TY - JOUR TI - Calculating geometric parameters for industrial robot gripper mechanism according to the assumed functional characteristics AU - Krenich, Stanisław TI - Calculating geometric parameters for industrial robot gripper mechanism according to the assumed functional characteristics AB - The paper presents an approach to optimal synthesis of robot gripper mechanism. There are two different patterns of force and displacement functional characteristics applied. The first one deals with the assumed linear or nonlinear displacement of the gripper ends, whereas the second one takes under consideration the constant value or nonlinear chart of the gripping force. In order to generate the optimal solutions a gradient based method, a random search method and an evolutionary algorithm are used. The obtained results show relatively good effectiveness of the proposed optimization approach in comparison to conventional methods of synthesis of linkage mechanisms. The best solutions were generated by the evolutionary algorithm based method; worse by the random search algorithm. Gradient based method fails during optimization process and should not be used for such type of problems, especially described by trigonometric functions. VL - 2016 IS - Mechanics Issue 5-M (15) 2016 PY - 2016 SN - 0011-4561 C1 - 2353-737X SP - 63 EP - 73 DO - 10.4467/2353737XCT.16.286.6118 UR - https://ejournals.eu/en/journal/czasopismo-techniczne/article/calculating-geometric-parameters-for-industrial-robot-gripper-mechanism-according-to-the-assumed-functional-characteristics KW - industrial robots KW - linkage mechanism synthesis KW - design optimization KW - evolutionary algorithms