On the analysis and design of a novel fully compliant slider-crank mechanism

Download

index.pdf

Date

2020

Author

Tanık, Çağıl Merve

Metadata

Show full item record

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

Item Usage Stats

250
views

121
downloads

In the literature, authors have made contributions in the area of partially compliant slider-crank mechanisms those possess rigid joints that may cause backlash inherently. On contrary, fully compliant mechanisms offer no backlash which is a valuable property for the cases where high preciseness is required. In this paper, we proposed an original “fully” compliant slider-crank mechanism design. To the best of our knowledge, this is the first study in the literature on a compliant slider-crank mechanism without a rigid prismatic joint. An analysis and design procedure for this mechanism is proposed. Kinematic performance of the mechanism is investigated analytically. Dimensions of the mechanism are optimized to obtain maximum translational output, while keeping deflections of the flexible hinges equal to each other and as small as possible. A design table displaying relationships between output stroke, axis drift of the output segment in unitless form, and critical stresses at the compliant segments are presented. As an example, a compliant mechanism is designed by using rigid body replacement technique. Then, by using nonlinear finite element analysis technique, analytical results are verified. Finally, a real model is built to compare output stroke and axis drift with the derived analytical approaches. The results of experiments verified that the proposed theoretical approaches are consistent.

Subject Keywords

Mechanical movements., Fully Compliant Mechanisms, Slider-Crank Mechanisms, No Backlash, Straight Line Motion Generation

URI

http://etd.lib.metu.edu.tr/upload/12625323/index.pdf
https://hdl.handle.net/11511/45330

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

On the analysis and design of a fully compliant large stroke slider-crank (rocker) mechanism TANIK, ÇAĞIL MERVE; TANIK, ENGİN; Yazıcıoğlu, Yiğit; PARLAKTAŞ, VOLKAN (2020-02-07) In the literature, authors have made contributions in the area of partially compliant slider-crank (rocker) mechanisms possessing rigid joints that may cause backlash inherently. On contrary, fully compliant mechanisms offer no backlash which is a valuable property for the cases where high precision is required. In this paper, we proposed a fully compliant slider-crank mechanism that performs large stroke. Kinematic performance of the mechanism is investigated analytically. Dimensions of the mechanism are o...
on the analysis and design of a new type of partially compliant mechanism Tanık, Engin; Söylemez, Eres; Department of Mechanical Engineering (2007) In this study analysis and design procedures of partially compliant mechanisms using two degree of freedom mechanism model are developed. The flexible segments are modeled as revolute joints with torsional springs. While one freedom is controlled by the input to the mechanism, the motion of the parts are governed both by the kinematics and the force balance. The procedure developed for the analysis of such mechanisms is shown on two different mechanisms: a five link mechanism with crank input and slider out...
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...
Minimizing axis drift in fully compliant slider-crank mechanism Saygılı , Ufuk Enes; Yazıcıoğlu, Yiğit; Yıldız, Erdinç Nuri; Department of Mechanical Engineering (2023-1-23) Compliant slider-crank mechanisms have been studied several times to gain the advantages of compliant mechanisms. The advantages of compliant mechanisms are precision, reducing cost, having no wear, and reducing weight, all gained by manufacturing them as a single piece without backlash. Compliant slider-crank mechanisms also have a critical disadvantage to solve: axis drift and axis rotation of the output segment. Partially compliant slider-cranks are studied several times, and there is only one stud...
Synthesis of compliant bistable four-link mechanisms for two positions Subaşı, Levent; Söylemez, Eres; Department of Mechanical Engineering (2005) The aim of this study is to present a design approach for compliant bistable four-link mechanisms. The design constraints are the two positions of the mechanism, the force required to snap between the positions and the fatigue life of the designed mechanism. The theory presented here will be applied to the door lock mechanism used in commercial dishwashers, which is originally designed as a rigid inverted slider crank mechanism snapping between two positions with the force applied by a spring. The mechanism...

Citation Formats

Ç. M. Tanık, “On the analysis and design of a novel fully compliant slider-crank mechanism,” Thesis (Ph.D.) -- Graduate School of Natural and Applied Sciences. Mechanical Engineering., Middle East Technical University, 2020.