Pneumatic Vibrator Monitoring via Pressure Detection

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Solution Overview

Problem

Existing vibratory testing systems face issues with non-uniform vibration responses due to reduced performance of individual vibrators, leading to potential false representations of component strengths and weaknesses, and existing monitoring solutions are either costly or not integrated into the system design.

Innovation Solution

A method and apparatus that utilize a pneumatic vibration testing system with each vibrator connected to a pressurized air system through a valve, where air is supplied in measured bursts, and pressure between the valve and vibrator is monitored, with a controller comparing this pressure to a known pressure to detect failures and issue alerts or adjust airflow, incorporating pressure transducers and electronically controlled solenoid valves.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple vibrators are used to create uniform vibration response, then all components are exposed to equal vibration levels, but if one or more vibrators have reduced performance, the vibration response becomes non-uniform leading to false representation of component strengths and weaknesses

Engineering Contradiction:

Improveaccuracy of stress testingVSAvoidmonitoring system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the monitoring function into individual segments by placing a pressure sensor on each vibrator's air supply line. This allows independent monitoring of each vibrator's performance, enabling detection of non-uniform vibration responses caused by individual vibrator failures without requiring complex system-wide monitoring equipment.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent uses air pressure as an intermediary parameter to indirectly monitor vibrator performance. Instead of directly measuring vibration output or mechanical performance, the system monitors the air pressure supplied to each vibrator, which serves as a reliable indicator of vibrator health and performance uniformity.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Measurement precision

If sensors are attached directly to each vibrator to monitor impact strength, then vibrator performance can be tracked, but this introduces extra parts that may fail and increases cost

Engineering Contradiction:

Improvevibrator performance monitoring accuracyVSAvoidnumber of monitoring components

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces direct mechanical sensing on the vibrator with a pneumatic sensing system. By monitoring the air pressure in the supply line rather than attaching mechanical sensors to the vibrator itself, the system achieves monitoring functionality with simpler, more reliable components.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If pressure monitoring is implemented between the valve and vibrator, then vibrator failures can be detected, but this requires integration into the system design

Engineering Contradiction:

Improvevibrator failure detection capabilityVSAvoidsystem integration complexity

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges the monitoring function with the existing pneumatic supply system by placing pressure sensors directly in the air supply lines that already connect to each vibrator. This integration approach allows failure detection capability to be added without creating separate monitoring subsystems, thereby simplifying manufacturing and system assembly.

Inventive Principle:

Principle #5Merging (Combining)

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

This solution ensures uniform vibration testing by detecting and addressing individual vibrator failures, preventing non-uniform stress on components and providing improved monitoring integrated into the system design, thereby enhancing the accuracy and reliability of testing without adding extra costly components.

Implementation Method 1

the pressure between the valve and the vibrator is monitored

Methodology Applied

Scientific EffectPressure measurement:

Implementation Method 2

each vibrator is connected to a pressurized air system through an output of a valve

Methodology Applied

Scientific EffectSolenoid actuation: Solenoid

Data Source

PatentEP2209565B1Monitoring of independent vibrators

Publication Date: 2018.01.10 VENTUREDYNE LTD

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AI summary

In an embodiment of the present invention a method of monitoring individual vibrators in a pneumatic vibration testing system is disclosed. The method includes providing a pneumatic vibration testing system including at least one vibrator, where each vibrator is connected to a pressurized air system through an output of a valve. Pressurized air is then supplied at a known pressure to an input of the valve. When that air is supplied to the valve the valve releases air in measured bursts to the vibrator and the pressure between the valve and the vibrator is monitored. The pressure between the valve and the vibrator is compared to the known pressure, which indicates if the vibrator is failing or has failed. In preferred embodiments, the testing system includes a plurality of vibrators and an equal plurality of valves, each vibrator is connected to the pressurized air system through a single valve.