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Product Code:SAE AIR5020
Title:Time-Dependent In-Flight Thrust Determination
Issuing Committee:E-33 In Flight Propulsion Measurement Committee
Scope: The purpose and intent of Subcommittee E-33E's effort, the reporting objectives, and the limitations inherent in the reported findings and recommendations are reviewed since these factors are the basis of the information contained in this document. SAE E-33E Subcommittee was formed to assess the level of industry experience that exists in the area of thrust determination during aircraft time-variant operating conditions. A prime objective was to provide a center for gathering expertise and to be a forum for the exchange of ideas and viewpoints. The committee recognized that a practice for the rigorous treatment of time-dependent thrust did not exist and that several critical aspects of its accounting would need to be investigated. The specific objectives of this document are: a. to examine aircraft and engine operating conditions under which the quasi-steady thrust assumption is valid; b. to determine the extent to which time-dependent (nonstationary) force accounting for engine net thrust and propulsion system throttle-dependent terms is required, consistent with existing and developing thrust-minus-drag techniques; c. to report time-dependent thrust methodologies and measurement techniques used for flight and ground testing; d. to present the results of a data review of state-of-the-art methodology appropriate to the determination of aircraft-installed thrust during quasi-steady and dynamic maneuvers; and e. to provide guidelines for validating and improving time-depend thrust and propulsion system throttle-dependent terms is required, consistent with existing and developing thrust-minus-drag techniques; c. to report time-dependent thrust methodologies and measurement techniques used for flight and ground testing; d. to present the results of a data review of state-of-the-art methodology appropriate to the determination of aircraft-installed thrust during quasi-steady and dynamic maneuvers; and e. to provide guidelines for validating and improving time-depend thrust and propulsion system throttle-dependent terms is required, consistent with existing and developing thrust-minus-drag techniques; c. to report time-dependent thrust methodologies and measurement techniques used for flight and ground testing; d. to present the results of a data review of state-of-the-art methodology appropriate to the determination of aircraft-installed thrust during quasi-steady and dynamic maneuvers; and e. to provide guidelines for validating and improving thrust and propulsion system throttle-dependent terms is required, consistent with existing and developing thrust-minus-drag techniques; c. to report time-dependent thrust methodologies and measurement techniques used for flight and ground testing; d. to present the results of a data review of state-of-the-art methodology appropriate to the determination of aircraft-installed thrust during quasi-steady and dynamic maneuvers; and e. to provide guidelines for validating and improving time-dependent thrust determination as appropriate to a specific program.

标准名称：	铸造轴承合金锭
英文名称：	Casting bearing alloy ingots
中标分类：	冶金 >> 有色金属及其合金产品 >> 重金属及其合金
ICS分类：	冶金 >> 有色金属产品 >> 铅、锌和锡产品
替代情况：	GB/T 8740-1988
发布部门：	中华人民共和国国家质量监督检验检验总局 中国国家标准化管理委员会
发布日期：	2005-07-04
实施日期：	2005-12-01
首发日期：	1988-02-25
作废日期：	1900-01-01
主管部门：	中国有色金属工业协会
提出单位：	中国有色金属工业协会
归口单位：	全国有色金属标准化技术委员会
起草单位：	云南锡业集团有限责任公司
起草人：	白健、郭万里、陈旭峰、谭勇、冯云剑、李天敏、栩建成、赵永善
出版社：	中国标准出版社
出版日期：	2005-12-01
页数：	16开， 页数：8， 字数：11千字
计划单号：	20021916-T-610

本标准规定了铸造轴承合金锭的要求、试验方法、检验规则及标志、包装、运输、贮存。本标准适用于锡、铅、锑、铜等金属作主原料，火法精炼生产的铸造锡基、铅基轴承合金锭。

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