... to previously published methodologies, this paper proposes a novel approach for directly synthesizing power-split hybrid transmissions that makes use of the results of previously synthesized planetary gear trains (PGTs) rather than necessitating a re-synthesis of their PGTs. A new topological graph that can...

... is constructed with a three-gear train and a tension spring mounted on a rotating link with a mass to be statically balanced. The static balancing design of the CGSM is realized by imposing geometrical constraints on the links and then deriving the spring parameters from analytical equations. The payload...

... ( 9 ), pp. 34 – 38 . [2] Raghavan , M. , 2010 , “ The Analysis of Planetary Gear Trains ,” ASME J. Mech. Robot. , 2 ( 2 ), p. 021005 . 10.1115/1.4001092 [3] Xu , X. , Dong , P. , Liu , Y. , and Zhang , H. , 2018 , “ Progress in Automotive Transmission Technology...

... this significant feature. The proposed approach makes use of the kinematic correspondence between the harmonic drive and an epicyclic gear train. Although the authors introduced simple approximations to describe the complex tribological phenomena during harmonic drive teeth meshing, the numerical results match...

... at a phase shift of γ s = π . Two additional stagger angles were also possible here to achieve stagger-phase angle differences of γ s = π /4 (12.5% stagger) and γ s = 3 π /4 (37.5% stagger) to bring the total number of discrete γ s values to five. design validation gear trains...

... not only minimizes the number of components but also exerts a relatively smaller force to the bearing and precludes elastic parts. Such features are beneficial for the Vernier drive in reliability and durability compared to epicyclic gear trains and harmonic drives. Also, since no component exists...

...] Kahraman , A. , Ligata , H. , Kienzle , K. , and Zini , D. M. , 2004 , “ A Kinematics and Power Flow Analysis Methodology for Automatic Transmission Planetary Gear Trains ,” ASME J. Mech. Des. , 126 ( 6 ), pp. 1071 – 1081 . 10.1115/1.1814388 [19] Kahraman , A. , Ligata , H...

... and methodology gear design gear geometry gear trains planetary gear trains power transmission simulation-based design systems design Ever since gear wheels and gear stages have been built, a permanent goal has been to improve the weight, lifetime, and efficiency of those transmission systems...

... of ASME for publication in the J OURNAL OF M ECHANICAL D ESIGN . Manuscript received March 10, 2018; final manuscript received May 22, 2018; published online July 24, 2018. Assoc. Editor: Ettore Pennestri. 10 03 2018 22 05 2018 Gear design Gear trains Tolerance analysis...

... With Test Data for 2010 Toyota Prius ,” SAE Paper No. 2012-01-1040. 10.4271/2012-01-1040 Design methodology Design optimization Design theory Gear design Gear trains Planetary gear trains Design methodology Power-split hybrid electric vehicles (HEVs) are one of the most promising...

...Essam Lauibi Esmail In a planetary gear train (PGT), the power loss by tooth friction is a function of the potential power developed within the gear train elements rather than that being transmitted through it. In the present work, we focus on the operating conditions of two-degree-of-freedom (two...

... Gear design Gear trains Planetary gear trains Planetary gear sets are common in various automotive, aerospace, and other industrial applications. In spite of their wide-spread use, analysis and design tools specific to planetary gear sets are sparse. On the analysis side, there are finite...

...Ming-Fei Gao; Ji-Bin Hu Planetary gear trains (PGTs) are used in automatic transmission to achieve any desired speed ratios. At present, the study on the relationship between speed ratio and topology is not significant. Therefore, this paper focuses on studying the speed ratio based on topology...

...Vinjamuri Venkata Kamesh; Kuchibhotla Mallikarjuna Rao; Annambhotla Balaji Srinivasa Rao Epicyclic gear trains (EGTs) are used in the mechanical energy transmission systems where high velocity ratios are needed in a compact space. It is necessary to eliminate duplicate structures in the initial...

... to account for manufacturing tolerances in the design of the gears of a planetary gear set. 1 Corresponding author. 17 12 2015 15 12 2016 Design for manufacturing Gear design Gear trains Power transmission Planetary gear sets are commonly used in many automotive, aerospace...

... Gear design Gear geometry Gear trains 06 01 2016 13 06 2016 Contributed by the Power Transmission and Gearing Committee of ASME for publication in the J OURNAL OF M ECHANICAL D ESIGN . Manuscript received January 6, 2016; final manuscript received June 13, 2016; published...

... ECHANICAL D ESIGN . Manuscript received July 13, 2015; final manuscript received October 16, 2015; published online November 19, 2015. Assoc. Editor: Hai Xu. 13 07 2015 16 10 2015 Gear dynamics Gear trains Planetary gear trains Tooth PMs are commonly used to eliminate corner...

... Transmission ,” ASME J. Mech. Des. , 136 ( 7 ), p. 071011 . 10.1115/1.4026950 Continuously variable transmissions Gear trains Kinematics Power transmission In a vehicle application, a transmission is used to achieve a good output performance of an engine, since the engine typically...

... of kinematic analysis has been developed. In order to stimulate the diffusion and applications of combined HD gearing, an atlas of structurally nonisomorphic gear trains has been compiled. The basic components of a single-stage HD are (see Fig. 1 ) Fig. 1 Main components of the HD — a rigid...

... Xu. 29 01 2015 17 08 2015 Gear dynamics Gear trains Recently, compact face-gear drive concepts have been successfully developed for helicopter transmission applications [ 1 – 4 ]. Face-gear drives offer important benefits such as high power density, torque-split...