{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T01:46:56Z","timestamp":1760233616779,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2021,1,29]],"date-time":"2021-01-29T00:00:00Z","timestamp":1611878400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Commercial aircraft have well-designed and optimized systems, the result of a huge experience in the field, due to the large fleet of aircraft in operation. For light, utility, or sports aircraft, with a multitude of shapes, tasks, and construction types, there are different solutions that seek to best meet the requirements of the designed aircraft. In this sense, for a sport plane, an increased maneuverability is desired, and the system that controls flaps and wing must be properly designed. A new flap mechanism command solution is proposed and justified in the paper, for use in sports and recreational aviation, in order to achieve angles of braking greater than 40\u00b0, take-off and landing in a shorter time and over a shorter distance, as well as the gliding of the aircraft in critical flight conditions or when fuel economy is needed. A finite element model is used to verify the optimized command system for the flap and wing and to check if the strength structure of the aircraft is properly designed. The main result consists of the new design command system for flaps and wings and in verifying, by calculation, the acceptability of the new mechanism proposed from the point of view of the strength of the materials.<\/jats:p>","DOI":"10.3390\/sym13020221","type":"journal-article","created":{"date-parts":[[2021,1,29]],"date-time":"2021-01-29T05:53:43Z","timestamp":1611899623000},"page":"221","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["New Command Mechanism of Flaps and Wings of a Light Sport Aircraft"],"prefix":"10.3390","volume":"13","author":[{"given":"Ion-Marius","family":"Ghi\u0163escu","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, Transilvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania"}]},{"given":"Maria Luminita","family":"Scutaru","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Transilvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania"}]},{"given":"Marilena","family":"Ghi\u0163escu","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering, Transilvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2255-7427","authenticated-orcid":false,"given":"Paul Nicolae","family":"Borza","sequence":"additional","affiliation":[{"name":"Department of Computers and Electronics, Transilvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1552-3763","authenticated-orcid":false,"given":"Marin","family":"Marin","sequence":"additional","affiliation":[{"name":"Department of Mathematics and Computers Science, Transilvania University of Brasov, B-dul Eroilor 29, 500036 Brasov, Romania"}]}],"member":"1968","published-online":{"date-parts":[[2021,1,29]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Zhang, R.Q., Noon, C., Winer, E., Oliver, J.H., Gilmore, B., and Duncan, J. (2007, January 4\u20137). Immersive product configurator for conceptual design. Proceedings of the ASME 2007 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, Las Vegas, NV, USA. AIAA-2007-193.","DOI":"10.2514\/6.2007-1931"},{"key":"ref_2","unstructured":"Manning, V.M. (1999). Large-Scale Design of Supersonic Aircraft via Collaborative Optimization. [Ph.D. Thesis, Department of Aeronautics and Astronautics, Stanford University]."},{"key":"ref_3","unstructured":"EASA (2013). Certification Specification and Acceptable Means of Compliance for Light Sport Aeroplanes, CS-LSA, European Aviation Safety Agency."},{"key":"ref_4","unstructured":"Gudmundsson, S. (2014). General Aviation Aircraft Design\u2014Methods and Procedures, Elsevier Inc.. [1st ed.]."},{"key":"ref_5","unstructured":"Warren, F.P. (2009). Mechanics of Flight, Wiley."},{"key":"ref_6","unstructured":"Kermode, A.C. (1996). Mechanics of Flight, Longman Pub Group."},{"key":"ref_7","unstructured":"Roskam, J. (1985). Airplane Design, Part I. Preliminary Sizing of Airplanes, University of Kansas."},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Zipfel, P.H. (2014). Modeling and Simulation of Aerospace Vehicle Dynamics, Revised Edition, AIAA.","DOI":"10.2514\/4.102509"},{"key":"ref_9","unstructured":"Kroes, M.J., Rardon, J.R., and Nolan, M.S. (2013). Aircraft Basic Science, Mac Graw Hill. [8th ed.]."},{"key":"ref_10","unstructured":"Abzug, M.J. (2008). Airplane Stability and Control, Cambridge University Press. [2nd ed.]."},{"key":"ref_11","unstructured":"Postelnicu, A. (1997). Aerodynamic Profiles, Transilvania University of Brasov."},{"key":"ref_12","unstructured":"(2020, September 22). Maintenance Manual Extra 300 LT Aircraft. Available online: https:\/\/www.extraaircraft.com\/docs\/tech-manuals\/MM300LT\/300LT_MM_20150612.pdf."},{"key":"ref_13","unstructured":"(2020, September 22). Maintenance Manual Zlin 142 Aircraft. Available online: http:\/\/aerodromclinceni.ro\/wp-content\/uploads\/2012\/07\/Man-de-zbor-Z142-rev8-lb-eng.pdf."},{"key":"ref_14","unstructured":"(2020, September 22). Maintenance Manual Festival Aircraft. Available online: http:\/\/aerodromclinceni.ro\/wp-content\/uploads\/2016\/01\/Manual-de-utilizare-avioane-Festival.pdf."},{"key":"ref_15","unstructured":"(2020, October 23). Technical Data Flightdesignf2. Available online: https:\/\/flightdesign.com\/flightdesignf2."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"70","DOI":"10.2322\/tjsass.56.70","article-title":"Effect of Finite Element Mesh and Load Location on the Stress and Deflection of a Light Aircraft Metal Wing Structure","volume":"56","author":"Bourchak","year":"2013","journal-title":"Trans. Jpn. Soc. Aeronaut. Space Sci."},{"key":"ref_17","first-page":"1585","article-title":"Improved rigidity of composite circular plates through radial ribs","volume":"233","author":"Itu","year":"2019","journal-title":"Proc. Inst. Mech. Eng. Part L J. Mater.-Des. Appl."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1016\/0093-6413(87)90005-X","article-title":"Elimination of Lagrangian-multipliers","volume":"14","author":"Vlase","year":"1987","journal-title":"Mech. Res. Commun."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"715","DOI":"10.1007\/s00161-018-0722-y","article-title":"Motion equation for a flexible one-dimensional element used in the dynamical analysis of a multibody system","volume":"31","author":"Vlase","year":"2019","journal-title":"Contin. Mech. Thermodyn."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1016\/j.tws.2016.08.020","article-title":"Development of wing deflection assessment methods through experimental ground tests and finite element analysis","volume":"108","author":"Gharibi","year":"2016","journal-title":"Thin-Walled Struct."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1016\/j.jsv.2015.09.010","article-title":"Active vibration control of a full scale aircraft wing using a reconfigurable controller","volume":"361","author":"Prakash","year":"2016","journal-title":"J. Sound Vib."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"104","DOI":"10.1186\/s13661-020-01401-9","article-title":"New analytical method based on dynamic response of planar mechanical elastic systems","volume":"2020","author":"Scutaru","year":"2020","journal-title":"Bound. Value Probl."},{"key":"ref_23","first-page":"568","article-title":"Preliminary Design of a Tandem Seater Light Sport Airplane","volume":"115","author":"Anemaat","year":"2006","journal-title":"SAE Trans. Sect. 1 J. Aerosp."},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Brooks, T., Martins, J., and Kennedy, G. (2020, November 08). Aerostructural Tradeoffs for Tow-Steered Composite Wings. Available online: https:\/\/arc.aiaa.org\/doi\/pdf\/10.2514\/1.C035699.","DOI":"10.2514\/1.C035699"},{"key":"ref_25","first-page":"799","article-title":"Design and analysis of wing of an ultralight aircraft","volume":"6","author":"Bseliss","year":"2017","journal-title":"Int. J. Eng. Sci. Res. Technol."},{"key":"ref_26","unstructured":"(2020, November 09). Design of Ultra Light Aircraft. Available online: https:\/\/lisafea.com\/pdf\/Design_of_Ultralight_Aircraft.pdf."},{"key":"ref_27","unstructured":"Cheol Wan, K., and Kwang Min, L. (2020, November 09). Patent KR20140098600(A)\u20142014-08-08. Airfoil for Ultra Light Plane. Available online: https:\/\/worldwide.espacenet.com\/publicationDetails\/biblio?II=3&ND=3&adjacent=true&locale=en_EP&FT=D&date=20140808&CC=KR&NR=20140098600A&KC=A#."},{"key":"ref_28","unstructured":"Wacker, M., and Soler, B. (2020, November 09). Patent WO0119671(A1)\u20142001-03-22, Weight-Shift-Controlled Airplane. Available online: https:\/\/worldwide.espacenet.com\/publicationDetails\/biblio?II=11&ND=3&adjacent=true&locale=en_EP&FT=D&date=20010322&CC=WO&NR=0119671A1&KC=A1#."},{"key":"ref_29","unstructured":"Chunmao, G. (2020, November 09). Patent CN101214858(A)\u20142008-07-09. Method for Producing Light Aircraft. Available online: https:\/\/worldwide.espacenet.com\/publicationDetails\/biblio?II=9&ND=3&adjacent=true&locale=en_EP&FT=D&date=20080709&CC=CN&NR=101214858A&KC=A#."},{"key":"ref_30","unstructured":"Jinye, P. (2020, November 09). Patent CN209795809(U)\u20142019-12-17. Flap Control Mechanism of Light Sport Aircraft. Available online: https:\/\/worldwide.espacenet.com\/publicationDetails\/biblio?CC=CN&NR=209795809U&KC=U&FT=D&ND=4&date=20191217&DB=&locale=en_EP#."},{"key":"ref_31","unstructured":"Crane, D. (2017). Aviation Mechanic Handbook: The Aviation, Aviation Supplies & Academics, Inc."},{"key":"ref_32","unstructured":"Yechout, T.R. (2014). Introduction to Aircraft Flight Mechanics, American Institute of Aeronautics & Astronautics."},{"key":"ref_33","unstructured":"Peery, D.J. (2011). Aircraft Structures, Dover Publications."},{"key":"ref_34","unstructured":"(2020, December 22). Catia V5 Release 21 Software. Available online: https:\/\/books.google.com.hk\/books?hl=zh-CN&lr=&id=NvP2pThCPzIC&oi=fnd&pg=PA1&dq=Catia+V5+Release+21+Software.&ots=zpsRGDTzQP&sig=-3QEbqUXnoYxEyN1xR4XOF8P4k0&redir_esc=y&hl=zh-CN&sourceid=cndr#v=onepage&q=Catia%20V5%20Release%2021%20Software.&f=false."},{"key":"ref_35","unstructured":"Radu, M. (2005). Experimental and Theoretical Researches on the Flexible Coupling. [Ph.D. Thesis, Transylvania University of Brasov]."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/13\/2\/221\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T05:17:00Z","timestamp":1760159820000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/13\/2\/221"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2021,1,29]]},"references-count":35,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2021,2]]}},"alternative-id":["sym13020221"],"URL":"https:\/\/doi.org\/10.3390\/sym13020221","relation":{},"ISSN":["2073-8994"],"issn-type":[{"type":"electronic","value":"2073-8994"}],"subject":[],"published":{"date-parts":[[2021,1,29]]}}}