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Mathematical Problems in Engineering
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2019
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Article
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Tab 6
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Research Article
Effect of Thermal Cycling on Operational Characteristics and Lifetime Prediction of Space Pulse Tube Refrigerator
Table 6
Predicted lifetimes of the PTRs under thermal cycling condition.
Prototype
Cycle to failure (
N
f
)
Lifetime prediction (hour)
Type A No. 1
690
115900
Type A No. 2
753
126500
Type B No. 1
733
123100
Type B No. 2
748
125600