David T. Ma

Professor of Civil and Environmental Engineering
Office: Holmes Hall 339
Phone: (808)956-7377
E-mail: tianwei@hawaii.edu

Areas of Specialty and Research Interest

  • Structural Health Monitoring
  • Nondestructive Testing
  • Seismic- and Wind- Structural Control
  • Structural Dynamics
  • Linear and Nonlinear System Identification

Education

  • Ph.D., Mechanical Engineering, University of California, Santa Barbara
  • M.S.,  Electrical and Computer Engineering, University of California, Santa Barbara
  • M.S.,  Mechanical Engineering, University of Science and Technology Beijing, China
  • B.S.,   Naval Architecture, Shanghai Jiao Tong University, China

Experience

  • Professor, Department of Civil & Environmental Engineering, University of Hawai’i, Manoa, June 2015 – present
  • Associate Professor, Department of Civil & Environmental Engineering, University of Hawai’i, Manoa, August 2010 – 2015
  • Assistant Professor, Department of Civil & Environmental Engineering, University of Hawai’i, Manoa, August 2005 – 2010
  • Postdoctoral Researcher, Department of Mechanical Engineering & Environmental Engineering, University of California, Santa Barbara, July 2003-August 2005
  • Mechanical Engineer, Research and Development Institution, No. 2 Heavy Machinery Group of China, July 1991 – September 1999

Courses Taught at UH (in the last five years)

  • CEE 381: Structural Analysis (S’13, S’14, F’14, S’15, F’15, S’16)
  • CEE 482: Indeterminate Structures
  • CEE 675: Structural Dynamics I (S’14)
  • CEE 677: Smart Structures Technology (F’13, F’15, F’16)
  • CEE 681: Modern Structural Analysis (F’16)
  • CEE 691: Seminar in Civil and Environmental Engineering (S’13)

Professional Activities

  • Member, American Society of Civil Engineers, ASCE
  • Member, American Institute of Aeronautics and Astronautics, AIAA

Selected Publications

Journal Publications

  1. Hui Zhang, Tianwei Ma (2015) “Roles of the Excitation in Harvesting Energy from Vibrations” PLoS ONE, 
10 (10): e0141299. doi:10.1371/journal.pone.0141299Vibrations”
  2. Hui Zhang and T. W. Ma “Period-one rotating solutions of horizontally excited pendulum based on Iterative 
Harmonic Balance”, Advances in Pure Mathematics, 5, 413-427. DOI: 10.4236/apm.2015.58041.
  3. Ma, T.W., Bell, M.,Lu,W. and Xu, N.S. (2014) “Recovering Structural Displacements and Velocities from Acceleration Measurements”, Smart Structures and Systems, 14(2), 191-207, DOI: http://dx.doi.org/10.12989/sss.2014.14.2.191
  4. Ma, T. W. and Zhang, Hui (2014) “Reaping the full potential of nonlinear energy harvesting with tunable 
damping and modulation of the forcing functions”, Applied Physics Letters, 104, 214104, DOI: 10.1063/1.4879846
  5. Zhang, H.and Ma, T.W. (2012) “Iterative Harmonic Balance for Period-One Rotating Solution of Parametric 
Pendulum”, Nonlinear Dynamics, 70, 2433-2444, DOI: 10.1007/ s11071-012-0631-8
  6. Ma, T. W. and Zhang, H. (2012) “Enhancing Mechanical Energy Harvesting with Dynamics Escaped from 
Potential Well”, Applied Physics Letters 100(11), 114107
  7. Ma, T. W., Xu, N. S., and Zhang, H. (2012). “A novel parametrically excited nonlinear energy harvester”, 
Mechanical Systems and Signal Processing, 28(4), 323–332, DOI:10.1016/j.ymssp.2012.01.017
  8. Ma, T.W. (2011). “Opportunities of Using Nonlinear Oscillators to Enhance Energy Harvesting from Impulsively Loaded Structures”, Journal of Systems and Control Engineering 225(4), 467–474 DOI: 10.1177/2041304110394563
  9. Sebastijanovic, N., Yang, H. T.Y. and Ma, T. W. (2010). “Detection of Changes in Global Structural Stiffness 
Coefficients Using Acceleration Feedback”, Journal of Engineering Mechanics, ASCE, 136 (9), 1187-1191
  10. Ma, T. W., Johansen, J., Xu, N., and Yang, H. T. Y. (2010). “Improved Decentralized Method for Control of 
Building Structures under Seismic Excitation”, Journal of Engineering Mechanics, ASCE 136 (5) 662 – 673
  11. Ma, T. W. (2010). “Almost Sure Stability Condition of Weakly Coupled Two-DOF Linear Nonautonomous 
Random Systems” Applied Mathematics and Mechanics 31 (8) 1–6
  12. Labou, M. and Ma, T.W. (2009). “Lyapunov Exponents of Parametrically Coupled Linear Two-DOF Stochastic Systems and Related Stability Problems”, Journal of Sound and Vibration 325, 421–435
  13. Iu, C. K., Chen, W. F., Chen, S. L., and Ma, T. W. (2008). “Direct Second-order Elastic Analysis for Steel 
Frame Design”, KSCE Journal of Civil Engineering 12(6), 379–389
  14. Ma, T.W., Xu, N.S, and Tang,Y.(2008). “Decentralized Robust Control of Building Structures Under Seismic 
Excitations”, Earthquake Engineering and Structural Dynamics 37 (1), 121–140.
  15. Sebastijanovic, N., Ma, T. W. and Yang, H. T. Y. (2007). “Finite Element Study of Panel Flutter Detection and 
Control”, AIAA Journal 45(1), 118 – 127
  16. Ma, T. W. and Yang, H. T. Y., (2006). “Sampled-data Adaptive Structural Control with Time Delays”, Journal of Structural Engineering, ASCE 132(7), 1129–1138
  17. Ma, T. W, Yang, H. T. Y. and Chang, C. C, (2005). “Structural Component Damage Diagnosis under Seismic Excitations”, Journal of Engineering Mechanics, ASCE 131(10), 1036 – 1045
  18. Wrobleski, M.S., Ma, T.W. and Yang, H.T.Y., (2004). “Modeling of Structural Accelerations and Application 
to Controller Design” Journal of Earthquake Engineering 8 (6), 947–961
  19. Ma, T. W. and Yang, H. T. Y., (2004). “Adaptive Feedback-Feedforward Control of Building Structures”, 
Journal of Engineering Mechanics, ASCE 130 (7), 786 – 793.

Other Publications

  1. Zhang, H. and Ma, T. W. “New insights into vibration-based energy harvesting”, Proceedings of SPIE, March 2015, San Diego, CA, USA
  2. Bell, M. and Ma, T.W. “Recovering bridge deflections from collocated acceleration and strain measurements”, Proceedings of SPIE, March 2015, San Diego, CA, USA
  3. Zhang, H. and Ma, T. W. “Scavenging Energy From Ambient Vibrations Using Nonlinear Oscillators with Asymmetrical Potential Well”, ASCE Earth and Space Conference, October 2014, St. Louis, USA
  4. Lu, W., Xu, N. X., and Ma, T. W. “Internal-Model Kalman Filtering for Structural Deflection Estimate”, The first International Congress on Advances in Structural Engineering and Mechanics, September 2011, Seoul, Korea
  5. Lu, W., Xu, N. X., and Ma, T. W. “Bridge Deflection Monitoring Based on Acceleration Measurements”, International Symposium On Innovation & Sustainability Of Structures In Civil Engineering, October 28-30, 2011, Xiamen, China
  6. Yu, X.C., Ma, T. W., and Falzarano, J. M. “Application of A New Semi-active Control Strategy to Dynamic Response Control of An Offshore Platform Using MR Dampers”, Proceedings of the ASME 9th International Conference on Ocean, Offshore, and Arctic Engineering, OMAE June 6-11, 2010, Shanghai, China
  7. Ma, T. W., Xu, N. S., and Zhang, H. “A Novel Vibration-based Energy Harvester Using Pendulum-generator System”, Proceedings of the ASCE Earth and Space Conference, March 16-18, 2010 Honolulu, HI (invited)
  8. Ma, T. W., Xu, N. S., and Zhang, H. “A Low-frequency Vibration-based Energy Harvester Utilizing Para- metrical Resonance” Proceedings of the 5th International Workshop on Energy Harvesting, March 3-5, 2010 Blacksburg, VA
  9. Ma, T. W. and Labou, M. “On Energy Harvesting Using Nonlinear Oscillators”, Proceedings of Annual NSF Awardees Conference, June 2009, Honolulu, HI
  10. Zhang, L. M., Ma, T. W., Liu, X. L., and Chen, W. F. “Vulnerability of Framed Structures with Existing Localized Damage” Proceedings of The 14th World Conference on Earthquake Engineering, August 2008, Beijing, China
  11. Iu, J., Ma, T. W., Chan, S. L., and Chen, W. F. “Integrating Design and Analysis: A System Approach”, Proceedings of CTBUH the 8th World Congress, 2008, Dubai, India
  12. Cho, S. Chan, S. L., Chen, W. F, and Ma, T. W. “Modern Simulation Based Design” Proceedings of CTBUH the 8th World Congress, 2008, Dubai, India
  13. Zhang, L. M., Ma, T. W., Park, S. H., Liu, X. L., and Chen, W. F. “Progressive Collapse and Vulnerability of a Framed Structure Subject to a Blast Load”, Proceedings of The first International Workshop on Performance, Protection and Strengthening of Structures under Extreme Loading, September 2007, Vancouver, Canada
  14. Ma, T. W. and Xu, N. S. “Continuous Time Parameter Estimation of Multistory Buildings”, Proceedings of SPIE, Volume 6529, March 2007, San Diego, CA
  15. Han, X., He, Q., Sebastijanovic, N., Ma, T. W., Yang, H. T. Y. “Developing Hybrid Structural Health Monitoring Via Integrated Global Sensing and Local Infrared Imaging”, Proceedings of SPIE, Volume 652, March 2007, San Diego, CA
  16. Ma, T.W., Zhao, W.B., and Liu, J.M. “A MEMS Vibration Sensor Based on Mach Zehnder Interferometers”, 
Proceedings of SPIE, Volume 6529, March 2007, San Diego, CA
  17. Liu, J.M., Lan, Y.J., Zhou, Y., Ma,T.W., Pan, Y.J., and Gong, W.G. “Significance Evaluation of Geometric Features in Classification of Chinese Facial Images”, Proceedings of SPIE, Volume 6531, March 2007, San Diego, CA
  18. Liu, J. M., Mo, X. J., Wang, J., Ma, T. W., and Pan Y. J. “Measuring Three-Axis Force with Four-Part Tactile Sensing Technique”, Proceedings of SPIE, Volume 6529, March 2007, San Diego, CA
  19. Johansen,J.,Ma,T.W.andYang,H.T.Y.“Multi-ObjectiveStructuralControlStrategieswithPolePlacement Constraints”4th World Conference on Structural Control and Monitoring, July 2006, San Diego, CA
  20. Ma, T. W. “Digital Implementation of Real Time Structural Damage Detection and Assessment ”, the Third International Workshop on Advanced Smart Materials and Smart Structures Technology, May 28 – 30, 2006, Tahoe, NV
  21. Sebastijanovic, N., Ma, T.W., Yang, H.T.Y., and Chang, C.C. “Structural Damage Detection and Assessment Using Acceleration Feedback” Proceedings of SPIE, March 2006, San Diego, CA
  22. Sebastijanovic, N., Ma. T. W. and Yang, H. T. Y. “Panel Flutter Detection and Control by Monitoring Eigen- vectors” Proceedings of SPIE, Vol. 5394, March, 2005, San Diego, CA
  23. Ma,T.W.,Yang,H.T.Y.andChang,C.C.“DirectDamageDiagnosisofStructuralComponentUsingGlobal Vibration Response” Proceedings of SPIE, Volume 5394, March 2004, pp. 192–200, San Diego, CA
  24. Ma, T. W., Yang, H. T. Y. and Chang, C. C “Structural Health Monitoring Using Time domain Residual Generator Technique” Proceedings of the 4th Int. Workshop on Structural Health Monitoring, pp. 445–452, September 2003, Palo Alto, CA
  25. Ma, T. W., Wrobleski, M. S. and Yang, H. T. Y. “Improved Sensor Fault Accommodation Neural Networks for Structural Responses” Proceedings of the First European Workshop on Structural Health Monitoring, pp. 1099 – 1106, August 2002, Paris
  26. Wrobleski, M. S., Ma, T. W. and Yang, H. T. Y. “Application and Evaluation of Sensor Fault Detection and Accommodation Neural networks on a Benchmark Structure” Proceedings of the 3rd International Workshop on Structural Health Monitoring, pp. 534-539, September 2001, Palo Alto, CA