Organizational, DS, GS, and depot maintenance manual : lubricating and servicing unit, trailer mounted; 16 CMF compressor, gasoline driven, (Gray Company, Inc. mode1 251-437), FSN 4930-892-5067.

"February 1965."

Unit, intermediate direct support, and intermediate general support maintenance repair parts and special tools list for compressor unit, reciprocating, 5 cfm, 175 psi, gasoline engine driven, hand truck mounted, model number ZPC 175/5, NSN 4310-01-190-0285.

"7 August 1989."

Operator's, unit, direct support, and general support maintenance for compressor, air, rotary screw, 750 cfm, 100 psi, wheel-mounted, DED, Sullair model 750 DP (NSN 4310-01-053-3891).

"May 1993."

Organizational maintenance repair parts and special tools lists : lubricating and servicing unit, trailer mounted, 15 CMF compressor, gasoline driven, (Gray model 251-437), FSN 4930-892-5067.

"November 1968."

Direct and general support maintenance repair parts and special tools list (including depot maintenance repair parts and special tools) for lubricating and servicing unit, power operated, trailer mounted, 23 CFM, compressor, reciprocating, GED (Elliot machine model ENG 3), NSN 4930-00-935-4451.

"9 April 1987."

Direct support and general support maintenance manual : lubricating and servicing unit, power operated, trailer mounted, 23 CFM, compressor, reciprocating, gasoline driven, (Henry Spen model 901765-1), FSN 4930-017-9167.

"April 1970."

Operator, organizational, direct support and general support maintenance manual : lubricating and servicing unit, power operated, trailer mounted, 15 CFM compressor, reciprocating gasoline engine driven, (Elliot Machine Works, Inc. model ENG-3A), FSN 4930-842-8315.

"November 1974."

Operator and organizational maintenance manual : lubricating and servicing unit, power operated, trailer mounted, 23 cfm compressor, reciprocating, gasoline driven (Henry Spen model 901765-1), FSN 4930-017-9167.

Includes index.

Direct support and general support maintenance repair parts and special tools lists ... : lubricating and servicing unit, power operated, trailer mtd, 23 cfm compressor, reciprocating, gasoline driven (Henry Spen model 901765-1), NSN 4930-00-017-9167.

"10 October 1980."

Operator, organizational, direct support, and general support maintenance manual : lubricating and servicing unit, power operated, trailer mounted, 15 cfm compressor, reciprocating gasoline engine driven (Elliot Machine Works, Inc. model ENG-3A), FSN 4930-842-8315.

"November 1974."

Direct and general support and depot maintenance repair parts and special tools lists : lubricating and servicing unit, trailer mounted, 15 cfm compressor, gasoline driven (Gray model 251-437), FSN 4930-892-5067.

"November 1968."

Series of articles on compressor and fan design written by German engineers.

Composed primarily of articles written by Bruno Eckert's group, Forschungsinstitut für Kraftfahrwesen und Fahrzeugmotoren, Technische Hochschule, Stuttgard. Translated by various groups and individuals both in and out of the Navy Dept. Preliminary translation done by German prisoners of war.

Mode Localization in a Nearly Cyclic Symmetric System

Thesis (Ph.D.)--University of Washington, 2016-06

An investigation into vibration criteria for rotating machinery

Concern had been expressed by engineers of the Shell Chemical Company regarding the validity of existing vibration criteria for rotating machinery. A survey showed that existing criteria were based solely on the amplitude of vibration, normally of the bearing housings, with no allowance being made for the dynamic properties of the support1ng structure. The feasibility of measuring the mechanical impedance of bearing supports in order to assess the severity of vibration generated by a machine has been investigated. It is suggested that in many cases the oscillatory bearing force levels obtained for these measurements will provide a quantitative indication of severity. Theoretical and experimental work has been conducted on a model rig, comprising a flexible shaft running in journal bearings housed in flexible, asymmetric supports. The accuracy with which the system behaviour could be predicted using measured support impedances is discussed together with the extraction of uncoupled support impedances from measurements on the complete rotating system. Access was available to several industrial centrifugal compressors. To enable the bearing support impedances of these machines to be measured on site considerable attention has been paid to the evolution of a technique involving the use of transient excitation. To develop this technique the model rig and a large rotary converter have been used as test structures. Methods have also been devised and developed for the analysis of the transient impedance data.

Effective end wall profiling rules for a highly loaded compressor cascade

This paper presents a numerical study of a linear compressor cascade to investigate the effective end wall profiling rules for highly-loaded axial compressors. The first step in the research applies a correlation analysis for the different flow field parameters by a data mining over 600 profiling samples to quantify how variations of loss, secondary flow and passage vortex interact with each other under the influence of a profiled end wall. The result identifies the dominant role of corner separation for control of total pressure loss, providing a principle that only in the flow field with serious corner separation does the does the profiled end wall change total pressure loss, secondary flow and passage vortex in the same direction. Then in the second step, a multi-objective optimization of a profiled end wall is performed to reduce loss at design point and near stall point. The development of effective end wall profiling rules is based on the manner of secondary flow control rather than the geometry features of the end wall. Using the optimum end wall cases from the Pareto front, a quantitative tool for analyzing secondary flow control is employed. The driving force induced by a profiled end wall on different regions of end wall flow are subjected to a detailed analysis and identified for their positive/negative influences in relieving corner separation, from which the effective profiling rules are further confirmed. It is found that the profiling rules on a cascade show distinct differences at design point and near stall point, thus loss control of different operating points is generally independent.