•  Full Papers  •  Abstracts   •

Full Papers

• A. T. Male, Y. W. Chen, C. Pan, P. J. Li, and Y. M. Zhang, "Influence of material physical properties in plasma-jet forming of sheet metals," Proceedings of the 9th International Sheet Metal Conference, Katholieke Universiteit, Leuven, Belgium, April 2-3, 2001, pp. 185-190.
  
• Y. M. Zhang, S. B. Zhang, M. Jiang, and B. Losch, 2001. "Sensing and control of double-sided arc welding process," Proceedings of the 2001 NSF Design, Service and Manufacturing Grantees and Research Conference, January 7-10, Tampa, FL.
  
• Z. H. Han, B. L. Walcott, and Y. M. Zhang, "Controller design of fuzzy dynamic systems based on a piecewise quadratic Lyapunov function," 2001 IASTED International Conference on Control and Applications, June 27-29, 2001, Banff, Canada.
  
• Z.X. Han, G. Feng, B.L. Walcott and Y.M. Zhang, " H-infinity Controller Design of Fuzzy Dynamic Systems with Pole Placement Constraints ", Proceedings of the American Control Conference, pp1939-1943, June 2000, Chicago, Illinois.
  
• S. B. Zhang and Y. M. Zhang, "Keyhole stability and sensing in plasma arc welding process," 7th Mechatronics Forum International Conference, Sept. 6-8, 2000, Atlanta, GA.
  
• P. J. Li and Y. M. Zhang, "Precision control of metal transfer," 7th Mechatronics Forum International Conference, Sept. 6-8, 2000, Atlanta, GA.
  
• Y. M. Zhang and S. B. Zhang, "Affordable versatile sensor for adaptive welding process control," 7th Mechatronics Forum International Conference, Sept. 6-8, 2000, Atlanta, GA.
  
• P. J. Li and Y. M. Zhang, "Modeling of welding arc light radiation," Transactions of NAMRC/SME, May 24-26, 2000, Lexington, KY.
  
• A.T.Male, Y.W.Chen, P.J.Li, and Y.M.Zhang, "Modeling and control of plasma-jet forming process," Transactions of NAMRC/SME, May 24-26, 2000, Lexington, KY.
  
• A.T.Male, C. Pam, Y.W.Chen, and Y.M.Zhang, "Processing Effects in Plasma Forming of Sheet Metal". CIRP Annals, Vol. 49, pp. 213-216, 2000.
  
• Z. H. Han, B. L. Walcott, and Y. M. Zhang, "Pole placement controller design of fuzzy dynamic systems using output feedback," IASTED International Conference on Control and Applications, 25-30 July, 1999, Banff, Canada.
  
• Z. H. Han, B. L. Walcott, G. Feng, and Y. M. Zhang, "Dynamic output feedback H infinity controller design for fuzzy dynamic systems," the 14th IEEE International Symposium on Intelligent Control, 15-17 September, 1999, Cambridge, MA.
  
• Y. M. Zhang and L. Li, "Intelligent control of arc welding process," Proceedings of the 14th World Congress of the International Federation of Automatic Control (IFAC), Vol. A, pp. 37-42, July 5-9, 1999, Beijing, China.
  
• P. J. Li, Y. W. Chen, A. T. Male, and Y. M. Zhang, "Flexible forming of sheet metal using plasma arc," 1999 ASME International Mechanical Engineering Congress, 15-19 November, 1999, Nashville, TN.
  
• S. B. Zhang and Y. M. Zhang, "Determining keyhole stability for arc welding process control," 1999 ASME International Mechanical Engineering Congress, 15-19 November, 1999, Nashville, TN.
  
• P. J. Li and y. M. Zhang, "Precision sensing of arc length in GTAW based on arc light spectrum," 1999 ASME International Mechanical Engineering Congress, 15-19 November, 1999, Nashville, TN.
• Y. M. Zhang and Li, "Controlling joint penetration base don weld pool geometry," Proceedings of the 5th International Conference on Trends in Welding Research, pp. 1119-1124, June 1-5, 1998, Pine Mountain, GA.
  
• Y. M. Zhang and S. B. Zhang, "Double-sided GTA welding of aluminum alloys with single power supply," Proceedings of the 5th International Conference on Trends in Welding Research, pp. 1119-1124, June 1-5, 1998, Pine Mountain, GA.
  
• Y. M. Zhang, Liguo E, and Bruce L. Walcott, "Interval model based control of gas metal arc welding," The 1998 American Control Conference, June 24-26, 1998, Philadelphia, PA.
  
• Y. M. Zhang, L. Li, and R. Kovacevic, "Nuerofuzzy model based control of weld fusion zone geometry", Proceedings of the 1997 American Control Conference, pp. 2483-2487, Albuquerque, New Mexico, June 4-6, 1997.
  
• Y. M. Zhang, R. Kovacevic, and Y. X. Yao, "Identification of multivariable interval dynamicmodel from measurements in frequency domain," Proceedings of the 1997 American Control Conference, pp. 1939-1943, Albuquerque, New Mexico, June 4-6, 1997.
  
• Y. X. Yao, Y. M. Zhang, and R. Kovacevic, "Loop transfer recovery design with proportional integral observer based on H-infinity optimal observation," Proceedings of the 1997 American Control Conference, pp. 786-790, Albuquerque, New Mexico, June 4-6, 1997.
  
• Y. M. Zhang, Liguo E., and R. Kovacevic, "Droplet transfer control for gas metal arc welding," North American Manufacturing Research Conference, Vol. XXV, May 20-23, 1997, Lincoln, Nebraska.
  
• Y. M. Zhang and R. Kovacevic, "Robust stabilizing control of stable interval plants: a time domain approach" Proceedings of the ASME Dynamic Systems and Control Division, DSC-Vol. 58: 867-875, 1996 ASME International Mechanical Engineering Congress, 17-22 November, 1996, Atlanta, Georgia.
  
• Y. M. Zhang, Y. X. Yao, L. Li, R. Kovacevic, " based robust multivariable linear control of weld pool shape" Proceedings of the ASME Dynamic Systems and Control Division, DSC-Vol. 58: 259-264, 1996 ASME International Mechanical Engineering Congress, 17-22 November, 1996, Atlanta, Georgia.
  
• Y. X. Yao, R. Kovacevic, and Y. M. Zhang, "Robust fault detection and isolation for linear input time-delay systems" Proceedings of the ASME Dynamic Systems and Control Division, DSC-Vol. 58: 859-866, 1996 ASME International Mechanical Engineering Congress, 17-22 November, 1996, Atlanta, Georgia.
  
• Y. M. Zhang, Z. N. Cao, and R. Kovacevic, "Numerical dynamic analysis of moving GTA weld pool," Proceedings of the 1996 ASME International Mechanical Engineering Congress, HTD-Vol. 336/FED-Vol. 240: Transport Phenomena in Materials Processing and Manufacturing 1996, pp. 313-320, 17-22 November, 1996, Atlanta, Georgia.
  
• R. Kovacevic, Y. M. Zhang, L. Li, and H. Beardsley, Sensing and control of weld geometrical appearance," the 26th Conference on Production Engineering, Oct. 2-4, 1996, Budva, Yugoslavia.
  
• Y. M. Zhang and R. Kovacevic, "Monitoring of three-dimensional arc weld pool surface," the 26th Conference on Production Engineering, Oct. 2-4, 1996, Budva, Yugoslavia.
  
• R. Kovacevic, and Y. M. Zhang, "Adaptive robotic welding using vision feedback," the 26th Conference on Production Engineering, Oct. 2-4, 1996, Budva, Yugoslavia.
  
• Y. M. Zhang, B. Walcott, and R. Kovacevic, "Model distance criterion for order determination of ARMA models," Preprints of the 13th World Congress of the International Federation of Automatic Control (IFAC), Vol. J, pp. 263-268, June 30-July 5, 1996, San Francisco, CA.
  
• R. Kovacevic and Y. M. Zhang, "On-line measurement of weld fusion zone state using weld pool image and neurofuzzy model," Proceedings of the 1996 IEEE International Symposium on Intelligent Control, pp. 307-312, Sept. 15-18, 1996, Dearborn, Michigan.
  
• Y. M. Zhang, L. Li, and R. Kovacevic, "Dynamic correlation between weld pool shape and weld penetration," 1995 ASME International Mechanical Engineering Congress, ASME, MD-Vol. 69-2, pp. 883-898, 12-17 November, 1995, San Francisco, CA.
  
• Y. M. Zhang, L. Li, and R. Kovacevic, "Monitoring of weld pool appearance for penetration control," in The Proceedings of the 4th International Conference on Trends in Welding Research, 5-8 June, 1995, Gatlinburg, TN.
  
• R. Kovacevic and Y. M. Zhang, "Vision sensing of 3D weld pool surface," in The Proceedings of the 4th International Conference on Trends in Welding Research, 5-8 June, 1995, Gatlinburg, TN.
  
• R. Kovacevic, Y. M. Zhang, H. E. Beardsley, and Erlenbeck, M., "On-line sensing of metal transfer for adaptive control of GMA welding," in The Proceedings of the 4th International Conference on Trends in Welding Research, 5-8 June, 1995, Gatlinburg, TN.
  
• R. Kovacevic, and Y. M. Zhang, "Weld pool sensing and control: 2D shape and 3D surface," Proceedings of the International Symposium on Materials Science and Technology, pp. 379-384, June 4-7, 1995, Harbin, China.
  
• Y. M. Zhang, and R. Kovacevic, "Modeling and real-time identification of weld pool characteristics for intelligent control," The First Congress on Intelligent Manufacturing Process & Systems, CIRP, Feb. 13-17, 1995, Mayaguez, Puerto Roco.
  
• R. Kovacevic, and Y. M. Zhang, "Model-based predictive control of weld pool area in GTAW," Proceedings of the 1994 American Control Conference, pp. 313-317.
  
• R. Kovacevic, and Y. M. Zhang, "ARMA order selection for spectrum estimation," Proceedings of the 1994 American Control Conference, pp. 768-772.
  
• Y. M. Zhang, H. E. Beardsley, and R. Kovacevic, "Real-time image processing in 3D measurement of weld pool surface," 1994 ASME International Mechanical Engineering Congress, ASME, PED-Vol. 68-1, pp. 255-262.
  
• Y. M. Zhang, R. Kovacevic, and R. Mohan, "Spectral identification of abrasive waterjet generated surface," 1994 ASME International Congress of Mechanical Engineering, ASME, PED-Vol. 68-1, pp. 325-337.
  
• H. Beardsley, R. Kovacevic, and Y. M. Zhang, "Fuzzy logic control of gas tungsten arc welding penetration using infrared sensing," Proceedings of the Fifth International Welding Computerization Conference, 186-196, Golden, Colorado, August 10-12, 1994.
  
• R. Kovacevic, and Y. M. Zhang, "Adaptive control of GTA welding of sheet metals," Proceedings of the Fifth International Welding Computerization Conference, pp. 38-48, Golden, Colorado, August 10-12, 1994.
  
• Y. M. Zhang, R. Kovacevic, and L. Wu, "Robust adaptive control of full penetration using weld depression feedback," Proceedings of the Fifth International Welding Computerization Conference, pp. 99-110, Golden, Colorado, August 10-12, 1994.
  
• R. Kovacevic, L. Wang, and Y. M. Zhang, "Detection of AWJ nozzle wear using acoustic signature analysis," Proceedings of the 7th American Water Jet Technology Conference, Vol. 1, pp. 217-231, Aug. 28-31, 1993, Seattle, WA.
  
• R. Kovacevic, Y. M. Zhang, and S. Ruan, "Three-dimensional measurement of weld pool surface," Proceedings of the International Conference on Modeling and Control of Joining Processes, pp. 600-607, Dec. 8-10, 1993, Orlando, FL.
  
• R. Kovacevic, Y. M. Zhang, and H. Beardsley, "Weld penetration control with infrared sensing and neural network technology," Proceedings of the International Conference on Modeling and Control of Joining Processes, pp. 393-400, Dec. 8-10, 1993, Orlando, FL.
  
• R. Mohan, R. Kovacevic and Y. M. Zhang, "On-line monitoring of surface profile generated by AWJ using cutting force signature," Proceeding of the ASME 1993 Winter Meeting, 1993.11, New Orleans, Louisiana, USA, PED-Vol. 63, pp.719-732.
  
• Y. M. Zhang, R. Kovacevic, and L. Wu, "On-line measure of full penetration weld geometry," Preprints of the 12th World Congress of the International Federation of Automatic Control (IFAC), Vol. 8, pp. 97-100, 18-23 July, 1993, Sydney, Australia.
  
• R. Mohan, R. Kovacevic and Y. M. Zhang, "Characterization of surface texture generated by high energy jets," Proceeding of the ASME 1992 Winter Meeting, Nov. 1992, Anaheim, California, USA, PED-Vol. 62, pp.203-218.
  
• Y. M. Zhang, B. L. Walcott and L. Wu, "Adaptive predictive decoupling control of full penetration process in GTAW," Proceedings of the 1st IEEE Conference on Control Application, pp. 938-943, Sept. 1992, Dayton, Ohio.
  
• Y. M. Zhang, B. L. Walcott, and L. Wu, "Dynamic modelling of full penetration process in GTAW," Proceedings of 1992 American Control Conference, Vol. 4, pp. 3151-3155, June 1992, Chicago, USA.
  
• Y. M. Zhang, B. L. Walcott and L. Wu, "Adaptive weighting Least-Squares estimation of initial residuals," Proceedings of the 1992 American Control Conference, pp. 3345-3349, June 1992, Chicago, USA.
  
• Y. M. Zhang, R. Kovacevic, L. Wu and D. H. Chen, "Controlling weld penetration using vision sensing and adaptive control technique," Transactions of the North American Manufacturing Research Institute of the SME, Vol. XX, pp. 317-323, 1992.
  
• R. Kovacevic and Y. M. Zhang, "On-line fuzzy recognition of abrasive waterjet nozzle wear," in Jet Cutting Technology (Proceedings of the 11th International Conference on Jet Cutting Technology), pp. 329-345, September 1992, U.K., Kluwer Academic Publishers.
  
• R. Kovacevic, Y. M. Zhang, and H. E. Beardsley, "Spectral-based order determination for autoregressive models," Proceedings of the International Conference on Signal Processing Applications and Technology, pp. 154-160, Nov. 1992, Boston, Massachusetts.
  
• Y. M. Zhang, R. Kovacevic, and L. Wu, "Three-dimensional vision sensing of weld penetration," Proceedings of the IASTED International Conference on Control and Robotics, pp. 301-304, Vancouver, Canada, August 4-6, 1992.
  
• Y. M. Zhang, and L. Wu, "An optimal strategy for modeling stationary random sequence," in Preprints of the 14th International Federation of Information Processing and International Federation of Automatic Control (IFIP/IFAC) Conference on System Modelling and Optimization, July 3-7, 1989, Leipzig, Germany.
  
• Y. M. Zhang, and G. Y. Wu, "The adaptive automatic prediction of epidemic situations," Preprints of the 8th International Federation of Automatic Control (IFAC) Symposium on Identification and System Parameter Estimation, Vol. 3, pp. 1840-1843, Sept. 26-30, 1988, Beijing, China.
  
• L. Wu, Q. H. Xu, and Y. M. Zhang, "Adaptive real-time control of a low-cost welder," in Preprints of the International Federation of Automatic Control (IFAC) Symposium on Low-Cost Automation, Nov., 1986, Valencia, Spain.
  
• Y. M. Zhang, L. Wu, and Q. H. Xu, "HY-I robotic welding system," in Proceedings of 2nd Sino-Japan International Conference on Computer Applications, Sept. 27-30, 1986, Sapporo, Japan.

Abstracts

• Y. M. Zhang, S. B. Zhang, and M. Jiang, "Single-pass arc welding of heavy sections materials," 82th Annual American Welding Society Convention, Cleveland, OH, May 6-19, 2001.
  
• S. B. Zhang, J. Philips, and Y. M. Zhang, "Seam tracking using non-transferred plasma arc," 82th Annual American Welding Society Convention, Cleveland, OH, May 6-19, 2001.
  
• C. Pan, A. T. Male, Y. M. Zhang, "Improving columnar to equiaxed transition during solidification of welds," 82th Annual American Welding Society Convention, Cleveland, OH, May 6-19, 2001.
  
• A. T. Male, P. J. Li, Y. W. Chen, and Y. M. Zhang, "Flexible forming of sheet metal using plasma arc," 81th Annual American Welding Society Convention, Chicago, IL April 24-27, 2000.
  
• P. J. Li and Y. M. Zhang, "Analysis of arc light mechanism for sensing of GTAW process," 81th Annual American Welding Society Convention, Chicago, IL April 24-27, 2000.
  
• P. J. Li and Y. M. Zhang, "Droplet transfer control in GMAW of titanium alloy," 81th Annual American Welding Society Convention, Chicago, IL April 24-27, 2000.
  
• S. B. Zhang and Y. M. Zhang, "Efflux plasma charge sensor for keyhole plasma arc welding," 81th Annual American Welding Society Convention, Chicago, IL April 24-27, 2000.
  
• Y. M. Zhang and S. B. Zhang, "Keyhole DSAW process for deep narrow penetration," NSF Design and Manufacturing Grantees Conference, Vancouver, Canada, January 3-6, 2000.
  
• Y. M. Zhang and S. B. Zhang, "Double-sided arc welding," NSF Design and Manufacturing Grantees Conference, Long Beach, CA, January 5-8, 1999.
  
• Y. M. Zhang, L. Li, and A. T. Male, "Weld Penetration Control Based on Weld Pool Geometry," NSF Design and Manufacturing Grantees Conference, Long Beach, CA, January 5-8, 1999.
  
• Liguo E and Y.M. Zhang, "improving parameter range for sheet metal welding," 80th Annual American Welding Society Convention, St. Louis, MO, April 13-15, 1999.
  
• P. J. Li, A. T. Male and Y. M. Zhang, "A GMAW based rapid prototyping system," 80th Annual American Welding Society Convention, St. Louis, MO, April 13-15, 1999.
  
• Y. M. Zhang and S. B. Zhang, "Double-sided arc welding: process fundamentals," 80th Annual American Welding Society Convention, St. Louis, MO, April 13-15, 1999.
  
• P. J. Li and Y. M. Zhang, "Sensing weld seam based on arc light," 80th Annual American Welding Society Convention, St. Louis, MO, April 13-15, 1999.
  
• Y. M. Zhang, L. Li, and A. T. Male, "Weld joint penetration control based on vision feedback of weld pool geometrical appearance," NSF Design and Manufacturing Grantees Conference, Monterrey, Mexico, January 5-8, 1998.
  
• S. B. Zhang and Y. M. Zhang, "Noncontact ultrasonic seam tracking," 79th Annual American Welding Society Convention, April 26-30, 1998, Detroit, MI.
  
• Y. M. Zhang and Liguo E, "Robust control of pulsed gas metal arc welding process," 79th Annual American Welding Society Convention, April 26-30, 1998, Detroit, MI.
  
• Y. M. Zhang and S. B. Zhang, "Keyhole size and stability in keyhole plasma arc welding," 79th Annual American Welding Society Convention, April 26-30, 1998, Detroit, MI.
  
• Y. M. Zhang and L. Li, "Neurofuzzy-model based control of front- and back-side pool widths," 79th Annual American Welding Society Convention, April 26-30, 1998, Detroit, MI.
  
• Y. M. Zhang, Liguo E, and R. Kovacevic, "Active control of droplet growth and detachment using vision feedback," 78th Annual American Welding Society Convention, April 13-17, 1997, Los Angeles, CA.
  
• R. Kovacevic, Y. M. Zhang, and H. Beardsley, "Real-time measurement of 3D shape of weld pool surface," NSF Design and Manufacturing Grantees Conference, January 2-5, 1996, Albuquerque, NM.
  
• Y. M. Zhang, L. Li, R. Kovacevic, "Neurofuzzy model based non-linear modeling and control of weld fusion zone geometry" Advanced Materials: Development, Characterization, Processing, and Mechanical Behavior, pp. 149-150, Proceedings of the 1996 ASME International Mechanical Engineering Congress, MD-Vol. 74, Materials Division, ASME, 17-22 November, 1996, Atlanta, Georgia.
  
• R. Kovacevic, Y. M. Zhang, L. G. E, "Dynamics of droplet geometry during metal transferin GMAW - a model for process control," Advanced Materials: Development, Characterization, Processing, and Mechanical Behavior, pp. 143-144, Proceedings of the 1996 ASME International Mechanical Engineering Congress, MD-Vol. 74, Materials Division, ASME, 17-22 November, 1996, Atlanta, Georgia.
  
• R. Kovacevic, Y. M. Zhang, and H. Beardsley, "Real-time measurement of 3D shape of weld pool surface," NSF Design and Manufacturing Grants Conference, Jan. 2-5, 1996, Albuquerque, NM.
  
• R. Kovacevic, L. Li., Y. X. Yao, and Y. M. Zhang, "Robust control of geometrical appearance of weld pool," 77th Annual American Welding Society Convention, Chicago, IL, April 23-25, 1996.
  
• H. Beardsley, Y. M. Zhang, and R. Kovacevic, "High-speed machine vision for postweld quality inspection," 77th Annual American Welding Society Convention, Chicago, IL, April 23-25, 1996.
  
• R. Kovacevic, M. Erlenbeck, H. Beardsley, and Y. M. Zhang, "Real-time image acquisition and processing of metal transfer," 77th Annual American Welding Society Convention, Chicago, IL, April 23-25, 1996.
  
• Y. M. Zhang, Z. N. Cao, and R. Kovacevic, "Numerical analysis of dynamic response of weld pool to welding parameters," 77th Annual American Welding Society Convention, Chicago, IL, April 23-25, 1996.
  
• Y. M. Zhang, and R. Kovacevic, "Dynamic identification of GTAW process," 76th Annual American Welding Society Convention, Cleveland, OH, April 26-29, 1995.
  
• R. Kovacevic, Y. M. Zhang, and H. Beardsley, "Direct observation and real-time extraction of 3D weld pool surface," 76th Annual American Welding Society Convention, Cleveland, OH, April 26-29, 1995.
  
• R. Kovacevic, R. Mohan, and Y. M. Zhang, "Monitoring of plasma arc welding process using machine vision and acoustic signatures," 76th Annual American Welding Society Convention, Cleveland, OH, April 26-29, 1995.
  
• Y. M. Zhang, R. Kovacevic, and L. Wu, "Sensing of full penetration based on 3D vision," 74th Annual American Welding Society Convention, Houston, TX, April 25-30, 1993.
  
• Y. M. Zhang, R. Kovacevic, and Beardsley, H., "Infrared sensing of welding parameters for weld penetration control," 74th Annual American Welding Society Convention, Houston, TX, April 25-30, 1993.

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Last Updated: April 29, 2008