Prof W. A. Wimalaweera

Senior Professor

retired
NULL
Contact:

Colombo Main Campus, 3rd floor, Science and Technology building, Room No : W5

Office: 112881411, Ext: 411 Mobile: 777514558

Email: wawim@ou.ac.lk wawimal1951@gmail.com


  

Presently employed as the Professor in Textile and Apparel Technology in the Department of Textile and Apparel Technology.

Awarded with the degree of Diplom-Ingenieur (Msc) (Class – Very Good Pass) by the Technical University, Dresden, Germany in 1981.

Awarded with the degree Doktor-Ingenieur (PhD) (Class – Very Good Pass) by the Stuttgart University, Germany in 1988.

Former Head  of the Department of Textile and Apparel Technology, Open University of Sri Lanka, from 2002 -2004

Former Dean, Faculty of Engineering Technology, Open University of Sri Lanka (2010-2012)

Area of Specification:

Woven Fabric Technology

Research Intrests:

Woven Fabrics, Sewing Threads, Seam Puckering, Compression Therapy materials.

Affiliations:

-Visiting Lecturer, University of Moratuwa (2013-2014) -Visiting Lecturer, Brandix College of Clothing Technology (2013- 2014) -Member, Sectoral Committee Textiles of SLSI (2013 – -Member, Executive Committee, Textile Institute, Sri Lanka Section

Programmes Coordination:

Presently on sabbatical leave

Course Coordination:

Presently on sabbatical leave

Awards:

NULL

Researches:

a. In Refereed Journals

  1. Charakterisierung von kontinuierlich verwirbelten Texturgarnen (Features of continuously convoluted textured yarns), textil praxis international, 1982, pp. 1036-1037, (with Artunc, H., Weinsdörfer, H., Wolfrum, J.).
  2. Klammerverhalten verschiedener Kettgarne beim Weben in Abhängigkeit von Haarigkeit und Faserfeinheit (Effect of yarn hairiness and fibre fineness on clinging behaviour of warp yarns during weaving), textil praxis international, 1987, pp. 246-247, (with Weinsdörfer, H.).
  3. Meß-, Prüf- und Auswerteverfahren zur Beurteilung der Kettfadenbeanspruchung beim Weben (Methods of Measurement, Testing and evaluation  in the estimation of stresses acting on warp yarns during weaving), Melliand Textilberichte, 1987, pp. 327-332, (with Weinsdörfer, H.).
  4. Untersuchung des Abriebs und der Aufrauhung der Kettgarne beim Weben (Investigations on abrasion and roughening of warp yarns during weaving), textil praxis international, 1987,  pp.611-617, (with Weinsdörfer, H.)
  5. Einfluß des Webgeschirrs auf den Webvorgang und die Garnbeanspruchung (Influence of the weaving harness on the weaving process and yarn stresses), Part I , Melliand Textilberichte, 1987, pp. 721-727, (with Weinsdörfer, H.).
  6. Einfluß des Webgeschirrs auf den Webvorgang und die Garnbeanspruchung (Influence of the weaving harness on the weaving process and yarn stresses), Part II , Melliand Textilberichte,pp.816-821, (with Weinsdörfer, H.).
  7. Kettfadenverfilzungen und -verdrehungen von Fasergarnen beim Weben (Warp thread clinging and snarling in spun yarns during weaving), Melliand Textilberichte, 1988, pp.412-417, (with Weinsdörfer, H.).
  8. A study of the buyer behaviour in the selection of weaving machines for silk and denim, Journal of the Federation of Asian Professional Textile Associations (FAPTA), Vol. 3, No. 2,1996, pp. 50-59, (with Chan, Dagan C. K. and  Chan K.).
  9. A model for weaving machine buyer behaviour in Hong Kong and China’s interior area, Journal of China Textile University (Eng. Ed.), Vol. 13 supp., 1996, pp. 61-71, (with Chan, Dagan C. K. and Chan, K.).
  10. A study of start-up marks of woven fabrics, Journal of Hong Kong Institution of Textile and Apparel, 1997,  Volume 1, No.1, pp. 71-83, (with Tang, Y. L.).

b. Monographs

  1. Einfluß der Fachbildungs- und Kettfadenüberwachungselemente einer Hochleistungswebmachine auf die Kettfaden-beanspruchung (Influence of shed forming devices and warp stop motion of a high performance weaving machine on warp yarn stresses), Doctoral Thesis published in March 1988, Stuttgart University, Stuttgart, Germany.

 c. Conference Papers

  1. Influence of yarn properties on clear shedding, Paper presented at the seminar "Yarn Formation – Theory and Practice", 14 March 1991, Moratuwa, Sri Lanka.
  2. State of the art of weaving technology, Paper presented at ITMA’91-Review, 23 January 1992,  Moratuwa, Sri Lanka.
  3. Dimensionless analysis of uni-axial tensile deformation of filament woven fabrics, paper presented at 78th World Conference of the Textile Institute, 23-25 May 1997, Thessaloniki, Greece, (with Chan K. F. and Dhingra R. C.).
  4. Shear properties of fusible interlinings and silk-interlining composites, paper presented at the 4th Asian Textile Conference, 24-26 June 1997, Taipe, Taiwan, (with Chan K.F. and Lo T. Y.).
  5. Eigenshaften der Primaergrundgewebe fuer handgemachte Nadelflorteppiche (Properties of backing for hand tufted carpets), 4th  Dresdener Textiltagung, 25th and 26th June 1998, Dresden, Germany.
  6. Development of a theoretical model to estimate the fabric wastage in panel inspection, Annual Academic Sessions of the OUSL, 08th December 2004,  Nawala, Nugegoda, Sri lanka. (With D. W. Kulatunga and S. A. Ariadurai)
  7. Distance Education: Panacea for the Training Needs of the Sri Lankan Apparel Industry, Proceedings of the National Conference on Open and Distance Learning, pp 6 – 13, October 2005, (with Ariadurai SA and Kuruppu RU).
  8. The effect of delivery methods on the performance of students of the Diploma in Industrial Studies Programme, Annual Sessions of the Open University, Colombo, 24-25 November 2005. (with Ariadurai SA and Alwis TPGNT.
  9. Effect Of New Trade Agreements of EU and USA On The   Sri Lankan Garment Textile Industry”, Textile Institute World Conference, Colombo, March 2007,  (with  A.A.D.H. Gunasekare).
  10. Importance of Strength and Elastic properties of Sewing Threads and Sewing Efficiency, Seminar on Sewing Threads organized by the Textile Institute, Sri Lanka Section, December 2009, Colombo.
  11. Role of Engineers in the Creation of a Just and Sustainable Future, Paper presented at the Annual Technical Sessions of the IIESL, 29th July 2011, Colombo.
Ongoing Research:
  • Development of an easily wearable compression stocking with separate devices for the management of lower limb venous disorders to optimize the blood circulation
  • Influence of Elastic Properties of Sewing Threads on Puckering of Seams
Research Supervisions:

 

  • MPhil Project of Mr. K. F. Chan on "Shear properties of fusible interlinings and silk-interlining composites", Hong Kong Polytechnic University, 1996 -1998 (Co-supervisor Dr. T.Y.  Lo).
  • MPhil.  Project of  Mr. D. W. Kulatunga on "Development of a theoretical model to estimate the fabric wastage in panel inspection", OUSL, 2002-2004, (Co-supervisor Dr. S. A. Ariadurai)
Publications:

a. In Popular Journals (Local)

  1. Influence of yarn properties on clear shedding, Textile Bulletin, July/Sept. 1992,  Ratmalana, Sri Lanka.
  2. Air jet weft insertion, Textile Bulletin, January/March 1995, pp. 8-14, Ratmalana Sri Lanka.
  3. Theoretical and experimental analysis of air-jet weft propulsion: A literature survey, Textile Bulletin, January/June 1996, pp. 2-6, Ratmalana, Sri Lanka.
  4. Quick style changing, Textile Bulletin, July/December, 1996, pp. 2-6, Ratmalana, Sri Lanka.
  5. Influence of structural parameters on air permeability and thermal transmission properties of cotton woven fabrics, Textile and Clothing, March 1999, Ratmalana, Sri Lanka.  (with Hung, Pualine S. Y.).
  6. Woven Technical Textiles, Textile and Clothing, July-Sept. 1999, Ratmalana, Sri Lanka.

b. In Popular Journals (International)

  1.  The diversity to be found in the narrow weave, A.T.A Journal, June/July 1997, pp.71-73.
  2.  Low-stress behaviour  of Weaves, Textile Asia, September 1997, pp. 85-91, (with Chan, K. F. and Dhingra, R. C.).
  3. Multi-phase weaving is the future of weaving, China Textile and Apparel, October/November, 1997, pp. 41-43.
  4. Different criteria for choosing weaving machines, China Textile and Apparel , February/March 1998, pp. 27-30.
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