A seminar on ‘Airframes – Analysis& Design’ was conducted on 26th April 2018, organized by the Dept. of Aeronautical Engineering at Smt. Rajalakshmi Jayaraman Seminar Hall. MVJCE, Bangalore. The inauguration function started at 10:20 AM. A committee of students were given the responsibility of compering, it was started with a prayer song by Ms. Siddika Raj, 6thsem, AE. Later the dignitaries on the stage, the guest of honor Mr. Kanchan Biswas, Ex – Director CEMILAC, Tech Consultant at NAL, Adjunct faculty Jain University. Dr. N. Gunasekaran, Principal, MVJCE, Dr. A. Pasupathy, Dean, MVJCE and Prof. S. C. Gupta, Head, Dept. of Aeronautical Engineering, were called upon to seek the blessings from the lord almighty by lighting the lamp.
Later, Prof. S. C. Gupta has given an elaborate talk on the importance and usefulness of the seminar. He said that the subject is extremely relevant when the airplane inventory all over the world is aging and there is continued effort from OEMs to enhance the life of these planes especially when these are going through the burden of increasing interfaces with the state-of-the-art avionics and even replacement of engines with higher rated ones. It is the airframe that takes the entire beating. The compounding aero-elastic effects, newer material technologies and replacement of metal parts with developing composites that are in favor of weight reduction, were several issues related to this seminar. By this the inauguration ceremony was concluded and the scheduled talks by the invited speakers started.
The first talk was delivered by Mr. Kanchan Biswas Ex – GroupDirector of CEMILAC. He spoke about Design Standards and Airworthiness related structural practices Which gave some insights about different standards and formal practices in the industry the engineer should adhere to and the importance of safety concerns. This was followed by a lecture from DR. C. N. Sathyanarayana, Senior Principal Scientist fromNational Aerospace Laboratories, Bangalore. This lecture was about Experimental Structural Dynamics wherein he largely covered the vibrations and ground vibration tests. The talk was rather a thought provoking session for the students as the speaker invoked a sense of discussion through his questions and the students’ engagement made it a true discussion towards the end of the talk.
It was followed by lecture on stress analysis and sizing by Mr. Rajbharathfrom Airframe Aero-designs Pvt. Ltd., Bangalore. The talk was on 3-D modeling, fabrication and testing of parts towards finished product, gripper assembly design and sensors for grippers assembly. It got extended tothe topics of CFD analysis for estimation of load, design of winglets for drag reduction. After this talk the gathering adjourned for lunch break at 01:00 PM.
The seminar resumed in the afternoon at 02:00 PM with the lecture of Mr. Sharadanand Shivaprasad, Tech Lead Engineer from UTC Aerospace, Bangalore. His talk was on Fatigue and Life assessment, which covered certain real life practical situations, infact the talk started with a very interesting story of De – Havilland Comet’s tragic accidents, which stood as an example of poor analysis of structural fatigue. He also extended the talk to Regulations governing fatigue, factors affecting fatigue and parameters for fatigue life analysis.
It was followed by the final lecture of the day by Mr. B Girish, Scientist/ Engineer ‘F’ from Aeronautical Development Agency, DRDO, Bangalore. His talk was on Specifications for load description, FEM modeling for sizing, aero-elastic test models, static aero-elastic analysis, frame/bulk head analysis, production of drawings and in-service problems. The extensive experience of Mr. G. Girish’s on the development of LCA Tejas was shared on the occasion, through a video which covered different ground tests carried on the aircraft during its development stage. By this the invited talks were completed.
At the end of each talk Prof. S. C. Gupta has felicitated the speaker with a memento as a token of appreciation. At the valedictory function Ms. SabeehaParveen, Asst. Prof., Dept. of Aeronautical Engineering, delivered the vote of thanks. The seminar was attended by the faculty, UG and PG students from Aeronautical Engineering Dept. numbering around 300.