Modular Silencer Baffle Assembly for Gas Turbine Noise and Vibration
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Solution Overview
Problem
Noise and vibration caused by intake air moving through air ducts in gas turbine engines are not effectively mitigated by existing silencers, leading to undesirable engine vibration.
Innovation Solution
A silencer baffle system comprising modular baffle sections with lockable coupling structures and sound absorption materials, where baffle sections are aligned in rows and columns within the air duct, stabilized by rods, and secured via mounting interfaces to reduce noise and vibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If existing silencers are used to reduce noise and vibration from intake air, then noise attenuation is achieved, but the vibration is not effectively mitigated and engine vibration remains undesirable
Solution Approach 1:
The silencer is divided into multiple modular baffle sections that can be independently assembled and configured. Each section contains sound absorption material and can be locked to adjacent sections, allowing the system to be optimized for both noise attenuation and vibration reduction while maintaining flexibility in installation and maintenance.
2Ease of operation
If a modular baffle system with lockable coupling structures is used, then ease of assembly and disassembly is improved, but device complexity increases due to additional coupling mechanisms
Solution Approach 1:
The baffle system is segmented into modular sections with standardized lockable coupling structures. Each section can be independently assembled and then locked to adjacent sections, enabling easy assembly and disassembly without requiring complex fastening mechanisms throughout the entire structure.
Solution Approach 2:
The lockable coupling structures integrate multiple functions: mechanical connection between sections, alignment guidance, and secure locking all in a single integrated feature. This merging of functions reduces the number of separate components needed while maintaining ease of assembly.
3Stability of the object's composition
If baffle sections are aligned in rows and columns with stabilizing rods, then structural stability and noise attenuation are improved, but manufacturing complexity increases
Solution Approach 1:
The baffle system is divided into standardized sections that can be manufactured independently using consistent processes. Each section includes integrated features for alignment and stabilization, allowing modular assembly that simplifies the overall manufacturing process while ensuring stable configuration.
Solution Approach 2:
The baffle sections are designed with universal features including standardized coupling interfaces, integrated alignment elements, and configurable sound absorption material. These multi-functional design elements reduce manufacturing complexity by using the same basic components and processes across all sections.
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 silencer baffle system significantly reduces noise and vibration in gas turbine engines by utilizing modular baffle sections with sound absorption materials and stabilizing rods, enhancing the aerodynamic shape and noise attenuation within the air duct.
Implementation Method 1
sound absorption materials
Implementation Method 2
sound absorption materials... to reduce noise and vibration
Data Source
Figure 1
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Figure 3~4
AI summary
A method includes assembling a silencer baffle (28) configured to mount in a fluid conduit along a fluid flow path, where assembling the silencer baffle (28) includes coupling together a plurality of baffle sections (36) via mating interlock structures (42).