StingRAY Structural Optimization Final Technical Report

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The overall project objective is to materially decrease the leveled cost of energy (LCOE) of the Columbia Power (CPower) StingRAY utility-scale wave energy converter (WEC). This will be achieved by reducing structural material and manufacturing costs and increasing energy output. In this Project, improving the overall Power-to-Weight ratio (PWR) is accomplished through lowering design margins?allowing for weight reduction and more efficient, cost-effective WEC manufacturing and assembly?and by optimizing mass-related WEC performance parameters, such as center of gravity and system inertia.

A mixed materials approach to further structural optimization was developed under this Project and validated with extensive laboratory structural testing. This approach substitutes fiber-reinforced plastic (FRP) for steel where appropriate. The benefits of steel are maintained where most useful, for instance at structural joints where the stiffness of steel is required, and the complex geometry is more readily fabricated with steel. However, there are structural spans whose simple shapes are readily fabricated with mandrel-wound FRP and where significant cost and weight savings can be found. An adhesive, double lap shear joint is used to join the FRP and steel subcomponents.

Citation Formats

TY - DATA AB - The overall project objective is to materially decrease the leveled cost of energy (LCOE) of the Columbia Power (CPower) StingRAY utility-scale wave energy converter (WEC). This will be achieved by reducing structural material and manufacturing costs and increasing energy output. In this Project, improving the overall Power-to-Weight ratio (PWR) is accomplished through lowering design margins?allowing for weight reduction and more efficient, cost-effective WEC manufacturing and assembly?and by optimizing mass-related WEC performance parameters, such as center of gravity and system inertia. A mixed materials approach to further structural optimization was developed under this Project and validated with extensive laboratory structural testing. This approach substitutes fiber-reinforced plastic (FRP) for steel where appropriate. The benefits of steel are maintained where most useful, for instance at structural joints where the stiffness of steel is required, and the complex geometry is more readily fabricated with steel. However, there are structural spans whose simple shapes are readily fabricated with mandrel-wound FRP and where significant cost and weight savings can be found. An adhesive, double lap shear joint is used to join the FRP and steel subcomponents. AU - Lenee-Bluhm, Pukha DB - Marine and Hydrokinetic Data Repository DP - Open EI | National Renewable Energy Laboratory DO - KW - MHK KW - Marine KW - Hydrokinetic KW - Renewable Energy KW - Wave Energy Converter KW - Offshore KW - Hybrid Materials KW - Structure KW - Hull KW - FRP KW - Fiber-reinforced plastic KW - LCOE LA - English DA - 2020/08/05 PY - 2020 PB - Columbia Power Technologies, Inc. T1 - StingRAY Structural Optimization Final Technical Report UR - https://mhkdr.openei.org/submissions/351 ER -
Export Citation to RIS
Lenee-Bluhm, Pukha. StingRAY Structural Optimization Final Technical Report. Columbia Power Technologies, Inc., 5 August, 2020, Marine and Hydrokinetic Data Repository. https://mhkdr.openei.org/submissions/351.
Lenee-Bluhm, P. (2020). StingRAY Structural Optimization Final Technical Report. [Data set]. Marine and Hydrokinetic Data Repository. Columbia Power Technologies, Inc.. https://mhkdr.openei.org/submissions/351
Lenee-Bluhm, Pukha. StingRAY Structural Optimization Final Technical Report. Columbia Power Technologies, Inc., August, 5, 2020. Distributed by Marine and Hydrokinetic Data Repository. https://mhkdr.openei.org/submissions/351
@misc{MHKDR_Dataset_351, title = {StingRAY Structural Optimization Final Technical Report}, author = {Lenee-Bluhm, Pukha}, abstractNote = {The overall project objective is to materially decrease the leveled cost of energy (LCOE) of the Columbia Power (CPower) StingRAY utility-scale wave energy converter (WEC). This will be achieved by reducing structural material and manufacturing costs and increasing energy output. In this Project, improving the overall Power-to-Weight ratio (PWR) is accomplished through lowering design margins?allowing for weight reduction and more efficient, cost-effective WEC manufacturing and assembly?and by optimizing mass-related WEC performance parameters, such as center of gravity and system inertia.

A mixed materials approach to further structural optimization was developed under this Project and validated with extensive laboratory structural testing. This approach substitutes fiber-reinforced plastic (FRP) for steel where appropriate. The benefits of steel are maintained where most useful, for instance at structural joints where the stiffness of steel is required, and the complex geometry is more readily fabricated with steel. However, there are structural spans whose simple shapes are readily fabricated with mandrel-wound FRP and where significant cost and weight savings can be found. An adhesive, double lap shear joint is used to join the FRP and steel subcomponents.
}, url = {https://mhkdr.openei.org/submissions/351}, year = {2020}, howpublished = {Marine and Hydrokinetic Data Repository, Columbia Power Technologies, Inc., https://mhkdr.openei.org/submissions/351}, note = {Accessed: 2025-04-23} }

Details

Data from Aug 5, 2020

Last updated Dec 6, 2021

Submitted Dec 6, 2020

Organization

Columbia Power Technologies, Inc.

Contact

Pukha Lenee-Bluhm

541.368.5033

Authors

Pukha Lenee-Bluhm

Columbia Power Technologies Inc.

DOE Project Details

Project Name WAVE ENERGY CONVERTER STRUCTURAL OPTIMIZATION THROUGH ENGINEERING AND EXPERIMENTAL ANALYSIS

Project Lead Yana Shininger

Project Number EE0006610

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