Development of a Reliable Vibration Based Health Indicator for Monitoring the Lubricating Condition of the Toggle Clamping System of a Plastic Injection Molding Machine
Round 1
Reviewer 1 Report
The purpose of this paper is to derive a reliable vibration-based health indicator (HI), capable of monitoring the real-time lubricating condition of the toggle clamping system of a plastic injection moulding machine.
The authors are conducting experiments using time domain analysis, frequency domain analysis and structural response analysis to investigate their effectiveness.
Comment
- Please remove the border of the formula.
- K in eq.9 is not correct. The correct variable is KE.
Page 9
- It is necessary to explain why it was re-lubricated in cycles 150, 330 and 530. Is it from the result of the experiment? Is it an automatic judgment?
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Reviewer 2 Report
The paper is sufficiently clear, but I have some comments that should be addressed before the paper publication:
- A PCB 352A24 sensor was used, which has a frequency bandwidth of 1.0 to 8000 Hz. The vibration signal was recorded at a sampling rate of 50kHz. Was signal filtering performed before determining the RMS ratio? Filtering the signal will only determine the RMS value for the frequency band of the sensor. Otherwise, the RMS is determined incorrectly.
- With what time constant was the RMS value determined, and on what basis was it chosen? Please complete the text.
- Witch characteristic frequencies were taken to determine HI_FC. Please complete the text.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf