R. C. Airships developed in IIT Bombay Prof. Rajkumar S. Pant - PowerPoint PPT Presentation

R. C. Airships developed in IIT Bombay Prof. Rajkumar S. Pant Aerospace Engineering Department IIT Bombay AE-664 Lighter-Than-Air Systems Capsule-1

Genesis of LTA Systems @ IIT Bombay PADD AE-664 Lighter-Than-Air Systems Capsule-1

Program on Airship Design & Development  Carried out from 2001 to 2003  Seven Member Team headed by Prof. S. K. Sane, IITB  4 from IITB & 3 from Industry ( ADRDE, ADA, AAI)  One Independent Consultant  Establish Techno-Economic Feasibility  Operation, Design & Development of Airships in India  Promote Usage  Multiple roles; Pax/Cargo, CasEvac, Tourism, ………  Develop Technology Base  Enhance existing expertise in Parachutes & Aerostats  Explore avenues of Joint Development  National & Global Partners  Private Sector participation AE-664 Lighter-Than-Air Systems Capsule-1

Tasks Completed in PADD  Project Definition Report  Design and Development of Two Airships  Cargo and Passengers in Lower Himalayas, UK  Demo airship & PaxCargo Airship  Payload = 100 kg & 1500 kg  @ Hot (ISA+15) and High (3500 m) conditions o Operation at lower altitudes also explored  Feasibility Report for leasing a few airships AE-664 Lighter-Than-Air Systems Capsule-1

Methodology for Airship initial sizing  Estimate Volume (or Payload) of non-rigid a/s  Meeting user-specified and operating reqmt.  Useful for…  Conceptual design studies  Determine sensitivity of operational requirements on configuration related parameters  Investigating what-if scenarios  Carrying out MDO of an airship system AE-664 Lighter-Than-Air Systems Capsule-1

Key Publications  Methodology for Determination of Baseline Specifications of a Non-Rigid Airship  Paper AIAA-2003-6830, Proceedings of AIAA's 3 rd Annual Aviation Technology, Integration, and Operations (ATIO) Forum, Denver, Colorado, Nov. 17-19, 2003.  Technical Note, AIAA Journal of Aircraft, Vol. 45, No. 6, pp. 2177-2182, Nov-Dec 2008. AE-664 Lighter-Than-Air Systems Capsule-1

Key Output of Pax ax/ C / Cargo Air Airship ip PADD Demo emo Airsh ship Demo emo Airsh ship Sus uspensi pension c n car AE-664 Lighter-Than-Air Systems Capsule-1

Design, Fabrication & Flying REMOTELY CONTROLLED AIRSHIPS AE-664 Lighter-Than-Air Systems Capsule-1

Micro , Mini and Macro R C Airships Parameter MICRO MINI MACRO Length (m) 4.99 6.42 8.00 Envelope Volume (m 3 ) 6.8 8.6 26.6 Payload (kg) 1.0 3.0 6.0 Endurance (min) 15 18 25 Max. Speed (m/s) 7 10 12 Engine Power (HP) 0.41 0.60 2.0 AE-664 Lighter-Than-Air Systems Capsule-1

Mic icro RC o RC Air Airship p (2002 2002) Volume = 6.8 m 3 Length = 5 m Engine Displacement = 2.49 cc Power = 0.41 BHP @ 17000 RPM Payload = ~ 1 kg Max. Speed = 25 km/h Endurance = 15 min with 200 ml fuel No. of Flight days = 4 at IIT Gymkhana First Flight Video AE-664 Lighter-Than-Air Systems Capsule-1

Min ini RC RC Air Airshi hip (200 003) Length = 5 m Volume = 8.64 m 3 Payload = ~3.0 kg Max. Speed = 36 kmph Endurance = 15 min with 300 ml fuel No. of Flight days = 6 at Pune, Bangalore, Coimbatore Pune Trial Video AE-664 Lighter-Than-Air Systems Capsule-1

Moo Mooring Mas Mast Gimbal Mechanism Mooring Mast in Use AE-664 Lighter-Than-Air Systems Capsule-1

Macro RC o RC Air Airship p (2009 2009) Length = 8 m Volume = 26.59 m 3 Payload = 6.0 kg Flight Altitude = SASE, Manali, 6572 ft Engine Displacement = 10.0 cc Power = 2 BHP @ 14000 RPM Flight Video On-Board Camera View AE-664 Lighter-Than-Air Systems Capsule-1

Jus ust af after ter releas release e at at SASE H Helipad elipad 14 AE-664 Lighter-Than-Air Systems Capsule-1

Aim of the project DEVELOPMENT OF AUTONOMOUS OUTDOOR AIRSHIP AE-664 Lighter-Than-Air Systems Capsule-1

Need for Autonomous Airship  Data collection applications which require long endurance flight  Ability to Hover at a location  Independent of LOS of Flyer or ground station AE-664 Lighter-Than-Air Systems Capsule-1

Objectives  Investigate the efficacy of  outdoor remotely controlled airship  autonomous airships o as a platform for aerial observation and data collection  Obtain an insight into issues related to  operational capabilities  limitations AE-664 Lighter-Than-Air Systems Capsule-1

Tasks to be done  Methodology for airship conceptual sizing and design  6-DOF dynamic model of the airship  suitable for controller design & computer simulation  Study strategies for autonomous control system  Implement the best one an airship AE-664 Lighter-Than-Air Systems Capsule-1

Baseline specifications Parameter Value Net lifting capacity @ sea-level 2 kg Max. permissible wind for safe operation 10 m/s Max. speed 15 m/s Deployment altitude 200 m Cruising altitude (AGL) 100 m Endurance at cruising condition 30 min Control Range 1 km AE-664 Lighter-Than-Air Systems Capsule-1

Outdoor Autonomous Airship FABRICATION AND SYSTEM INTEGRATION AE-664 Lighter-Than-Air Systems Capsule-1

Gondola Design and Fabrication CAD Model Fabricated Gondola AE-664 Lighter-Than-Air Systems Capsule-1

System Integration & Testing Fins on Envelope Nose Battens Yaw motor on Fin AE-664 Lighter-Than-Air Systems Capsule-1

Fully Assembled Airship AE-664 Lighter-Than-Air Systems Capsule-1

Attaching Nose Battens to Mast AE-664 Lighter-Than-Air Systems Capsule-1

Field Trials (29 & 30 Nov 2013) AE-664 Lighter-Than-Air Systems Capsule-1

The Test Crew Jônatas Sant’ Anna Santos, ALTAVE AE-664 Lighter-Than-Air Systems Capsule-1

Student Projects INDOOR & OUTDOOR AIRSHIPS AE-664 Lighter-Than-Air Systems Capsule-1

KVPY Summer Project I AE-664 Lighter-Than-Air Systems Capsule-1

KVPY Summer Project I Rahul Sangole, PVG CoET, Pune Rohit Belapurkar, MIT, Pune Kshitija Deshpande PIET, Pune June-August 2004 Demo Flight, August 2004 AE-664 Lighter-Than-Air Systems Capsule-1

RC Capsule Airship Shailesh Agashe, Ketan Palashikar, Gaurav Nakanekar, Rahul Sangole PVG’s COET, Pune, 2006 Demo Flight, March 2006 Speed & eed & Direction on Cont ontrol Spot tu Sp t turn AE-664 Lighter-Than-Air Systems Capsule-1

Student Projects IN INDO DOOR A R AIR IRSHI HIPS AE-664 Lighter-Than-Air Systems Capsule-1

TAMUBlimp Project (2011) AE-664 Lighter-Than-Air Systems Capsule-1

Demonstration Flight AE-664 Lighter-Than-Air Systems Capsule-1

Semi-Outdoor Blimp ZEPHYR 2013 BLIMP AE-664 Lighter-Than-Air Systems Capsule-1

Indoor Airship 2013 AE-664 Lighter-Than-Air Systems Capsule-1

Lift Test AE-664 Lighter-Than-Air Systems Capsule-1

Semi-outdoor Airship Design Inputs Payload 0.3 kg Fabric Density 190 gsm Shape Zhiyuan Output Support Equipment 1.0 kg Length 4.2 m 3.6 m 3 Volume AE-664 Lighter-Than-Air Systems Capsule-1

Test Flight (Indoor) 1 st Feb 2013: Structures Lab IITB AE-664 Lighter-Than-Air Systems Capsule-1

Test Flight (Semi-Outdoor) 2 nd Mar 2013: Victor Menezes Convention Centre IITB AE-664 Lighter-Than-Air Systems Capsule-1

Recent Project BIOMIMETIC AIRSHIP AE-664 Lighter-Than-Air Systems Capsule-1

Existing Biomimetic LTA Systems 41 AE-664 Lighter-Than-Air Systems Capsule-1

Other Biomimetic LTA systems 42 AE-664 Lighter-Than-Air Systems Capsule-1

Selection of Shape  Performance  Fineness ratio  Swimming styles Butterfly fish AE-664 Lighter-Than-Air Systems Capsule-1

Design Issues in Biomimetic Systems  Performance - Fin shapes - Swimming style 44 AE-664 Lighter-Than-Air Systems Capsule-1

LTA Systems Laboratory, IIT Bombay INDOOR BIOMIMETIC AIRSHIP AE-664 Lighter-Than-Air Systems Capsule-1

Key Fabrication Issues • Material= Nano-clay coated polyester • Shape = Butterfly Fish • Joining Process = Heat Sealing AE-664 Lighter-Than-Air Systems Capsule-1

Assembled Airship AE-664 Lighter-Than-Air Systems Capsule-1