Publications

[J10] He, C., Ramani, K.S., Okwudire, C.E., 2023, "An Intelligent Scanning Strategy (SmartScan) for Improved Part Quality in Multi-Laser PBF Additive Manufacturing," Additive Manufacturing. Vol. 64. 

[J9] Ramani, K.S., He, C., Tsai, Y., Okwudire, C.E., 2022, "SmartScan: An Intelligent Scanning Approach for Uniform Thermal Distribution, Reduced Residual Stresses and Deformations in PBF Additive Manufacturing," Additive Manufacturing. Vol. 52.

[J8] Wu, P., Ramani, K.S., Okwudire, C.E., 2021, “Accurate Linear and Nonlinear Model-based Feedforward Deposition Control for Material Extrusion Additive Manufacturing,” Additive Manufacturing. Vol. 48.

[J7] Edoimioya, N., Ramani, K.S., Okwudire, C.E., 2021, "Software Compensation of Undesirable Racking Motion of H-frame 3D Printers using Filtered B-Splines," Additive Manufacturing. Vol. 47.

[J6] Ramani, K.S., Okwudire, C.E., 2021, “Optimal Selection of Basis Functions for Robust Tracking Control of Uncertain Linear Systems - With Application to 3D Printing”, Transactions of ASME, Journal of Dynamic Systems, Measurement and Control. Vol.143. Issue.10, pp101006-1 to 101006-10.

[J5] Duan, M., Ramani, K.S., Okwudire, C.E., 2020, "Energy Optimal Control of an Over-actuated Hybrid Feed Drive under Variable-Frequency Disturbances - with Application to Machining," Control Engineering Practice, 100, pp. 104442.

[J4] Ramani, K.S., Edoimioya, N., Okwudire, C.E., 2020, "A Robust Filtered Basis Functions Approach for Feedforward Tracking Control – with Application to a Vibration-Prone 3D Printer," IEEE Transactions on Mechatronics. Vol. 25, Issue. 5, pp. 2556-2564. Selected as one of six finalists for the 2021 Best Paper in Mechatronics Award

[J3] Ramani, K.S., Duan, M., Okwudire, C.E., Ulsoy, A.G., 2019, “Optimal Selection of Basis Functions for Minimum-Effort Tracking Control of Nonminimum Phase Systems Using Filtered Basis Functions," Transactions of ASME, Journal of Dynamic Systems, Measurement and Control. Vol.141, No.11, pp.111009-1 to 111009-12.

[J2] Ramani, K.S., Duan, M., Okwudire, C.E., Ulsoy, A.G., 2017, "Tracking Control of Linear Time-invariant Nonminimum Phase Systems using Filtered Basis Functions," Transactions of ASME, Journal of Dynamic Systems, Measurement and Control, Vol.139, No.1, pp.011001-1 to 011001-11.

[J1] Okwudire, C.E., Ramani, K.S., Duan, M.,  2016, “A Trajectory Optimization Method for Improved Tracking of Motion Commands using CNC Machines that Experience Unwanted Vibration,” CIRP Annals of Manufacturing Technology, Vol.65, No.1, pp.373-376. 

[C18] Ramani, K.S., 2022, "Towards Faster and Precise Cable-driven Parallel Robots for Large-scale Manufacturing," 12th International Conference on Precision, Micro, Meso and Nano Engineering (COPEN), December 8-10, Kanpur, India.

[C17] He, C., Ramani, K.S., Tsai, Y., Okwudire, C.E., 2022, "A Simplified Scan Sequence Optimization Approach for PBF Additive Manufacturing of Complex Geometries," 2022 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM 2022), July 11-15, 2022, Hokkaido, Japan. Winner of the Best Paper Award at AIM 2022

[C16] Ramani, K.S., He, C., Okwudire, C.E., 2021, "Intelligent Online Scan Sequence Optimization for Uniform Temperature Distribution in Laser Powder Bed Fusion,"  ASPE Annual Meeting, November 1-5, 2021, Minneapolis, MN.

[C15] Ramani, K.S., Okwudire, C.E., 2021, "Intelligent Scan Sequence Optimization for Uniform Temperature Distribution in Laser Powder Bed Fusion using a Control Theoretic Approach," Modeling, Estimation and Control Conference (MECC 2021), October 24-27, 2021, Austin, TX, USA. 

[C14] Ramani, K.S., Malekipour, E., Okwudire, C.E., 2021, "Toward Intelligent Scan Sequence Optimization for Uniform Temperature Distribution in LPBF Additive Manufacturing," ASME Manufacturing Science and Engineering Conference (MSEC 2021), June 21 - 25, 2021, Virtual Conference.

[C13] Ramani, K.S., Okwudire, C.E., 2020, "Two-stage Robust Tracking Controller for Linear Systems with Known Uncertainty using Filtered Basis Functions," ASME 2020 Dynamic Systems and Controls Conference (DSCC 2020), October 4 - 7, 2020, Pittsburgh, PA.

[C12] Edoimioya, N., Ramani, K.S., Okwudire, C.E., 2020, "Software Compensation of Undesirable Racking Motion of H-frame 3D Printers using Filtered B-Splines", 2020 International Symposium on Flexible Automation (ISFA 2020), July 8-9, 2020, Chicago, IL, USA.

[C11] Wu, P., Ramani, K.S., Okwudire, C.E., 2020,"Robust LPV Model-Based Extrusion Control for Additive Manufacturing Using Filtered Basis Functions," 2020 International Symposium on Flexible Automation (ISFA 2020), July 8-9, 2020, Chicago, IL, USA.

[C10] Wu, P., Ramani, K.S., Okwudire, C.E., 2020,"Model-Based Feed-Forward Deposition Control for Additive Manufacturing," 2020 International Symposium on Flexible Automation (ISFA 2020), July 8-9, 2020, Chicago. IL, USA.

[C9] Ramani, K.S., Okwudire, C.E., 2020, "Optimal Selection of Basis Functions for Robust Tracking Control of Linear Systems using Filtered Basis Functions", American Control Conference (ACC 2020), July 1-3, 2020, Denver, CO, USA.

[C8] Edoimioya, N., Ramani, K.S., Okwudire, C.E., 2019, "Simultaneous Vibration Error Compensation and Feedrate Optimization using Filtered B-splines," 8th International Conference on Virtual Machining Process Technology (VMPT 2019), April 23-25, 2019, Vancouver, British Columbia, Canada.  

[C7] Ramani, K.S., Okwudire, C.E., 2018, "Robust filtered basis functions approach for feedforward tracking control," ASME 2018 Dynamic Systems and Controls Conference (DSCC 2018), September 30-October 3, Atlanta, GA, USA. 

[C6] Ramani, K.S., Duan, M., Okwudire, C.E., Ulsoy, A.G., 2018, "A lifted domain-based metric for performance evaluation of LTI and LTV discrete-time tracking controllers," 2018 International Symposium on Flexible Automation (ISFA 2018), July 15-19, 2018, Kanazawa, Japan.

[C5] Ramani, K.S., Okwudire, C.E., 2016, "Regularized Filtered Basis Functions Approach for Accurate Tracking of Discrete-time LTI Systems with Bounded Random Uncertainties,"  ASME 2016 Dynamic Systems and Controls Conference (DSCC 2016), October 12-14, 2016, Minneapolis, MN, USA.

[C4] Ramani, K.S., Okwudire, C.E., 2016, "A Comparison of Two Methods for Energy Efficient Tracking Control using Filtered Basis Functions," 2016 International Symposium on Flexible Automation (ISFA 2016), August 1-3, 2016, Cleveland, OH, USA.

[C3] Ramani, K.S., Okwudire, C.E., 2016, "Contouring Control of Feed Drive Systems using Filtered B-splines," 5th International Conference on Virtual Machining Process Technology (VMPT 2016), May 22-25, 2016, Taipei, Taiwan.

[C2] Yoon, D., Ramani, K., Okwudire, C.E., 2016, "Optimal Control of a Magnet Assisted Scanning Stage Considering the Machine Dynamics via Filtered Basis Functions," ASPE 2016 Spring Topical Meeting - Precision Mechatronic System Design and Control, April 20-22, Cambridge, MA, USA.

[C1] Duan, M., Ramani, K.S.,  Okwudire, C.E., 2015, “Tracking Control of Non-minimum Phase Systems using Filtered Basis Functions: A NURBS-based Approach,”  ASME 2015 Dynamic Systems and Control Conference (DSCC 2015), October 28-30, 2015, Columbus, OH, USA.  Winner of Best Student Paper Award at DSCC 2015.

[T1] Ramani, K. S., 2020, Feedforward Tracking Control of Nonminimum Phase and Uncertain Linear Systems using Filtered Basis Functions – with Application to 3D Printing, Doctoral Dissertation, University of Michigan. 

[P1] Duan, M., Okwudire, C.E., Ramani, K.S., Use of Filtered Basis Splines to Compensate Servo-Induced Motion Errors, US Patent # 10585414, Publication date: March 10, 2020. 

[M1] Ramani, K.S., Duan, M., Yoon, D., Okwudire, C.E., Ulsoy, A.G., 2018, “Boosting Speed and Accuracy in Precision Motion Control,” ASME Mechanical Engineering, Vol.140, No.9, pp.17-23.