling and
simulation of a vehicle dynamometer using hybrid modelling technique,
in multi-body Dynamincs: Monitoring and Simulation technique,"
Professional Engineering Publishing Limited, London, PP. 327-335,
2000.
[3] M. Navaroo-lopez, D. Cortes. "Sliding-mode control of a multi-DOF
oilwell drilling with stick-slip oscilations". American control
Conference, July, 2007.
[4] S. S. I. Rizvi, H. Bartlett and R. Whalley."Distributed-Lumped
modelling and simulation of ship and propulsion plant dynamic in
application of Multi-Variable." University of Bradford. UK, 1998.
[5] A.A. Abdul-Ameer, Mathematical Modelling and Simulation of
Mechanical Systems, PhD Thesis, Bradford University, Bradford-UK.
2001.
[6] R. Suarez and E. Lopez, "Practical approach to modelling and
controlling stick-slip oscillation in oil well drill string," International
Conference on control application, September 2004, Taipei Taiwan.
[7] R. Whalley, H. Bartlett and M. Ebrahimi, "Analytical solution of
distributed-lumped parameter network models," Proc ImechE., Vol.211,
Part1, pp.203-218, 1997.
[8] S. Devereux, Drilling Technology in Nontechnical Language, Penn well
corporation, Oklahoma, USA.,1999.
[9] R. I. Leine and D. H. Van Campen, "Stick-slip whirl interaction in drill
string dynamics," Department of mechanical engineering, Eindhoven
university of technology, The Netherlands, 2003, Email: [email protected].
@article{"International Journal of Electrical, Electronic and Communication Sciences:53053", author = "Sina Babadi and K. M. Ebrahimi", title = "Real Time Monitoring of Long Slender Shaft by Distributed-Lumped Modeling Techniques", abstract = "The aim of this paper is to determine the stress levels
at the end of a long slender shaft such as a drilling assembly used in
the oil or gas industry using a mathematical model in real-time. The
torsional deflection experienced by this type of drilling shaft (about 4
KM length and 20 cm diameter hollow shaft with a thickness of 1
cm) can only be determined using a distributed modeling technique.
The main objective of this project is to calculate angular velocity and
torque at the end of the shaft by TLM method and also analyzing of
the behavior of the system by transient response. The obtained result
is compared with lumped modeling technique the importance of these
results will be evident only after the mentioned comparison. Two
systems have different transient responses and in this project because
of the length of the shaft transient response is very important.", keywords = "Distributed Lumped modeling, Lumped modeling,
Drill string, Angular Velocity, Torque.", volume = "6", number = "8", pages = "752-6", }