EXPLORATORY DEVELOPMENT OF GAS SPRINGS AS APPLIED TO ROTARY-RECIPROCATING CRYOGENIC COOLERS.

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Abstract:

The purpose of this program was the exploratory development of gas springs as applied to rotary-reciprocating cryogenic cooling equipment. A gas spring mathematical model was developed and used to design an experimental test apparatus. The test apparatus was fabricated and subjected to testing which demonstrated the design concept and execution to be workable and practical. Power losses were larger than anticipated and indicate that a more sophisticated analytical model is necessary for accurate sizing of gas spring systems. Losses due to irreversible heat transfer in the gas spring chamber appear to be the most significant cause of power loss. Further testing is necessary to evaluate performance over a wider range of frequencies and stroke amplitudes and to determine what effect chamber geometry has on these irreversible losses. Author

Author(s):
Mccullough, John E.
Author Organization(s):
LITTLE (ARTHUR D) INC CAMBRIDGE MASS
Descriptive Note:
Final rept. 28 Jan 65-31 Mar 67,
Pagination:
0055

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
ADL-C-67165-F, AFFDL-TR-67-62
Contract/Grant Number(s):
AF 33(615)-2448
Task Number(s):
147001
Project Number(s):
AF-1470
Monitor Series:
TR-67-62
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*SPRINGS, *PNEUMATIC EQUIPMENT, CRYOGENICS, ROTARY PUMPS, RECIPROCATING PUMPS, COOLING, COMPUTERS, LEAKAGE(FLUID), HEAT TRANSFER, BOUNDARY VALUE PROBLEMS, EQUATIONS OF MOTION, TEST METHODS, ACCEPTABILITY, OPTIMIZATION, PRESSURE, KINETIC ENERGY, HARMONIC ANALYSIS, COUPLINGS, CONTAINERS, GAS BEARINGS
Field(s)/Group(s):
Hydraulic and Pneumatic Equipment
Keyword(s):
GAS SPRINGS
Report Date:
1967 May 01