New concepts for an impact actuated micro shift valve are presented which are useful, e.g. as implant for the hydrocephalus disease. Such an implant must fulfil requirements, such as using biocompatible materials, a separation of the actuator from the fluid, MRT safety and low-energy consumption in order to allow a battery-powered system. The concepts are based on the impacts that transmit an impulse into the interior of the valve through the casing, switching the valve. In order to predict the energy transmitted into the valve, an elastic multibody model is created, verified with full finite element simulations and experiments on scaled-up models. Using this model, the most important effects and parameters are discussed. Also, fluid effects are included into the elastic multibody model for a qualitative assessment of its influence on the efficiency. The simulations are compared to experiments performed with a scaled model for two different cases. Two designs of a shift valve based on impact actuation are built as prototypes and tested.
%0 Journal Article
%1 fischer2013investigation
%A Fischer, Christian
%A Fritz, Karl-Peter
%A Eberhard, Peter
%A Kueck, Heinz
%D 2013
%J Archive of Applied Mechanics
%K kueck ifm_article from:holgerruehl
%N 8
%P 1171-1192
%R http://dx.doi.org/10.18419/opus-6847
%T Investigation and design of an impact actuated micro shift valve
%U http://dx.doi.org/10.18419/opus-6847
%V 83
%X New concepts for an impact actuated micro shift valve are presented which are useful, e.g. as implant for the hydrocephalus disease. Such an implant must fulfil requirements, such as using biocompatible materials, a separation of the actuator from the fluid, MRT safety and low-energy consumption in order to allow a battery-powered system. The concepts are based on the impacts that transmit an impulse into the interior of the valve through the casing, switching the valve. In order to predict the energy transmitted into the valve, an elastic multibody model is created, verified with full finite element simulations and experiments on scaled-up models. Using this model, the most important effects and parameters are discussed. Also, fluid effects are included into the elastic multibody model for a qualitative assessment of its influence on the efficiency. The simulations are compared to experiments performed with a scaled model for two different cases. Two designs of a shift valve based on impact actuation are built as prototypes and tested.
@article{fischer2013investigation,
abstract = {New concepts for an impact actuated micro shift valve are presented which are useful, e.g. as implant for the hydrocephalus disease. Such an implant must fulfil requirements, such as using biocompatible materials, a separation of the actuator from the fluid, MRT safety and low-energy consumption in order to allow a battery-powered system. The concepts are based on the impacts that transmit an impulse into the interior of the valve through the casing, switching the valve. In order to predict the energy transmitted into the valve, an elastic multibody model is created, verified with full finite element simulations and experiments on scaled-up models. Using this model, the most important effects and parameters are discussed. Also, fluid effects are included into the elastic multibody model for a qualitative assessment of its influence on the efficiency. The simulations are compared to experiments performed with a scaled model for two different cases. Two designs of a shift valve based on impact actuation are built as prototypes and tested.},
added-at = {2023-07-12T16:39:43.000+0200},
author = {Fischer, Christian and Fritz, Karl-Peter and Eberhard, Peter and Kueck, Heinz},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/203c849ab73892878acb40eb64d99f798/ifm},
doi = {http://dx.doi.org/10.18419/opus-6847},
interhash = {2e9a67cb3881dc75e1087e84a4087230},
intrahash = {03c849ab73892878acb40eb64d99f798},
issn = {14320681},
journal = {Archive of Applied Mechanics},
keywords = {kueck ifm_article from:holgerruehl},
number = 8,
pages = {1171-1192},
refid = {Fischer2013},
timestamp = {2023-07-12T16:39:43.000+0200},
title = {Investigation and design of an impact actuated micro shift valve},
url = {http://dx.doi.org/10.18419/opus-6847},
volume = 83,
year = 2013
}
