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Smart Skins

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Published in: Mechanical
7,420 Views

Aerospace Applications

Manjunatha C / Bangalore

7 years of teaching experience

Qualification: B.E.(Mechanical Engineering) & Pursuing M.Tech.

Teaches: Mathematics, Physics, Mechanical, Production

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  1. Department of Mechanical Engineering Post Graduate Studies Application of Smart Skins in Aerospace Industry MANJUNATHA C R IB116MMD05 Department of Mechanical Engineering Bangalore Institute of Technology, Bangalore Guide: Mr. CHETAN B Assistant Professor Department of Mechanical Engineering Bangalore Institute of Technology, Bangalore M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  2. 1 Department of Mechanical Engineering Post Graduate Studies Smart Skin M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  3. Department of Mechanical Engineering Post Graduate Studies Presentation overview Antroduction to smart systems >Classification of smart materials > Smart skins >Components of smart structures >Smart skins in Aerospace industry >Examples > Conclusion M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  4. Department of Mechanical Engineering Post Graduate Studies Introduction to Smart systems >Smart systems consist of sensors and actuators that are either embedded in or attached to the system containing central control and command unit to form an integral part of it. >Smart or intelligent materials are materials that have the intrinsic and extrinsic capabilities, first to respond to stimuli and environmental changes and second to activate their functions according to these changes. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  5. Department of Mechanical Engineering Post Graduate Studies + Stimulus —stress, strain, light, electric field, temperature and pressure, etc. *Response motion or change in optical properties, modulus, surface tension, piezoelectricity etc. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  6. Department of Mechanical Engineering Post Graduate Studies Classification of smart materials QActively Smart They posses the capacity to modify their geometric or material properties under the application of electric, thermal or magnetic fields, thereby acquiring an inherent capacity to transduce energy. •Piezoelectric •Magnetostrictive •Shape memory alloys M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  7. Department of Mechanical Engineering Post Graduate Studies • Electro-Rheological fluid, etc. • They can be used as force transducers and actuators QPassively Smart Those smart materials that are not active are called passively smart materials. Although smart, they lack the inherent capability to transduce energy. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  8. Department of Mechanical Engineering Post Graduate Studies Smart Skins SMART SKIN What is a Smart Skin? It is predicted that by 2020 the Internet will have 50 billion non-human users (devices). This burgeoning growth is being driven by the trend towards ever more miniaturised electronics and wireless devices. This has seen the development of 'motes' which are complete computing packets that contain sensors, processing. communication ability and power. Incredibly, motes are now approaching the size of a grain of rice. By embedding thousands of motes across a surface, we can utilize the power of numbers to create a skin of unprecedented sensory capability. STRUCTURAL HEALTH MONITORING Straül Sensory informaton is capturea tne Smart Skin, Üansmittea wireewy to a remote operator ana dispcayea on me user intertace; me panel on tne user intertace cnanges in real-time witn tne pnyscal panel; Areas ot excessive neat ana are oetectea ana disptayea on tne pane image; Air now directon is snown as arrow aross tne pane- LIVE AERODYNAMIC DATA ENVIRONMENTAL SENSING Every air platform could be encapsulated by an incredible cloak of tiny computers that collaboratively sense and understand the surrounding environment. ...forming a 'Smart Skin'. Temperature M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  9. Department of Mechanical Engineering Post Graduate Studies Smart skins in Aerospace industry Central Control Unit Vibration Damping Impact Detection Flutter Suppression Flaps Positioning Cabin Noise Reduction Engine Monitoring Some possible locations where aircraft can become SMART M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  10. Department of Mechanical Engineering Post Graduate Studies >Smart skin is a large-area , flexible array of sensors with data processing capabilities, which can be used to cover the entire surface of a machine or even a part of a human body. >Depending on the skin electronics, it endows its carrier with an ability to sense its surroundings via the skin's proximity, touch, pressure, temperature , chemical /biological, or other sensors. Aerospace products such as rockets, satellites and aircrafts are typically monocoque shell-like structures featuring a thin skin whose structural integrity is generally mission-critical. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  11. Department of Mechanical Engineering Post Graduate Studies > The safe and optimal operation of the vehicle is dependent upon the environment to which the skin is subjected and also the state of degradation of the skin. At is therefore, of critical importance that the condition of this membrane be carefully monitored and maintained within specified bounds in order that the system function properly. > The behavior of smart skins has triggered the evolution of an embryonic technology which typically would feature actuators, sensors, data-links and microprocessors. This class of sophisticated structures has been termed 'smart skins ' M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  12. Department of Mechanical Engineering Post Graduate Studies Components of smart structure: The basic five components of a smart structure are Data Acquisition (tactile sensing): the aim of this component is to collect the required raw data needed for an appropriate sensing and monitoring of the structure. >Data Transmission (sensory nerves): the purpose of this part is to forward the raw data to the local and/or central command and control units. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  13. Department of Mechanical Engineering Post Graduate Studies >Command and Control Unit (brain): the role of this unit is to manage and control the whole system by analyzing the data, reaching the appropriate conclusion, and determining the actions required. >Data Instructions (motor nerves): the function of this part is to transmit the decisions and the associated instructions back to the members of the structure. Action Devices (muscles): the purpose of this part is to take action by triggering the controlling devices/ units. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  14. Department of Mechanical Engineering Post Graduate Studies Smart Skin concept in Aeroplane NASA A New Multi-Functional "Smart Skin" Concept SansEC Sensor Smart Skin SansEC Sensor Array The concept is to apply an array of SansEC sensors to an aircraft surface forming a "Smart Skin" layer on the composite. Lightning Protection, Enhanced Shielding Effectiveness, Damage Detection and Diagnosis functions to composites. M.Tech in Machine Design BATCH - 2016 - 2018 2015AmeoæsATC MANJUNATHA C R IB116MMD05
  15. Department of Mechanical Engineering Post Graduate Studies Smart Aircraft Wing M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  16. Department of Mechanical Engineering Post Graduate Studies Smart skin for Lightning Strike Protection A SansEC "Smart Skin" for Lightning Strike Protection M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  17. 1 Department of Mechanical Engineering Post Graduate Studies Smart Skin for Damage Detection A SansEC "Smart Skin" for Damage Detection M.Tech in Machine Design BATCH - 2016 - 2018 Lightning induced Damage Insult 15 2015 Americas ATC MANJUNATHA C R IB116MMD05
  18. Department of Mechanical Engineering Post Graduate Studies Morphing aircraft structures: > The ultimate structure for a smart structure is the morphing structure that can reconfigure shape, stiffness or control to achieve a new performance objective. A Morphing Air Structure is a seamless, aerodynamically efficient, aerial vehicle capable of radial shape change and able to generate superior performance over static design. At is an individual aircraft that can service multiple mission roles with variable geometric wings, fuselage or even propulsion system. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  19. Department of Mechanical Engineering Post Graduate Studies Conclusion This presentation has reviewed applications of 'smart skins' technology to aerospace industry. The application includes lightning strike protection, damage detection, smart wings, aircraft health monitoring, morphing aircraft structures etc.. The applications of smart structures shown the capability to address difficult dynamic structural problems with novel techniques with positive results. M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05
  20. Department of Mechanical Engineering 1 Post Graduate Studies THANK YOU M.Tech in Machine Design BATCH - 2016 - 2018 MANJUNATHA C R IB116MMD05

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