Et profilbilde

Professor
Hirpa Gelgele Lemu { "honorific-suffix": "Professor", "fn": "Hirpa Gelgele Lemu", "tel": "Telephone: +47 51832173", "email": "hirpa.g.lemu@uis.no" }

Faculty Faculty of Science and Technology
Department Department of Mechanical and Structural Engineering and Materials Science
Room KE E-208

Research fields

Selected publications

Research in progress

Work experience

Scientific publications (from Cristin)

  • Lemu, Hirpa G. (2012). Anisotropy Research: New Developments. Nova Science Publishers, Inc.. ISBN 978-1-62081-977-7. 290 p.
  • Gebisa, Aboma Wagari; Lemu, Hirpa G. (2019). Influence of 3D Printing FDM Process Parameters on Tensile Property of ULTEM 9085.
  • Gebisa, Aboma Wagari; Lemu, Hirpa G. (2018). Additive Manufacturing for the Manufacture of Gas Turbine Engine Components: Literature Review and Future Perspectives. American Society of Mechanical Engineers; 2018-06-17 - 2018-06-21.
  • Gebisa, Aboma Wagari; Lemu, Hirpa G. (2018). Effect of Process Parameters on Compressive Properties of ULTEM 9085 Produced by FDM Process. American Society of Mechanical Engineers; 2018-11-09 - 2018-11-15.
  • Kopperstad, Karsten Mikal; Lemu, Hirpa G. (2018). Design and Performance Study of Additive Manufactured Thrusters for Remotely Operated Underwater Vehicle. ISOPE; 2018-06-10 - 2018-06-15.
  • Lemu, Hirpa G. (2018). Influence of 3D Printing FDM Process Parameters on Tensile Property of ULTEM 9085.. Queensland University of Technology (QUT); 2018-12-05 - 2018-12-07.
  • Lemu, Hirpa G. (2018). On Opportunities and Limitations of Additive Manufacturing Technology for Industry 4.0 Era. NTNU og Changzhou University; 2018-09-25 - 2018-09-26.
  • Mohammed, Abdulbasit; Lemu, Hirpa G. (2018). Modelling Wind Turbine System Using Bond Graph Method. Changzhou University; 2018-09-25 - 2018-09-26.
  • Regassa, Yohannes; Lemu, Hirpa G. (2018). Multibody System Modelling and Simulation: Case Study on Excavator Manipulator. Changzhou University; 2018-09-25 - 2018-09-26.
  • Regassa, Yohannes; Sirabizuh, Belete; Lemu, Hirpa G. (2018). Review and Analysis of Processing Principles and Applications of Self-healing Composite Materials. Changzhou University; 2018-09-25 - 2018-09-26.
  • Akessa, Adugna Deressa; Lemu, Hirpa G.; Gebisa, Aboma Wagari (2017). Mechanical Property Characterization of Additive Manufactured ABS Material Using Design of Experiment Approach. ASME; 2017-11-03 - 2017-11-09.
  • Lemu, Hirpa G. (2017). Assessment and Analysis of Structural Health Monitoring Techniques for Rotating Machines. 2017-06-26 - 2017-06-30.
  • Lemu, Hirpa G. (2017). On Competition-driven Teaching of Multidisciplinary Engineering Education: Implementation cases at University of Stavanger. 2017-03-30 - 2017-03-31.
  • Rege, Kristen; Lemu, Hirpa G. (2017). A review of fatigue crack propagation modelling techniques using FEM and XFEM. UiS; 2017-11-30 - 2017-12-01.
  • Trzepiecinski, Thomasz; Fejkiel, Romuald; Lemu, Hirpa G. (2017). Experimental Investigation of Frictional Resistances in the Drawbead Region of the Sheet Metal Forming Processes. 2017-09-22 - 2017-09-24.
  • Vestli, Herman; Lemu, Hirpa G.; Svendsen, Bjørn T.; Gabrielsen, Ole; Siriwardane, S.A. Sudath C. (2017). Case Studies on Structural Health Monitoring of Offshore Bottom-fixed Steel Structures. ISOPE; 2017-06-25 - 2017-06-30.
  • Olsen, Erik Vasøy; Lemu, Hirpa G. (2016). Mechanical testing of composite materials for monocoque design in Formula Student car.
  • Safari, Amir; Hajikolaei, Kambiz Haji; Lemu, Hirpa G.; Wang, Gary G. (2016). A High-Dimensional Model Representation Guided PSO Methodology with Application on Compressor Airfoil Shape Optimization. ASME; 2016-06-13 - 2016-06-17.
  • Taboada, Jose V.; Lemu, Hirpa G. (2016). Analysis of Wave Energy Sources in the North Atlantic Waters in View of Design Challenges. ASME OMAE 2016; 2016-06-19 - 2016-06-24.
  • Woldemariam, Endashaw Tesfaye; Lemu, Hirpa G. (2016). Comparative analysis of computational methods in Fluid-Structure Interaction: Temporal descretization and coupling techniques. University of Manchester; 2016-11-10 - 2016-11-11.
  • Lemu, Hirpa G. (2015). Proposal for design-centered cloud computing in engineering design and manufacturing. 2015-10-22 - 2015-10-23.
  • Radostina, Petrova; Assen, Mihailov; Lemu, Hirpa G. (2015). Study of a Vertical Axis Wind Turbine Using Fluid Particle Trajectory. 2015-07-01 - 2015-07-02.
  • Radostina, Petrova; Lemu, Hirpa G. (2015). Adaptability of surgical robot to guide its clamp operation along predefined path. 2015-10-22 - 2015-10-23.
  • Trzepieciński, Tomasz; Lemu, Hirpa G. (2015). A hybrid Method for Description of Frictional Resistance using Modified Bending Under Tension Friction Test. Tallin University of Technology; 2015-11-05 - 2015-11-06.
  • Woldemariam, Endashaw Tesfaye; Lemu, Hirpa G. (2015). Nonlinear isogeometric analysis in simulation-based design optimization: State-of-the-art analysis. 2015-10-22 - 2015-10-23.
  • Alemayehu W., Huluka; Lemu, Hirpa G. (2014). Study and development of vehicle collision detection system. ASME; 2014-11-14 - 2014-11-20.
  • Ioan, Larion; Lemu, Hirpa G. (2014). Study of Coanda effect applied to vertical Wind turbine blades. ASME; 2014-11-14 - 2014-11-20.
  • Radostina, Petrova; Lemu, Hirpa G. (2014). Stress and displacement analysis of a HAWT under time-variable wind. ASME; 2014-11-14 - 2014-11-20.
  • Safari, Amir; Hajikolaei, Kambiz H.; Wang, Gary G.; Lemu, Hirpa G. (2014). Surrogate-assisted Self-accelerated Particle Swarm Optimization. AIAA SciTech; 2014-01-13 - 2014-01-17.
  • Taboada, Jose V.; Lemu, Hirpa G.; Perez, Jose A. (2014). Comparative analysis of two offshore wave energy conversion devices: Cape Verde vs. Flexible Drive Line designs. Renew 2014; 2014-11-24 - 2014-11-26.
  • Lemu, Hirpa G. (2013). Multibody dynamics simulation in design and performance analysis of energy conversion systems – a review. NAFEMS; 2013-02-05 - 2013-02-06.
  • Safari, Amir; Hajikolaei, Kambiz H.; Lemu, Hirpa G.; Wang, Gary G.; Assadi, Mohsen (2013). Decomposition of High-Dimensional Shape Optimization Problems Through Quantifying Design Variable Correlation. ASME; 2013-11-15 - 2013-11-22.
  • Safari, Amir; Lemu, Hirpa G.; Mohsen, Assadi (2013). A Novel Combination of Adaptive Tools for Turbomachinery Airfoil Shape Optimization Using a Real-coded Genetic Algorithm. ASME; 2013-06-03 - 2013-06-07.
  • Younis, Adel; Safari, Amir; Wang, G. Gary; Lemu, Hirpa G.; Dong, Zuomin (2013). SHAPE OPTIMIZATION OF TYPICAL HEAVY-DUTY GAS TURBINE COMPRESSOR AIROFOIL USING METAMODEL BASED ALGORITHM. International Society for Structural and Multidisciplinary O; 2013-05-19 - 2013-05-24.
  • Safari, Amir; Lemu, Hirpa G. (2012). Optimum NURBS curve fitting for geometry parameterization of gas turbine blades’ sections: Part I – Evolutionary optimization techniques. ASME; 2012-11-09 - 2012-11-15.
  • Safari, Amir; Lemu, Hirpa G. (2012). Optimum nurbs curve fitting for geometry parameterization of gas turbine blade’s sections ; part 2: swarm intelligence techniques. ASME; 2012-11-09 - 2012-11-15.
  • Safari, Amir; Lemu, Hirpa G. (2012). Review of Recent Researches on Gas Turbine Blades Shape Optimization Techniques and Approaches. Manipal Institute of Technology; 2012-01-04 - 2012-01-06.
  • Safari, Amir; Lemu, Hirpa G.; Severson, Henning (2012). Geometric Modeling and Numerical Simulation of Airfoil Shapes Using Integrated MATLAB® and COMSOL Multiphysics®. COMSOL; 2012-10-10 - 2012-10-12.
  • Lemu, Hirpa G. (2011). Tolerances in Design and Strain Beyond Elastic Limit. Wollega University, Faculty of Engineering; 2011-10-04 - 2011-12-02.
  • Lemu, Hirpa G. (2011). Transmission System Design and 2D/3D Finite Element Analysis. Jimma University, Dep. of Mechanical Engineering; 2011-12-05 - 2011-12-13.
  • Lemu, Hirpa G.; Trzepieciński, Tomasz (2011). FEM Based Deformability Analysis of Metal Forming: influence of material models and analysis approaches. Universidad de Cadiz; 2011-09-21 - 2011-09-23.
  • Said, Hossein; Safari, Amir; Lemu, Hirpa G. (2011). A Quantitative Prediction of Axial Compressor Performance Deterioration Using Fouling Full 3D Modeling. University of Perugia; 2011-05-16 - 2011-05-18.
  • Uhl, Tadeusz; Lisowski, Wojciech; Prosak, Daniel; Frick, Jan; Lemu, Hirpa G. (2011). Analysis of Companies' Needs Related to the Mechatronics Study Graduates. AGH University; 2011-05-23 - 2011-05-24.
  • Gelgele, Hirpa Lemu (2010). Experimental study and Finite Element Analysis of Expandable Tubulars. Rzeszow University of Technology, Poland; 2010-05-08 - 2010-05-12.
  • Gelgele, Hirpa Lemu (2010). Finite Element Methods in Strength Analysis of Orthopedics Devices. 2010-10-06 - 2010-10-07.
  • Gelgele, Hirpa Lemu (2010). How to Use ANSYS for Strength Analysis - Application Examples for Students and Teaching Staff. Universidad de Vigo, Department of Mechanical Engineering; 2010-11-29 - 2010-12-03.
  • Gelgele, Hirpa Lemu (2010). Rapid Prototyping - A manufacturing Tool for Orthopedics Devices. 2010-10-06 - 2010-10-07.
  • Gelgele, Hirpa Lemu (2009). Design and Analysis of Machines and Mechanisms. European Week, Erasmus Program; 2009-05-04 - 2009-05-09.
  • Gelgele, Hirpa Lemu (2009). Study of Contact Area and Contact Resistance in Contact Design of Tubing Connections. 2009-09-21 - 2009-09-26.
  • Gelgele, Hirpa Lemu (2008). Dimensjonering av maskinelementer.
  • Gelgele, Hirpa Lemu (2008). Introductory Tutorials in Using ANSYS 11 and MATLAB.
  • Gelgele, Hirpa Lemu (2007). Preliminary Study of Tubular Expansion Using Finite Element Methods. 2007-09-05 - 2007-09-09.
  • Gelgele, Hirpa Lemu (2006). Challenges of Knowledge Discovery and Management. 2006-03-23.
  • Gelgele, Hirpa Lemu (2006). Finite Element Based Genetic Algorithm for Structural Design Optimization. 2006-09-11 - 2006-09-15.
  • Gelgele, Hirpa Lemu (2005). Stress Concentration Analysis in Pressure Vessels Using Finite Element Method. 2005-09-26 - 2005-09-30.
  • Gelgele, Hirpa Lemu (2004). The TSP Scenario for Optimized Sequencing of Machining Operations. 2004-09-15.
  • Gelgele, Hirpa Lemu (2003). Solving Manufacturing System Problems Using Hybrid Genetic Algorithm and Artificial Neural Networks. 2003-09-15 - 2003-09-17.
  • Gelgele, Hirpa Lemu; Wang, Kesheng (2002). Modelling and Optimation of Machining Process Using Hybrid Computational Intelligence Approach. 2002-06-20 - 2002-06-21.