- Email: [email protected]
Report highlights automotive window and exterior sealing systems
NEWS any of these thermal methods, but it also will be of interest to undergraduates and those who are just starting to use these techniques. Contact: Smithers Rapra Publishing, Shawbury, Shrewsbury, Shropshire SY4 4NR, UK. Tel: +44 1939 252313, Email: [email protected], Web: www.polymer-books.com, Web: http://info.smithersrapra.com/publishing
Contacts: TechNavio, 8 Wimpole Street, London W1G 9SP, UK. Tel: +44 207 637 2456, Fax: +44 845 280 2825, Email: [email protected], Web: www.technavio.com TechNavio (North America Sales & Marketing), 110 E. Schiller, 208, Elmhurst, IL 60126, USA. Tel: +1 630 530 7340, Fax: +1 630 833 2171, Email: [email protected]
Report highlights Growth of 4.40% automotive window forecast for global seal and exterior and gasket market sealing systems he global seal and gasket market
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is set to grow at a compounded annual growth rate (CAGR) of 4.40% over the period 2011–2015, according to a report published by TechNavio. One of the key factors contributing to this market growth is the need to enhance the performance of engineering equipment, says the company. The global market has also been witnessing the increasing adoption of on-board condition monitoring, with advanced support systems. However, the increasing price of raw materials could pose a challenge to the growth of this market place. TechNavio’s report, entitled ‘Global Seal and Gasket Market 2011–2015’, is based on a detailed market analysis with inputs from industry experts. The report covers the Americas, and the Europe, the Middle East and Africa (EMEA) and Asia–Pacific (APAC) regions. It covers the global seal and gasket market landscape and its growth prospects in the coming years, and also includes a discussion of the key vendors operating in this sector. The key companies dominating this market space are Dana Corp, Flowserve Corp, Svenska Kullagerfabriken Ab and Timken Co, reveals the study. Other vendors mentioned include Federal Mogul Corp, Henniges Automotive Sealing Systems, ElringKlinger Ag, Blue Diamond Technologies Ltd, Hutchinson Sa, Parker Hannifin Corp, SIEM Supranite Sa and John Crane Ltd. Key questions answered in this report include: UÊ 7 >ÌÊÜÊÌ iÊ>ÀiÌÊÃâiÊLiÊÊÓä£xÊ>`Ê what will the growth rate be? UÊ 7 >ÌÊ>ÀiÊÌ iÊiÞÊ>ÀiÌÊÌÀi`ö UÊ 7 >ÌÊÃÊ`ÀÛ}ÊÌ ÃÊ>Ài̶ UÊ 7 >ÌÊ>ÀiÊÌ iÊV >i}iÃÊÌÊ>ÀiÌÊ}ÀÜÌ ¶ UÊ 7 Ê>ÀiÊÌ iÊiÞÊÛi`ÀÃÊÊÌ ÃÊ>ÀiÌÊë>Vi¶ UÊ 7 >ÌÊ>ÀiÊÌ iÊ>ÀiÌÊ««ÀÌÕÌiÃÊ>`Ê threats faced by the key vendors? UÊ 7 >ÌÊ>ÀiÊÌ iÊÃÌÀi}Ì ÃÊ>`ÊÜi>iÃÃiÃÊvÊ the key vendors? 8
Sealing Technology
R
esearch and Markets Ltd of Dublin, Ireland, has added the publication entitled ‘Automotive Window and Exterior Sealing Systems’ to the range of products that it offers. The automotive market is likely to undergo a major paradigm shift over the next few years as fuel economy takes a renewed urgency for conventional and alternative power-trains from 2017–2025, says the study, conducted by US-based ITB Group Ltd. This change will require many modifications to the design, material selection and operation of current vehicles. Windows and sealing systems are no exception, especially with respect to mass reduction, insulation against high and low ambient temperatures and acoustic performance. The market has witnessed a number of changes in the supply base over the last three years, says the report. These began prior to the economic crisis of 2008/2009 and accelerated in 2011. These highlighted developments include ownership changes, especially among roof system and weather-strip suppliers, as Chinese and Indian investors acquire distressed European operations.
Contact: Research and Markets Ltd, Guinness Centre, Taylors Lane, Dublin 8, Ireland. Fax: +353 1 481 1716, Web: www.researchandmarkets.com The ITB Group Ltd, 39555 Orchard Hill Place, Suite 225, Novi, MI 48375, USA. Tel: +1 248 380 6310, Web: www.itbgroup.com
Recently Published Papers UÊ 9°Ê< Õ]Ê°Ê< Õ]Ê7°Ê/>}Ê>`Ê7°Ê< >}]Ê College of Mechanical and Electrical Engineering, China University of Mining
& Technology, Xuzhou, Jiangsu; and C. Ma, College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing, Jiangsu – China: Development of the theoretical model for the optimal design of surface texturing on cylinder liner, Tribology International, Volume 52, August 2012, pages 1–6. Based on the Reynolds equation and the dynamic operation conditions of the cylinder liner and piston ring of a CY6102type diesel engine, this study develops a theoretical model of the load-carrying capacity and film thickness for the first compressed ring. Using the theoretical model, the effects of the texturing parameters on the load-carrying capacity and film thickness were investigated under different velocities, and the range of optimum texturing parameters was established. An optimal texturing design method for the cylinder liner was also proposed. It shows that texturing with variable parameters in different velocity ranges can produce a higher load-carrying capacity and film thickness, compared with invariable parameters. UÊ °Ê/ >ÌÌiÊ>`Ê,°°Ê->>Ì]ÊiÀ}>ÊÃÌÌÕÌiÊ of Technology, Atlanta, Georgia, USA: Effects of multi-scale viscoelasticity of polymers on high-pressure, high-frequency sealing dynamics, Tribology International, Volume 52, August 2012, pages 75–86. In this study, viscoelastic effects on the performance of a hydraulic rod seal are examined using a visco-elastohydrodynamic model. The model consists of coupled macroscale and micro-scale deformation and contact mechanics analyses and micro-scale fluid mechanics analysis. Dynamic mechanical analysis and a constrained optimisation method are used to extract the spectrum of relaxation time scales and corresponding instantaneous elastic moduli associated with the seal polymer, required by the model. Simulation results show that seal performance, including leakage prevention and friction force, depends on the relationship between the characteristic time constants of the polymer’s molecular chains and the seal cycle frequency. UÊ °-°Ê9>}]Ê i«>ÀÌiÌÊvÊ iÀ}ÞÊ>`Ê Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei; C.-Y. Wen, Department of Aeronautics and Astronautics, National Cheng-Kung University, Tainan; and C.-S. Tseng and M.-C. Weng, NAK Sealing Technologies Corp, Nantou – Taiwan: Parametric study of helix configuration in ribbed lip seal, Tribology International, Volume 53, September 2012, pages 98–107. In this study, the effects of the principal geometric parameters of a helix ribbed lip seal on pumping performance are systematically investigated through simulation that combines finite element analysis and computational fluid dynamics.
March 2013
Contacts: TechNavio, 8 Wimpole Street, London W1G 9SP, UK. Tel: +44 207 637 2456, Fax: +44 845 280 2825, Email: [email protected], Web: www.technavio.com TechNavio (North America Sales & Marketing), 110 E. Schiller, 208, Elmhurst, IL 60126, USA. Tel: +1 630 530 7340, Fax: +1 630 833 2171, Email: [email protected]
Report highlights Growth of 4.40% automotive window forecast for global seal and exterior and gasket market sealing systems he global seal and gasket market
T
is set to grow at a compounded annual growth rate (CAGR) of 4.40% over the period 2011–2015, according to a report published by TechNavio. One of the key factors contributing to this market growth is the need to enhance the performance of engineering equipment, says the company. The global market has also been witnessing the increasing adoption of on-board condition monitoring, with advanced support systems. However, the increasing price of raw materials could pose a challenge to the growth of this market place. TechNavio’s report, entitled ‘Global Seal and Gasket Market 2011–2015’, is based on a detailed market analysis with inputs from industry experts. The report covers the Americas, and the Europe, the Middle East and Africa (EMEA) and Asia–Pacific (APAC) regions. It covers the global seal and gasket market landscape and its growth prospects in the coming years, and also includes a discussion of the key vendors operating in this sector. The key companies dominating this market space are Dana Corp, Flowserve Corp, Svenska Kullagerfabriken Ab and Timken Co, reveals the study. Other vendors mentioned include Federal Mogul Corp, Henniges Automotive Sealing Systems, ElringKlinger Ag, Blue Diamond Technologies Ltd, Hutchinson Sa, Parker Hannifin Corp, SIEM Supranite Sa and John Crane Ltd. Key questions answered in this report include: UÊ 7 >ÌÊÜÊÌ iÊ>ÀiÌÊÃâiÊLiÊÊÓä£xÊ>`Ê what will the growth rate be? UÊ 7 >ÌÊ>ÀiÊÌ iÊiÞÊ>ÀiÌÊÌÀi`ö UÊ 7 >ÌÊÃÊ`ÀÛ}ÊÌ ÃÊ>Ài̶ UÊ 7 >ÌÊ>ÀiÊÌ iÊV >i}iÃÊÌÊ>ÀiÌÊ}ÀÜÌ ¶ UÊ 7 Ê>ÀiÊÌ iÊiÞÊÛi`ÀÃÊÊÌ ÃÊ>ÀiÌÊë>Vi¶ UÊ 7 >ÌÊ>ÀiÊÌ iÊ>ÀiÌÊ««ÀÌÕÌiÃÊ>`Ê threats faced by the key vendors? UÊ 7 >ÌÊ>ÀiÊÌ iÊÃÌÀi}Ì ÃÊ>`ÊÜi>iÃÃiÃÊvÊ the key vendors? 8
Sealing Technology
R
esearch and Markets Ltd of Dublin, Ireland, has added the publication entitled ‘Automotive Window and Exterior Sealing Systems’ to the range of products that it offers. The automotive market is likely to undergo a major paradigm shift over the next few years as fuel economy takes a renewed urgency for conventional and alternative power-trains from 2017–2025, says the study, conducted by US-based ITB Group Ltd. This change will require many modifications to the design, material selection and operation of current vehicles. Windows and sealing systems are no exception, especially with respect to mass reduction, insulation against high and low ambient temperatures and acoustic performance. The market has witnessed a number of changes in the supply base over the last three years, says the report. These began prior to the economic crisis of 2008/2009 and accelerated in 2011. These highlighted developments include ownership changes, especially among roof system and weather-strip suppliers, as Chinese and Indian investors acquire distressed European operations.
Contact: Research and Markets Ltd, Guinness Centre, Taylors Lane, Dublin 8, Ireland. Fax: +353 1 481 1716, Web: www.researchandmarkets.com The ITB Group Ltd, 39555 Orchard Hill Place, Suite 225, Novi, MI 48375, USA. Tel: +1 248 380 6310, Web: www.itbgroup.com
Recently Published Papers UÊ 9°Ê< Õ]Ê°Ê< Õ]Ê7°Ê/>}Ê>`Ê7°Ê< >}]Ê College of Mechanical and Electrical Engineering, China University of Mining
& Technology, Xuzhou, Jiangsu; and C. Ma, College of Mechanical and Electrical Engineering, Nanjing Forestry University, Nanjing, Jiangsu – China: Development of the theoretical model for the optimal design of surface texturing on cylinder liner, Tribology International, Volume 52, August 2012, pages 1–6. Based on the Reynolds equation and the dynamic operation conditions of the cylinder liner and piston ring of a CY6102type diesel engine, this study develops a theoretical model of the load-carrying capacity and film thickness for the first compressed ring. Using the theoretical model, the effects of the texturing parameters on the load-carrying capacity and film thickness were investigated under different velocities, and the range of optimum texturing parameters was established. An optimal texturing design method for the cylinder liner was also proposed. It shows that texturing with variable parameters in different velocity ranges can produce a higher load-carrying capacity and film thickness, compared with invariable parameters. UÊ °Ê/ >ÌÌiÊ>`Ê,°°Ê->>Ì]ÊiÀ}>ÊÃÌÌÕÌiÊ of Technology, Atlanta, Georgia, USA: Effects of multi-scale viscoelasticity of polymers on high-pressure, high-frequency sealing dynamics, Tribology International, Volume 52, August 2012, pages 75–86. In this study, viscoelastic effects on the performance of a hydraulic rod seal are examined using a visco-elastohydrodynamic model. The model consists of coupled macroscale and micro-scale deformation and contact mechanics analyses and micro-scale fluid mechanics analysis. Dynamic mechanical analysis and a constrained optimisation method are used to extract the spectrum of relaxation time scales and corresponding instantaneous elastic moduli associated with the seal polymer, required by the model. Simulation results show that seal performance, including leakage prevention and friction force, depends on the relationship between the characteristic time constants of the polymer’s molecular chains and the seal cycle frequency. UÊ °-°Ê9>}]Ê i«>ÀÌiÌÊvÊ iÀ}ÞÊ>`Ê Refrigerating Air-Conditioning Engineering, National Taipei University of Technology, Taipei; C.-Y. Wen, Department of Aeronautics and Astronautics, National Cheng-Kung University, Tainan; and C.-S. Tseng and M.-C. Weng, NAK Sealing Technologies Corp, Nantou – Taiwan: Parametric study of helix configuration in ribbed lip seal, Tribology International, Volume 53, September 2012, pages 98–107. In this study, the effects of the principal geometric parameters of a helix ribbed lip seal on pumping performance are systematically investigated through simulation that combines finite element analysis and computational fluid dynamics.
March 2013