Design of compliant mechanisms for industrial applications

Yilmaz, Alikan
Compliant mechanisms have the advantages of simplification in manufacturing and assembly, reducing cost, weight, wear, backlash and noise owing to their intrinsic structures. The aim of this study is to develop optimization methods to design reliable, high performance and easily manufacturable compliant equivalents of rigid body mechanisms used in industrial applications by utilizing the advantages of compliant mechanisms over rigid body mechanisms. Two particular mechanisms from the industry, namely a bistable field of view switch mechanism of optical systems and an adaptive finger mechanism for robot grippers are discussed in this thesis. The pseudo-rigid-body model is used for the design of bistable field of switch mechanism that is partially compliant while an analytical large deflection beam model is utilized to design the adaptive finger mechanism that is fully compliant. The optimized solutions satisfying the required motion conditions and desired force characteristics are also investigated through finite element analysis. The results are compared and the proposed designs are validated through physical prototypes.


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...
Simulator of an additive and subtractive type of hybrid manufacturing system
Dilberoğlu, Mecid Uğur; Yaman, Ulaş; Dölen, Melik (2019-06-24)
Additive Manufacturing (AM) facilitates the production of intricate objects despite its weakness in attainable part quality and fabrication speed compared to the conventional manufacturing methods. To alleviate the problems arising as a natural outcome of AM methods, hybrid technologies become viable options by employing concurrent manufacturing procedures, e.g. synergetic additive and subtractive manufacturing (SM) actions. Hybrid workstations have recently opened up new dimensions to 3D-printing industry,...
Extended Abstract: Dynamic Behavior of a Compliant Mechanism Driven by Stacked Piezoelectric Actuators
Koyuncu, A.; Şahin, Melin; Özgüven, Hasan Nevzat (2018-02-15)
Mechanical amplifiers are employed to enhance output displacement of piezoelectric actuators. Dynamic behavior of such an amplified piezoelectric actuator needs to be known accurately in order to verify its suitability for the driven system. The objective of this study is to present a theoretical approach to determine a mathematical model for an amplified piezoelectric actuator (APA) which consists of a stacked piezoelectric actuator (SPA) with rhombus type mechanical amplifier (RPA). Dynamics of the mechan...
Simulation of inelastic cyclic buckling behavior of steel box sections
Dicleli, Murat (Elsevier BV, 2007-4)
In this study, a nonlinear structural model is developed to simulate the cyclic axial force-deformation behavior of steel braces including their buckling behavior using the commercially available nonlinear finite element based software ADINA. The nonlinear cyclic axial force-deformation simulation is done for braces with box sections. However, the structural model and simulation techniques described in this study may be applicable to braces with various section types using other commercially available struc...
Interactions between backlash and bearing clearance nonlinearity in geared flexible rotors
Gürkan, Niyazi Ersan (2007-09-07)
In this study, the interactions between backlash, bearing clearance and bearing flexibility are studied in geared flexible rotors. For this purpose, the non-linear mathematical model developed in a recent previous study for geared rotors on flexible bearings is extended further to handle clearance nonlinearity in bearings. The model consists of elastic shafts on elastic bearings with clearance, and coupled by a non-linear gear mesh interface. Shafts are modeled by using finite elements. The mathematical mod...
Citation Formats
A. Yilmaz, “Design of compliant mechanisms for industrial applications,” M.S. - Master of Science, Middle East Technical University, 2013.