ORTA DOĞU TEKNİK ÜNİVERSİTESİ                                      MIDDLE EAST TECHNICAL UNIVERSITY
HAVACILIK VE UZAY MÜHENDİSLİĞİ BÖLÜMÜ                 DEPARTMENT OF AEROSPACE  ENGINEERING    

Altan Kayran
Professor
Department of Aerospace Engineering
Middle East Technical University, Ankara, TURKEY

Personal

Professional Experience

Publications

Thesis

Courses

Research Interest

Project Experience

SELECTED PROJECT EXPERIENCE

 

Tübitak 1001:  Determination of the bending-twisting coupling in composite structures via digital image correlation (DIC) method and exploiting bending-twisting coupling in turbine blades for load alleviation in horizontal axis wind turbines

Funding: Tübitak  Project No: 213M611, 2014-2016

Organization : Middle East Technical University

Position: Project Coordinator

 

Establishment of the Wind Energy Technologies Research and Application Center (METUWind)

Funding: Ministry of Development, Project No: BAP-08-11-DPT.2011K120340 , 2011-2015

Organization : Middle East Technical University

Position: Assistant Director of METUWind and Composite Materials Lab. Director

 

SAYP-Project: Interlaminar Progressive Failure Analysis in Composite Structures

Funding: Roketsan Inc. and SSM (Undersecretariat of Defense Industry ), Project No: 2014-03-13-2-00-02 , 2011-2015

Organization : Middle East Technical University

Position: Projector Coordinator

 

Design and manufacturing of a tactical unmanned air vehicle

Funding: Tübitak, Project No: 108M104, 2008-2012

Organization : Middle East Technical University, Department of Aerospace Eng., with Prof. Dr. Nafiz Alemdaroğlu

Position: Researcher

Description: Full composite design and manufacturing of a tactical unmanned air vehicle is accomplished. Manufacturing activities are done in the prototype composite manufacturing workshop established in the Department of Aerospace Engineering. The project was a continuation of the previous project funded by the State Planning Office. Structural and aeroelastic analysis are perfomed as part of MS thesis studies which are listed under the "Thesis" link.

 

Design and manufacturing of an unmanned air vehicle system

Funding: State Planning Office, 2003-2006

Organization : Middle East Technical University, Department of Aerospace Eng., with Prof. Dr. Nafiz Alemdaroğlu

Position: Researcher

Description: Product and infrastructure established within the scope of the project comprise:

  • Design and manufacturing of four composite mini unmanned air vehicle which can be hand launched and belly landed

Platforms are equipped with autopilot system and can perform way point navigation. With the on-board video down link system, real time video images can be sent to ground control station and captured on ground for real time monitoring. The air vehicle is equipped with electric motor with folding propeller suitable for belly landing.

  • Conceptual design and manufacturing of a reinforced foam model of the tactical unmanned air vehicle

 

Reinforced foam model of the tactical unmanned air vehicle

  • Establishment of a composite manufacturing facility with the following capabilities

Vacuum bagging, vacuum infusion composite manufacturing infrastructure

Curing oven of maximum 200 deg. Celcius temperature capacity with vacuum ports

Male, female mold making workshop with separate fanned trim room for trimming and painting operations

Composite fabric, chemicals and adhesive bonding storage room for composite manufacturing applications

Numerically controlled automatic foam cutter

Small scale carpenter shop for mold making, manufacturing of back-up structure of molds and internal reinforcements of airplanes

  • Establishment of a design office equipped with CATIA V5, Fluent, MD Nastran, Patran, Marc Mentat, Dytran, Adams, Aeroelasticity I, Flightloads, Matlab, Absoft Pro Fortran and IMSL libraries, direct access to ESDU database

  • Establishment of electromechanical system integration room

  • Strorage room for airplane electromechanical systems

Effect of asymmetric flare ejection loads on the aircraft roll and pitch characteristics

Organization: Aselsan Inc. 2002

Position: Senior Design Engineer

Description: Performed simplified calculations for the determination of the effect asymmetric flare ejection loads on the roll and pitch characteristics of the transport aircraft  before the flare ejection qualification flight tests. The simplified calculation did not include the air damping effect and it is deemed to be a conservative prediction of the effect of assymmetric flare ejection loads.

Preparation of the test plan for the certification of the mission system aircraft

Organization: Aselsan Inc. 2002

Position: Senior Design Engineer

Description: Prepared the relevant ground and flight test phase activities with a group of people, including the chaff/flare ejection test plan, for the qualification of the project aircraft with the mission system on

Conceptual design of a Stewart platform

Organization: Aselsan Inc. 2002

Position: Senior Design Engineer

Description: Established the methodology for the solution of the inverse and forward kinematics of the six degree of freedom Stewart platform, characterized the joint degrees of freedom and joint types.     

Design and manufacturing of a slip ring system for a rotary antenna

Organization: Aselsan Inc. 2003

Position: Senior Design Engineer

Description: Designed and lead the manufacturing of a prototype slip ring  system for a rotary antenna.

Updating of the aircraft flight manuals (vol.1 and 2) and pilotchecklist for modified transport aircraft

Organization: Aselsan Inc. 2001-2002

Position: Senior Design Engineer

Description: Controlled the activities performed for the updating of transport aircraft flight manuals (Vol. 1 and 2) and pilotcheklist of the modified transport based on the flight test results. This work was performed together with the 2nd Air Maintenance Supply Center and Indonesian Aerospace Industries.

Certification flight tests of the modified transport aircraft

Organization: Aselsan Inc. 1998-2001

Position: Senior Design Engineer

Description: Jointly coordinated the flight test activities and relevant ground test activities for the qualification of the modified project aircraft in a joint board participated by the three parties involved, worked as flight test engineer in a 17 sorty qualification flight test program, evaluated and made the final acceptance of the flight and ground test results reports on behalf of ASELSAN and Turkish Air Force. Certification project was performed together with the 2nd Air Maintenance Supply Center and Indonesian Aerospace Industries.

Flight tests conducted included: 6 sorties of flight flutter tests, 2 sorties of drag polar flight tests, 3 sorties of one engine inoperative climb flight test, 1 sorty of longitudinal static stability flight test, 1 sorty of dynamic stability flight test, 1 sorty of minimum control speed flight test, 2 sorties of stall speed determination flight test, 1 sorty of steady heading side slip flight test

Certificate program for 'Introduction to Flight Physics Test Techniques’ given by the Indonesian Aerospace Industries

Organization: Aselsan Inc. 1999

Position: Senior Design Engineer

Description: Attended one month training program for the 'Introduction to Flight Physics Test Techniques' in Indonesia within the facilities of Indonesian Aerospace Industries. Theoretical training was proceeded with 4 sorties of flight demonstrating the flight test techniques. 

Design, analysis (Static, Dynamic and Flutter Analyses), production and assembly of an external electronic pod to the wing of  transport aircraft

Organization: Aselsan Inc. 1999-2001

Position: Senior Design Engineer

Description: Lead the whole design, analysis, production and assembly work steps of the integration of an external store to the wing of a transport aircraft in a joint project. Indonesian Aerospace Industries and 2nd Air Supply Maintenance Center Command were Aselsan subcontractors in the project.

Finite element modeling of the external store mounted wing of a transport aircraft: Static stress analysis under aerodynamic loading and free vibration analysis

Organization: Aselsan Inc. 1998-2001

Position: Senior Design Engineer

Description: Established the solid model and finite element model of the external electronic pod mounted wing by the I-DEAS software, and evaluated the effect of the external pod on the static stress distribution, natural frequencies and mode shapes of the wing in a joint industry-university (Middle East Technical University) collaboration project. Coordinated the project on behalf of Aselsan Inc.

Mechanical design of electronic system packages and antenna guide systems

Organization: Aselsan Inc. 1997-1998

Position: Senior Design Engineer

Description: Designed and lead the production of the prototype mechanical systems for various antenna guide systems and receivers. The designs were performed in I-DEAS Computer Aided Design software and miniature card packages are produced in CNC.

Determination of the influence of conditions during impact on the extent of damage

Organization: Boğaziçi University, 1995-1997

Position: Assistant Professor

Description: The project was an EUCLID/CEPA 3/RTP 3.1 project. Within the work element the  delamination growth loads are determined numerically for composite laminates with different stacking sequences and multiple delaminations. This project was subcontracted to Bosphorous University by TAI.

Conformance to European  motor vehicle type approval system in Turkey in the process of customs union

Organization: TOFAŞ Automobile Industries Inc., 1994-1996

Position: Design and development engineer

Description: Represented Tofaş in the project team established by the Automotive Industry Organization. The aim of the project was to come up with a plan which is suitable for the Turkish automotive companies in the process of conforming to European motor vehicle type approval system. All related automotive standards are reviewed and a conformance plan is established as a result of the project.

Integration of an LPG kit to a Tofaş automobile

Organization: TOFAŞ Automobile Industries Inc., 1995-1996

Position: Design and development engineer

Description: Performed the review study of the related European ECE standard on the LPG kits, and participated on the first LPG integration work to a Tofaş automobile.

Impact damage and damage growth mechanisms in laminated composites

Organization: TAI, 1993-1995

Position: Senior Design Engineer

Description: This was a EUCLID/CEPA 3/RTP 3.1 project. The joint applied research program top level participants were: Per Udsen (Denmark), DASA (Germany), Dassault (France), Aerospatiale (France), Sonaca (Belgium), IST (Portugal), IMFL (France), TNO (Netherlands), TAI (Turkey), Alenia (Italy), ECF (France), NLR (Netherlands), OGMA (Portugal), Roketsan (Turkey), FhG (Germany), INEGI (Portugal).

Within the work element damage analysis methodology and damage growth criteria is compiled for the carbon reinforced fiber composites used in aircraft structures. Used FEM dynamic analysis software MSC/Dytran in studying the impact response of composite structures.

Future Large Aircraft Pre-Feasibility Study

Organization: TAI, 1993-1995

Position: Senior Design Engineer

Description: Worked on the pre-feasibility of vertical and horizontal stabilizer of the aircraft currently known as A400M.

Unmanned Air Vehicle UAV-X1 design and flight Tests

Organization: TAI, 1992-1994

Position: Senior Design Engineer

Description: Performed structural analysis by MSC/Nastran, worked on the integration of the Vankel engine and mechanical systems to the first prototype unmanned air vehicle. Active member of the ground and flight test planning and evaluation team. This vehicle is the first unmmaned air vehicle designed and manufactured by Turkish engineers. The project ended after a successful pattern flight demostration over an airport.