Vibration Machine Condition Monitoring with MEMS Inertial Sensors
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Vibrating machines experience high wear due to continuous vibration loads, leading to deviations in vibration behavior that can impair functionality and result in premature failure, necessitating effective condition monitoring to predict service life and prevent downtime.
Innovation Solution
An oscillating machine equipped with a condition monitoring device featuring micro-electromechanical inertial sensors with three acceleration and three yaw rate sensors, combined with piezoelectric sensors for structure-borne noise measurement, to accurately detect deviations in vibration behavior and monitor the health of components like bearings, gears, and exciters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If continuous vibration operation is maintained to fulfill the functional requirement of vibrating machines, then productivity is improved, but component wear increases leading to reduced reliability
Solution Approach 1:
The condition monitoring device performs measurements before complete component failure occurs. Sensors detect early signs of wear, damage, or abnormal vibrations in bearings, gears, and exciter components, allowing maintenance to be scheduled before catastrophic failure, thus maintaining continuous productivity while extending component service life through predictive maintenance
2Measurement precision
If multiple sensors are installed to monitor all critical components, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The condition monitoring device uses multiple types of sensors (acceleration sensors, piezoelectric sensors, temperature sensors) that serve multiple monitoring functions simultaneously. The same sensor system monitors bearings, gears, and exciter components, and can detect various failure modes (wear, damage, abnormal vibrations), reducing overall system complexity while maintaining comprehensive monitoring capability
Solution Approach 2:
Multiple sensor types and measurement functions are integrated into a single condition monitoring device with unified evaluation logic. The device combines vibration measurements, structure-borne noise measurements, and temperature measurements into one coordinated system, simplifying installation and data processing while improving measurement precision through multi-parameter monitoring
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 enables comprehensive monitoring of vibration behavior, allowing for early detection of damage and wear, thereby extending the service life of vibrating machines by providing precise status updates and predictive maintenance capabilities.
Implementation Method 1
at least one first micro-electromechanical inertial sensor, which has at least three acceleration sensors and at least three yaw rate sensors
Implementation Method 2
combined with piezoelectric sensors for structure-borne noise measurement
Data Source
Figure 1
AI summary
The invention relates to a vibrating machine comprising a condition-monitoring device that has a first vibrating body (1) supported flexibly in relation to a second vibrating body (2) or a base, a first exciter (3) that produces a targeted vibration behaviour of the vibrating machine or the vibrating body (1). The condition-monitoring device has at least one first micro-electro-mechanical device in the form of an inertial sensor with at least three acceleration sensors and at least three yaw-rate sensors.