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Standard

Vertical Dynamic Balancing Systems – Isolating Repeatability Issues in Challenging Applications
2021-05-26
WIP
ARP8911
This new Aerospace Recommended Practice will serve as a practical resource that offers guidance to both the machine operator and Process Engineer for isolating the source(s) of non-repeatability in measured unbalance data. The content of this standard addresses: • Vertical Dynamic Machine Capability to achieve the specified unbalance tolerances and repeat within those tolerances • Tooling Capability to repeat within the specified unbalance tolerances • Rotor characteristics that may preclude repeating within the required unbalance tolerances.
Standard

STATIC BALANCING EQUIPMENT FOR JET ENGINE COMPONENTS COMPRESSOR AND TURBINE - ROTATING TYPE FOR MEASURING UNBALANCE IN ONE TRANSVERSE PLANE
1975-01-01
HISTORICAL
ARP588A
This ARP specifies those requirements of balancing equipment which make it suitable for the subject class of work. It specifies: a Sensitivity b Accuracy of indication of amount and angle of unbalance. c Ability to measure static unbalance unaffected by couple unbalance. d Machine capacity relating to weight and physical dimensions of the rotors which can be balanced. e Balancing speed of rotation. f Standard balancing machine drive adapter flange dimensions. g Power requirements.
Standard

Proper use of Tooling Compensation
2018-01-05
WIP
AIR6972
To inform users on proper use, procedures and common errors when using electronic compensation for tooling on horizontal and vertical balancing machines
Standard

Periodic Surveillance Procedures for Horizontal Dynamic Balancing Machines
2012-12-17
HISTORICAL
ARP1340A
This document specifies those requirements and procedures for periodic tests to insure maintenance of balance machine capabilities for balancing jet engine components. It will specify: (a) Requirements for tests (b) Calibration tests (c) Residual unbalance and accurate angle and amount indication tests (d) Plane separation test (e) End-drive system unbalance disturbance test
Standard

PERIODIC SURVEILLANCE PROCEDURES for HORIZONTAL DYNAMIC BALANCING MACHINES
2002-12-16
HISTORICAL
ARP1340
This document specifies those requirements and procedures for periodic tests to insure maintenance of balance machine capabilities for balancing jet engine components. It will specify: (a) Requirements for tests (b) Calibration tests (c) Residual unbalance and accurate angle and amount indication tests (d) Plane separation test (e) End-drive system unbalance disturbance test
Standard

PERIODIC SURVEILLANCE PROCEDURES FOR VERTICAL, STATIC, BALANCING MACHINES
2002-12-16
CURRENT
ARP1342
This document specifies those requirements and procedures for periodic tests to insure maintenance of balancing machine capabilities for balancing jet engine components. It will specify: (a) Requirements for tests. (b) Calibration tests. (c) Residual unbalance and accurate angle and amount indication tests. (d) Static-couple separation test.
Standard

Moment Weighing Systems – Single-Axis for Gas Turbine Blade Moment Weight Measurement
2016-11-28
WIP
ARP6914
The scope of these standards will relate to single-axis moment scales only. Topics covered include dimensional characteristics of single-axis moment scale interfaces, general tooling requirements, scale and tooling accuracy, and display instrument accuracy requirements. Additionally, general guidelines for qualification of equipment and tooling are included, as are general requirements for single-axis blade distribution software.
Standard

Methods and Criteria for the Balancing of Gas Turbine Rigid Rotors
2015-06-25
WIP
AS6327
This document establishes process parameters for gas turbine rotor balancing. Adherence to the recommendations made herein will facilitate attainment of the usually high degree of accuracy and precision required for jet engine rotor balance.
Standard

Horizontal Balancing Systems - Isolating Repeatability Issues in Challenging Applications
2023-06-05
CURRENT
ARP6911
This SAE Aerospace Recommended Practice will serve as a practical resource that offers guidance to both the machine operator and process engineer for isolating the source(s) of non-repeatability in measured unbalance data. The content of this standard addresses: Machine capability to achieve the specified unbalance tolerances and repeat within those tolerances. Tooling capability to repeat within the specified unbalance tolerances. Rotor characteristics that may preclude repeating within the required unbalance tolerances.
Standard

End Drive Adapters - Balancing Error Analysis
2017-10-24
WIP
AIR6967
This SAE Aerospace Information Report is to supplement content from ARP4163 pertaining to error analysis on the use of multiple drive adapter applications, on both vertical and horizontal balance machines. This new Aerospace Information Report will serve as a practical resource that offers guidance to the Machine Operator and Process Engineer.
Standard

Design Criteria for Balancing Machine Tooling
2012-12-17
CURRENT
ARP1382A
This document recommends general designs, tolerances, limits of application and suitable tooling, fixtures and accessories for mounting and driving jet engine rotors on horizontal and vertical balancing machines.
Standard

DESIGN CRITERIA FOR BALANCING MACHINE TOOLING
1995-10-01
HISTORICAL
ARP1382
This document recommends general designs, tolerances, limits of application and suitable tooling, fixtures and accessories for mounting and driving jet engine rotors on horizontal and vertical balancing machines.
Standard

Balancing Machines: Tooling Design Criteria
2016-10-05
WIP
ARP4163A
This document establishes general design criteria, tolerances, and limits of application for tooling, fixtures and accessories for mounting and driving gas turbine engine rotors on horizontal and vertical balancing machines. For your own safety, while using balancing tooling, regard the safety instructions of the individual supplier.
Standard

Balancing Machines - Tooling Management, Audit, and Control
2015-12-21
WIP
ARP6898
The goal of this new document is to provide criteria for managing, auditing, and controlling the use of rotating balancing tooling and associated support tools. A variety of subjects will be addressed including serialization and marking requirements, critical inspection criteria, performance tracking through tooling compensation trend analysis, handling of gage standards (rotor simulators, master blades, dummy blades, etc.), recommendations for periodic and preventive maintenance intervals, test recommendations to evaluate rotating tooling performance, requirements for traceable measures (such as torques, runouts, eccentricity, etc.), repeatability characterization, and criteria for return to service.
Standard

Balancing Machines - Description and Evaluation Horizontal, Two-Plane, Soft-Bearing Type for Gas Turbine Rotors
2012-12-17
CURRENT
ARP587C
The specific performance requirements preceding each test in Section 9 have been written to define certain characteristics of the machine. Conformance with the tests constitutes what is considered minimum proof that the machine will meet these requirements. The test procedures will not prove conformance with all requirements over the full range of all variables, neither will they measure nor define the exact reasons for nonconformance in a given test. Failure of a machine to conform may be due to shortcomings in specific components or to more general reasons such as lack of ruggedness, improper leveling or anchoring to the floor, etc.
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