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Proceedings Papers

Comparison Between Different Calculation Methods for Determining Bolting-Up Torque Moments

Alexander Mutz, Manfred Schaaf, Stefan Hufnagel
Proc. ASME. PVP2022, Volume 2: Computer Technology and Bolted Joints; Design and Analysis, V002T02A019, July 17–22, 2022
Publisher: American Society of Mechanical Engineers
Paper No: PVP2022-86163
https://doi.org/10.1115/PVP2022-86163
View Paper titled, Comparison Between Different Calculation Methods for Determining Bolting-Up Torque Moments
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Topics: Computational methods, Finite element analysis, Stress analysis (Engineering), Torque, Flanges, Gaskets, ASME Boiler and Pressure Vessel Code, Acceptance criteria, ASME Standards, Design
Proceedings Papers

The Use of Different Media in Leakage Tests

Manfred Schaaf, Frank Herkert, Adam Arnett
Proc. ASME. PVP2019, Volume 2: Computer Technology and Bolted Joints, V002T02A022, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93531
https://doi.org/10.1115/PVP2019-93531
View Paper titled, The Use of Different Media in Leakage Tests
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Topics: Helium, Leakage, Mass spectrometers, Methane, Nitrogen, Testing performance
Proceedings Papers

Evaluation of Flange Calculations Using Strain-Based Acceptance Criteria

Alexander Mutz, Manfred Schaaf
Proc. ASME. PVP2019, Volume 2: Computer Technology and Bolted Joints, V002T02A015, July 14–19, 2019
Publisher: American Society of Mechanical Engineers
Paper No: PVP2019-93521
https://doi.org/10.1115/PVP2019-93521
View Paper titled, Evaluation of Flange Calculations Using Strain-Based Acceptance Criteria
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Topics: Acceptance criteria, Flanges, Stress analysis (Engineering)
Proceedings Papers

Friction Factor Between Gasket and Flange Surface

Manfred Schaaf, Rainer Zeuss
Proc. ASME. PVP2018, Volume 2: Computer Technology and Bolted Joints, V002T02A016, July 15–20, 2018
Publisher: American Society of Mechanical Engineers
Paper No: PVP2018-85104
https://doi.org/10.1115/PVP2018-85104
View Paper titled, Friction Factor Between Gasket and Flange Surface
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Topics: Flanges, Friction, Gaskets, Shear (Mechanics), Stress, Displacement, Flange connections, Piping systems, Sealing (Process)
Proceedings Papers

Determination of the Gasket Stress Distribution

Manfred Schaaf
Proc. ASME. PVP2017, Volume 2: Computer Technology and Bolted Joints, V002T02A007, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-66229
https://doi.org/10.1115/PVP2017-66229
View Paper titled, Determination of the Gasket Stress Distribution
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Topics: Gaskets, Stress concentration, Finite element analysis, Flanges, Stress analysis (Engineering), Algorithms, Manufacturing, Mechanical behavior, Rotation
Proceedings Papers

Comparison Between Different Calculation Methods for Determining Bolting Up Moments

Alexander Mutz, Manfred Schaaf
Proc. ASME. PVP2016, Volume 2: Computer Technology and Bolted Joints, V002T02A004, July 17–21, 2016
Publisher: American Society of Mechanical Engineers
Paper No: PVP2016-63096
https://doi.org/10.1115/PVP2016-63096
View Paper titled, Comparison Between Different Calculation Methods for Determining Bolting Up Moments
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Topics: Algorithms, ASME Boiler and Pressure Vessel Code, ASME Standards, Computational methods, Dimensions, Finite element analysis, Flange connections, Flanges, Gaskets, Leakage
Proceedings Papers

Creep Relaxation Characteristics in European Standards

Manfred Schaaf
Proc. ASME. PVP2015, Volume 2: Computer Technology and Bolted Joints, V002T02A014, July 19–23, 2015
Publisher: American Society of Mechanical Engineers
Paper No: PVP2015-45952
https://doi.org/10.1115/PVP2015-45952
View Paper titled, Creep Relaxation Characteristics in European Standards
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Topics: Aeroelasticity, Gaskets, Testing, Algorithms, Deflection, Stress
Proceedings Papers

Improved Gasket Testing

Manfred Schaaf
Proc. ASME. PVP2013, Volume 2: Computer Technology and Bolted Joints, V002T02A022, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97941
https://doi.org/10.1115/PVP2013-97941
View Paper titled, Improved Gasket Testing
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Topics: Gaskets, Testing, Compression, Creep, Deflection, Flanges, Stiffness
Proceedings Papers

Proposed Modifications to the EN 1591-1 Flange Calculation Procedure

Manfred Schaaf
Proc. ASME. PVP2013, Volume 2: Computer Technology and Bolted Joints, V002T02A018, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97938
https://doi.org/10.1115/PVP2013-97938
View Paper titled, Proposed Modifications to the EN 1591-1 Flange Calculation Procedure
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Topics: Flanges, Gaskets, Testing, Compression, Creep, Deflection, Stiffness
Proceedings Papers

Measurement of Fugitive Emissions of Industrial Valves

Manfred Schaaf, Friedrich Schoeckle
Proc. ASME. PVP2011, Volume 2: Computer Technology and Bolted Joints, 235-241, July 17–21, 2011
Publisher: American Society of Mechanical Engineers
Paper No: PVP2011-57936
https://doi.org/10.1115/PVP2011-57936
View Paper titled, Measurement of Fugitive Emissions of Industrial Valves
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Topics: Emissions, Valves, Packing (Shipments), Packings (Cushioning), Testing, Air pollution control, American Petroleum Institute, Cycles, Friction, Helium
Proceedings Papers

New German Guideline on Reduction of Emissions and Its Impact on the Industry

Manfred Schaaf, Friedrich Schoeckle
Proc. ASME. PVP2010, ASME 2010 Pressure Vessels and Piping Conference: Volume 2, 299-305, July 18–22, 2010
Publisher: American Society of Mechanical Engineers
Paper No: PVP2010-26041
https://doi.org/10.1115/PVP2010-26041
View Paper titled, New German Guideline on Reduction of Emissions and Its Impact on the Industry
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Topics: Emissions, Bolted flanges, Manufacturing, Air pollution control, Design, Flange connections, Mineral oil, Pollution control, Quality management, Regulations
Proceedings Papers

Technical Approach for the Reduction of Fugitive Emissions

Manfred Schaaf, Friedrich Schoeckle
Proc. ASME. PVP2009, Volume 2: Computer Applications/Technology and Bolted Joints, 251-257, July 26–30, 2009
Publisher: American Society of Mechanical Engineers
Paper No: PVP2009-78125
https://doi.org/10.1115/PVP2009-78125
View Paper titled, Technical Approach for the Reduction of Fugitive Emissions
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Topics: Emissions, Packing (Shipments), Packings (Cushioning), Sealants, Stress, Air pollution control, Deformation, Pollution control, Torque wrenches, Valves
Proceedings Papers

Concept for the Guarantee of the Integrity of Bolted Flanged Connections in a German Nuclear Power Plant

Manfred Schaaf, Friedrich Schoeckle, Jaroslav Bartonicek
Proc. ASME. PVP2008, Volume 2: Computer Applications/Technology and Bolted Joints, 81-88, July 27–31, 2008
Publisher: American Society of Mechanical Engineers
Paper No: PVP2008-61530
https://doi.org/10.1115/PVP2008-61530
View Paper titled, Concept for the Guarantee of the Integrity of Bolted Flanged Connections in a German Nuclear Power Plant
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Topics: Flange connections, Nuclear power stations, Databases, Flanges, Gaskets, Design, Geometry, Manufacturing, Bolted flanges, Lubricants
Proceedings Papers

On the Effect of Temperature on Tightening Characteristics of Gaskets

Jaroslav Bartonicek, Manfred Schaaf, Friedrich Schoeckle
Proc. ASME. PVP2002, Analysis of Bolted Joints, 35-43, August 5–9, 2002
Publisher: American Society of Mechanical Engineers
Paper No: PVP2002-1080
https://doi.org/10.1115/PVP2002-1080
View Paper titled, On the Effect of Temperature on Tightening Characteristics of Gaskets
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Topics: Gaskets, Temperature, Leakage, Deformation, Servomechanisms, Fibers, Graphite, Heating, Ovens, Sheet materials
Proceedings Papers

“Harmonized” Gasket Testing

Manfred Schaaf, Friedrich Schoeckle, Jaroslav Bartonicek
Proc. ASME. PVP2004, Analysis of Bolted Joints, 189-197, July 25–29, 2004
Publisher: American Society of Mechanical Engineers
Paper No: PVP2004-2639
https://doi.org/10.1115/PVP2004-2639
View Paper titled, “Harmonized” Gasket Testing
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Topics: Gaskets, Testing, ASTM International, Bolted joints, Industrial research, Leakage, Reliability
Proceedings Papers

Tightness Characteristics of Packings

Manfred Schaaf, Thomas Klenk, Ralf Vogel, Jaroslav Bartonicek
Proc. ASME. PVP2005, Volume 2: Computer Technology, 147-154, July 17–21, 2005
Publisher: American Society of Mechanical Engineers
Paper No: PVP2005-71471
https://doi.org/10.1115/PVP2005-71471
View Paper titled, Tightness Characteristics of Packings
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Topics: Packings (Cushioning), Friction, Gaskets, Chain, Chemical industry, Deformation, Design, Emissions, Extruding, Leakage
Proceedings Papers

On the Effect of Scattering of Bolt Forces on Gasket Stress

Manfred Schaaf, Friedrich Schoeckle, Jaroslav Bartonicek
Proc. ASME. PVP2006-ICPVT-11, Volume 2: Computer Technology, 263-271, July 23–27, 2006
Publisher: American Society of Mechanical Engineers
Paper No: PVP2006-ICPVT-11-93590
https://doi.org/10.1115/PVP2006-ICPVT-11-93590
View Paper titled, On the Effect of Scattering of Bolt Forces on Gasket Stress
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Topics: Electromagnetic scattering, Gaskets, Stress, Flanges, Finite element analysis, Finite element methods, Finite element model, Flange connections, Rotation, Stress concentration