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Forumreport July 2019
Das Magazin des Hubschrauberzentrums Bückeburg July 2019 FORUMreport 31st International Helicopter Forum New Challenges for Vertical Flight High-Tech on Board. High-Performance Gears for the Aviation Industry Liebherr-Aerospace develops, manufactures and supplies high-performance gears and gearbox application systems ranging from high torque up to high speed for the aerospace sector. The company produces complex, high-precision gear parts for main rotor, tail rotor and intermediate gear boxes of helicopters as well as complete accessory gearboxes for various applications. Highly qualified specialists ensure full compliance with the stringent requirements of the aviation industry. Liebherr-Aerospace Lindenberg GmbH Pfänderstraße 50-52 88161 Lindenberg Tel: +49 8381 46-0 E-Mail: [email protected] www.liebherr.com 2017-501_013 AER_019_Hubschrauber_ForumReport_GB.indd 1 29.05.19 14:39 High-Tech on Board. IMPRESSUM EDITORIAL Herausgeber (v.i.S.d.P.) Hubschrauberzentrum e. V. Sablé-Platz 6 D-31675 Bückeburg Pressereferent: Guido Ziese [email protected] fon: +49 (0)572 5533 Liebe Leserin, fax: +49 (0)572 71539 [email protected] lieber Leser! Dies ist eine historische Ausgabe. Nicht, weil wir Einmaliges geschaffen haben, 1. Vorsitzender: Thomas Mallwitz sondern weil es in diesem Jahr so viele „Leuchttürme“ in unserer Historie gibt, [email protected] und man sich nur wundern kann, warum oft im letzten Jahr eines Jahrzehnts so viel Neues vorgestellt wird. Wenn es um die Geschichte des Drehflüglers geht, Redaktion FORUMreport dann denken wir zuerst an Leonardo da Vinci, der vor fünfhundert Jahren ver- Guido Ziese storben ist. Mit seiner „Luftschraube“ hat er Denkwürdiges geschaffen – nicht Kim Braun nur als Logo für unser Hubschrauberzentrum e.V. -
System Identification and Handling Qualities Predictions of an Evtol
System Identification and Handling Qualities Predictions of an eVTOL Urban Air Mobility Aircraft Using Modern Flight Control Methods Robert Niemiec Farhan Gandhi Mark J. S. Lopez Mark B. Tischler Redfern Professor Research Scientist Aerospace Engineer Senior Scientist and MOVE Director Center for Mobility With Vertical Lift U.S. Army Combat Capabilities Development Rensselaer Polytechnic Institute Command Aviation & Missile Center Troy, NY, United States Moffet Field, CA, United States ABSTRACT Modern system identification techniques were used to identify a linear model based on a nonlinear simulation of a concept Urban Air Mobility quadcopter, and compared to a perturbation-based model. These models were used to develop feedback controllers for both variable-pitch and variable-RPM variants of the quadcopter, with the handling qualities requirements determining current requirements for the electric motors. To have sufficient stability margins and bandwidth, the motor time constant for the variable-RPM system must be no greater than 0.122s. Both variable- RPM and variable-pitch systems were limited by the yaw axis, which relies on differential motor torque for control. The introduction of rotor cant alleviated this problem for the variable-pitch vehicle, allowing a 47% reduction in motor weight, relative to the uncanted variable-pitch system. NOTATION Multirotor Control Subscripts 0 Collective A Matrix of stability derivatives 1s Lateral A¯ Reduced matrix of stability derivatives 1c Longitudinal B Matrix of control derivatives 0d Differential (Yaw) B¯ Reduced matrix of control derivatives Imotor Motor Inertia Irotor Rotor Inertia INTRODUCTION i Motor Current Interest in electric Vertical Takeoff and Landing (eVTOL) for Ke Motor Back EMF Constant Urban Air Mobility (UAM), driven by low barriers to entry, Kt Motor Torque Constant has grown dramatically in recent years. -
Strategies for Social Acceptance Raising Interest Around the World
e Flight Journal Quarterly Vol. 2-2018 www.e-flight-journal.com supported by Autonomous eVTOLs take off Strategies for Social Acceptance eFlight Meetings Raising interest around the world Kitty Hawk Flyer The part 103 eVTOL in serial production Electric Aviation, VTOLS, Multicopter, Rotor wings, Fixed Wing, Hybrid Technoilogy, Rule making news, Test Reports * Electric Aviation, VTOLS, Multicopter, Rotorwings, Hybrid Technoilogy, Rule making News, Testreports * * Testreports News, making Rule Technoilogy, Hybrid Rotorwings, Multicopter, VTOLS, Aviation, Electric * Reports Test news, making Rule Technoilogy, Hybrid Wing, Fixed wings, Rotor Multicopter, VTOLS, Aviation, Electric E-Flight. An exciting future. “By entering the field of highly innovative aircraft propulsion technology, we‘re opening a new chapter in E-Mobility. Collaboration with Airbus Group will create new perspectives for our company and open us up even more to disruptive innovation.“ Siemens President and CEO Joe Kaeser siemens.com/innovation Editorial The Autonomous future and the hidden bottleneck of Urban Aerial Mobility When we think about the quickly developing eVTOL and pilot program. More crossover industries including auto- Wthe promising application as a new means of urban trans- mobiles, software, computer chips, electronics are pro- portation, it is obvious to see the potential barriers such as moting of UAM application. More mass media are dis- technologies maturity, regulation and certification, infra- cussing UAM future. The tide is rising and momentum is structures design and construction, production capacity high. When these factors are put together, it appears that and so on. These factors are the difficulties that the eVTOL the hidden bottleneck of the psychosocial factor could be supporters need to tackle with, especially the certification. -
Special Edition P Multico
Electric Aviation, VTOLS, Multicopter, Rotor wings, Fixed Wing, Hybrid Technology, Rule making news, Test Reportsports * Electric Aviation,Aviatatioionn,, VTOLS,VTOLS, MulticoMulticopter,p Rotorwings, Hybrid Technology, Rule making, QuarterlyQu www.e-flight-journal.com 1-2019 Vol. Nexus Bells eVTOL Premiere u aar r tte e rl l y V V ol Cityairbus l . 1-1 20 0 119 9 Special Edition w w www w .e -f f lli gh h tt- jjo o uur nna a ll. co m In shortfinal e flighttraining IBEFA I-6 IBEFA Flight Travel e supported by Let’s meet at AERO Friedrichshafen 2019 Siemens eAircraft is powering new flight concepts. Learn about our innovative propulsion systems and meet us and our partners in Hall A7. April 10 -13, 2019. Official co-exhibitors: APUS, Bye Aerospace, IBEFA, RS.aero and Smartflyer www.siemens.com/eaircraft Anzeige_AERO_DinA4.indd 1 22/03/2019 10:15 editorial eVTOL rules - which way is best? Since late last year the Chinese regulator CAAC has think this is good as the manufacturers now know what Sbeen pumping out a series of new rules and policymak- to expect, but others object that the standard select- ing proposals which may change the landscape of elec- ed is very high like cs-29 for large rotorcraft - which will tric aviation in China and even in the world. These new make the certification and operation very expensive and rules include: lengthy. Other see this even worse , the CS-29 like ap- 1. Much simplified new non-Part 23 light airplane proach is not only costly but potentially impossible, there certification; are no highly automated CS-29 aircraft today and the SC 2. -
Making a Splash Seaplanes Stage a Comeback
AEROSPACE www.aerosociety.com February 2018 February Volume 45 Number 2 Volume MAKING A SPLASH SEAPLANES STAGE A COMEBACK February 2018 Royal Aeronautical Society Royal Aeronautical NORTH KOREA’S MISSILE THREAT OMAN AIR AT THE CROSSROADS SHOULD DRONE PILOTS GET MEDALS? Have you renewed your membership subscription for 2018? Your membership subscription was due on 1 January 2018 and any unpaid memberships will lapse on 31 March 2018 As per the Society’s Regulations, all membership How to renew: benefits will be suspended where a payment for an individual subscription has not been Online: Log in to your account on the Society’s received after three months of the due date. website to pay at: However, this excludes members paying their www.aerosociety.com annual subscriptions by Direct Debits in monthly instalments to October. Additionally, members If you do not have an account, you can register who are entitled to vote in the Society’s AGM will online and pay your subscription straight away. lose their right to vote if their subscription has not been paid. Telephone: Call the Subscriptions Department on: We don’t want you to lose all of your membership +44 (0)20 7670 4315 / 4304 benefits, which include: ⚫ Your monthly subscription to AEROSPACE Cheque: Cheques should be made payable to magazine the Royal Aeronautical Society and sent to the Subscriptions Department at No.4 Hamilton ⚫ Use of your RAeS post nominals as applicable Place, London W1J 7BQ, UK. ⚫ Over 400 global events yearly BACS Transfer: Pay by Bank Transfer (or by BACS) ⚫ Discounted rates for conferences into the Society’s bank account, quoting your name and membership number. -
Aerospace Market White Paper -2019
Aerospace Market White Paper -2019 Aerospace market and technology trends: meeting the needs of today and tomorrow with next-generation cabling services and solutions By: Thierry RODRIGUES , Global Market Director Aerospace & Defense, Nexans Frederic SCHULL , Global Product Manager Aerospace & Defense, Nexans Olivier PINTO , Services and Solutions Director, Nexans Thomas HÄHNER , Technical Director Aerospace, Defense & Medical, Nexans Lei SHI , Strategic Marketing Director Industry OEMs & Partnerships, Nexans CONTENTS INTRODUCTION: INNOVATING WITHIN COST • General trends: commercial aircraft • General trends: defense • Major players and newcomers • Commercial air challenges in an expanding market • Defense challenges: changing budget allocation, new opportunities CABLE-RELATED AEROSPACE TRENDS 1. Lighter weight and fuel efficiency 2. Need to boost electrical power onboard 3. Higher data transmission for flight operations and in-flight entertainment (IFE) 4. Operational safety a. Fire and toxicity b. Synthetic Vision Systems (SVS) c. Airplane Health Monitoring (AHM) 5. Lighter, more reliable and powerful engines 6. Environmental concerns 7. What to expect from a cable manufacturer NEXANS: ADVANCED CABLE SOLUTIONS FOR AEROSPACE • For commercial aviation • For the defense market • Aerospace cable solutions for safety, reliability, efficiency and adaptability • Standards and specifications • A full range of products and solutions • A suite of services designed for aerospace CONCLUSION APPENDIX: SOME NEXANS AEROSPACE HEADLINES AND MILESTONES Synopsis This whitepaper offers a general overview of trends, developments and prognoses for the global aerospace market. In addition, it provides information on Nexans products, solutions and services to serve the developing needs of commercial and defense stakeholders. The document opens with a broad global Aerospace industry update, explains some general trends for commercial airlines and defense, introduces the major players and newcomers, and outlines current and upcoming challenges. -