C. Okwudire | MAAL

A physics-guided data-driven feedforward tracking controller for systems with unmodeled dynamics—applied to 3D printing

Fri, 29 Dec 2023 00:00:00 +0000

Chou, C., Duan, M., Okwudire, C.*, 2023, “A physics-guided data-driven feedforward tracking controller for systems with unmodeled dynamics—applied to 3D printing,” IEEE Access, 11, pp. 14563-14574.

A hybrid filtered basis functions approach for tracking control of linear systems with unmodeled nonlinear dynamics

Fri, 31 Dec 2021 00:00:00 +0000

Chou, C., Duan, M., Okwudire, C.*, 2021, “A hybrid filtered basis functions approach for tracking control of linear systems with unmodeled nonlinear dynamics,” IEEE International Conference on Automation Science and Engineering (CASE), Lyon.

A linear hybrid model for enhanced servo error precompensation of feed drives with unmodeled nonlinear dynamics

Fri, 31 Dec 2021 00:00:00 +0000

Chou, C., Duan, M., Okwudire, C.*, 2021, “A linear hybrid model for enhanced servo error precompensation of feed drives with unmodeled nonlinear dynamics,” CIRP Annals - Manufacturing Technology, 70, pp. 301-304.

Energy optimal control of an over-actuated hybrid feed drive under variable-frequency

Thu, 31 Dec 2020 00:00:00 +0000

Duan, M., Ramani, K. S., Okwudire, C.*, 2020, “Energy optimal control of an over-actuated hybrid feed drive under variable-frequency,” Control Engineering Practice, 100, pp. 104442.

Analytical and low-order numerical modeling of ball-to-ball contact friction in linear ball bearings and ball screws

Tue, 31 Dec 2019 00:00:00 +0000

Lin, B., Duan, M., Okwudire, C.*, 2019, “Analytical and low-order numerical modeling of ball-to-ball contact friction in linear ball bearings and ball screws,” Journal of Tribology, 141, 7, pp. 071401.

Optimal selection of basis functions for minimum-effort tracking control of nonminimum phase systems using filtered basis functions

Mon, 30 Dec 2019 00:00:00 +0000

Ramani, K. S., Duan, M., Okwudire, C., Ulsoy, A.G.*, 2019, “Optimal selection of basis functions for minimum-effort tracking control of nonminimum phase systems using filtered basis functions,” Journal of Dynamic System, Measurement and Control, 141, 11, pp. 111009.

Connections between control allocation and linear quadratic control for weakly redundant systems

Sun, 29 Dec 2019 00:00:00 +0000

Duan, M., Okwudire, C.*, 2019, “Connections between control allocation and linear quadratic control for weakly redundant systems,” Automatica, 101, pp. 96-102.

An improved analytical model of friction and ball motion in linear ball bearings – with application to ball-to-ball contact prediction

Mon, 31 Dec 2018 00:00:00 +0000

Lin, B., Duan, M., Okwudire, C., Wou, J.S.*, 2018, “An improved analytical model of friction and ball motion in linear ball bearings – with application to ball-to-ball contact prediction,” ASME International Mechanical Engineering Congress and Exposition, Pittsburgh.

Proxy-based energy optimal dynamic control allocation for dual-input, single-output over-actuated systems

Mon, 31 Dec 2018 00:00:00 +0000

Duan, M., Okwudire, C.*, 2018, “Proxy-based energy optimal dynamic control allocation for dual-input, single-output over-actuated systems,” IEEE/ASME Transactions on Mechatronics, 23, 2, pp. 895 - 905.

A lifted domain-based metric for performance evaluation of LTI and LTV discrete-time tracking controllers

Sun, 30 Dec 2018 00:00:00 +0000

Ramani, K. S., Okwudire, C., Duan, M., Ulsoy, A.G.*, 2018, “A lifted domain-based metric for performance evaluation of LTI and LTV discrete-time tracking controllers,” International Symposium on Flexible Automation, Kanazawa.

A limited-preview filtered B-spline approach to tracking control – with application to vibration-induced error compensation of a 3D printer

Sun, 30 Dec 2018 00:00:00 +0000

Duan, M., Yoon, D., Okwudire, C.*, 2018, “A limited-preview filtered B-spline approach to tracking control – with application to vibration-induced error compensation of a 3D printer,” Mechatronics, 56, pp. 287-296.

Proxy-based optimal dynamic control allocation for multi-input, multi-output over-actuated systems

Sun, 31 Dec 2017 00:00:00 +0000

Duan, M., Okwudire, C.*, 2017, “Proxy-based optimal dynamic control allocation for multi-input, multi-output over-actuated systems,” ASME Dynamic Systems and Control Conference, Tysons.

Tracking control of linear time- invariant nonminimum phase systems using filtered basis functions

Sun, 31 Dec 2017 00:00:00 +0000

Ramani, K. S., Duan, M., Okwudire, C., Ulsoy, A.G.*, 2017, “Tracking control of linear time- invariant nonminimum phase systems using filtered basis functions,” Journal of Dynamic System, Measurement and Control, 139, 1, pp. 011001.

Software-based compensation of vibration-induced errors of a commercial desktop 3D printer

Sat, 30 Dec 2017 00:00:00 +0000

Yoon, D., Duan, M., Okwudire, C.*, 2017, “Software-based compensation of vibration-induced errors of a commercial desktop 3D printer,” International Conference on Virtual Machining Process Technology, Montréal.

A simplified analytical model of rolling/sliding behavior and friction in four-point-contact ball bearings and screws

Fri, 29 Dec 2017 00:00:00 +0000

Lin, B., Duan, M., Okwudire, C., Wou, J.S.*, 2017, “A simplified analytical model of rolling/sliding behavior and friction in four-point-contact ball bearings and screws,” ASME International Mechanical Engineering Congress and Exposition, Tampa.

Energy-efficient controller design for a redundantly actuated hybrid feed drive with application to machining

Sat, 31 Dec 2016 00:00:00 +0000

Duan, M., Okwudire, C.*, 2016, “Energy-efficient controller design for a redundantly actuated hybrid feed drive with application to machining,” IEEE/ASME Transactions on Mechatronics, 21, 4, pp. 1822-1834.

Modeling and observer-based compensation of slip in a friction drive for servo positioning

Sat, 31 Dec 2016 00:00:00 +0000

Duan, M., Okwudire, C.*, 2016, “Modeling and observer-based compensation of slip in a friction drive for servo positioning,” International Symposium on Flexible Automation, Cleveland.

A trajectory optimization method for improved tracking of motion commands using CNC machines that experience unwanted vibration

Fri, 30 Dec 2016 00:00:00 +0000

Okwudire, C., 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 - Manufacturing Technology, 65, 1, pp. 373-376.

Near energy optimal control allocation for dual-input over-actuated systems

Fri, 30 Dec 2016 00:00:00 +0000

Duan, M., Okwudire, C.*, 2016, “Near energy optimal control allocation for dual-input over-actuated systems,” ASME Dynamic Systems and Control Conference, Minneapolis.

Minimum-time cornering for CNC machines using an optimal control method with NURBS parameterization

Thu, 29 Dec 2016 00:00:00 +0000

Duan, M., Okwudire, C.*, 2016, “Minimum-time cornering for CNC machines using an optimal control method with NURBS parameterization,” International Journal of Advanced Manufacturing Technology, 85, pp. 1405-1418.

Tracking control of non-minimum phase systems using filtered basis functions: a NURBS-based approach

Thu, 31 Dec 2015 00:00:00 +0000

Duan, M., Ramani, K. S., Okwudire, C.*, 2015, “Tracking control of non-minimum phase systems using filtered basis functions: a NURBS-based approach,” ASME Dynamic Systems and Control Conference, Columbus.

Energy efficiency and performance optimized control of a hybrid feed drive

Wed, 30 Dec 2015 00:00:00 +0000

Duan, M., Okwudire, C.*, 2015, “Energy efficiency and performance optimized control of a hybrid feed drive,” ASME International Manufacturing Science and Engineering Conference, Charlotte.

Minimum-time cornering for manufacturing machines using optimal control

Wed, 31 Dec 2014 00:00:00 +0000

Duan, M., Okwudire, C.*, 2014, “Minimum-time cornering for manufacturing machines using optimal control,” ASME Dynamic Systems and Control Conference, San Antonio.