Dr.-Ing. Jackson G. Njiri

Designation: Lecturer

Responsibilities                                    Chairman of the department.

Area of Research:
Computer Aided Design and Manufacturing, Modelling and Analysis of Machining Processes and Robotics.

Publications:

Njiri J. G., Ikua B. W., Nyakoe G. N., Modeling of cutting forces in ball-end milling of spherical surfaces, Proceedings of the 2010 Mechanical Engineering Conference on Sustainable Research and Innovation, Volume 2, 8th-9th April 2010, pp. 149-154.

Njiri J. G., Ikua B. W. and Nyakoe G. N., “Optimization of Feedrate for Machining of Freeform Surfaces Using an Intelligent Adaptive Controller”, Journal of World Academy of Science, Engineering and Technology, 2011.

Njiri J. G., Ikua, B. W., Nyakoe, G. N., “Cutting Force Control for Ball End Milling of Sculptured Surfaces Using Fuzzy Logic Controller”, Scientific Conference Proceedings, 2012.

Njiri J. G., Ikua, B. W., Nyakoe, G. N., “Optimization of machining parameters for ball-end milling: Case study of sculptured surfaces”, Lambert Academic Publishing,2011, ISBN 978-3-8465-0004-0

Njiri J. G.Multi-Objective Control Strategies and Prognostic-Based Lifetime Extension of Utility-Scale Wind Turbines“, Dissertation, Duisburg, Essen, Universität Duisburg-Essen, 2016.

N. Beganovic, JG. Njiri, D. Söffker,. Wind turbine Control Strategy Deployment Concerning Remaining Useful Lifetime Prognostic Model“, Conference for Wind Power Drives, 2017.

JG. Njiri, Y. Liu, D. Söffker,Disturbance Attenuation using Proportional-Integral-Observer for Wind Turbine Speed Regulation“, ASME 2014 Dynamic Systems and Control Conference, V003T53A005-V003T53A005, 2014.

JG Njiri, D Söffker, Multi-Objective Optimal Control of Wind Turbines for Speed Regulation and Load Reduction“, Proc. ASME, V001T05A002, 2015.

N Beganovic, JG Njiri, S Rothe, D Söffker,  Application of diagnosis and prognosis to wind turbine system based on fatigue load“, Prognostics and Health Management (PHM), 2015 IEEE Conference.

JG Njiri, Y Liu, D Söffker, Multivariable control of large variable-speed wind turbines for generator power regulation and load reduction“, IFAC-PapersOnLine, Vol 48 pgs 544-549, 2015.

JG Njiri, D Söffker, State-of-the-art in wind turbine control: Trends and challenges“, Renewable and Sustainable Energy Reviews, Vol 60 pgs 377-393, 2016.

For more publications , Dr.-Ing. J.G. Njiri’s Google scholar profile.

Contacts:
Office: ELB 215
Email: jackgithu@eng.jkuat.ac.ke, jackgithu@gmail.com
Tel. : 067-5870001-4, Ext. 2356

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