Mechanical Engineering / Makina Mühendisliği
Permanent URI for this collectionhttps://hdl.handle.net/11147/4129
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Conference Object Citation - Scopus: 11Structural Synthesis of 2r1t Type Mechanisms for Minimally Invasive Surgery Applications(Springer Verlag, 2018) Yaşır, Abdullah; Kiper, GökhanAssistive and operative manipulators allow easier and more precise operations for minimally invasive surgery. Such manipulators often have a pivot point at the incision port on the pa-tient’s body, so the manipulator should have a remote center of motion. This study presents the structural synthesis of a non-parasitic 3-dof manipulator with 2R1T motion pattern to be used as a remote center of motion mechanism for minimally invasive surgery applications. The manipulators of various kinematic structure are evaluated considering criteria such as possibility of construction of the mechanism for remote center of motion, ease of dynamic balancing, number of links, structural symmetry, the number of actuators connected to the base and decoupling of the joint inputs and the output motion of the platform.Conference Object Citation - WoS: 6Citation - Scopus: 3A Geometrical Approach for the Singularity Analysis of a 3-Rrs Parallel Manipulator(Springer Verlag, 2018) Tetik, Halil; Kiper, GökhanIdentifying singularity manifolds of parallel manipulators analytically is a hard task due to their complex kinematics and passive joints. This study proposes to use the geometrical conditions of singularities in order to identify the singularity manifolds for a 3-RRS parallel manipulator. The singularity surfaces for both inverse and forward kinematics singularities are obtained and plotted.Article Citation - WoS: 6Citation - Scopus: 8Structural Design of Parallel Manipulators With General Constraint One(Elsevier Ltd., 2010) Alizade, Rasim; Selvi, Özgün; Gezgin, ErkinIn this paper structural design of parallel manipulators with general constraint one regarding angular and linear-angular conditions are considered. Four known overconstrained mechanisms with angular and two new designs with linear-angular conditions are presented. 14 structural groups and end effector chains in subspace λ = 5 are examined. New formulations and definitions of constructing overconstrained manipulators are described. Using examined structural groups, all architectures of subspace λ = 5 parallel manipulators with revolute joints and single-loop are introduced via structural bonding.Article Citation - WoS: 39Citation - Scopus: 42Structural Synthesis of Serial Platform Manipulators(Elsevier Ltd., 2007) Alizade, Rasim; Bayram, Çağdaş; Gezgin, ErkinIn this paper, structural synthesis of serial platform manipulators is considered. Serial platform manipulators are created according to the development of the platforms and closed loops. Also a new structural formula of mobility of parallel Cartesian platform robot manipulators is presented. Structural synthesis of serial platform manipulators with lower and higher kinematic pairs with respect to their structures are also examined. Structural synthesis of parallel Cartesian platform robot manipulators is also introduced. History of structural formulas DOF are presented as a table with equations, authors, years and some commentaries. New and revised methods for structural synthesis of serial platform manipulators and parallel Cartesian platform robot manipulators are illustrated along with examples.