Gas Turbine Blade Impulse Body Modules With Single-Cavity Detuning
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Solution Overview
Problem
Existing egg-box-like pulse detuning components for gas turbine blades are complex to manufacture, large, and require specific production based on the number of pulse bodies, limiting their efficiency and production simplicity.
Innovation Solution
A simplified impulse body module assembly with a one-piece housing containing a single or two cavities, each accommodating a spherical or cylindrical impulse body with movement play in a specific thrust direction, allowing for reduced manufacturing complexity and improved vibration reduction through impact contacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If egg-crate-like impulse detuning components with multiple cavities are used, then vibration reduction effectiveness is improved, but manufacturing complexity and device size increase
Solution Approach 1:
The impulse detuning component is divided into multiple modular assemblies, each containing a single cavity and impulse body. These modules can be manufactured independently and then combined to achieve the desired total number of impulse bodies, simplifying the manufacturing process while maintaining vibration reduction effectiveness.
Solution Approach 2:
A universal single-cavity impulse body module design is created that can be replicated and combined in various configurations to achieve different total numbers of impulse bodies. This universal module serves multiple functions depending on how many are assembled together, reducing the need for custom manufacturing for each configuration.
2Reliability
If egg-crate-like impulse detuning components with multiple cavities are used, then vibration reduction effectiveness is improved, but the size of the component increases
Solution Approach 1:
The component is segmented into compact modular units, each containing a single cavity. This allows for more efficient space utilization compared to a monolithic multi-cavity structure, as modules can be arranged optimally and connected with minimal material between them.
3Reliability
If custom production is required for each number of impulse bodies, then vibration reduction is optimized for specific cases, but productivity and manufacturing efficiency decrease
Solution Approach 1:
The universal single-cavity module design allows the same basic component to be used for different total impulse body counts by simply varying the number of modules assembled. This eliminates the need for custom tooling and production processes for each configuration, significantly improving manufacturing efficiency while still allowing optimization for specific vibration reduction requirements.
Solution Approach 2:
Multiple identical single-cavity modules are nested or assembled together to create the final multi-impulse-body component. This modular assembly approach allows for standardized production of individual modules that can then be combined in various quantities, improving productivity through repetition and standardization.
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 solution reduces manufacturing complexity and enhances vibration reduction in gas turbine blades by using a streamlined design with fewer components, improving the production and sealing of pulse body modules while maintaining effective impact contact characteristics.
Implementation Method 1
impact contact between the impulse bodies and cavities
Implementation Method 2
to reduce vibrations of gas turbine blades
Data Source
Figure 1~3
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Figure 5~7
AI summary
The present invention relates to an impulse body module assembly with at least two impulse body modules for a gas turbine blade (10), wherein each of the impulse body modules comprises a housing (1) having a first cavity (2) which is closed by a first cover (3) connected to the housing and in which a single first impulse body (4) is received with play in at least one first impact direction (S), wherein the at least two impulse body modules are connected to each other in a non-destructively detachable or permanent manner and/or are arranged adjacent to one another in the first impact direction or transversely to the first impact direction. An assembly of impulse body modules, a gas turbine blade, an use of an impulse body module assembly, and a method for manufacturing an impulse body module assembly are also disclosed.