Fluid Rotor With Balancing Mass Support Ribs
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Solution Overview
Problem
Prior art rotors for turbine devices lack a convenient means for balancing and adjusting resonant frequencies, which affects their longevity and cost-effectiveness.
Innovation Solution
Incorporating spaced airfoil-shaped support ribs with connecting bosses and intermediate balancing masses to achieve balanced and cost-effective assembly, where the ribs are arranged perpendicularly to the geometrical axis and the cross-section is convex, allowing for adjustment of resonant frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If prior art rotor design is used, then construction cost is reduced, but balancing capability and resonant frequency adjustment are insufficient
Solution Approach 1:
The support ribs are designed to integrate multiple functions: structural support, balancing mass integration, and resonant frequency adjustment. The connecting bosses on the ribs provide both structural connection and mounting points for balancing masses, merging support and balancing functions into a single component system.
Solution Approach 2:
The support ribs serve multiple purposes simultaneously: they provide structural support between flightings, act as mounting structures for balancing masses, and enable resonant frequency adjustment. This multi-functionality reduces the need for separate balancing components, addressing the contradiction between improved balancing capability and reduced structural complexity.
2Duration of action of stationary object
If prior art rotor design is used, then manufacturing simplicity is maintained, but longevity is reduced due to improper balancing
Solution Approach 1:
The support ribs are pre-configured with connecting bosses that have integrated balancing masses attached at predetermined locations. This preliminary configuration of balancing elements during rib manufacturing simplifies final rotor assembly, as the balancing function is already prepared rather than requiring separate balancing operations after assembly.
Solution Approach 2:
The support ribs with integrated balancing masses provide self-balancing capability to the rotor system. The balancing function is built into the structural components themselves, allowing the rotor to achieve proper balance without requiring external balancing equipment or complex post-assembly adjustments, thereby extending longevity while maintaining manufacturing simplicity.
3Adaptability or versatility
If prior art rotor design is used, then construction cost is reduced, but resonant frequency adjustment capability is lacking
Solution Approach 1:
The support ribs with connecting bosses and integrated balancing masses provide a dynamic system where the mass distribution can be adjusted to change the rotor's resonant frequencies. The balancing masses can be positioned at different locations on the connecting bosses, allowing flexible adjustment of the rotor's dynamic characteristics without adding complex adjustment mechanisms.
Data Source
Figure 1~5
Figure 3
AI summary
A rotor having at least two flightings includes a plurality of elongated support ribs rigidly interconnecting at axialIy spaced intervals, the outer edge of a first flight ing with the inner edge o f the other flighting, the ribs having a connecting boss at a distal end and a balancing mass intermediate a proximal end and the distal end. A method of forming the rib is further included.