H. Storck

The effect of friction reduction in presence of ultrasonic vibrations and its relevance to travelling wave ultrasonic motors.

J. Wallaschek, H. Storck, W. Littmann, 2002, Ultrasonics.

Sliding friction in the presence of ultrasonic oscillations: superposition of longitudinal oscillations

Jörg Wallaschek, W. Littmann, Heiner Storck, 2001 .

The effect of tangential elasticity of the contact layer between stator and rotor in travelling wave ultrasonic motors

Jörg Wallaschek, Heiner Storck, J. Wallaschek, 2003 .

Reduction of friction using piezoelectrically excited ultrasonic vibrations

Joerg Wallaschek, Heiner Storck, Walter Littmann, 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.