Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator
The positive end-expiratory pressure (PEEP) valve is important in the regulation of the pressure at the patient airways in devices for mechanical ventilation. The goal of this work is to derive a model that sufficiently captures the dynamics of the PEEP valve to be used for model-based control desig...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2022-09-01
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| Series: | Current Directions in Biomedical Engineering |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/cdbme-2022-1132 |
| _version_ | 1827998236074311680 |
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| author | Brütt Robin Männel Georg Brendle Christian Rostalski Philipp |
| author_facet | Brütt Robin Männel Georg Brendle Christian Rostalski Philipp |
| author_sort | Brütt Robin |
| collection | DOAJ |
| description | The positive end-expiratory pressure (PEEP) valve is important in the regulation of the pressure at the patient airways in devices for mechanical ventilation. The goal of this work is to derive a model that sufficiently captures the dynamics of the PEEP valve to be used for model-based control design. This paper describes the development of a model for common PEEP valve designs, thus allowing an adoption for different devices. A simplified first principle model with one mechanical degree of freedom is derived, under the assumption that the valve’s membrane behaves similar to a massspring- damper system. Following a grey-box model approach, physical parameters were lumped together and experimentally determined or identified from acquired data. Therefore, a valve test bench was developed to record various series of measurements. It was possible to determine a suitable flow factor which describes the correlation between flow, valve opening and upstream pressure. Additionally, a damping coefficient was estimated, with which the model achieves a good fit to the measured data at low dynamics and flows. |
| first_indexed | 2024-04-10T05:40:34Z |
| format | Article |
| id | doaj.art-0091489f774444119bb88c219e051090 |
| institution | Directory Open Access Journal |
| issn | 2364-5504 |
| language | English |
| last_indexed | 2024-04-10T05:40:34Z |
| publishDate | 2022-09-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Current Directions in Biomedical Engineering |
| spelling | doaj.art-0091489f774444119bb88c219e0510902023-03-06T10:24:52ZengDe GruyterCurrent Directions in Biomedical Engineering2364-55042022-09-018251651910.1515/cdbme-2022-1132Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil ActuatorBrütt Robin0Männel Georg1Brendle Christian2Rostalski Philipp3Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering, Monkhofer Weg 239a,Lubeck, GermanyFraunhofer Research Institution for Individualized and Cell-Based Medical Engineering,Lubeck, GermanyDragerwerk AG & Co. KGaA,Lubeck, GermanyFraunhofer Research Institution for Individualized and Cell-Based Medical Engineering,Lubeck, GermanyThe positive end-expiratory pressure (PEEP) valve is important in the regulation of the pressure at the patient airways in devices for mechanical ventilation. The goal of this work is to derive a model that sufficiently captures the dynamics of the PEEP valve to be used for model-based control design. This paper describes the development of a model for common PEEP valve designs, thus allowing an adoption for different devices. A simplified first principle model with one mechanical degree of freedom is derived, under the assumption that the valve’s membrane behaves similar to a massspring- damper system. Following a grey-box model approach, physical parameters were lumped together and experimentally determined or identified from acquired data. Therefore, a valve test bench was developed to record various series of measurements. It was possible to determine a suitable flow factor which describes the correlation between flow, valve opening and upstream pressure. Additionally, a damping coefficient was estimated, with which the model achieves a good fit to the measured data at low dynamics and flows.https://doi.org/10.1515/cdbme-2022-1132positive end-expiratory pressure valvesimplified dynamic modelparameter estimation |
| spellingShingle | Brütt Robin Männel Georg Brendle Christian Rostalski Philipp Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator Current Directions in Biomedical Engineering positive end-expiratory pressure valve simplified dynamic model parameter estimation |
| title | Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator |
| title_full | Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator |
| title_fullStr | Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator |
| title_full_unstemmed | Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator |
| title_short | Modelling of a Positive End-Expiratory Pressure Valve with a Voice-coil Actuator |
| title_sort | modelling of a positive end expiratory pressure valve with a voice coil actuator |
| topic | positive end-expiratory pressure valve simplified dynamic model parameter estimation |
| url | https://doi.org/10.1515/cdbme-2022-1132 |
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