...Wei-Liang Chen; Chung-Biau Tsay Based on the previously developed mathematical model of a series of recess action (RA) worm gear drive (i.e., semi RA, full RA, and standard proportional tooth types) with double-depth teeth, the tooth contact analysis (TCA) technique is utilized to investigate...

... misalignment and out-of-plane misalignment. The former is where the axes of a pulley pair, driving and driven, are in the same plane but not parallel. The latter is where the axes of pulleys are not in the same plane. In this paper, both cases of the belt skew caused by out-of-plane and in-plane misalignment...

... on the combination and timing of the teeth of ring, planet, and sun gears. In this paper, the instantaneous efficiency characteristics of synchronous and nonsynchronous actuators under forward-driving with opposing load and reverse-driving with aiding load are investigated. The emphasis will be on instantaneous...

...Huimin Dong; Delun Wang; Kwun-Lon Ting The paper and its companion [Dong et al., 2011, “Kinematic Fundamentals of Planar Harmonic Drives,” ASME J. Mech. Des., 133 (1), p. 011007], which treats a harmonic drive without a cup, present the geometry-relevant operation of harmonic drives under an ideal...

...Chinedum E. Okwudire Emerging applications of ball screw drives such as semiconductor inspection, fiber optic alignment, medical equipment, and miniature robotic actuators typically make use of ball screws that are compact, stiff, and precise. Existing models for the screw–nut interface stiffness...

...Huimin Dong; Kwun-Lon Ting; Delun Wang This paper presents the kinematic model and offers a rigorous analysis and description of the kinematics of planar harmonic drives. In order to reflect the fundamental kinematic principle of harmonic drives, the flexspline of a harmonic drive is assumed...

...Alfred N. Montestruc, P.E. Others have done significant work on the subject of load sharing among the planets of planetary gear drives; a brief review of that work is presented. Little work has been done, however, to evaluate the utility of the Hicks type flexible planet pins in improvement of load...

...-tool settings that provide the desired conditions of meshing and contact of the gear drive. The developed theory is illustrated with a numerical example. Figure 6a shows the pinion and gear root lines, which are not parallel but intersect each other at the common apex of pitch cones, point O...

...Ligang Yao; Bing Gu; Shujuan Haung; Guowu Wei; Jian S. Dai The purpose of this paper is to propose a pair of external and internal spiral bevel gears with double circular-arc in the nutation drive. Based on the movement of nutation, this paper develops equations of the tooth profiles for the gear...

...Jonathon W. Sensinger Cycloid drives are compact, efficient speed reducers. In this paper, a unified set of equations is presented to optimize their design. The conceptual framework and profile design are described. Sources and effects of tolerance are then introduced, including profile reduction...

...G. Carbone; L. De Novellis; G. Commissaris; M. Steinbuch The paper deals with the theoretical and experimental evaluation of the performance of a continuously variable transmission chain drive in steady-state conditions. We propose an enhanced version of the Carbone–Mangialardi–Mantriota (CMM...

... gear and final drive gear, respectively k b 1 … k b 5 linear stiffness of bearing 1 … bearing 5 K kinetic energy K stiffness matrix l length of shaft 1 m mass M mass matrix Δ p position...

...Derek Lahr; Dennis Hong In this paper, the operation and analysis of a novel, highly configurable, infinitely variable transmission of the ratcheting drive type is presented. This particular drive uses a cam and a number of cam followers rotatably mounted to a carrier plate to generate...

...Masanori Kagotani; Hiroyuki Ueda Synchronous belt drives are occasionally required to transmit rotation accurately and are often employed in bidirectional operation. For transmission error per single pitch of the pulley, a helical synchronous belt with a helix angle of the tooth trace is effective...

...Biing-Wen Bair This study develops a crowned elliptical gear drive that prevents edge contact when an elliptical gear drive has axial misalignment. According to the theory of gearing and a gear-generation mechanism with longitudinal crowing, the mathematical model of a crowned elliptical gear...

...Chinedum E. Okwudire; Yusuf Altintas It has been a common practice to assume that the torsional and axial dynamics are totally decoupled from the lateral dynamics of the screw when modeling ball screw drives. However, experiments show that there is a considerable coupling between them, which could...

...Wojciech Bejgerowski; Arvind Ananthanarayanan; Dominik Mueller; Satyandra K. Gupta Successful realization of a flapping wing micro-air vehicle (MAV) requires development of a light weight drive mechanism that can convert the continuous rotary motion of the motor into oscillatory flapping motion...

... graph or to decrease the sensitivity of the transmission to assembly errors. Furthermore, it can be easily adapted to any gear drive by virtue of its systematic and versatile nature. Schematic arrangement of the cradle-style machine In general, equations in system 4 are complex...

...Carlo Gorla; Piermaria Davoli; Francesco Rosa; Claudio Longoni; Franco Chiozzi; Alessandro Samarani In this paper, a theoretical and experimental investigation on an innovative cycloidal speed reducer is presented. The typical cycloid drive has a planet wheel, the profile of which is the internal...

...F. Sorge Belt drives work often with short center distances and very different wrap arcs so that high adherence characteristics are required at the belt-pulley contact. In addition, the belt flexural stiffness reduces the contact width, but this decrease may be compensated in part by the belt...