Relevant bibliographies by topics / Rotari

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Rotari'

Author: Grafiati
Published: 14 March 2023
Last updated: 31 July 2025

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Journal articles on the topic "Rotari"

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Hakim, Fiqri Muhamad, I. Wayan Tika, and Pande Ketut Diah Kencana. "Efisiensi Kinerja Traktor dengan Bajak Rotari untuk Pengolahan Tanah Tahap Pertama pada Subak di Kabupaten Tabanan." Jurnal BETA (Biosistem dan Teknik Pertanian) 11, no. 2 (2022): 364. http://dx.doi.org/10.24843/jbeta.2023.v11.i02.p14.

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Abstrak
 Efisiensi kinerja merupakan perbandingan antara kapasitas kerja aktual dengan kapasitas kerja teoritis yang dinyatakan dalam persen (%). Tujuan dari penelitian ini adalah untuk mengetahui efisiensi kinerja traktor rotari untuk pengolahan tanah tahap pertama pada subak di Kabupaten Tabanan dan menjadi data acuan untuk penelitian selanjutnya. Metode penelitian menggunakan metode deskriptif kuantitatif dimana pengambilan data dilakukan melalui survei, wawancara dan pengukuran langsung dilapangan yang disajikan secara deskriptif. Spesifikasi traktor rotari yang digunakan adalah trakt
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Aman, Wilson Palelingan, Abadi Jading, and Mathelda K. Roreng. "Konstruksi Dan Kinerja Prototipe Alat Pengering Pati Sagu Tipe Rotari Bersumber Panas Biomassa." Agritechnology 1, no. 1 (2019): 23. http://dx.doi.org/10.51310/agritechnology.v1i1.7.

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Penelitian mengenai pengeringan pati sagu menggunakan alat pengering tipe rotari dengan sumber panas pengering berasal dari pembakaran biomassa melalui tungku telah dilakukan. Tujuan penelitian ini adalah untuk merancang prototipe alat pengeringan pati tipe rotari (rotary dryer) dengan panas pengering bersumber dari tungku pembakaran biomass, menguji kinerja alat pengering dan untuk mengetahui mengetahui sifat-sifat fisikokimia pati hasil pengeringan. Penelitian ini dilakukan dengan metode perancangan dan eksperimen. Hasil dari penelitian ini adalah berupa prototipe alat pengering pati tipe ro
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Kahar, Kahar. "Desain Mesin Pemotong Rumput Tipe Rotari Dengan Mesin Penggerak Motor Listrik." Jurnal Pertanian Terpadu 6, no. 2 (2018): 76–87. http://dx.doi.org/10.36084/jpt..v6i2.169.

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Mesin pemotong rumput tipe rotari adalah pemotong rumput yang memotong berdasarkan benturan (impact) pisau terhadap rumput (free cutting) dengan kecepatan putaran tinggi. Penelitian ini dilaksanakan pada bulan Maret sampai Juli 2017. Tujuan penelitian adalah membuat desain mesin pemotong rumput tipe rotari dengan motor penggerak motor listrik serta mengetahui efisiensi dan kebutuhan daya alat dengan metode eksperimen yaitu melakukan uji coba alat yang telah di desain sehubungan dengan rancangan structural dan rancangan funsional dan menganalisis data uji coba alat yang diperoleh untuk mengetah
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Panggabean, Tamaria, Ari Hayati, and Arjuna Neni Triana. "Uji Kinerja Pengeringan Gabah Menggunakan Pengering Rotari Berbahan Bakar Sekam Padi." Jurnal BETA (Biosistem dan Teknik Pertanian) 12, no. 1 (2024): 197. http://dx.doi.org/10.24843/jbeta.2024.v12.i01.p22.

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Abstrak Penelitian ini dilatarbelakangi oleh kelemahan pengeringan gabah menggunakan sinar matahari atau penjemuran. Kelemahan pengeringan menggunakan sinar matahari antara lain memerlukan waktu berhari-hari dan tempat yang luas. Penelitian ini bertujuan untuk menguji mesin pengering rotari yang sudah dirancang untuk mengeringkan gabah. Metode penelitian ini adalah eksperimental yang meliputi tahap pendekatan rancangan, rancangan struktural dan rancangan fungsional, setelah itu dilakukan pengujian kinerja pengering rotari. Hasil yang diperoleh pada penelitian ini adalah alat pengering rotari y
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Tika, I. Wayan, Ida Ayu Gede Bintang Madrini, Sumiyati Sumiyati, Ni Nyoman Sulastri, and Mentari Kinasih. "Efisiensi Kinerja Traktor Singkal dan Rotari pada Proses Nyacahin Di Subak." Jurnal BETA (Biosistem dan Teknik Pertanian) 12, no. 2 (2024): 351. http://dx.doi.org/10.24843/jbeta.2024.v12.i02.p17.

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Abstrak Kegiatan pengolahan tanah di subak dapat mengurangi perkembangan tanaman pengganggu (gulma), dapat menggemburkan tanah, dan mengondisikan sifat biofisik tanah. Pengolahan tanah pada kedalaman tertentu mampu memberikan hasil yang cocok bagi pertumbuhan dan perkembangan tanaman. Saat ini pengolahan tanah sawah pada subak di Bali umumnya menggunakan traktor tangan baik yang berkomplemen bajak singkal maupun bajak rotari. Jika menggunakan bajak singkal tahapan pengolahan tanah meliputi makal (pembalikan tanah), nyacahin (memperkecil ukuran bongkahan tanah), dan selanjutnya ngasahan (merata
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Tika, I. Wayan, Sumiyati Sumiyati, Ni Nyoman Sulastri, Ida Ayu Gede Bintang Madrini, and Mentari Kinasih. "Efisiensi Kinerja Traktor Singkal dan Traktor Rotari pada Pengolahan Tanah di Subak." Jurnal BETA (Biosistem dan Teknik Pertanian) 11, no. 1 (2023): 10. http://dx.doi.org/10.24843/jbeta.2023.v11.i01.p02.

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 Sebelum petani Subak mengenal traktor, pengolahan tanah dilakukan dengan menggunakan cangkul atau bajak singkal yang ditarik oleh ternak. Pengolahan tanah dengan traktor yang dilengkapi dengan komplemen bajak singkal atau bajak rotari tidak dapat dihindari terjadinya kasus tumpang tindih (overlap) hasil pengolahan, sehingga hasil tanah olahan menjadi tidak efisien. Tumpang tindihnya hasil pengolahan tersebut terlihat dari perbedaan hasil tanah yang diolah. Berdasarkan kondisi tersebut diperlukan kajian efisiensi pengolahan tanah pada Subak dengan menggunakan traktor singkal dan t
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Agusman, Agusman, Fateha Fateha, Asmanah Asmanah, and Niswatin Ulya. "IDENTIFIKASI DAN PERHITUNGAN KETIDAKPASTIAN PENGUJIAN VISKOSITAS KARAGINAN MENGGUNAKAN VISKOMETER ROTARI." Jurnal Standardisasi 23, no. 3 (2021): 295. http://dx.doi.org/10.31153/js.v23i3.940.

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<p>Viskositas merupakan salah satu karakteristik mutu karaginan yang diprasyaratkan dalam SNI Karaginan <span style="text-decoration: underline;">8391-1:2017</span>. Pada pengukuran viskositas tersebut, laboratorium uji dan laboratorium sertifikasi harus melakukan evaluasi perhitungan ketidakpastian pengukuran sesuai yang disarankan dalam SNI ISO/IEC 17025:2017. Tujuan dari penelitian ini adalah untuk evaluasi ketidakpastian pengukuran viskositas karaginan menggunakan viskometer rotari. Pada penelitian ini, sumber ketidakpastian berhasil diidentifikasi menggunakan diagram Ish
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SATRIATAMA, RISNANDA, DENNY DARLIS, and PORMAN PANGARIBUAN. "Sistem Kontrol Troli Rotari sebagai Tempat Penitipan Barang Otomatis menggunakan Fuzzy Logic." ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika 8, no. 3 (2020): 575. http://dx.doi.org/10.26760/elkomika.v8i3.575.

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ABSTRAKTroli rotari memerlukan sistem kontrol untuk mengatur rak ke posisi yang diinginkan. Penelitian ini berfokus pada sistem kontrol posisi rak menggunakan metode Fuzzy Logic Controller (FLC) dengan beban berbeda dari setiap pengguna. Masukan pada sistem kontrol FLC adalah error dan delta error dari sensor rotary encoder. Keluaran dari FLC adalah Pulse Width Modulation yang digunakan untuk mengontrol kecepatan motor DC. Hasil penelitian dari tiga variasi fungsi keanggotaan keluaran dengan beban pada satu rak, pengujian tanpa beban memiliki settling time antara 3,11 s hingga 3,24 s dan error
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Perdana, Mastariyanto, Hafni Hafni, Lusi Yulianti, et al. "PERFORMANSI ALAT PENGASAPAN IKAN DENGAN SISTEM ROTARI HORIZONTAL." Jurnal Teknologi dan Vokasi 2, no. 1 (2024): 69–77. https://doi.org/10.21063/jtv.2024.2.1.69-77.

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Salah satu teknik pengawetan ikan yang sangat banyak dimanfaatkan pada saat ini adalah teknik pengasapan. Pada umumnya proses pengasapan ikan masih secara tradisional dan menggunakan oven konvensional. Metode tersebut merupakan cara yang mudah untuk melakukan pengasapan ikan. Tujuan penelitian ini adalah untuk mengetahui efisiensi alat pengasapan ikan dengan menggunakan sistem rotari horizontal. Alat pengasapan ikan ini terdiri dari ruang pengasapan, tungku pembakaran, dudukan lele sistem rotari, motor DC, roda gigi, dan rantai. Kapasitas alat pengasapan ikan system rotari ini adalah 9 kg ikan
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Perdana, Mastariyanto, Hafni Hafni, Lusi Yulianti, et al. "PERFORMANSI ALAT PENGASAPAN IKAN DENGAN SISTEM ROTARI HORIZONTAL." Jurnal Teknologi dan Vokasi 2, no. 1 (2024): 69–77. http://dx.doi.org/10.21063/jtv.2024.2.1.8.

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Salah satu teknik pengawetan ikan yang sangat banyak dimanfaatkan pada saat ini adalah teknik pengasapan. Pada umumnya proses pengasapan ikan masih secara tradisional dan menggunakan oven konvensional. Metode tersebut merupakan cara yang mudah untuk melakukan pengasapan ikan. Tujuan penelitian ini adalah untuk mengetahui efisiensi alat pengasapan ikan dengan menggunakan sistem rotari horizontal. Alat pengasapan ikan ini terdiri dari ruang pengasapan, tungku pembakaran, dudukan lele sistem rotari, motor DC, roda gigi, dan rantai. Kapasitas alat pengasapan ikan system rotari ini adalah 9 kg ikan
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Dissertations / Theses on the topic "Rotari"

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Giannotti, Filomena. "Ombre solenni. Personaggi tardoantichi nella letteratura contemporanea." Doctoral thesis, Università di Siena, 2006. http://hdl.handle.net/11365/1207783.

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L'elaborato tratta la presenza di importanti personaggi dell'età imperiale nella cultura contemporanea, in particolare nella narrativa e nel cinema: PARTE PRIMA - FILOSOFI AL POTERE. Capitolo I - Marco Aurelio. Capitolo II - Giuliano l'Apostata. PARTE SECONDA - IMPERATORI 'MINORI'. Capitolo I - Eliogabalo. Capitolo II - Romolo Augustolo. PARTE TERZA - RE BARBARI. Capitolo I - Attila. Capitolo II - Rotari. PARTE QUARTA - PADRI DELLA CHIESA. Capitolo I - Ambrogio. Capitolo II - Girolamo. Capitolo III - Agostino. PARTE QUINTA - SCRITTORI FRA LETTERATURA E IMPEGNO POLITICO. Capitol
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Walsh, Brendan Walsh Patrick. "Rotary." NCSU, 2009. http://www.lib.ncsu.edu/theses/available/etd-12052008-145205/.

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Matos, Catherine Anne Moseley. "Download reduction on a wing-rotor configuation." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/12058.

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Xie, Lihan. "Suivi numérique des bifurcations pour l'analyse paramétrique de la dynamique non-linéaire des rotors." Thesis, Lyon, 2016. http://www.theses.fr/2016LYSEI018/document.

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Au cœur des moyens de transport, de transformation d'énergie, et de biens d'équipements, les machines tournantes peuvent avoir des comportements dynamiques complexes dus à de multiples sources de non linéarités liées aux paliers hydrodynamiques, à la présence de fissures, aux touches rotor-stator, ... Des phénomènes comme les décalages fréquentiels et donc de vitesses critiques, les cycles d'hystérésis avec sauts d'amplitudes, le changement brutal du contenu fréquentiel des réponses, sont des expressions de ces comportements. Résoudre les équations du mouvement induites par des modélisations a
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Huo, Chao. "Analyse numérique et expérimentale d’un doublet de rotors contrarotatifs caréné au point fixe." Thesis, Toulouse, ISAE, 2012. http://www.theses.fr/2012ESAE0010/document.

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Cette étude se propose d’analyser le comportement du double rotor contra-rotatif caréné dans lecadre des échelles réduites des microdrones, pour exploiter le potentiel d’amélioration desperformances stationnaires des rotors libres. La demande d’une performance propulsive de hautniveau, alors que les échelles sont très réduites constitue un véritable défi scientifique. De façongénérale, par rapport au rotor libre, l’ajout de la carène permet de piloter la contraction del’écoulement et offre un potentiel de poussée de carène. La tuyère par sa condition d’adaptationpilote le débit entrant à puiss
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Alnakar, Raran, and Danilo Catovic. "Rotary parking system." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295808.

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Automatic parking systems are intended to save a lot ofspace and create a more favourable parking experience. In this thesis the main goal was to create a functional and user-friendly rotary parking system. The system consistsof a framework, DC-motor, driveline, ultrasonic distance sensor and platforms. Most of the construction consists of plastic, the remaining parts are made of metal. The system was evaluated using two experiments, one that measured the speed of the system and the other one measuring the level of accuracy. After the first experiment, it was concluded that the system works we
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Alnakar, Rayan, and Danilo Catovic. "Rotary parking system." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-295808.

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Automatic parking systems are intended to save a lot ofspace and create a more favourable parking experience. In this thesis the main goal was to create a functional and user-friendly rotary parking system. The system consistsof a framework, DC-motor, driveline, ultrasonic distance sensor and platforms. Most of the construction consists of plastic, the remaining parts are made of metal. The system was evaluated using two experiments, one that measured the speed of the system and the other one measuring the level of accuracy. After the first experiment, it was concluded that the system works we
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Nováková, Naděžda. "Dynamické radiální síly působící na oběžné kolo odstředivého čerpadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230329.

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This thesis deals with the radial forces acting on the impeller of a centrifugal pump. It focuses on the centrifugal pump type BETA 26. It addresses forces acting on the pump shaft. These forces are converted into the impeller. The most extensive part of this thesis is devoted to the experimental measurement and evaluation. The results are summarized and processed graphically.
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Soykasap, Omer. "Aeroelastic optimization of a composite tilt rotor." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/11823.

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Montesanti, Richard Clement. "High bandwidth rotary fast tool servos and a hybrid rotary/linear electromagnetic actuator." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34987.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 541-555).<br>This thesis describes the development of two high bandwidth short-stroke rotary fast tool servos and the hybrid rotary/linear electromagnetic actuator developed for one of them. Design insights, trade-off methodologies, and analytical tools are developed for precision mechanical systems, power and
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Books on the topic "Rotari"

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Kadiĭski, T︠S︡vi︠a︡tko. Rotari v Sofii︠a︡: Legenda i deĭstvitelnost. Kolbis, 2000.

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Pavlović, Momčilo. Rotari klub Subotica: 1929-1941, 1997-2008 = Szabadkai Rotary Klub = Szabadkai Rotary Klub. Rotari klub, 2008.

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Polazzo, Marco. Pietro Rotari: Pittore veronese del Settecento (1707-1762). Il Segno, 1990.

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Müller, Harald F. 1950- Fotograf, ed. Rotari jak hlobal'na spil'nota cinnostej: Etyka v ekonomici ta suspil'stvi. Vydavnyčyj budynok Faktor, 2012.

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Ralph, Jolly J., Marcolini Michael A, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Division., eds. Helicopter main-rotor noise: Determination of source contributions using scaled model data. National Aeronautics and Space Administration, Scientific and Technical Information Division, 1988.

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Brooks, Thomas F. Helicopter main-rotor noise: Determination of source contributions using scaled model data. National Aeronautics and Space Administration, Scientific and Technical Information Division, 1988.

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Brooks, Thomas F. Helicopter main-rotor noise: Determination of source contributions using scaled model data. National Aeronautics and Space Administration, Scientific and Technical Information Division, 1988.

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Brooks, Thomas F. Helicopter main-rotor noise: Determination of source contributions using scaled model data. Langley Research Center, 1988.

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Runyan, Harry L. Compressible, unsteady lifting-surface theory for a helicopter rotor in forward flight. NASA, 1985.

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H, Tai, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., eds. Compressible, unsteady, lifting-surface theory for a helicopter rotor in forward flight. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1986.

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Book chapters on the topic "Rotari"

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Wu, Zhihua, Zhanwei Li, Mengfan Shi, and Qing Zhang. "Analysis of Factors Affecting Critical Speed of Multi-span Rotor System Coupled with Diaphragm Coupling." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_77.

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AbstractTaking the multi-span rotor system composed of two double diaphragm couplings coupled with three rotors as the object, the finite element model of the high-speed multi-span rotor system is established, and the critical speed of the rotor system is solved using ANSYS Workbench software. The effects of the radial stiffness of the diaphragm coupling and the bearing support stiffness on the critical speed of the rotor system in the first three orders are analyzed. The results show that, for the model established in this paper, within a certain range, the radial stiffness of the diaphragm c
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Souza Barrozo, Marcos Antonio de, Dyrney Araújo Dos Santos, Cláudio Roberto Duarte, and Suellen Mendonça Nascimento. "Fluid Dynamics and Modeling of Heat and Mass Transfer in Rotary Drums." In Rotary Drum. CRC Press, 2023. http://dx.doi.org/10.1201/9781003258087-4.

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Souza Barrozo, Marcos Antonio de, Dyrney Araújo Dos Santos, Cláudio Roberto Duarte, and Suellen Mendonça Nascimento. "Introduction." In Rotary Drum. CRC Press, 2023. http://dx.doi.org/10.1201/9781003258087-1.

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Souza Barrozo, Marcos Antonio de, Dyrney Araújo Dos Santos, Cláudio Roberto Duarte, and Suellen Mendonça Nascimento. "Nonconventional Rotary Dryers." In Rotary Drum. CRC Press, 2023. http://dx.doi.org/10.1201/9781003258087-3.

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Souza Barrozo, Marcos Antonio de, Dyrney Araújo Dos Santos, Cláudio Roberto Duarte, and Suellen Mendonça Nascimento. "Direct-Heat Rotary Dryers." In Rotary Drum. CRC Press, 2023. http://dx.doi.org/10.1201/9781003258087-2.

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Daher, Georges, Stéphane Régnier, and Sinan Haliyo. "A Rotary Induction Actuator for Kinesthetic and Tactile Rendering." In Haptics: Science, Technology, Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-06249-0_18.

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AbstractActuators with low inertia and high bandwidth are of great interest for haptic devices, as they improve the quality of force rendering and transparency. This paper describes, as a proof of concept, a new design in rotary induction motors, the Axial-DSIM (Axial Double-Sided Induction Motor). This motor has a simple design construction that consists of a thin and lightweight disc-shaped moving secondary (rotor) surrounded by fixed primaries on both sides that generate a rotating magnetic field that induces a force on the disc. The low inertia of this motor and its principle of operation
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Klein, Nicolaus, Leon Franken, Markus Heim, Florian Kößler, Benjamin Dönges, and Jürgen Fleischer. "Assessment of Product Carbon Footprint Reduction Potential Using Lightweight Rotor Components for Electric Traction Motors." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-93891-7_11.

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Abstract The mobility sector is currently undergoing one of the most profound transformation processes in its history. With ambitious climate targets on the horizon, there is a pronounced shift towards electric traction drives. However, in comparison to drivetrains with internal combustion engines, electric drivetrains and batteries have a larger carbon footprint during manufacturing. Thus, product innovations become important to reduce the carbon emissions associated with the traction motor. Among these innovations are lightweight components such as rotor shafts, balancing disks, and magnetic
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Yada, Isao, and Yu Shomura. "Physiology of Nonpulsatile Circulation." In Rotary Blood Pumps. Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-67917-2_1.

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Nosé, Yukihiko. "Future of Rotary Blood Pumps." In Rotary Blood Pumps. Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-67917-2_10.

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Montiès, Jean-Raoul, Jean Trinkl, Jean-Luc Demunck, Thierry Mesana, Patrick Havlik, and Thierry Caus. "CORA Rotary Blood Pump: Totally Sealed Bearings." In Rotary Blood Pumps. Springer Japan, 2000. http://dx.doi.org/10.1007/978-4-431-67917-2_11.

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Conference papers on the topic "Rotari"

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Prothin, Sebastien, François Defay, Luc Lambert, and Guillaume Raynaud. "A Vectoring Thrust Coaxial Rotor for Micro Air Vehicle: Modeling and Control." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11573.

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The growing interest of rotary wing UAVs, for military and civilian applications, has encouraged designers to consider miniaturized configurations, more efficient in terms of endurance, payload capability and maneuverability. The purpose of this paper is to study a new configuration of coaxial rotor as applied to a micro aerial vehicle (MAV) with the intention to guarantee the vehicle maneuverability while removing unnecessary control surfaces which would increase wind gust sensitivity. Coaxial rotor configurations maximize the available rotor disk surface and allow for torque cancelation. Til
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Paduano, James, Sanjiv Singh, Sebastian Scherer, et al. "TALOS: An Unmanned Cargo-Delivery System for Rotorcraft Landing to Unprepared Sites." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10293.

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The growing interest of rotary wing UAVs, for military and civilian applications, has encouraged designers to consider miniaturized configurations, more efficient in terms of endurance, payload capability and maneuverability. The purpose of this paper is to study a new configuration of coaxial rotor as applied to a micro aerial vehicle (MAV) with the intention to guarantee the vehicle maneuverability while removing unnecessary control surfaces which would increase wind gust sensitivity. Coaxial rotor configurations maximize the available rotor disk surface and allow for torque cancelation. Til
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Prothin, Sebastien, and Nicolas Doué. "Design and Analysis of a Thrust-Vectoring Coaxial-Rotor Micro Air Vehicle." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10292.

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The growing interest of rotary wing UAVs, for military and civilian applications, has encouraged designers to consider miniaturized configurations, more efficient in terms of endurance, payload capability and maneuverability. The purpose of this paper is to study a new configuration of coaxial rotor as applied to a micro aerial vehicle (MAV) with the intention to guarantee the vehicle maneuverability while removing unnecessary control surfaces which would increase wind gust sensitivity. Coaxial rotor configurations maximize the available rotor disk surface and allow for torque cancelation. Til
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Chernak, Harry, Kyle Collins, Kranthi Kumar Deveerasetty, Patric Hruswicki, and Syed Zuhair Ali Razvi. "Development and Evaluation of a Quad-Heli eVTOL Capable of Safe Fly with a Failed Rotor." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-133.

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With advanced air mobility (AAM) vehicles becoming an increasingly popular topic in aviation, the Eagle Flight Research Center (EFRC) at Embry-Riddle Aeronautical University continues to investigate control strategies that enhance aircraft resilience to total power unit failures. Utilizing a distributed electric propulsion (DEP) quad-heli test bed, the EFRC has explored a variety of control laws and hardware configurations to evaluate their effectiveness under failure conditions, including sustained flight with a completely inoperative rotor. The aircraft utilizes a fractional-order PID (FOPID
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Zawodny, Nikolas, D. Boyd, and Casey Burley. "Acoustic Characterization and Prediction of Representative, Small-Scale Rotary-Wing Unmanned Aircraft System Components." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11346.

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In this study, hover performance and acoustic measurements are taken on two different isolated rotors representative of small-scale, rotary-wing unmanned aircraft systems (UAS) for a range of rotation rates. Each rotor system consists of two fixed-pitch blades powered by a brushless motor. For nearly the same thrust condition, significant differences in overall sound pressure level (OASPL), up to 8 dB, and directivity were observed between the two rotor systems. Differences are shown to be in part attributed to different rotor tip speeds, along with increased broadband and motor noise levels.
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Copp, Peter. "A Rotary Union to Provide Active Flow Control to a Mach Scale Rotor." In Vertical Flight Society 80th Annual Forum & Technology Display. The Vertical Flight Society, 2024. http://dx.doi.org/10.4050/f-0080-2024-1193.

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A rotary union was developed and tested that allows for active flow control to be tested on the Army General Rotor Model System (GRMS) Mach scale rotor test stand. The union has a center pass through for the rotor shaft and control links. Three air channels formed by mortised seals allow air transit between the fixed frame and the rotating frame. Each channel can move 10 SCFM at 30 psi with a pressure loss of 0.2 psi. The union torque depends on seal differential pressure. The torque is 11 lbf-ft at 11 psi or 2.5 HP at 1250 RPM which is sufficient for a rotor tip Mach of 0.64. The union was te
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Huang, Xun, Linghai Lu, and James Whidborne. "A Bio-Inspired Hybrid Mode for Enhancing Rotary MAV Performance." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-120.

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Enhancing rotor efficiency has been a persistent challenge in the development of micro aerial vehicles (MAV) especially for surveillance and covert operations. This study introduces a new Hybrid Flapping Wing Rotor (Hybrid FWR) configuration inspired by insect's wing flapping mechanics to address the efficiency limitation of traditional rotor designs. Unlike traditional rotary systems that rely solely on rotational motion, the Hybrid FWR combines rotational and flapping motions to significantly enhance lift generation. A comprehensive mathematical model was developed to analyze and predict the
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Kang, Hao, and Bryan Glaz. "Aeroelastic Stability Analysis of Stiff-in-plane Hingeless Rotors." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12752.

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Aeroelastic stability of stiff-in-plane hingeless rotors is investigated using the comprehensive analysis RCAS. Aeroelastic stability analysis of stiff-in-plane rotors in hover is compared to experimental measurements that shows an overall fair to good agreement for various rotor parameters. The analysis reveals that blade lead-lag damping decreases sharply and the blades become aeroelastically unstable when the blades stall. Stiff-in-plane rotor aeroelastic stability analysis in forward flight is compared to a previous numerical study. Then, using the rotor models as a baseline, a parametric
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Zawodny, Nikolas, and D. Douglas. "Investigation of Rotor-Airframe Interaction Noise Associated with Small-Scale Rotary-Wing Unmanned Aircraft Systems." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12283.

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In this study, hover acoustic measurements are taken on isolated rotor-airframe configurations representative of smallscale, rotary-wing unmanned aircraft systems (UAS). Each rotor-airframe configuration consists of two fixed-pitch blades powered by a brushless motor, with a simplified airframe geometry intended to represent a generic multicopter arm. In addition to acoustic measurements, CFD-based aeroacoustic predictions are implemented on a subset of the experimentally tested rotor-airframe configurations in an effort to better understand the noise content of the rotor-airframe systems. Fav
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Avera, Michael, Hao Kang, and Rajneesh Singh. "Performance and Controlability Assessment of an Overlapping Quad-Rotor Concept." In Vertical Flight Society 72nd Annual Forum & Technology Display. The Vertical Flight Society, 2016. http://dx.doi.org/10.4050/f-0072-2016-11356.

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A numerical study was conducted to characterize the influence on vehicle performance and controlability due to partially overlapped rotors. Partially overlapping rotors on a quad-rotor configuration is as an approach to mitgate the influence of geometric constraints on the vehicle design. A comprehensive analysis model of a pair of 3 bladed overlapped rotors with 0.66D shaft separation was assessed using a free vortex wake and the results were compared to published experimental data. A full quad-rotor vehicle analysis model was constructed to trim the vehicle and characterize the flight perfor
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Reports on the topic "Rotari"

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Zheng, Wanzheng, and Jason Merret. Aerodynamic Survey of Novel eVTOL Configuration Using SU2. Illinois Center for Transportation, 2022. http://dx.doi.org/10.36501/0197-9191/22-014.

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This report summarizes computational fluid dynamics (CFD) results of electric vertical takeoff and landing (eVTOL) geometries using the SU2 Reynolds-averaged Navier-Stokes (RANS) solver. Geometries were generated based on the Smart Transportation Infrastructure Initiative (STII) Rappor 15th iteration with various rotor-installment solutions. It was found that although open rotors installed on an underwing pylon were superior to shrouded rotors installed in a canoe, the canoe configuration would provide more potential for improvement, and using a canoe door to cover the first rotor opening woul
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Hawley. PR-015-11707-R01 Test Diagnostic Methods for Turbine Gas Meters. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010671.

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Similar to most metering technologies, turbine meters are known to be affected by abnormal flow or abnormal mechanical conditions which can cause bias in flow measurement. These types of flow conditions include blockage at the flow meter or straightening vanes, grime or liquid contamination on the internal meter components, damage to the internal meter components, and pulsation in the flow. With the introduction of ultrasonic and Coriolis meters for gas applications, the natural gas industry has embraced the concept of meters with embedded diagnostic capabilities. These capabilities allow the
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Quiroz, Josselyn, and Sabina Mungi. Efficacy and Efficiency in vitro, of chemo-mechanical caries removal against rotary system, in permanent teeth: A systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.2.0001.

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Review question / Objective: Systematic review based on the following PICOS question: P: Articles that have investigated permanent teeth; I: Articles that have investigated chemomechanical agents; C: Articles that have investigated rotary system; O: Articles that have obtained as a result, presence of bacterial colonies, microhardness, time; S: in vitro studies. Condition being studied: To the best of our knowledge, this is the first systematic review that aimed to evaluate the in vitro Efficacy and Efficiency of chemomechanical caries removal against a rotary system in permanent teeth. In add
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Grimley, Terry. PR-015-17605-R01 Operation of SICK FS500 Ultrasonic Meters in Closed Coupled Installations. Pipeline Research Council International, Inc. (PRCI), 2018. http://dx.doi.org/10.55274/r0011482.

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Paul Flanagan. Rotary Burner Demonstration. Office of Scientific and Technical Information (OSTI), 2003. http://dx.doi.org/10.2172/810808.

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Branson, Roger. Advanced Distributed Simulation Technology Advanced Rotary Wing Aircraft. Study Comparing Approaches to Modeling the ARWA Main Rotor. Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada280824.

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ตั้งพรประเสริฐ, ไพรัช. การปรับปรุงการกัดขึ้นรูปชิ้นงานวัสดุทางการแพทย์สำหรับการผลิตข้อต่อเทียมในประเทศไทย. จุฬาลงกรณ์มหาวิทยาลัย, 2010. https://doi.org/10.58837/chula.res.2010.44.

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งานวิจัยนี้มีจุดมุ่งหมายเพื่อปรับปรุงกลไกในการตัดขึ้นรูปวัสดุกัดขึ้นรูปได้ยากเพื่อลดแรงตัด ที่เกิดขึ้นบน rake face ของมีดกลึงด้วยการใช้มีดกลึงแบบโรตารี่โดยอาศัยเครื่อง CNC multitasking lathe ที่มีหัวกัด milling spindle เป็นตัวหมุนเม็ดมีดกลม โดยในการทดลองได้ใช้เพลากลม stainless steel 316L เป็นวัสดุในการทดสอบทั้งแบบที่มีการหมุนของเม็ดมีด(Driven rotary tool)และแบบที่เม็ด มีดอยู่กับที่(Stationary tool)เพื่อการเปรียบเทียบ จากผลการทดลองปรากฏว่าเศษกลึงที่ได้จากมีด กลึงแบบโรตารี่มีขนาดบางกว่ามีดกลึงแบบเม็ดมีดอยู่กับที่ส่งผลให้ shear angle เพิ่มขึ้นแรงในการตัด จึงลดลง โดยที่ความเร็วตัด 90 m/min มีดกลึง
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Poirier, M. Rotary Microfilter Media Evaluation. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/890177.

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Montesanti, Richard Clement. High Bandwidth Rotary Fast Tool Servos and a Hybrid Rotary/Linear Electromagnetic Actuator. Office of Scientific and Technical Information (OSTI), 2005. http://dx.doi.org/10.2172/891383.

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Grimley, Terry. PR-015-20600-R01 Flow Testing of FS500 Meters. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012100.

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SICK FLOWSIC500 (FS500) ultrasonic flow meters were tested over a range of pressures and flow rates in piping configurations that are similar to those commonly used for rotary meters. This project extends the results previously reported in PR-015-17605-R01 to include meters for line sizes up to six inches.
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