1. Restricted © Siemens AG 2013 All rights reserved.Smarter decisions, better products. Control ESR Progress Report Advanced optimal and robust design method for spatially distributed active damping systems October 21, 2014, Xueji Zhang

2. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 2Siemens PLM Software Project overview

3. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 3Siemens PLM Software Project overview (more focused on control aspects)  State-space modeling: Model Order Reduction;  Optimal sensor/actuator placement over the global structure;  Distributed control algorithms design for vibration reduction;  Off-line simulations: 1) In MATLAB/Simulink environment; 2) In FE environment, dealing with spill-over problems, need integration of control algorithms in e.g. ANSYS;  Physical experimental test bench construction;  On-line simulations: Rapid Control Prototyping;  Demonstration

4. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 4Siemens PLM Software Past: SISO feedback disturbance rejection: velocity, acceleration, integral force, LQG(tuned)

5. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 5Siemens PLM Software Dynamic equation for free vibration

6. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 6Siemens PLM Software Past: Test bench documentation (draft version) DAQ system; Test rig; Plate dimension; Real-time control platform host PC, target PC(real-time kernel)… Piezoelectric components; Boundary condition: C-C-C-C I/O board: # of channel …

7. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 7Siemens PLM Software Past: Workshops Summer school: Data-driven modeling (system identification) and control; [June, 2014, The Netherlands] Marie Curie Internal Training: [July, 2014, Siemens Industry Software LMS, Belgium] 1.Experimental modal analysis and test 2.Experimental NVH Summer school: Numerical Optimal Control; 3 Credits [August, 2014, Freiburg, Germany] Workshop: EMBOPT2014 Embedded (distributed) Optimization; [September, 2014, Lucca, Italy] Conference & course: [September, 2014, KU Leuven, Belgium] ISMA2014 conference (non-contributor); ISMA39 Modal Analysis course;

8. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 8Siemens PLM Software Past: Abstract submission On optimal distributed control for vibration suppression on a flexible plate  March, 2015 SPIE smart structures NDE  June, 2015 ICEDyn 2015: International Conference on Structural Engineering Dynamics

9. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 9Siemens PLM Software Past: Literature study Preumont, A. Vibration Control of Active Structures, An Introduction. Springer, 2011. S.O. Reza Moheimani, Andrew J. Fleming, Piezoelectric Transducers for Vibration Control and Damping, Springer, 2006. Dominik Niederberger, Smart Damping Materials using Shunt Control. PhD thesis, ETH, 2005. Donald J. Leo, Engineering analysis of smart material systems. John Wiley & Sons, Inc., Hoboken, New Jersey, 2007. Johan Nikolaos Tsitsiklis, Problems in Decentralized Decision Making and Computation. PhD thesis, MIT, 1984.

10. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 10Siemens PLM Software Short-term future: Doctoral courses to follow CTU  Cooperative control of multi-agent systems  Flexible structures control  Linear Matrix Inequality in Control  Courses to be defined in KU Leuven

11. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 11Siemens PLM Software Short-term: distributed control simulation for simple scenarios  Model order reduction  Sensor/Actuator placement fixed  Investigate the distributed algorithm design: # of neighbors; stability; damping performance;

12. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 12Siemens PLM Software Mid-term future:  Possible conference paper submission  Backup theory exploitation for future real-time experiment: optimal sensor/actuator placement over the global structure; communication range around local controllers;  Physical experimental test bench construction

13. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 13Siemens PLM Software Long-term future:  Distributed control algorithms design for coupled smart structure  Off-line simulations: 1) In MATLAB/Simulink environment; 2) In FE environment, dealing with spill-over problems, need integration of control algorithms in e.g. ANSYS  On-line simulations: Rapid Control Prototyping  Doctoral dissertation

14. 2014-10-20 Restricted © Siemens AG 2013 All rights reserved. Page 14Siemens PLM Software Questions? Thanks