ProfessorGunness Lab 1 1 Gunness Lab University of Massachusetts 160 Governors Drive Amherst, MA 01003-2210 danai@ecs.umass.edu(413) 545-1561(413) 545-1027Process Automation LabProjectsPersonal websiteHorizontal TabsEducation B.S.E., University of Michigan, 1980; M.S.E., University of Michigan, 1982; Ph.D., University of Michigan, 1986 Research System identification, parameter estimation, and health monitoring Program Area: Mechanical EngineeringResearch Area: Dynamic Systems and ControlsRenewable Energy Publications Google Scholar JOURNAL PUBLICATIONS K. Danai and A. G. Ulsoy, 1986, ``A Model Based Approach for On-Line Tool Wear Estimation in Turning,'' 1986 SME Manufacturing Technology Review, pp. 49-54. Y. Koren, A. G. Ulsoy, and K. Danai, 1986, ``Tool Wear and Breakage Detection Using a Process Model,'' Annals of the CIRP, Vol. 35, No. 1, pp. 283-288. K. Danai and A. G. Ulsoy, 1987, ``A Dynamic State Model for On-Line Tool Wear Estimation in Turning,'' ASME J. of Eng. for Industry, Vol. 109, No. 4, pp. 396-399. K. Danai and A. G. Ulsoy, 1987, ``An Adaptive Observer for On-Line Tool Wear Estimation in Turning -- Part I: Theory,'' Mechanical Systems and Signal Processing, Vol. 1, No. 2, 1987, pp. 211-225. K. Danai and A. G. Ulsoy, 1987, ``An Adaptive Observer for On-Line Tool Wear Estimation in Turning -- Part II: Results,'' Mechanical Systems and Signal Processing, Vol. 1, No. 2, pp. 226-240. Y. Koren, T. Ko, A. G. Ulsoy, and K. Danai, 1991, ``Flank Wear Estimation Under Varying Cutting Conditions,'' ASME J. of Dynamic Systems, Measurement and Control, Vol. 113, No. 2, pp. 300-307. K. Danai and H. Chin, 1991, ``Fault Diagnosis with Process Uncertainty,'' ASME J. of Dynamic Systems, Measurement and Control, Vol. 113, No. 3, pp. 339-343. H. Chin, and K. Danai, 1991, ``A Method of Fault Signature Extraction for Improved Diagnosis,'' ASME J. of Dynamic Systems, Measurement, and Control, Vol. 113, No. 4, pp. 634-638. R. Nair, K. Danai, and S. Malkin, 1992, ``Turning Process Identification Through Force Transients,'' ASME J. of Eng. for Industry, Vol. 114, No. 1, pp. 1-7. K. Danai, R. Nair, and S. Malkin, 1992, ``An Improved Model for Force Transients in Turning,'' ASME J. of Eng. for Industry, Vol. 114, No. 4, pp. 400-403. M. Fathailal, K. Danai, and G. Barber, 1993, ``Effect of Flank Wear on the Topography of Machined Surfaces,'' Tribology Transactions, Society of Tribologists and Lubrication Engineers, Vol. 36, No. 3, pp. 693-699. H. Chin and K. Danai, 1993, ``Improved Flagging for Pattern Classifying Diagnostic Systems,'' IEEE Trans. on Systems, Man, and Cybernetics, Vol. 23, No. 4, pp. 1101-1107. G. Xiao, S. Malkin, and K. Danai, 1993, ``Autonomous System for Multi-Stage Cylindrical Grinding,'' ASME J. of Dynamic Systems, Measurement, and Control, Vol. 115, No. 4, pp. 667-672. V. B. Jammu, and K. Danai, 1993, ``Unsupervised Neural Network for Tool Breakage Detection in Turning,'' Annals of the CIRP, Vol. 42, No. 1, pp. 67-70. H. Chin, K. Danai, and D. G. Lewicki, 1993, ``Pattern Classifier for Fault Diagnosis of Helicopter Gearboxes,'' IFAC J. of Control Eng. Practice, Vol. 1, No. 5, pp. 771-778. J. Colgan, H. Chin, K. Danai, and S. Hayashi, 1994, ``Tool Breakage Detection in Turning: A Multi-Sensor Method,'' ASME J. of Eng. for Industry, Vol. 116, No. 1, pp. 117-123. Z. Zhu, K. Danai, and J. McCormick, 1994, ``Control Design of a High Speed Robot Arm,'' SME Trans. on Robotics Research, Vol. 3, pp.13-1 to 13-14. H. Taitel, K. Danai, and D. G. Gauthier, 1995, ``Helicopter Track and Balance with Artificial Neural Nets,'' ASME J. of Dynamic Systems, Measurement and Control, Vol. 117, No. 2, pp. 226-231. H. Chin, K. Danai, and D. G. Lewicki, 1995, ``Fault Detection of Helicopter Gearboxes Using the Multi-Valued Influence Matrix Method,'' ASME J. of Mechanical Design, Vol. 117, No. 2, pp. 248-253. J. Jindani, S. Malkin, and K. Danai, 1995, ``A Method of Cam Lift Smoothing,'' J. of Design and Manufacturing, Vol. 5, pp. 61-66. R. Ivester, and K. Danai, 1996, ``Intelligent Control of Machining Under Modeling Uncertainty,'' CIRP Manufacturing Systems, Vol. 25, No. 1, pp. 73-79. V. B. Jammu, K. Danai, and D. G. Lewicki, 1996, ``Unsupervised Pattern Classifier for Abnormality Scaling of Vibration Features for Helicopter Gearbox Diagnosis,'' Machine Vibration, Volume 5, No. 3, pp. 154-162. R. Ivester, K. Danai, and S. Malkin, 1997, ``Cycle Time Reduction in Machining by Recursive Constraint Bounding, ASME J. of Manufacturing Science and Eng., 1997, Vol. 119, No. 2, pp. 201-207. R. Ivester, and K. Danai, 1998, ``Tuning and Automatic Regulation of Injection Molding by the Virtual Search Method,'' ASME J. of Manufacturing Science and Eng., Vol. 120, No. 2, pp. 323-329. V. B. Jammu, K. Danai, and D. G. Lewicki, 1998, ``Structure-Based Connectionist Network for Fault Diagnosis of Helicopter Gearboxes,'' ASME J. of Mechanical Design, March 1998, Vol. 120, No. 1, pp. 100-105. V. B. Jammu, K. Danai, and D. G. Lewicki, 1998, ``Experimental Evaluation of a Structure-Based Connectionist Network for Fault Diagnosis of Helicopter Gearboxes,'' ASME J. of Mechanical Design, Vol. 120, No. 1, pp. 106-110. R. Ivester, K. Danai, and D. O. Kazmer, 1998, ``Automatic Tuning of Injection Molding by the Virtual Search Method,'' J. of Injection Molding Technology, Vol. 2, No. 3, pp. 103-108. K. Wang, D. Yang, K. Danai, and D. G. Lewicki, 1998, ``Model-Based Selection of Accelerometer Locations for Helicopter Gearbox Monitoring,'' J. of American Helicopter Society, Vol. 44, No. 4, pp. 269-275. C. Gan and K. Danai, 1999, ``Model-Based Recurrent Neural Network for Modeling Nonlinear Dynamic Systems,'' IEEE Trans. on Systems, Man, and Cybernetics- part B: Cybernetics, Vol. 30, No. 2, pp. 344-351. C. Gan, and K. Danai, 2001, ``Nonlinear State Estimation by Adaptive Embedded RBF Modules,'' ASME J. of Dynamic Systems, Measurement, and Control, Vol. 123, No. 1, pp. 44-48. D. Yang, K. Danai, and S. Krishnamurty, 2001, ``Knowledge-Based Interval Modeling for Efficient Global Optimization,'' Journal of Design and Engineering Automation, Vol. 4, No. 1, pp. 67-08. D. Yang, K. Danai, and D. Kazmer, 2001, ``A Knowledge-Based Tuning Method for Injection Molding Machines,'' ASME J. of Manufacturing Science and Engineering, Vol. 123, No. 4, pp. 682-691. S. Dong, K. Danai, S. Malkin, and A. Deshmukh, 2004, "Continuous Optimal Infeed Control for Cylindrical Plunge Grinding - Part I: Methodology,'' ASME J. of Manufacturing Science and Eng., Vol. 26, pp. 327-333. S. Dong, K. Danai, and S. Malkin, 2004, ``Continuous Optimal Infeed Control for Cylindrical Plunge Grinding - Part II: Controller Design,'' ASME J. of Manufacturing Science and Eng., Vol. 26, pp. 334-340. S.. Wang, K. Danai, and M. Wilson, 2005, ``A Probability-Based Approach to Helicopter Track and Balance,'' J. of American Helicopter Society, Vol. 50, No. 1, January, pp. 56-64. S. Wang, K. Danai, and M. Wilson, 2005, ``An Adaptive Method of Helicopter Track and Balance,'' ASME J. of Dynamic Systems, Measurement and Control, Vol. 127, No. 2, pp. 275-282. S. Dong, C. E, B. Fan, K. Danai, and D. O. Kazmer, 2007, ``Process-Driven Profiling for Plastics Processing,'' ASME J. of Manufacturing Science and Engineering, Vol. 129, No. 4, pp. 802-809. K. Danai, and J. R. McCusker, 2009, ``Parameter Estimation by Parameter Signature Isolation in the Time-Scale Domain,'' ASME J. of Dynamic Systems, Measurement and Control, Vol. 131, No. 4, 041008. Available online at http://dx.doi.org/10.1115/1.3117197 McCusker, J. R., and Danai, K., 2010, ``Measurement Selection for Engine Transients by Parameter Signatures,'' ASME Trans. on Eng. for Gas Turbines and Power, Vol.~132, Issue 12, 121601. Available on-line at: http://dx.doi.org/10.1115/1.4001808 McCusker, J. R., Danai, K., and Kazmer, D. O., 2010, ``Validation of Dynamic Models in the Time-Scale Domain,'' ASME J. of Dynamic Systems, Measurement and Control, Vol.~132, No.~6, 061402. Available on-line at http://dx.doi.org/10.1115/1.4002479 McCusker, J. R., Currier, T., and Danai, K., 2011, ``Improved Parameter Estimation by Noise Compensation in the Time-Scale Domain,'' Signal Processing, Vol.~91, No.~1, Jan. 2011, pp.~72-84. Available on-line at: http://dx.doi.org/10.1016/j.sigpro.2010.06.008 Simmons, J. C., and Danai, K., 2012, ``In-Flight Isolation of Degraded Engine Components by Shape Comparison of Transient Outputs'' ASME Trans. on Engineering for Gas Turbines and Power, Vol. 134, No. 6, 061602, pp. 1 -11. Available on-line at http://dx.doi.org/10.1115/1.4005814 Danai, K. Civjan, S. A., and Styckiewicz, M. M., 2012, ``Direct Method of Damage Localization for Civil Structures via Shape Comparison of Dynamic Response Measurements,'' Computers and Structures, Vol. 92-93, pp. 297-307. Available on-line at http://dx.doi.org/10.1016/j.compstruc.2011.10.016 Danai, K., Civjan, S. A., and Styckiewicz, M. M., 2013, “Sensor Location Selection for Structures via Identifiability Analysis in the Time-Scale Domain,” J. of Sound and Vibration, Vol. 332, pp. 6296--6311. Available on-line at: http://dx.doi.org/10.1016/j.jsv.2013.06.015 Chase, D., Danai, K., Lackner, M., and Manwell, J., 2013, “Detection of Damage in Operating Wind Turbines by Signature Distances,” International Journal of Prognostics and Health Management, Vol. 4 (Special Issue Wind Turbine PHM) 018, pages 14. Available on-line at: http://www.phmsociety.org/node/981 Simmons, J. C., and Danai, K., 2015, ``Multi-Output Parameter Estimation of Dynamic Models by Output Shapes,'' International Journal of Systems Science, Vol. 46, No. 1, pp. 44-62. Available on-line at http://www.tandfonline.com/eprint/299TsNtxy5DJMRIGazE2/full Teergele, T., and Danai, K., 2015, ``Selection of Outputs for Distributed Parameter Systems by Identifiability Analysis in the Time-Scale Domain,'' International Journal of Systems Science, Vol. 46, No. 16, pp. 2939-2954. Available on-line at: http://www.tandfonline.com/eprint/Indg9W9afXyRkNST2jkx/ful La Cava, W. G., and Danai, K., 2015, “Gradient-Based Adaptation of Continuous Dynamic Model Structures,” International Journal of Systems Science, Vol. 47, No. 1. Available on-line at: http://dx.doi.org/10.1080/00207721.2015.1069905 Danai, K., 2015, "Signature-Based Time Series Analysis for System Identification," IEEE Control Systems, Vol. 35, No. 5, pp. 40-70. Available on-line at: http://dx.doi.org/10.1109/MCS.2015.2449687 La Cava, W. G., Danai, K., Spector, L., Fleming, P., Wright, A., and Lackner, M., 2016 “Automatic Identification of Closed-Loop Wind Turbine Dynamics,” Renewable Energy, Vol. 87, pp. 892-902. Available on-line at: http://dx.doi.org/10.1016/j.renene.2015.09.068 La Cava, W. G., Danai, K., and Spector, L., 2016, "Inference of Compact Nonlinear Dynamic Models by Epigenetic Local Search," Engineering Application of Artificial Intelligence, Vol. 55, pp. 292-306. Available on-line at: http://www.sciencedirect.com/science/article/pii/S0952197616301294 La Cava, W. G., Sahare, K., and Danai, K., 2017, "Restructuring Controllers to Accommodate Plant Nonlinearities,'' ASME J. of Dyn. Sys. Meas. and Control, Vol. 139, No. 8, 081004:1-10. La Cava, W. G., Silva, S., Danai, K., Spector, L., Vanneschi, L., and Moore, J. H., 2019, “Multidimensional Genetic Programming For Multiclass Classification,” Swarm and Evolutionary Computation, Vol. 44, pp. 260-272. Available on-line at: https://doi.org/10.1016/j.swevo.2018.03.015 Danai, K., and La Cava, W. G., 2021, "Controller Design by Symbolic Regression,'' Mechanical Systems and Signal Processing, Vol. 151, April, 107348. CHAPTERS Danai, K., 2001, ``Machine Tool Monitoring and Control,'' Chapter 5 of Mechanical Systems Design Handbook: Modeling, Measurement, and Control, Nwokah, O. D. I. and Hurmuzlu, Y. (Eds.), CRC Press, pp. 75-84. Kazmer, D., and Danai, K., 2001, ``Control of Polymer Processing,'' Chapter 9 of Mechanical Systems Design Handbook: Modeling, Measurement, and Control}, Nwokah, O. D. I. and Hurmuzlu, Y. (Eds.), CRC Press, pp. 139-150. Gan, C., and Danai, K., 2001, ``Model-Based Recurrent Neural Network for Fault Diagnosis of Nonlinear Dynamic Systems,'' Chapter 10 in Radial Basis Function Networks 2, Howlett, R. J., and Jain, L. C., (Eds.) Physica-Verlag (a Springer-Verlag company). Danai, K., 2005, ``Fault Diagnosis of Helicopter Gearboxes,'' C. de Silva (Ed.), Chapter 25 in Vibration and Shock Handbook, CRC Press. Danai, K., 2005, ``Helicopter Rotor Tuning,'' C. de Silva (Ed.), Chapter 24 in Vibration and Shock Handbook, CRC Press. EDITED VOLUMES Automation of Manufacturing Processes, K. Danai and S. Malkin (Eds.), ASME, 1990, Vol. DSC-22. Control of Manufacturing Processes, K. Danai and S. Malkin (Eds.), ASME, 1991, Vol. DSC-28. IMECE Proc. of the Dynamic Systems and Control Division, K. Danai (Ed.), 1996, ASME. RECENT CONFERENCE PAPERS: La Cava, W. G., Spector, L., Danai, K., and Lackner, M., 2014, "Evolving Differential Equations with Developmental Linear Genetic Programming and Epigenetic Hill Climbing,'' {GECCO’14}, July 12–16, Vancouver, BC, Canada. La Cava, W. G., Helmuth, T., Spector, L., and Danai, K., 2015, "Genetic Programming with Epigenetic Local Search,'' {GECCO’15}, July 12-16, Madrid, Spain. La Cava, W. G., and Danai, K., 2015, "Model Structure Adaptation: A Gradient-Based Approach,'' {Proc of ASME DSCC 2015}, Oct. 28-30, Columbus, Ohio. La Cava, W. G., Danai, K., Spector, L., Fleming, P., Wright, A., Lackner, M., 2015, "Automatic Identification Of Closed-Loop Wind Turbine Dynamics via Genetic Programming,'' {Proc. of ASME DSCC 2015}, Columbus, Ohio, Oct. 28-30. Honors Fellow of ASME, 2003 Recipient of NASA Technical Innovation Award for the technical report "Detecting Faults in Helicopter Gearboxes by the MVIM Method,'' Aug. 1996. Recipient of NASA Technical Innovation Award for the technical report "Diagnosing Helicopter Gearboxes Using Connectionist Networks,'' Jan. 1997. Recipient of NASA Technical Innovation Award for the technical report ``Model-Based Placement of Gearbox-Monitoring Accelerometers,'' Jan. 1997. Professor of the year, Mechanical Engineering, Univ. of Massachusetts, 1987/88 Professor of the year, Mechanical Engineering, Univ. of Massachusetts, 1992/93 Professor of the year, Mechanical Engineering, Univ. of Massachusetts, 2006/07 General Electric Outstanding Teaching Award, Univ. of Massachusetts, 1990/91 Society Memberships: Fellow of the American Society of Mechanical Engineers (ASME) American Society of Engineering Education (ASEE) Institute of Electrical and Electronic Engineers (IEEE) American Helicopter Society (AHS) Pi Tau Sigma Honor Society. LinksCV: Danai-CV.pdf