TEAMER: Riverine Hydrokinetics Torsional Cable Testing
BladeRunner Energy has developed a unique debris-resilient rotor that is uniquely suited to applications in remote Alaska rivers. Their unique topology couples a debris-resistant axial flow rotor to a floating power take-off (PTO) housing via a composite torsional cable. This torsional cable provides transmission of torque from the rotor to generator while allowing bending to facilitate rotor translation, pitch, and yaw in response to interaction with large debris. The cable will be submerged in water and acted upon by time-varying torsional and axial loads provided by hydraulic actuators. These loads are based on loading data collected during field testing, with the goal to accumulate cycles equal to extended of field operations. This data provides insight on the evolution of torsional cable stiffness over accumulated cycles and enable validation of cable structural models.
This data is from cyclical simultaneous torsional and axial loading on a torsional cable to simulate loading encountered during use as a driveshaft on a current energy converter (CEC). The torque and tension fluctuation due to changing inflow conditions in rivers. This testing accelerates the load cycling to investigate stress-strain and fatigue properties of these cables for this application.
This submission includes:
- Matlab code to process cable raw data and produce plots within the final report
- Raw cable data
- TEAMER Post Access Report
This project is part of the TEAMER RFTS 12 (request for technical support) program.
Citation Formats
TY - DATA
AB - BladeRunner Energy has developed a unique debris-resilient rotor that is uniquely suited to applications in remote Alaska rivers. Their unique topology couples a debris-resistant axial flow rotor to a floating power take-off (PTO) housing via a composite torsional cable. This torsional cable provides transmission of torque from the rotor to generator while allowing bending to facilitate rotor translation, pitch, and yaw in response to interaction with large debris. The cable will be submerged in water and acted upon by time-varying torsional and axial loads provided by hydraulic actuators. These loads are based on loading data collected during field testing, with the goal to accumulate cycles equal to extended of field operations. This data provides insight on the evolution of torsional cable stiffness over accumulated cycles and enable validation of cable structural models.
This data is from cyclical simultaneous torsional and axial loading on a torsional cable to simulate loading encountered during use as a driveshaft on a current energy converter (CEC). The torque and tension fluctuation due to changing inflow conditions in rivers. This testing accelerates the load cycling to investigate stress-strain and fatigue properties of these cables for this application.
This submission includes:
- Matlab code to process cable raw data and produce plots within the final report
- Raw cable data
- TEAMER Post Access Report
This project is part of the TEAMER RFTS 12 (request for technical support) program.
AU - Loeffler, Ben
A2 - Johnson, Donald
A3 - Duckworth, Derek
A4 - Roy, Sean
DB - Open Energy Data Initiative (OEDI)
DP - Open EI | National Laboratory of the Rockies
DO -
KW - MHK
KW - Marine
KW - Hydrokinetic
KW - energy
KW - power
KW - TEAMER
KW - RFTS12
KW - CEC
KW - current energy converter
KW - torsional cable
KW - Riverine
KW - code
KW - Matlab
KW - CSV
KW - raw data
KW - processed data
KW - PAR
KW - torsional loading
KW - axial loading
KW - post access report
LA - English
DA - 2026/01/12
PY - 2026
PB - University of Alaska Fairbanks
T1 - TEAMER: Riverine Hydrokinetics Torsional Cable Testing
UR - https://data.openei.org/submissions/8621
ER -
Loeffler, Ben, et al. TEAMER: Riverine Hydrokinetics Torsional Cable Testing. University of Alaska Fairbanks, 12 January, 2026, MHKDR. https://mhkdr.openei.org/submissions/683.
Loeffler, B., Johnson, D., Duckworth, D., & Roy, S. (2026). TEAMER: Riverine Hydrokinetics Torsional Cable Testing. [Data set]. MHKDR. University of Alaska Fairbanks. https://mhkdr.openei.org/submissions/683
Loeffler, Ben, Donald Johnson, Derek Duckworth, and Sean Roy. TEAMER: Riverine Hydrokinetics Torsional Cable Testing. University of Alaska Fairbanks, January, 12, 2026. Distributed by MHKDR. https://mhkdr.openei.org/submissions/683
@misc{OEDI_Dataset_8621,
title = {TEAMER: Riverine Hydrokinetics Torsional Cable Testing},
author = {Loeffler, Ben and Johnson, Donald and Duckworth, Derek and Roy, Sean},
abstractNote = {BladeRunner Energy has developed a unique debris-resilient rotor that is uniquely suited to applications in remote Alaska rivers. Their unique topology couples a debris-resistant axial flow rotor to a floating power take-off (PTO) housing via a composite torsional cable. This torsional cable provides transmission of torque from the rotor to generator while allowing bending to facilitate rotor translation, pitch, and yaw in response to interaction with large debris. The cable will be submerged in water and acted upon by time-varying torsional and axial loads provided by hydraulic actuators. These loads are based on loading data collected during field testing, with the goal to accumulate cycles equal to extended of field operations. This data provides insight on the evolution of torsional cable stiffness over accumulated cycles and enable validation of cable structural models.
This data is from cyclical simultaneous torsional and axial loading on a torsional cable to simulate loading encountered during use as a driveshaft on a current energy converter (CEC). The torque and tension fluctuation due to changing inflow conditions in rivers. This testing accelerates the load cycling to investigate stress-strain and fatigue properties of these cables for this application.
This submission includes:
- Matlab code to process cable raw data and produce plots within the final report
- Raw cable data
- TEAMER Post Access Report
This project is part of the TEAMER RFTS 12 (request for technical support) program.},
url = {https://mhkdr.openei.org/submissions/683},
year = {2026},
howpublished = {MHKDR, University of Alaska Fairbanks, https://mhkdr.openei.org/submissions/683},
note = {Accessed: 2026-03-25}
}
Details
Data from Jan 12, 2026
Last updated Feb 12, 2026
Submitted Jan 12, 2026
Organization
University of Alaska Fairbanks
Contact
Ben Loeffler
907.888.2569
Authors
Original Source
https://mhkdr.openei.org/submissions/683Research Areas
Keywords
MHK, Marine, Hydrokinetic, energy, power, TEAMER, RFTS12, CEC, current energy converter, torsional cable, Riverine, code, Matlab, CSV, raw data, processed data, PAR, torsional loading, axial loading, post access reportDOE Project Details
Project Name Testing Expertise and Access for Marine Energy Research
Project Lead Lauren Ruedy
Project Number EE0008895
