Turbo-generator Stator Core Suspension Using Flexible Wire Members
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Solution Overview
Problem
Current vibration attenuation systems for turbo-generators, such as spring bars, are expensive and time-consuming to manufacture and install, and do not provide equivalent or superior vibration isolation compared to the proposed solution.
Innovation Solution
A suspension system using flexible wire members angled at various locations to attach the stator core to the rigid frame structure, secured without welding, providing a tunable isolation system that reduces construction time and material costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If spring bars or similar rigid attenuation systems are used to attach the stator core to the frame structure, then vibration attenuation is achieved, but manufacturing cost and installation complexity increase due to small tolerance requirements
Solution Approach 1:
The patent changes the physical parameters of the attachment system by replacing rigid spring bars with flexible wire members. This parameter change allows for larger tolerance ranges in manufacturing and installation while maintaining vibration attenuation performance, directly resolving the contradiction between reliability and ease of manufacture
Solution Approach 2:
The patent employs flexible wire members instead of rigid attenuation components. These flexible wires can deform to accommodate manufacturing tolerances and installation variations while still providing the necessary vibration isolation, thus improving ease of manufacture without sacrificing vibration attenuation effectiveness
2Strength
If welding is used to secure attenuation components to the frame structure, then structural integrity is ensured, but construction time and material costs increase
Solution Approach 1:
The patent replaces the welding process (thermal/mechanical joining) with a mechanical securing system using clamps and tension members. This substitution eliminates the time-consuming welding operation while maintaining structural integrity through proven mechanical attachment methods, directly addressing the contradiction between strength and loss of time
Solution Approach 2:
The patent uses removable mechanical clamps and tension members instead of permanent welded joints. These components can be easily installed and removed without the need for welding equipment or skilled welders, significantly reducing construction time and material costs while providing sufficient structural integrity for the application
3Reliability
If rigid attenuation components with small tolerances are used, then vibration isolation performance is optimized, but material costs and service expenses increase
Solution Approach 1:
The patent changes the material parameters from rigid, precision-machined components to flexible wire members that can accommodate larger dimensional variations. This parameter change maintains vibration isolation performance through the flexibility and tunability of the wire system while using less expensive, more readily available materials
Solution Approach 2:
The patent employs inexpensive wire members and simple mechanical clamps instead of costly rigid attenuation components. These simpler components achieve the required vibration isolation through their flexibility and geometric configuration rather than precise manufacturing, significantly reducing material costs and service expenses
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively attenuates vibrations in the stator core, achieving equivalent or superior isolation to existing systems while reducing costs and installation time, with tensioned wire members transferring electromagnetic loads to the stator frame structure.
Implementation Method 1
a plurality of flexible tension members, each having a first end and a second end. The second end of each of the plurality of flexible tension members is secured to the stator frame and the first end of each of the plurality of flexible tension members is secured to the stator core
Implementation Method 2
each having a first end and a second end. The second end of each of the plurality of flexible tension members is secured to the stator frame and the first end of each of the plurality of flexible tension members is secured to the stator core
Data Source
AI summary
Embodiments of the invention relate generally to turbo-generators and, more particularly, to suspension systems for turbo-generators and the attenuation of vibration in a stator core induced by an electromagnetic load. In one embodiment, the invention provides a support clamp comprising: an arcuate body; a first affixation point; a second affixation point; and a securing point between the first and second affixation points, wherein each of the first and second affixation points includes a radially-oriented opening extending from an inner surface to an outer surface and the securing point includes an area adjacent to an angled opening extending from a first surface to a second surface, each of the first and second surfaces lying substantially perpendicular to the inner and outer surfaces of the arcuate body.