Stackable Nacelle Design for Wind Turbine Transport
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Solution Overview
Problem
Conventional wind turbine nacelles are increasingly large, leading to transport and assembly challenges due to their size, requiring substantial logistical and assembly resources.
Innovation Solution
A stackable nacelle design comprising two pieces with integral side walls at obtuse angles, allowing for easy stacking and transportation, with flanges for securing and enhancing structural rigidity, and optional features like semicircular side openings and seals for assembly around the rotor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If nacelles are made larger to accommodate increasingly large wind turbines, then the capacity and power generation capability are improved, but transport and assembly become more difficult requiring substantial logistical resources
Solution Approach 1:
The nacelle is divided into multiple stackable sections (first section, second section, third section) that can be manufactured, transported, and assembled separately. Each section has standardized dimensions allowing them to be stacked vertically on transport vehicles, converting a single large difficult-to-transport unit into multiple manageable modules that can be easily transported and assembled on-site.
2Ease of operation
If nacelles are assembled on-site from smaller plate-shaped elements, then transport difficulties are addressed, but substantial logistical and assembly resources are still required
Solution Approach 1:
The nacelle sections are designed to stack vertically within each other like nested dolls, with each section fitting into the space above or below another section. The first section has a bottom wall that receives the second section, which in turn receives the third section, creating a compact nested arrangement that simplifies both transport and assembly compared to flat plate assembly.
Solution Approach 2:
Multiple nacelle sections are combined through standardized mounting interfaces (flanges with bolts) to form a complete nacelle assembly. The sections are designed to mate together with precise alignment features, merging multiple simple components into a complex functional unit with reduced assembly complexity compared to traditional plate assembly methods.
Data Source
AI summary
A stackable nacelle for a wind turbine includes a first piece having a top wall and integral first side walls extending at a first obtuse angle from each edge of the top wall; and a second piece, for mating with the first piece, having a bottom wall and integral second side walls extending at a second obtuse angle from each edge of the bottom wall.