In this study, PIC16F628 microcontroller-based control of a traveling-wave ultrasonic motor has been implemented. A drive system including ower supply, power electronic drives, and interface electronic circuits have been designed. The microcontroller has been integrated with drive ystem to achieve overall control of ultrasonic motor. Microcontroller generates start/stop, direction, and speed/po...

The contact interface variables are difficult to measure for an ultrasonic motor. When the motor works under different preloads, error between traditional efficiency model and real output is quite large. In order solve these two problems, we propose a novel model. It takes measured preload feedback voltage data as input, which may offer better accuracy on-line ability. Firstly, effect of on dri...

Both the topics of Computer Aided Process Planning and Production Planning in the context of sheet metal air bending have been presented as standalone topics previously. This paper will focus on the interaction between both modules. Choices made by the CAPP-module seem to influence the possible gains that can be obtained in production planning and vice versa. The used procedures for both the CA...