Phase-Division-Based Dynamic Optimization of Linkages for Drawing Servo Presses

Existing linkage-optimization methods are designed for mechanical presses; few can be directly used for servo presses, so development of the servo press is limited. Based on the complementarity of linkage opti- mization and motion planning, a phase-division-based linkage-optimization model for a dra...

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Bibliographic Details
Published in:Chinese journal of mechanical engineering 2017-11, Vol.30 (6), p.1426-1437
Main Authors: Zhang, Zhi-Gang, Wang, Li-Ping, Cao, Yan-Ke
Format: Article
Language:English
Subjects:
Constraint modelling
Electrical Machines and Networks
Electronics and Microelectronics
Energy conservation
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Instrumentation
Linkages
Machines
Manufacturing
Mechanical Engineering
Mechanical presses
Motion planning
Optimization
Original Article
Power Electronics
Processes
Servomotors
Theoretical and Applied Mechanics
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Summary:Existing linkage-optimization methods are designed for mechanical presses; few can be directly used for servo presses, so development of the servo press is limited. Based on the complementarity of linkage opti- mization and motion planning, a phase-division-based linkage-optimization model for a drawing servo press is established. Considering the motion-planning principles of a drawing servo press, and taking account of work rating and efficiency, the constraints of the optimization model are constructed. Linkage is optimized in two modes： use of either constant eccentric speed or constant slide speed in the work segments. The performances of optimized link- ages are compared with those of a mature linkage SL4- 2000A, which is optimized by a traditional method. The results show that the work rating of a drawing servo press equipped with linkages optimized by this new method improved and the root-mean-square torque of the servo motors is reduced by more than 10%. This research pro- vides a promising method for designing energy-saving drawing servo presses with high work ratings.
ISSN:1000-9345
2192-8258
DOI:10.1007/s10033-017-0195-0