TY - JOUR
T1 - Kinematic optimization of ball-screw transmission mechanisms
AU - Mundo, D.
AU - Yan, H. S.
PY - 2007/1/1
Y1 - 2007/1/1
N2 - The paper proposes a method for the kinematic optimization of transmission mechanisms, where non-circular (NC) gears are used to perform a mechanical control on the output motion. The investigation presented here deals with the motion control of a ball-screw transmission mechanism. The objective is lowering the peak acceleration value of the screw, by designing a pair of variable radius gears as a driving mechanism. The kinematic characteristics of the ball-screw mechanism are analyzed by means of non-dimensional motion equations in order to formulate the optimization problem. A genetic algorithm (GA) is then implemented to optimize the objective function, and a penalty method is used to fulfil the design rules. The kinematic analysis of the optimal mechanism revealed a 37% reduction of the peak acceleration of the screw in comparison with a constant pitch screw, operated at a constant speed. A kinematic simulation is used to validate the method.
AB - The paper proposes a method for the kinematic optimization of transmission mechanisms, where non-circular (NC) gears are used to perform a mechanical control on the output motion. The investigation presented here deals with the motion control of a ball-screw transmission mechanism. The objective is lowering the peak acceleration value of the screw, by designing a pair of variable radius gears as a driving mechanism. The kinematic characteristics of the ball-screw mechanism are analyzed by means of non-dimensional motion equations in order to formulate the optimization problem. A genetic algorithm (GA) is then implemented to optimize the objective function, and a penalty method is used to fulfil the design rules. The kinematic analysis of the optimal mechanism revealed a 37% reduction of the peak acceleration of the screw in comparison with a constant pitch screw, operated at a constant speed. A kinematic simulation is used to validate the method.
UR - http://www.scopus.com/inward/record.url?scp=33750479370&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750479370&partnerID=8YFLogxK
U2 - 10.1016/j.mechmachtheory.2006.02.002
DO - 10.1016/j.mechmachtheory.2006.02.002
M3 - Article
AN - SCOPUS:33750479370
VL - 42
SP - 34
EP - 47
JO - Mechanism and Machine Theory
JF - Mechanism and Machine Theory
SN - 0374-1052
IS - 1
ER -