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ISSN: 2348-7887

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Dr. Bimlesh Lochab

Industrial Tribology Machine Dynamics & Maintenance

Engineering Centre (ITMMEC)

Indian Institute of Technology Delhi, India.

Prof. S. Ramaprabhu

Alternative Energy Technology Laboratory,

Department of Physics,

Indian Institute of Technology, Chennai, India.

Dr. Rajiv Prakash

School of Materials Science and Technology,

Institute of Technology, Banaras Hindu University,

Varanasi, India.

Dr. Rakesh Kumar

Assistant Professor, Department of

Applied Chemistry, BIT Mesra,

Patna, India.

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Gargi Asha Jha

Nupur Anand

Priyanka Aswal

Sona Chahal

STM Journal (s) Advisory Board

Dr. Ashish RunthalaLecturer, Biological Sciences Group,

Birla Institute of Technology & Science, Pilani Rajasthan, India.

Dr. Baldev RajDistinguished Scientist & Director,

Indira Gandhi Centre for Atomic Research

(ICGAR)Kalpakkam, India.

Dr. Baskar KaliyamoorthyAssociate Professor, Department

of Civil Engineering National Institute of Technology Trichy, India.

Prof. Bankim Chandra RayProfessor and Head, Department of

Metallurgical and Materials Engineering National Institute of Technology,

Rourkela, India.

Prof.D. N. Rao Professor, Department of Biochemistry,

AIIMS, New Delhi, India.

Prof. Jugal KishoreProfessor, Department of Community

Medicine, Maulana Azad Medical College, New Delhi, India.

Dr. Pankaj PoddarScientist, Physical & Materials ChemistryDivision, National Chemical Laboratory,

Pune, India.

Dr. Hardev Singh VirkProfessor Emeritus, Eternal

University, Baru Sahib, India.

Dr. Nandini Chatterjee SinghAssociate Professor,

National Brain Research Centre, Manesar, India.

Dr. Shankargouda PatilAsst. Prof., Department of Oral

Pathology, KLE Society's Institute of Dental Sciences, Bangalore, India.

Prof. Subash Chandra MishraProfessor, Metallurgical & Materials

Engineering Department, NIT, Rourkela, India.

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Indian Institute of Technology Madras, India.

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Nurture Earth R&D Pvt LtdMIT Campus, Beed bypass road,

Aurangabad, India.

Dr. Rakesh KumarAssistant Professor,

Department of Applied Chemistry, BIT Mesra, Patna, India.

Dr. Priyavrat TharejaHead, Materials and Metallurgical

Engineering department, PEC University of Technology,

Chandigarh, India.

STM Journal (s) Advisory Board

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Dr. Parammasivam Kanjikovil Mahali Anna University , Madras, India.

Prof. Kalyan Prasad SinhamahapatraHead, Department of Aerospace

Engineering, IIT Kharagpur, India.

Dr Yuwaraj Marotrao Ghugal Department of Applied Mechanics, Govt.

College of Engineering Station Road, Osmanpura,

Aurangabad, India.

Vijayaraja KengaiahProf. , Head, Aeronautical Engg. Dept., P.B. College of Engg., Chennai, India.

Prof. Murthy RL CDepartment of Aerospace Engineering,

Indian Institute of Science, Bangalore, India.

Dr. Subba Raju P.VProf. & Chairman, Aeronautical & Mechanical Engineering Division,

Institute of Aeronautical Engineering, Dundigal, Hyderabad, India.

Dr Ashok K SinghDepartment of Aerospace Engineering,

Defence Institute of Advanced Technology, Girinagar, Pune, India.

Amarjeet SinghDepartment of Computer Applications,

Institute of Environment and Management, Lucknow, Uttar Pradesh, India.

Dr. Tiauw Hiong GoNanyang Technological University,

Singapore.

Dr. Ravishekar KannanComputational Fluid Dynamics (CFD), Research Corporation, United States.

Mr. Ravindranath NayakHead, Aerospace Electronics & Systems

Division, National Aerospace Laboratories (NAL), CSIR Airport Rd,

Kodihalli, Bangalore India.

Dr. M. R. NayakHead, Aerospace Electronics & Systems

Division, and Advisor to Director National Aerospace Laboratories, India.

I take the privilege to present the hard copy compilation for the [Volume 4 Issue (1)] of Journal of

Aerospace Engineering & Technology (JoAET). The intension of JoAET is to create an

atmosphere that stimulates creativeness, research and growth in the area of Aerospace Engineering

& Technology.

The development and growth of the mankind is the consequence of brilliant Research done by

eminent Scientists and Engineers in every field. JoAET provides an outlet for Research findings and

reviews in areas of Aerospace Engineering & Technology found to be relevant for National and

International recent developments & research initiative.

The aim and scope of the Journal is to provide an academic medium and an important reference for

the advancement and dissemination of Research results that support high level learning, teaching and

research in the domain of Aerospace Engineering & Technology.

Finally, I express my sincere gratitude and thanks to our Editorial/ Reviewer board and Authors for

their continued support and invaluable contributions and suggestions in the form of authoring write-

ups/ reviewing and providing constructive comments for the advancement of the journals. With

regards to their due continuous support and co-operation, we have been able to publish quality

Research/Reviesw findings for our customers base.

I hope you will enjoy reading this issue and we welcome your feedback on any aspect of the Journal.

Dr. Archana Mehrotra

Director

STM Journals

Director's Desk

STM JOURNALS

1. Aircraft Design and Development: An Overview Air Commodore (Retd.) SC Gupta 1

2. Comparison of Control Strategies using Soft Computing Techniques for Shunt Active Power Filters in Aircraft Power Utility of 400 Hz Saifullah Khalid, Bharti Dwivedi 9

3. Effect of Damage on the Modal Parameters of Composite PlatesVinaykumar Beelagi, Ramesh S. Sharma 22

4. Handling Qualities-Fighter AircraftAir Commodore (Retd.) SC Gupta 28

ContentsJournal of Aerospace Engineering & Technology

JoAET (2014)© STM Journals 2014. All Rights Reserved

Journal of Aerospace Engineering & Technology ISSN: 2348-7887

Volume 4, Issue 1

www.stmjournals.com

Aircraft Design and Development: An Overview

Air Commodore (Retd.) SC Gupta* Department of Aeronautical Engineering (UG & PG), MVJ College of Engineering, Bangalore, India

Abstract This paper addresses issues related to airworthiness standards, air loads criticality,

handling qualities requirements, and flight testing from the personal experiences of the author. Current control technology has significant impact on airworthiness specification

description. Combination of air loads cases needs judicial selection along with control criteria. Control software can be synthesized in real time for required handling criteria.

Concurrent aeroelasticity needs consideration for optimum aerodynamic design features

that is highlighted herein.

Keywords: airworthiness, aeroelasticity, aircraft

JoAET (2014) © STM Journals 2014. All Rights Reserved

Journal of Aerospace Engineering & Technology ISSN: 2348-7887

Volume 4, Issue 1

www.stmjournals.com

Comparison of Control Strategies using Soft Computing

Techniques for Shunt Active Power Filters in Aircraft

Power Utility of 400 Hz

Saifullah Khalid*, Bharti Dwivedi

Electrical Engineering Department, I. E. T., Lucknow, U. P., India

Abstract Three different control strategies for extracting reference currents for shunt active power

filters optimized using adaptive tabu search and genetic algorithm have been compared and their performance has been evaluated under different load conditions. The

compensation ability of different control strategies will be compared and suggestion will be given for optimum strategy to be used under different loads. Simulation results using

MATLAB have been included.

Keywords: Active power filter (APF), constant instantaneous power control strategy,

sinusoidal current control strategy, synchronous reference frame strategy, genetic

algorithm, adaptive tabu search algorithm, harmonic compensation

JoAET (2014) © STM Journals 2014. All Rights Reserved

Journal of Aerospace Engineering & Technology ISSN: 2348-7887

Volume 4, Issue 1

www.stmjournals.com

Effect of Damage on the Modal Parameters of

Composite Plates

Vinaykumar Beelagi1*, Ramesh S. Sharma

2

Department of Mechanical Engineering, RV College of Engineering, Bangalore, India

Abstract In the present work, the effect of delaminations on the natural frequencies and mode shapes of composite panels has been analyzed, both experimentally and by finite element

technique. Bi-woven glass cloth with epoxy resin as matrix is made use of to prepare the

laminate. Vacuum-bagging method was employed in the fabrication of specimens.

Specimens were prepared with 3 mm thickness and tested for three different boundary

conditions, viz., clamped-free-free-free (C-F-F-F), clamped-free-clamped-free (C-F-C-F) and clamped-clamped-clamped-clamped (C-C-C-C). The traditional “strike method” has

been used to measure the vibration properties. The modal characteristics of the

specimens have been obtained by studying their impulse response. Each specimen has been subjected to impulses through a hard-tipped hammer which is provided with a force

transducer and the response measured through the accelerometer. The impulse and the

response are processed through a computer aided fast Fourier transform (FFT) analyzer. Vibration parameters such as natural frequencies, modal damping and the corresponding

mode shapes were extracted and results are presented. In addition, modal assurance criterion (MAC) has been calculated as a quality indicator for mode shapes evaluated

through experiments.

Keywords: Composite plates, natural frequency, mode shape and modal assurance

criterion

JoAET (2014) © STM Journals 2014. All Rights Reserved

Journal of Aerospace Engineering & Technology ISSN: 2348-7887

Volume 4, Issue 1

www.stmjournals.com

Handling Qualities-Fighter Aircraft

Air Commodore (Retd.) SC Gupta*

Professor & Head, Department of Aeronautical Engineering, MVJ College of Engineering,

Bangalore, India

Abstract Aircraft handling qualities quantify the extent to which the pilot can control the aircraft

and accomplish the task with ease or difficulty. Stick force gradient, recovery rates from maneuvers, layout of controls, case of control operations, and mission accomplishment

form the part of hqs. Current equivalent systems of flight control of fly-by-wire aircraft

with statically unstable airframe aim at meeting maneuver demands and provide required hqs. The hqs criteria are addressed herein largely for the fighter class of aircraft

especially with the unstable airframes.

Keywords: Fighter aircraft, hqs, aircraft

*Author for Correspondence E-mail: satish_chander_gupta@yahoo.co.in