Instantel Blastmate III, Руководство оператора

Страница: 68 / 90

Chapter 5
5–14
BlastMate III Operator Manual
Figure 5.15 Manual Waveform Calculations on Compound
Waveforms.
a. Calculating Displacement:
Maximum Displacement (in.) =
T
2
A
T
2
A
1
1
2
2
π π
× + ×
Maximum Displacement (mm) =
T
2
A
T
2
A
1
1m
2
2m
π π
× + ×
b. Calculating Acceleration:
Maximum Acceleration (in./s
2
) =
2
T
A
2
T
A
1
1
2
2
π π
× + ×
Maximum Acceleration (mm/s
2
) =
2
T
A
2
T
A
1
1m
2
2m
π π
× + ×
5.6.4. Irregular Waveforms
T
A
T/4
AREA TO BE
MEASURED
Figure 5.16 Manual Waveform Calculations on Irregular Waveforms.
a. Calculating Displacement:
Maximum Displacement = area under curve measured by a planimeter.