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Journal articles on the topic 'Cycloidal'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Su, De Yu, Shan Ming Luo, and Jian Wang. "Study on Meshing Force and Rigid-Flexible Coupling Dynamic Simulation of Cycloid Drive." Advanced Materials Research 1039 (October 2014): 36–43. http://dx.doi.org/10.4028/www.scientific.net/amr.1039.36.

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The meshing force between pin wheels and gear teeth of modified and standard cycloidal gears is calculated. The parametric model of cycloidal gear and pin wheels is built. The flexible processing of cycloidal gear and pin wheel is conducted using Ansys software. The virtual prototype of cycloid reducer is built. The dynamic simulation of rigid-flexible coupling of modified and standard cycloidal gears has been developed, respectively. The meshing force with friction is calculated and the maximum equivalent stress is obtained. A comparison study of the meshing force using theoretical method is

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2

Jiang, Chuang, Huiliang Wang, Tianhao Han, and Xing Liu. "Simulation and Compensation of Axial Geometric Errors for Cycloidal Gears Based on Form Grinding." Mathematical Problems in Engineering 2022 (April 21, 2022): 1–16. http://dx.doi.org/10.1155/2022/4804498.

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To increase quality, reduce cycloidal gear noise, and avoid unnecessary vibration and shock, a compensation of axial geometric errors method is proposed based on the cycloidal gear form grinding. In the process of machining cycloidal gears, the relative position relationship between the grinding wheel and workpiece is affected by geometric errors of the motion axes, which has serious effects on the surface accuracy of the cycloidal gears. Combined with cycloidal gear form grinding kinematic principles, a geometric error model for each axis of a four-axis computer numerical control form grindin

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3

Biernacki, Krzysztof. "Methods of Increasing Loadability for the Plastic Cycloidal Gears." Key Engineering Materials 490 (September 2011): 156–65. http://dx.doi.org/10.4028/www.scientific.net/kem.490.156.

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The working unit of the hydraulic gerotor machine consists in cycloidal gears. In the paper, ways of increasing the load limit for the plastic cycloidal gears have been presented . The objective has been achieved by means of structural and material methods. The modifications have been introduced on the basis of the theoretical analysis of stress and deformation that are generated in the cycloidals gears while in operation. The analysis has been carried out with the use of the finite elements method. The outcome of the analysis is determination of the maximum working pressure value at which the

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4

Zhang, Chun Liang, and Yuan Yuan Wang. "Realization on Cycloid Tooth Profile for CNC Processing." Applied Mechanics and Materials 197 (September 2012): 60–63. http://dx.doi.org/10.4028/www.scientific.net/amm.197.60.

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The machining difficulty of cycloid disk has limited the extensive application of Cycloidal-pin gear planetary mechanism. The conventional machining methods and devices are a main reason. A new method is provided through a 3D software simulation and CNC numerical machining to assure the machining precision of cycloid disk and reduce the machining difficulty. The detail comparisons with old methods are analysized. The modeling and path stimulation are expressed. The NC programs are output. The method can largely reduce the production difficulty of cycloid disk and make high precise cycloidal tr

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5

Zhang, Ying Hui, Xiao Yu Wang, Wei Dong He, Feng Zhou, and Li Yang Hao. "The Precise Measurement Technology for Manufacturing Error of Cycloidal Gear Used in RV Reducer." Applied Mechanics and Materials 868 (July 2017): 334–39. http://dx.doi.org/10.4028/www.scientific.net/amm.868.334.

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According to problems in manufacturing and measuring process of cycloidal gear used in RV reducer, the profile coordinates of cycloidal gear captured by three coordinates measuring instrument Surveying and mapping do not coincide with the designed tooth profile coordinates in theory, it is difficult to precisely capture the addendum and dedendum of each cycloidal gear teeth, furthermore, the captured addendum and dedendum do not coincide with the actual tooth items. For these problems, this paper introduced a method can accurately calculating the manufacturing error of cycloidal gear.Based on

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6

Lei, Lei, Ying Tao, and Tian Min Guan. "Parametric Design of Cycloid Gear Based on SolidWorks." Advanced Materials Research 538-541 (June 2012): 3106–9. http://dx.doi.org/10.4028/www.scientific.net/amr.538-541.3106.

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In order to improve the efficiency and quality of design of complex parts, cycloid gear, in the pin-cycloidal transmission, this paper used SolidWorks to built accurately cycloid gear 3d model, and the VBA to program procedure for the secondary development, realized the parametric design of cycloid gear. Designer just enter the design parameters of cycloid gear , then gain the accurately generated cycloid gear 3d model rapidly , greatly improving the speed of cycloid gear design.

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7

Wei, Tengteng. "Structural Analysis of High-power Cycloidal Pinwheel Drive for Drilling Rig Winch." Academic Journal of Science and Technology 10, no. 2 (2024): 125–28. http://dx.doi.org/10.54097/3dtk3c18.

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Because the maximum power that can be transmitted by the ordinary cycloidal pinwheel reducer cannot meet the transmission applied to the drilling rig winch, the transmission part is improved, and the high-power cycloidal pinwheel transmission mechanism is designed. The three-dimensional model of the cycloidal pinwheel transmission mechanism was drawn by SOLIDWORKS software, the design of the two-piece cycloidal wheel in the ordinary cycloidal pinwheel reducer was changed to four cycloidal wheels, the needle tooth shell was partially reinforced, and finally the strength finite element analysis

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8

Zhang, Xiu Yan, and Xiao Jun Dai. "Meshing Stiffness Analysis of Four Ring-Plate-Type Pin-Cycloidal Gear Planetary Drive." Applied Mechanics and Materials 229-231 (November 2012): 499–502. http://dx.doi.org/10.4028/www.scientific.net/amm.229-231.499.

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The four ring-plate-type pin-cycloidal gear planetary drive is a new type of the cycloid. Use the new repair tooth profile gap mesh analysis method to Calculate the cycloid mesh stiffness. the mesh stiffness of the cycloid is solved, According to simulation results based on the ANSYS / LS-DYNA. and the results were compared with theoretical calculations, both mutual authentication. It can be use to improve the prototype program at last.

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9

DUDA, Henryk, and Bogdan WARDA. "EFFECT OF STRAIGHT-LINE MECHANISM DESIGN ON THE LOAD DISTRIBUTION IN A CYCLOIDAL GEAR." Tribologia 279, no. 3 (2018): 35–42. http://dx.doi.org/10.5604/01.3001.0012.7009.

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In the cycloidal gear, the torque is transmitted to the planet gears via an eccentric shaft with central bearings mounted on it. A straight-line mechanism is used to output the torque from the planet gears to the output shaft, a mechanism which consists of rotational sleeves mounted on the pins rigidly connected to the output shaft disc. These sleeves roll off in the holes of the planetary wheel. The forces generated in the straight-line mechanism affect the distribution of forces in the cycloid gearing and the amount of force loading the central bearing. The article presents the influence of

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10

Xu, Hang, Chenzhou Wei, Wei Gui, et al. "Investigation of the impact of cycloidal gear pin tooth wear on transmission error in precision planetary cycloidal reducers." International Journal of Metrology and Quality Engineering 15 (2024): 9. http://dx.doi.org/10.1051/ijmqe/2024007.

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In light of the alteration pattern of transmission error following wear of a cycloid gear and needle tooth, this study employs the precision planetary cycloidal 80E reducer as an example. Theoretical deduction and simulation analysis of the change in transmission error were conducted, relying on the Archard wear model and an error model. Utilizing the principles of Archard wear theory and error theory, a functional relationship between wear duration and transmission error is deduced. Subsequently, a dynamic simulation of the 3D model is executed using ADAMS software, and the simulation results

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11

Horodincă, Mihăiţă. "A Study on Tool Path Generation in 2D Contour Milling of Cycloidal Discs and Rings Used in Cycloidal Reducers." Bulletin of the Polytechnic Institute of Iași. Machine constructions Section 69, no. 1 (2023): 19–35. http://dx.doi.org/10.2478/bipcm-2023-0002.

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Abstract This paper presents a study on the determination of the tool paths in manufacturing by external or internal 2D contour milling (using an end mill cutter as tool) of a cycloidal disc and a cycloidal ring used inside a cycloidal reducer in two versions: with rotary pins as gear teeth placed on stator (in gear with cycloidal disc) and with rotary pins placed on rotor (in gear with cycloidal ring). These tool paths should be described by the Cartesian coordinates of the points on the 2D closed trajectory of the tool axis. The 2D profiles of a cycloidal disc (or a cycloidal ring) in transv

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12

Aliyev, Alesker, and Aydan Qasimova. "PERSPECTIVES OF CYCLOID TRANSMISSION." ETM - Equipment, Technologies, Materials 05, no. 01 (2021): 72–80. http://dx.doi.org/10.36962/etm0501202072.

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In modern mechanical engineering, transmissions with the use of an involute tooth profile are widespread. However, one of the main disadvantages of these transmissions is that they exposure to wear. In this study, research on the cycloid profile is conducted as an alternative option. Cycloid profiles are one of the profiles applied to the teeth in order to transmit motion. Although cycloid profiles are mainly used in instrumentation, satellites are made of cycloid profile in planetary gears. Cycloid profile teeth are less exposed to wear during operation. Practically, the shape of cycloidal te

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13

Zhou, Jian Jun, J. X. Hu, and Min Huang. "Geometric Design of Cycloidal Drives with Ceramic Ball Meshing Elements." Key Engineering Materials 336-338 (April 2007): 2484–86. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.2484.

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Geometric design procedures for the cycloidal drive with ceramic ball meshing elements were introduced. Using the theory of conjugate surfaces, the equations of meshing of the cycloid drive and the cycloid raceway profiles were derived. Design examples were presented to demonstrate the design procedure and feasibility. The ceramic balls were used as the meshing elements. Prototype of this research was made and tested with satisfying results. The results of this work are suitable for computeraided design and manufacture of industrial applications.

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14

Olejníková, Tatiana. "Cycloids on the Spherical Surface." Selected Scientific Papers - Journal of Civil Engineering 10, no. 1 (2015): 27–36. http://dx.doi.org/10.1515/sspjce-2015-0003.

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Abstract The article describes the creation of the normal cycloidal curve by rotation of the point about the normal of the circle on the spherical surface and binormal cycloidal curve created by rotation of the point about the binormal of the previous cycloidal curve. Cycloidal cyclical surfaces are created by moving circles along the curves lying in the normal plane of the curves. Described cycloidal cyclical surfaces are projected on the spherical surface. Varying parameters of the curves are generated different ornaments on the spherical surface.

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15

Bell, Elma J. "Cycloidal Vibration." Physiotherapy 77, no. 3 (1991): 234. http://dx.doi.org/10.1016/s0031-9406(10)61727-0.

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Bell, Elma J. "Cycloidal Vibration." Physiotherapy 77, no. 5 (1991): 328. http://dx.doi.org/10.1016/s0031-9406(10)61786-5.

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17

Han, Linshan, Xiaoming Hu, Yingjia Wang, and Hongwei Wang. "Research on Parametric Design Technology of Cycloidal Pin Wheel Reducer for Robot Based on Solid Works." Journal of Engineering Research and Reports 24, no. 6 (2023): 13–20. http://dx.doi.org/10.9734/jerr/2023/v24i6820.

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In this paper, SolidWorks software and VB.net programming language are used to accurately design the cycloidal wheel of the cycloidal pin wheel reducer used in robot with 3D parameterization and the 3D model of cycloidal wheel is automatically drawn. It is beneficial to save and modify the drawings and reduce the workload of the designers. In batch design, the design model can be automatically updated by modifying the parameters of cycloidal wheel 3D model or drawing parameters.

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18

Wang, Junzheng, and Hongzhan Lv. "Modification and Optimization of Cycloidal Gear Tooth Profile Based on Machining Error Compensation." Applied Sciences 13, no. 4 (2023): 2581. http://dx.doi.org/10.3390/app13042581.

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The rotary vector reducer presents high precision and load capacity characteristics. The shape of the cycloidal gear tooth profile in the rotary vector reducer significantly affects its performance. Meanwhile, the effect of the machining error on the error between the designed and theoretical tooth profiles cannot be ignored. Thus, this paper analyzes the machining error items that affect the shape of the cycloidal gear profile from the machining process perspective. Due to the random characteristics and different distribution rules inherent in various machining errors, this paper proposes a c

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19

Bakhtiari, Mohammad, and Hassan Ghassemi. "Numerical analysis on effects of blade number on hydrodynamic performance of low-pitch marine cycloidal propeller." Proceedings of the Institution of Mechanical Engineers, Part M: Journal of Engineering for the Maritime Environment 234, no. 2 (2019): 490–501. http://dx.doi.org/10.1177/1475090219876508.

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Marine cycloidal propeller, as a special type of marine propulsion system, is used for ships that require high maneuverability, such as tugs and ferries. In a marine cycloidal propeller, the thrust force is generated by rotation of a circular disk with a number of lifting blades fitted on the periphery of the disk, so that the propeller axis of rotation is perpendicular to the direction of thrust force. Each blade pitches about its own axis, and the thrust magnitude and direction can be adjusted by controlling the pitching angle of the blades. Therefore, the propulsion and maneuvering units ar

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20

Li, Tianxing, Xiaotao An, Xiaozhong Deng, Jinfan Li, and Yulong Li. "A New Tooth Profile Modification Method of Cycloidal Gears in Precision Reducers for Robots." Applied Sciences 10, no. 4 (2020): 1266. http://dx.doi.org/10.3390/app10041266.

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The tooth profile modification of cycloidal gears is important in the design and manufacture of precision reducers or rotary vector (RV) reducers for robots. The traditional modification design of cycloidal gears is mainly realized by setting various machining parameters, such as the size and center position of the grinding wheel. The traditional modification design has some disadvantages such as complex modification calculation, uncontrollable tooth profile curve shape and unstable meshing performance. Therefore, a new tooth profile modification method is proposed based on the consideration o

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21

Nachimowicz, Jerzy, and Stanisław Rafałowski. "Modelling the Meshing of Cycloidal Gears." Acta Mechanica et Automatica 10, no. 2 (2016): 137–40. http://dx.doi.org/10.1515/ama-2016-0022.

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Abstract Cycloidal drives belong to the group of planetary gear drives. The article presents the process of modelling a cycloidal gear. The full profile of the planetary gear is determined from the following parameters: ratio of the drive, eccentricity value, the equidistant (ring gear roller radius), epicycloid reduction ratio, roller placement diameter in the ring gear. Joong-Ho Shin’s and Soon-Man Kwon’s article (Shin and Know, 2006) was used to determine the profile outline of the cycloidal planetary gear lobes. The result was a scatter chart with smooth lines and markers, presenting the f

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22

Horodincă, Mihăiţă, Eduard Neculai Bumbu, Dragoş Florin Chitariu, Adriana Munteanu, Florin Chifan, and George Iulian Frigura. "A Study of 2D Profile for a Cycloidal Ring Used in a Cycloidal Reducer." Bulletin of the Polytechnic Institute of Iași. Machine constructions Section 68, no. 4 (2022): 85–100. http://dx.doi.org/10.2478/bipcm-2022-0038.

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Abstract This paper intends to introduce a new approach in cycloidal reducers design. The usual design uses rotary pins as teeth on the ring gear (or stator as well) and an appropriate conjugate profile on the cycloidal disc (or rotor as well). This study proposes a new approach: to use rotary cylindrical pins as teeth on the rotor and an appropriate conjugate profile on the ring gear (or cycloidal ring) according with the rules of gearing. The main achievements of this paper focus on the synthesis of 2D internal profile of the cycloidal ring in transverse section. Some theoretical achievement

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23

Staśko, Tomasz, Martyna Tomala, Mirosław Majkut, Krzysztof Nawrat, and Krystian Smołka. "Influence of Geometrical Parameters on the Shape of the Cycloidal Function Curve of a Fan with a Cycloidal Rotor." Energies 15, no. 7 (2022): 2504. http://dx.doi.org/10.3390/en15072504.

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Even though the cycloidal rotor concept has been around for almost a century, it is still not as popular as it should be. Most often it is used to propel unmanned aerial vehicles or sea-going ships, or it is applied as a river- or sea-energy converter. Despite the possibility of directing the flow by changing the inclination angle of blades and the possibility of working in both directions, there are no scientific studies on the use of the concept in HVAC (heat, ventilation and air conditioning). One of the most important elements characterizing the operation of the cycloidal rotor is the cycl

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24

Keppler, István. "Bezier curve shaped lamellae in cross flow dryers." Hungarian Agricultural Engineering, no. 43 (2024): 65–73. https://doi.org/10.17676/hae.2024.43.65.

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Recent advancements in dynamic modeling, supported by improved computational technologies, have enabled detailed investigations of particle motion within drying equipment. Under and over drying of harvested crops causes significant financial losses in agriculture. To overcome this issue, we analyzed the particle motion in cross flow dryers using analytical and numerical modeling techniques. In our earlier work we determined the theoretically optimal lamella geometry shape, using the Brachistochrone problem and finding the cycloid curve. The manufacturing problems of creating an approximate cyc

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Tsai, Y. T., and K. H. Lin. "Dynamic Analysis and Reliability Evaluation for an Eccentric Speed Reducer Based on Fem." Journal of Mechanics 36, no. 3 (2020): 395–403. http://dx.doi.org/10.1017/jmech.2019.52.

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ABSTRACTThis paper reported the designed approaches of cycloidal mechanisms, studied its dynamic forces and failure characteristics using finite element methods (FEM). A simplified cycloidal mechanism (CM) is constructed to fulfill dynamic analysis and reliability evaluation. The studied results show that the loads of the mechanism are shared mainly by a half of the outer rollers and the inner pins. The possible failures of the mechanism will occur at the inner pins caused by the bending stress, and at the cycloid disc induced by the contacting stress. The failure of the inner pins will domina

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Xu, Li Xin. "A dynamic model to predict the number of pins to transmit load in a cycloidal reducer with assembling clearance." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 233, no. 12 (2018): 4247–69. http://dx.doi.org/10.1177/0954406218809732.

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In the ideal design of a cycloidal reducer, the tooth profile of cycloidal gear can make contact with all pin teeth on the pinwheel, wherein half of the pin teeth participate in load transmission. Meanwhile, the output holes on a cycloidal gear can maintain contact with all pins on the output disc and half of the output pins deliver load. However, under the influence of the assembling clearance caused by tooth modification, manufacturing tolerance, or machining error, the numbers of pins that participate in force transmission on both pinwheel and output disc fails to reach half of the total av

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27

Kuts, Vadim, and Julia Malneva. "Calculation of the producing surfaces of milling cutters for processing gears of eccentric-cycloidal engagement." E3S Web of Conferences 531 (2024): 01004. http://dx.doi.org/10.1051/e3sconf/202453101004.

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The paper considers a new method for processing curved gears of eccentric-cycloidal engagement with a curved profile using a special tool. The surfaces of wheels of eccentric-cycloidal engagement with a curved profile for small and large wheels are simulated. The scheme of forming a small wheel of eccentric-cycloidal engagement using a shaped milling cutter with a constructive radial feed is shown. The producing surface of the milling cutter is obtained, which allows to fulfill all the conditions of shaping when implementing the proposed scheme for shaping a small wheel of eccentric-cycloidal

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28

Xu, Lizhong, Shuang Li, and Wenping Wang. "Sliding ratio for novel cycloidal gear drive." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 21 (2017): 3954–63. http://dx.doi.org/10.1177/0954406217743272.

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In this paper, for a novel spur cycloidal gear drive with a modified tooth profile, the equations of the sliding ratio are deduced from those of its tooth profile. Using the sliding ratio equations, the sliding ratio of the novel cycloidal gear drive is investigated and effects of the drive parameters on the sliding ratio are analysed. The sliding ratio of the novel cycloidal gear drive is then compared with that of an involute gear drive. The results show that the sliding ratio of the novel cycloidal gear drive is small and distributed evenly along its rotating angles, which makes the drive o

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Moreau, Dr Julien, and Dr Eva Nilsson. "UNDERSTANDING BACKLASH EFFECTS IN CYCLOIDAL GEARBOXES: A SINGLE-STAGE APPROACH." International Journal of Research in Engineering 4, no. 5 (2024): 1–4. https://doi.org/10.55640/ijre-04-05-01.

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Cycloidal gearboxes are widely used in applications requiring high reduction ratios, compact size, and high torque density, such as robotics, automation, and precision machinery. However, like other gear systems, they are susceptible to backlash, which is the clearance or lost motion between mating components. Backlash in cycloidal gearboxes can negatively impact performance by causing vibration, noise, reduced positioning accuracy, and increased wear, particularly under dynamic or reversing load conditions. This article presents an analysis of backlash in single-stage cycloidal gearboxes, dra

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30

Staśko, T., M. Majkut, S. Dykas, and K. Smołka. "CFD modelling of a fan with a cycloidal rotor." Journal of Physics: Conference Series 2367, no. 1 (2022): 012005. http://dx.doi.org/10.1088/1742-6596/2367/1/012005.

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Abstract Despite the wide possibilities of using a cycloidal rotor in the form of propulsion systems for unmanned aerial vehicles (UAV), cycloidal propellers for sea-going ships, rotors of wind turbines or sea or river cycloidal energy converters, there is practically no research on the use of this solution in the form of a cycloidal rotor fan (CRF) for HVAC (heat, ventilation & air conditioning) applications. The main features of such a machine, compared to conventional solutions, is a possibility of changing the flow direction only by changing pitch angles of the rotor blades. This study

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31

Brooks, Jeff, and Satha Push. "The Cycloidal Pendulum." American Mathematical Monthly 109, no. 5 (2002): 463. http://dx.doi.org/10.2307/2695647.

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32

Chaudhary, Kamesh. "Cycloidal Speed Reducer." International Journal for Research in Applied Science and Engineering Technology 6, no. 1 (2018): 2760–62. http://dx.doi.org/10.22214/ijraset.2018.1377.

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Brooks, Jeff, and Satha Push. "The Cycloidal Pendulum." American Mathematical Monthly 109, no. 5 (2002): 463–65. http://dx.doi.org/10.1080/00029890.2002.11919874.

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Dang, Phuong Xuan. "Design and manufacture of cycloid reduction gearbox made by combined materials for working in corrosive environment." Science and Technology Development Journal 20, K5 (2017): 81–86. http://dx.doi.org/10.32508/stdj.v20ik5.1163.

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This paper presents research result of design and manufacture of the cycloidal gearbox with some advantages such as low noise, high transmission ratio, high load, and erosive resistance. The new point of this works is the utilization of combined stainless materials that can be worked in an erosive environment, especially in the aquatic mechanical area, in order to save material and to increase the cycle life of this equipment. Besides, the cycloidal gearbox with stainless steel and polymer materials can be lubricated by water and is used with water-resistant or submersible electric motor. This

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Li, Jubo, Jianxin Su, Ming Gao, et al. "Inertia matching of CNC cycloidal gear form grinding machine servo system." Mechanics & Industry 24 (2023): 31. http://dx.doi.org/10.1051/meca/2023020.

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Reasonable ratio between the load inertia and servo motor inertia plays a decisive role for the dynamic performance and stability of the servo system, as well as the machining accuracy of the whole CNC machine. In order to improve the control performance and contour machining accuracy of the servo system of the CNC cycloidal gear form grinding machine, an optimization design method of the inertia matching for the CNC cycloidal gear form grinding machine servo system is proposed. The two-mass servo driving closed-loop PID control system is constructed, the influence of the different inertia rat

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36

Liu, Ming Yong, Cai Chao Zhu, Chu Nai Yan, Xiang Yang Xu, and Xiao Rong Zhang. "Modification Analysis of the New Axis-Fixed Cycloid Drive." Applied Mechanics and Materials 86 (August 2011): 82–85. http://dx.doi.org/10.4028/www.scientific.net/amm.86.82.

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Due to those disadvantages of the cycloidal-pin wheel transmission, such as complex structure, low efficiency and low bearing capacity, a new kind of axis-fixed cycloid transmission is proposed. A new method for optimum modification quantity of cycloid gear is put forward on the ground of its drive principle. Considering the influence of modification to tooth contact stress, finite element model of tooth contact for the drive is built.The analysis result indicates that there is no obvious edge contact of tooth profile and it is more reasonable for the contact stress to distribute along tooth w

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37

Zhu, Cai Chao, Ming Yong Liu, Xue Song Du, Ning Xiao, and Bin Zhang. "Analysis on Transmission Characteristics of New Axis-Fixed Cycloid Gear." Advanced Materials Research 97-101 (March 2010): 60–63. http://dx.doi.org/10.4028/www.scientific.net/amr.97-101.60.

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Due to those disadvantages of the cycloidal-pin wheel transmission, such as low efficiency, low bearing capacity and poor rigidity, a new kind of axis-fixed cycloid transmission is proposed after generalizing those advantages of axis-fixed drive, cycloid drive and oscillating-tooth drive. Special output mechanism is unnecessary here because the motion is exported directly by the cycloid gear. Thus, there are many advantages of this new transmission-simple structure, small size, high transmission efficiency and large torsional stiffness. The transmission theory and basic structure are analyzed

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Wu, Suzhen, Ran Guo, and Xuan Li. "Quasi-Static Force Analysis and Tooth Profile Modification Optimization of the Cycloid Speed Reducer." Applied Sciences 14, no. 2 (2024): 845. http://dx.doi.org/10.3390/app14020845.

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This article proposes a new method for optimizing tooth profile modification amounts of cycloidal reducers. By optimizing transmission error and transmission ratio fluctuation, the objective optimization function is determined, and the influence of optimized modification amount on various transmission performances is studied. In addition, this article also conducted mechanical analysis on the cycloidal reducer and obtained the results of tooth contact force. The mathematical model for the mechanical analysis of the cycloidal reducer was established, and the variation law of force distribution

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39

Dekterev, Aleksandr, Igor Kim, Ilya Zverkov, Dmitrii Dekterev, and Vasiliy Kretinin. "Use of cycloidal rotors for airships." E3S Web of Conferences 592 (2024): 02003. http://dx.doi.org/10.1051/e3sconf/202459202003.

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A scheme for using cycloidal rotors to ensure high maneuverability of airships has been developed. High maneuverability indicators (turn on the spot, side slip, forward/backward movement, wind load parrying, operational change of flight altitude without the use of ballasting) of the airship with two cycloidal propellers was confirmed experimentally. A design of an airship with cycloidal propellers without a tail unit, providing a lifting capacity of the airship of 3 tons and the possibility of loading and unloading without mooring devices was proposed.

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40

Król, Roman. "Kinematics and dynamics of the two stage cycloidal gearbox." AUTOBUSY – Technika, Eksploatacja, Systemy Transportowe 19, no. 6 (2018): 523–27. http://dx.doi.org/10.24136/atest.2018.125.

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This article presents results of the numerical analysis of cycloidal gearbox, which were obtained in MSC Adams engineering software. Multibody geometry for dynamical analysis was designed in Autodesk Inventor Professional 2017 and imported in MSC Adams. The results of analysis are forces acting on the internal and external sleeves, position, velocity and acceleration of the selected points on the cycloidal gearbox’s moving components. Indirect result is time course of the torque at output shaft which was calculated on the basis of forces acting on the internal sleeves, which are parts of the e

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Chen, Xin Chun, and Jia Li. "Cycloidal Rotary Indexing Compound Locus Numerical Control Machining Technology Based on SIMENS840D." Advanced Materials Research 154-155 (October 2010): 1186–92. http://dx.doi.org/10.4028/www.scientific.net/amr.154-155.1186.

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Based on the functional features of SIEMENS840D, a plan to realize the machining technology with cycloidal rotary indexing compound locus is provided. The machining principle with cycloidal rotary indexing compound locus method is stated at first, in which technological requirements for numerical control system are determined. Then, in combination with the functional features of SIEMENS840D, the overall structure of numerical control program produced with cycloidal rotary indexing compound locus, as well as the detailed parts of the program are proposed. Finally, the feasibility of the plan is

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Wu, Yang Fang, Chun Lin Xia, and Yong Gang Shi. "Calculation Method for the Theoretical Displacement of Cycloidal Pump." Applied Mechanics and Materials 37-38 (November 2010): 242–47. http://dx.doi.org/10.4028/www.scientific.net/amm.37-38.242.

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Based on meshing principle, a calculation method for profile curves in a kind of cycloidal pump was proposed. According to the definition of the theoretical displacement and the accurate profile coordinates of cycloidal pump, the accurate calculation method for displacement was obtained. The accuracy comparison between this method and the usual approximation equation for the displacement was also given in this paper. The results show that this method can get the precise theoretical displacement of cycloidal pump, is convenient for the scientists and technicians reference to design and manufact

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Martins, Jairo Aparecido, and Estaner Claro Romao. "Fracture Analysis of a Cycloidal Gearbox as a Yaw Drive on a Wind Turbine." Engineering, Technology & Applied Science Research 14, no. 1 (2024): 12640–45. http://dx.doi.org/10.48084/etasr.6613.

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Fast growth of renewable energies has required addressing challenges such as generating the largest energy production possible throughout the equipment's lifespan and between its preventive and corrective maintenance intervals. Actions such as preventive maintenance, and improvement of the main components, mainly when it comes to reliability and predictability are of extreme importance to reach maximum generation. Due to the importance of the yaw drives for wind turbines, this paper aims to evaluate a failure that occurred on a cycloidal gearbox used in a drive of this kind. For the evaluation

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Shih, A. J. "Kinematics of the Cycloidal Internal Combustion Engine Mechanism." Journal of Mechanical Design 115, no. 4 (1993): 953–59. http://dx.doi.org/10.1115/1.2919293.

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The application of the characteristics of cycloidal curves for the four-stroke rotary internal combustion engine mechanism is introduced. The major components of the cycloidal engine mechanism include a flywheel, a stationary sun gear, planetary gears, rotary bars, and rotary pistons. The rotary pistons are fixed to bars driven by pins of the planetary gears, and these pins follow a common trajectory of epicyloidal or hypocycloidal curve. Several combustion chambers are created by the rotary pistons. As the flywheel makes a complete revolution, the relative motion between rotary pistons and th

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Benmoussa, Amine, Frederico F. Rodrigues, and José C. Páscoa. "Plasma Actuators for Cycloidal Rotor Thrust Vectoring Enhancement in Airships." Actuators 12, no. 12 (2023): 436. http://dx.doi.org/10.3390/act12120436.

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Airships are a method of transportation with reduced fuel consumption and great potential for different applications. However, these aerial vehicles still present considerable control and maneuverability problems. To overcome these issues, in the current work, we propose the use of plasma-enhanced cycloidal rotor thrusters to increase the controllability and maneuverability of airships. Numerical simulations are carried out to demonstrate the potential of plasma actuators to enhance the efficiency and thrust vectoring capabilities of cycloidal rotors. The fluid dynamics of the flow effects cre

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Hayrapetyan, A. A., R. A. Aramyan, M. R. Hakobyan, and R. S. Hakobyan. "Achromatic Cycloidal Diffraction Gratings." Journal of Contemporary Physics (Armenian Academy of Sciences) 54, no. 3 (2019): 262–66. http://dx.doi.org/10.3103/s1068337219030058.

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Apostol, Tom M., and Mamikon A. Mnatsakanian. "Cycloidal Areas without Calculus." Math Horizons 7, no. 1 (1999): 12–18. http://dx.doi.org/10.1080/10724117.1999.12088451.

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Carnicer, J. M., E. Mainar, and J. M. Peña. "Interpolation on cycloidal spaces." Journal of Approximation Theory 187 (November 2014): 18–29. http://dx.doi.org/10.1016/j.jat.2014.07.002.

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Altosole, Marco, Silvia Donnarumma, Valentina Spagnolo, and Stefano Vignolo. "Performance Simulation of Marine Cycloidal Propellers: A Both Theoretical and Heuristic Approach." Journal of Marine Science and Engineering 10, no. 4 (2022): 505. http://dx.doi.org/10.3390/jmse10040505.

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The importance of mathematical and numerical simulation in marine engineering is growing together with the complexity of the designed systems. In general, simulation a makes it possible to improve the engineering design, reducing working time and costs of production as well. In this respect, the implementation of a simulation model for cycloidal propellers is presented. Cycloidal thrusters are being increasingly used in marine applications. Their best performance concerns low-speed applications, due to their ability to steer thrust in any direction. The proposed simulator is able to assess the

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Biernacki, Krzysztof. "Selection of the optimum tooth profile for plastic cycloidal gears." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 228, no. 18 (2014): 3395–404. http://dx.doi.org/10.1177/0954406214531408.

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Cycloidal gears make up the main working unit of hydraulic gerotor machines. In the article, a question of a more efficient application of plastics in building the gears is discussed. The discussion is based on a numerical strain analysis which was done by means of the finite elements method. The stress and deformation values in the operating cycloidal gears were specified. The numerical analysis was carried out in two stages in order to determine the optimum gear tooth profile. The profile depends on the tooth height and on the tooth correction coefficient. At the first stage, the optimum too

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