49.045 结构和结构元件 标准查询与下载



共找到 464 条与 结构和结构元件 相关的标准,共 31

4.1 Scratches exist on all transparent plastic surfaces. Usually they are very fine scratches from cleaning operations that are not visible when looking through the plastic. Deeper scratches may result from careless cleaning or handling. While these may not be deep enough to affect the structural integrity of the part, their appearance in certain locations may be distracting to the observer looking through the plastic. Therefore, a procedure to define these scratches is useful. 1.1 This test method covers the visual inspection of shallow or superficial scratches on the surface of aerospace transparent plastic materials. 1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Standard Test Method for Intensity of Scratches on Aerospace Transparent Plastics

ICS
49.045
CCS
发布
2009
实施

This SAE Aerospace Standard (AS) covers an alternate gland design for the installation of scraper/ wiper rings in the lower end of landing gear shock struts for the purpose of contaminant exclusion. The defined scraper gland covered by this document, as shown in Table 1, is a variant of SAE AS 4716, the accepted gland standard for MS28775, O-ring packing seals. Piston rod diameters, gland internal diameters, groove sidewall angles and the surface finish are all defined by SAE AS 4716, but the gland outer retaining wall diameter is changed. The traditional scraper design installed into the glands detailed in Table 1 typically utilize components made from urethane or nitrile materials. These scraper designs, while still acceptable, must be reviewed in consideration to deicing, cleaners and disinfectant fluids applied to or in contact with the landing gear, as the materials of construction for the installed scrapers may not be compatible to these fluids. Exposure of the scraper to incompatible fluids is likely to reduce the performance of the scraper. In addition, an alternative scraper gland is also covered by this document and shown in Table 2. It is also a variant of AS4716, however this gland has a reduced atmospheric gland lip and profiled lead in geometry to allow for a PTFE jacket metal spring energized scraper to be installed. The advantages of the PTFE jacket metal spring energized scraper design is that the materials of construction are chemically inert, greatly reducing the possibility of negative performance due to incompatibility with deicers, cleaners and disinfectant fluids. SAE AS 4088 is similar to the hardware design in Table 1 of this document, which was developed by SAE A-6 for flight control and general-purpose cylinders. It differs from this document primarily by the clearance between the rod (piston) and outer gland wall. This document is intended to present a groove which will accommodate an improved scraper/wiper ring assembly design and is not intended to obsolete the MS33675 gland standard.

Gland Design: Scraper, Landing Gear, Installation

ICS
49.045
CCS
V42
发布
2008-11-24
实施

Bearing, Ball, Rod End, Double Row, Precision, External Thread, Self-Aligning, Airframe, Type II, -65 to 300°F

ICS
49.045
CCS
V22
发布
2008-10-20
实施

This document recommends minimum requirements for antiskid brake control to provide total aircraft systems compatibility. Design and operational goals, general theory, and functions, which should be considered by the aircraft brake system engineer to attain the most effective skid control performance, are covered in detail. Methods of determining and evaluating antiskid system performance are discussed. While this document specifically addresses antiskid systems which are a part of a hydraulically actuated brake system, the recommended practices are equally applicable to brakes actuated by other means, such as electrically actuated brakes. To recommend minimum antiskid brake control design practices, laboratory and aircraft test requirements to provide total aircraft system compatibility.

Design and Testing of Antiskid Brake Control Systems For Total Aircraft Compatibility

ICS
49.045
CCS
V42
发布
2008-10-20
实施

The scope of the Quality Program Guidelines, in the format of a checklist, is to help ensure compliance with the current documents as listed in §2 “Applicable Documents” that meet Airline Operator’s and regulatory requirements. It is theresponsibility of all other personnel that performs the deicing/anti-icing task to adhere to these requirements.

Quality Program Guidelines for Deicing/Anti-icing of Aircraft on the Ground

ICS
49.045
CCS
V00
发布
2008-08-20
实施

1.1 Field of Application1.1.1 This document establishes the minimum requirements for ground based aircraft deicing/anti-icing Methods andprocedures to ensure the safe operation of aircraft during icing conditions. This document does not specifyrequirements for particular airplane models.NOTE: Particular airline or aircraft manufacturers’ published manuals, procedures, or methods supplement theinformation contained in this document.1.1.2 Agreements and ContractsThis information is recommended as a basis for maintenance operations and service support agreements.1.1.3 Safety - Hazardous MaterialsWhile the materials, methods, applications, and processes described or referenced in this specification may involve theuse of hazardous materials, this specification does not address the hazards which may be involved in such use. It is thesole responsibility of the user to ensure familiarity with the safe and proper use of any hazardous materials and processesand to take necessary precautionary measures to ensure the health and safety of all personnel involved.1.1.4 All guidelines referred to herein are applicable only in conjunction with the referenced SAE specifications. Specificrequirements for airplane model type are not included. Due to aerodynamic and other concerns application ofdeicing/anti-icing fluids shall be carried out in compliance with engine and aircraft manufacturers’ requirements.

Aircraft Deicing/Anti-Icing Methods

ICS
49.045
CCS
V36
发布
2008-07-17
实施

This document covers military aircraft wheel and hydraulically actuated brake equipment.1.1 PurposeThis document provides recommended practices for designing and testing wheels and hydraulically actuated brakes foruse on new designs of military aircraft. Intended users are airframe and military personnel who prepare detail design andperformance specifications. It is not intended to be a procurement document. This document provides updatedinformation to MIL-W-5013 which has been classified inactive for new design.

Wheel and Hydraulically Actuated Brake Design and Test Requirements for Military Aircraft

ICS
49.045
CCS
V42
发布
2008-06-01
实施

This SAE Aerospace Recommended Practice (ARP) provides recommended definitions for terms commonly used in aircraft inflight icing system design and analysis, research, and operations. Some general thermodynamic terms are included that are frequently used in icing analysis, but this document is not meant to be an inclusive list of such terms.

Aircraft Inflight Icing Terminology

ICS
49.045
CCS
V04
发布
2008-03-01
实施

The present document addresses gas and hydraulic fluid servicing required on commercial and military aircraft landing gears, for both single and dual chamber shock struts.

Landing Gear Servicing

ICS
49.045
CCS
V42
发布
2008-03-01
实施

(R) Water Spray and High Humidity Endurance Test Methods for SAE AMS 1424 and SAE AMS 1428 Aircraft Deicing/Anti-icing Fluids

(R) Water Spray and High Humidity Endurance Test Methods for SAE AMS 1424 and SAE AMS 1428 Aircraft Deicing/Anti-icing Fluids

ICS
49.045
CCS
发布
2008-03-01
实施

This document recommends supplementary design criteria to enhance the endurance and reliability of transport aircraft wheels and brakes.

(R) Wheels and Brakes, Supplementary Criteria for Design Endurance Civil Transport Aircraft

ICS
49.045
CCS
V42
发布
2008-02-01
实施

This SAE Aerospace Recommended Practice (ARP) provides a guide for preparation of requirements for general design, performance and testing of mechanical geared rotary actuators intended to be used for applications requiring motion control in response to manual or automatic power control system inputs. This recommended practice is to be used as a guide in preparing a detail specification for a particular mechanical geared rotary actuator application and is applicable to all military and commercial aerospace vehicles.

(R) Actuators: Mechanical, Geared Rotary, General Specification For

ICS
49.045
CCS
V37
发布
2007-11-01
实施

Aircraft-Connections for starting engines by air

ICS
49.045
CCS
发布
2007-09-28
实施

이 규격은 항공기 엔진 시동을 위한 공기원과의 접속부 치수를 규정한다. 이 치수는 커넥터

Aircraft-Connections for starting engines by air

ICS
49.045
CCS
V30
发布
2007-09-28
实施
2007-09-28

The aircraft landing gear is a complex multi-degree of freedom dynamic system, and may encounter vibration or dynamic response problems induced by braking action. The vibratory modes can be induced by brake and tire-ground frictional characteristics, antiskid operation, brake design features, landing gear design features, and tire characteristics. The impact of this vibration can range from catastrophic failure of critical system components or entire landing gears, to fatigue of small components, to passenger annoyance. It is therefore important that the vibration is assessed during the design concept phase, and verified during the development and testing phases of the system hardware. This SAE Aerospace Information Report (AIR) has been prepared by a panel of the A-5A Subcommittee to present an overview of the landing gear problems associated with aircraft braking system dynamics, and the approaches to the identification, diagnosis, and solution of these problems. All pertinent system modes of vibration are described. In addition, facilities and techniques available for test and evaluation are presented and discussed, and useful references are cited. The terminology used is intended to be consistent with SAE AIR 1489, Aerospace Landing Gear Systems Terminology, but some terminology herein is not yet included in SAE AIR 1489. The panel members include representatives from major brake, landing gear, aircraft, and brake control system manufacturers. In addition, drafts of the document were circulated for input beyond the SAE to other experts in the field.

(R) Braking System Dynamics

ICS
49.045
CCS
V35
发布
2007-09-01
实施

This International Standard defines the requirements for ISO type I fluids used in the removal and prevention of ice, snow, or frost on exterior surfaces of main line and regional civil transport airplanes on the ground. This International Standard is applicable to de-icing/anti-icing fluids for use on airplanes in general. However, the applicability may have limitations for particular airplane types. It is the airplane operator’s responsibility to consult the aircraft operations manual, the aircraft maintenance manual and the service letters of the airplane manufacturer, to determine any limitations/restrictions relating to the use of de-icing/anti-icing fluids that conform to this International Standard for the type and model of airplane to be treated. See also ISO 11076.

Aircraft - De-icing/anti-icing fluids - ISO type I

ICS
49.045
CCS
V04
发布
2007-07-31
实施
2007-07-31

This International Standard defines the requirements for non Newtonian ISO types II, III and IV fluids used in the removal and prevention of ice, snow, or frost on exterior surfaces of main line and regional civil transport airplanes on the ground. This International Standard is applicable to de-icing/anti-icing fluids for use on airplanes in general. However, the applicability may have limitations for particular airplane types. It is the airplane operator’s responsibility to consult the aircraft operations manual, the aircraft maintenance manual and the service letters of the airplane manufacturer, to determine any limitations/restrictions relating to the use of de-icing/anti-icing fluids that conform to this International Standard for the type and model of airplane to be treated. See also ISO 11076.

Aircraft - De-icing/anti-icing fluids - ISO type II, III and IV

ICS
49.045
CCS
V04
发布
2007-07-31
实施
2007-07-31

The purpose of this SAE Aerospace Recommended Practice (ARP) is to provide the sample selection and endurance time test procedures, for SAE Type II, III, and IV aircraft deicing/anti-icing fluids, required for the generation of endurance time data of acceptable quality for review by the SAE G-12 Holdover Time Subcommittee.

Endurance Time Tests for Aircraft Deicing/Anti-Icing Fluids SAE Type II, III, and IV

ICS
49.045
CCS
V04
发布
2007-07-01
实施

This SAE Aerospace Recommended Practice (ARP) establishes methods for testing airframe plain bearings. The purpose of SAE ARP 5448 and its associated slash sheets is to document test methods commonly used to evaluate airframe bearings. These test methods may be referenced in specifications, part standards, purchase orders, etc. when the test is deemed appropriate to the intended use of the bearing by the end user of the bearing. These test methods are not intended to encompass every conceivable requirement for an airframe bearing. The end user of the bearing must exercise engineering judgment to determine the most appropriate standard and/or nonstandard tests for the application.

Plain Bearing Test Methods

ICS
49.045
CCS
V22;J12
发布
2007-07-01
实施

This SAE Aerospace Information Report (AIR) provides a description of a screening method for use in the field for verifying an AMS 1428 anti-icing fluid is above its minimum low shear viscosity as published with holdover time guidelines. The test will determine if the fluid is (a) satisfactory, (b) unsatisfactory, or (c) borderline needing more advanced viscometry testing. Other field tests may be required to determine if an anti-icing fluid is useable, such as refractive index, appearance or other tests as may be recommended by the fluid manufacturer.

Field Viscosity Test for Thickened Aircraft Anti-Icing Fluids

ICS
49.045
CCS
V04
发布
2007-07-01
实施



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