Use of spatial four-bar mechanism for the synthesis of mechanisms with large dwell

Date

2004-04-04

Author

Söylemez, Eres
Parlaktas, V

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

25
views

0
downloads

In several design applications there is a need for mechanisms having long periods of dwell. If the output is to remain completely stationary cam, geneva or intermittent gear mechanisms are used. When an approximate dwell is sufficient, this is usually achieved by mechanisms with lower kinematic pairs or with cycloidal motion mechanisms utilizing gear pairs. There exists several examples in the literature where a cam is conveniently replaced by a six-link planar dwell mechanism. However, in cases where large output stroke and/or large proportion of dwell period is required, such a solution may not provide an acceptable solution in terms of link proportions, force transmission and kinematic characteristics or due to the excessive oscillations during the dwell period.

Subject Keywords

Dwell mechanisms, Spatial four-bar mechanism design

URI

https://hdl.handle.net/11511/63258

Collections

Department of Mechanical Engineering, Conference / Seminar

Suggestions

OpenMETU
Core

Design of a variable five-axes adjustable configuration robot manipulator YUCEL, AS; Ersak, Aydın (1994-04-14) A robot manipulator design is presented in this paper supplying a few kinematical configurations in a single structure which is in the mean time, reconfigurable for given tasks and hence making the level of flexibility and adaptability much higher for changing working environments
On the design of a novel fully compliant spherical four-bar mechanism Parlaktaş, Volkan; Tanık, Engin; Tanık, Çağıl Merve (SAGE Publications, 2019-9) <jats:p> In this article, a novel fully compliant spherical four-bar mechanism is introduced and its generalized design methodology is proposed. The original fully compliant mechanism lies on a plane at the free position (undeflected position); therefore, it has the advantages of ease of manufacturing, minimized parts, and no backlash. First, the mobility conditions of the mechanism are obtained. The dimensions of the mechanism are optimally calculated for maximum output rotation, while keeping the deflecti...
Stochastic inventory modelling t Özkan, Erhun; Serin, Yaşar Yasemin; Department of Industrial Engineering (2010) In this master thesis study, new inventory control mechanisms are developed for the repairables in Nedtrain. There is a multi-item, multi echelon system with a continuous review and one for one replenishment policy and there are different demand supply options in each control mechanism. There is an aggregate mean waiting time constraint in each local warehouse and the objective is to minimize the total system cost. The base stock levels in each warehouse are determined with an approximation method. Then dif...
Design and experimental verification of a clutched parallel elastic actuation mechanism for legged locomotion Tanfener, Emre; Turgut, Ali Emre; Saranlı, Uluç; Department of Mechanical Engineering (2022-1) This thesis presents modeling and system identification studies of a parallel elastically actuated robotic leg system and then details a clutch mechanism design to increase the overall efficiency of the system. The considered platform is a hopping mechanism constrained in the vertical axis that moves with the help of an electric motor and the integrated tension spring working parallel to the motor. To describe the dynamic motion of the mechanism, including the impact transitions, a linearized mass-spring da...
A New Estimation Technique for AR(1) Model with Long-tailed Symmetric Innovations Akkaya, Ayşen (null; 2017-09-17) In recent years, it is seen in many time series applications that innovations are non-normal. In this situation, it is known that the least squares (LS) estimators are neither efficient nor robust and maximum likelihood (ML) estimators can only be obtained numerically which might be problematic. The estimation problem is considered newly through different distributions by the use of modified maximum likelihood (MML) estimation technique which assumes the shape parameter to be known. This becomes a drawback ...

Citation Formats

E. Söylemez and V. Parlaktas, “Use of spatial four-bar mechanism for the synthesis of mechanisms with large dwell,” 2004, p. 1103, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/63258.