Resin Part Deterioration Diagnosis Using Accelerated Detection Member
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Solution Overview
Problem
Existing methods for diagnosing resin part deterioration, such as those involving infrared spectroscopy and chemical luminescence, are unreliable and destructive, making it difficult to accurately assess the environmental load and predict when resin parts in vehicles need replacement.
Innovation Solution
A method involving the fabrication of a deterioration detection part with a detection additional member that deteriorates faster and is easier to monitor, which is bonded or insert-molded onto the resin part, allowing for continuous surface resistance measurements and correlation-based estimation of resin part deterioration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing methods such as infrared spectroscopy and chemical luminescence are used to diagnose resin part deterioration, then the environmental load can be estimated, but the measurement is destructive and the result is not reliable
Solution Approach 1:
The patent introduces a detection additional member as an intermediary that accelerates deterioration under environmental loads and serves as a proxy indicator for the resin part's condition. This member is specifically designed to deteriorate faster and more predictably than the actual resin part, allowing reliable indirect measurement of environmental exposure without destroying the original component.
Solution Approach 2:
The detection additional member acts as a simplified copy or surrogate of the resin part, replicating the deterioration mechanism but with enhanced detectability. By monitoring this copy's degradation (through surface resistance changes), the system obtains reliable deterioration data without subjecting the actual resin part to destructive testing.
2Loss of information
If existing methods are used to estimate environmental load, then some deterioration information can be obtained, but the measurement involves destruction of parts
Solution Approach 1:
The detection additional member serves as a sacrificial intermediary that absorbs the harmful effect of environmental loading and deterioration. It is designed to deteriorate in place of the actual resin part, providing deterioration information while preserving the original component for continued use.
Solution Approach 2:
The detection additional member is designed as a consumable, short-lived component that deteriorates rapidly under environmental loads. It is replaced periodically, and its degradation history provides valuable information about the environmental conditions experienced by the resin part without requiring destruction of the main component.
3Reliability
If a detection additional member is added to the resin part, then deterioration can be monitored continuously, but the device complexity increases
Solution Approach 1:
The detection additional member incorporates a pigment whose properties change (such as surface resistance) in response to environmental deterioration. This provides a built-in, passive visual or electrical indicator of degradation that can be monitored continuously without complex active sensing systems.
Solution Approach 2:
The detection additional member is self-indicating through changes in its own physical properties (such as surface resistance) that directly reflect its deterioration state. This eliminates the need for complex external sensing equipment, as the component itself serves as the sensor.
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 method provides accurate and reliable monitoring of resin part deterioration, enabling timely replacement and improving vehicle durability management by correlating detection additional member data with resin part conditions.
Implementation Method 1
detecting, after an elapse of a predetermined period of time, a degree of the progress of the deterioration of the detection additional member added to the resin part
Data Source
AI summary
A method of diagnosing a deterioration of a resin part includes: fabricating a deterioration detection part by adding a detection additional member to the resin part, in which the detection additional member is faster in progress of a deterioration than the resin part, and the adding the detection additional member includes bonding the detection additional member to a surface of the resin part or insert-molding the detection additional member to the resin part; incorporating the deterioration detection part into a portion, of a vehicle, where the resin part is to be incorporated; detecting, after an elapse of a predetermined period of time, a degree of the progress of the deterioration of the detection additional member; and estimating the degree of the progress of the deterioration of the resin part, based on data on a correlation between the deterioration of the detection additional member and the deterioration of the resin part.