Honeycomb Vibration Propagation Member for Harsh-Fluid Stability

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Solution Overview

Problem

Existing vibration propagation members face challenges in maintaining stability and design flexibility when used with corrosive fluids or in high-temperature, high-humidity environments, and have limited control over partial characteristics due to single-material composition and restricted design freedom.

Innovation Solution

A vibration propagation member composed of multiple metal plates with a honeycomb pattern, bonded to a vibration means, allowing independent control of resonant frequencies and structural parameters such as thickness and gap distances to enhance stability and efficiency in harsh conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a single-material vibration propagation member is used, then the structure is simple and easy to manufacture, but the partial characteristics cannot be controlled and design freedom is limited

Engineering Contradiction:

Improveease of manufactureVSAvoiddesign freedom

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The vibration propagation member is divided into multiple layers, each made of different materials with specific acoustic impedance characteristics. This segmentation allows independent control of resonant frequencies and partial characteristics while maintaining manufacturability through standardized lamination processes.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention uses composite materials consisting of multiple layers with different acoustic properties (e.g., metal plates, resin materials, foam materials) bonded together. This composite structure enables precise control over vibration propagation characteristics, resonant frequencies, and adaptability to harsh environments while remaining manufacturable.

Inventive Principle:

Principle #40Composite materials

2Device complexity

If a simple disklike vibration propagation member is used, then the structure is simple, but stability in corrosive and high-temperature environments is poor

Engineering Contradiction:

Improvestructure complexityVSAvoidstability in harsh environments

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The vibration propagation member employs composite materials including metal plates (for strength and corrosion resistance), resin materials (for chemical inertness and temperature stability), and foam materials (for damping and environmental isolation). This composite construction provides superior stability in corrosive and high-temperature environments while maintaining reasonable structural complexity.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

Different regions of the vibration propagation member are assigned different materials with specific local functions: metal plates provide structural strength and corrosion resistance in critical areas, resin materials provide chemical inertness, and foam materials provide damping and environmental isolation. This local quality assignment enhances overall reliability in harsh environments.

Inventive Principle:

Principle #3Local quality

3Adaptability or versatility

If only thickness and external dimensions are adjustable, then the design space is limited, but high-accuracy vibration propagation cannot be achieved

Engineering Contradiction:

Improvedesign freedomVSAvoidvibration propagation accuracy

Core Design Contradiction:

Adaptability or versatilityVSMeasurement precision

Solution Approach 1:

The vibration propagation member is segmented into multiple adjustable layers, each with independent parameters including thickness, material composition, and acoustic impedance. This segmentation enables precise control over vibration propagation accuracy through optimization of individual layer characteristics while providing extensive design freedom.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention allows change in multiple parameters simultaneously: material composition of each layer, thickness of each layer, acoustic impedance ratios between layers, and geometric dimensions. This multi-parameter optimization enables high-accuracy vibration propagation while maintaining high design freedom and adaptability.

Inventive Principle:

Principle #35Parameter changes

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

Enables high-accuracy and stable vibration propagation in corrosive and high-humidity environments, with a high degree of design freedom, suitable for flowmeters and concentration meters.

Implementation Method 1

a vibration propagation member configured to operate by being bonded to one surface of a vibration means

Methodology Applied

Scientific EffectVibration propagation: Vibration

Implementation Method 2

bonded onto a piezoelectric member and used as an ultrasonic transceiver

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Data Source

PatentUS20250369785A1Vibration propagation member, vibration transceiver using the same, flowmeter, velocity meter, concentration meter, and manufacturing method

Publication Date: 2025.12.04 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

AI summary

A vibration propagation member is configured to operate by being bonded to one surface of a vibration means. The vibration propagation member includes: a top plate; a sidewall; and at least one vertical partition disposed perpendicularly to the top plate.