Category Archives: MECHANICAL

It contains over 300 mechanical technical paper topics with details and many latest technical paper topics.

Ultrasonic Motor

An ultrasonic motor is a type of electric motor formed from the ultrasonic vibration of a component, the stator, placed against another, the rotor or slider depending on the scheme of operation (rotation or linear translation). Piezoelectric ultrasonic motors are a new type of actuator. They are characterized by high torque at low rotational speed, simple mechanical design and good controllability. They also provide a high holding torque even if no power is applied.

Introduction to Airfoil

An airfoil (in American English) or an aerofoil (in British English) is the shape of a wing or blade in cross section. An Airfoil shaped body moved through a fluid produces an aerodynamic force. The component of this force perpendicular to the direction of motion is called lift