The dynamic synthesis of an energy-efficient Watt-II-Mechanism

Abstract

Mechanisms form part of many different production machines, e.g. weaving machines, printing machines or packaging machines. The energy-efficiency of their built-in mechanisms is crucial for the profitability of these machines. In many cases a considerable part of the energy to drive the mechanisms has to be applied to accelerate and decelerate links of these mechanisms. When a mechanism is driven in its so-called Eigenmotion, no energy-input for accelerating and decelerating its links has to be applied as the kinetic energy stays constant over the whole motion. In this contribution, the basic principles of energy-efficient mechanisms with a constant level of kinetic energy during its operation are discussed. A new method of designing such mechanisms is shown on the example of a six bar Watt-II-Mechanism.