@ARTICLE{Hunstig2013a,
  author = {Hunstig, Matthias and Hemsel, Tobias and Sextro, Walter},
  title = {Modelling the friction contact in an inertia motor},
  journal = {Journal of Intelligent Material Systems and Structures},
  year = {2013},
  volume = {24},
  pages = {1380-1391},
  number = {11},
  abstract = {Piezoelectric inertia motors, also known as stickslip drives or (smooth)
	impact drives, use the inertia of a body to drive it by a friction
	contact in small steps, in the majority of motors composed of a stick
	phase and a slip phase between the friction partners. For optimizing
	inertia motors, it is important to understand the friction contact
	correctly and to measure its properties appropriately. This contribution
	presents experimental set-ups for measuring the contact force, friction
	force and relative displacement in an actual inertia motor with a
	dry friction contact and numerical simulations of the motor operation.
	The motor uses a pre-stressed multilayer actuator with a displacement
	in the range of 20 $\mu$ m. It is shown that a previously postulated
	condition for the applicability of simple kinetic friction models
	is well fulfilled for the investigated motor. The friction contact
	in the motor is simulated using different kinetic friction models.
	The input for the friction models is the measured motion of the rod.
	The models qualitatively reproduce the measured motion but show quantitative
	deviations varying with frequency. These can be explained by vibrations
	of the driving rod that are experimentally investigated.},
  bdsk-url-1 = {http://jim.sagepub.com/content/24/11/1380.abstract},
  bdsk-url-2 = {http://dx.doi.org/10.1177/1045389X12474354},
  doi = {10.1177/1045389X12474354},
  eprint = {http://jim.sagepub.com/content/24/11/1380.full.pdf+html},
  file = {Hunstig2013a.pdf:Hunstig2013a.pdf:PDF},
  keywords = {Actuator, friction, motor, piezoelectric},
  timestamp = {2013.09.26},
  url = {http://jim.sagepub.com/content/24/11/1380.abstract}
}