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NF C96-013-6-13-2008 半导体装置的机械标准化.第6-13部分:小间距球栅阵列和小间距盘栅阵列(FBGA/FLGA)用顶部开口型插座的设计指南

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Product Code:SAE AIR1678
Title:Uncertainty of In-Flight Thrust Determination
Issuing Committee:E-33 In Flight Propulsion Measurement Committee
Scope:This document defines and illustrates the process for determination of uncertainty of turbofan and turbojet engine in-flight thrust and other measured in-flight performance parameters. The reasons for requiring this information, as specified in the E-33 Charter, are:鈥etermination of high confidence aircraft drag;鈥roblem rectification if performance is low; 鈥nterpolation of measured thrust and aircraft drag over a range of flight conditions by validation and development of high confidence analytical methods;鈥stablishment of a baseline for future engine modifications.This document describes systematic and random measurement uncertainties and methods for propagating the uncertainties to the more complicated parameter, in-flight thrust. Methods for combining the uncertainties to obtain given confidence levels are also addressed. Although the primary focus of the document is in-flight thrust, the statistical methods described are applicable to any measurement process.The E-33 Committee has endeavoured to gather industry-wide expertise in in-flight measurement and uncertainty analysis to collect and promulgate recommended practices in the subject disciplines. The Committee is organized into subcommittees to address both the analytical and test methodology for determination of in-flight thrust and also the uncertainty of the determination. This document; Uncertainty of In-flight Thrust Determination, AIR1678, addresses the process for determining the uncertainty of in-flight thrust. A companion document, In-Flight Thrust Determination, AIR1703, addresses the basic methodology for determining in-flight thrust.The Committee, after reviewing recommended changes and clarification in definitions and application of statistical uncertainty items, made small revisions to the original document published in 1985. These changes were incorporated into AIR1678 Rev A.This Revision B has the same Scope as preceding versions. The nomenclature and methodology used herein are now consistent with evolving world and national standards promulgated primarily by ISO and ASME.

标准名称：	冲模导向装置 A型导套
中标分类：	机械 >> 工艺装备 >> 模具
替代情况：	可参见GB/T 2861.6-1990
发布部门：	中华人民共和国机械工业部
发布日期：	1995-03-27
实施日期：	1995-07-01
首发日期：	1900-01-01
作废日期：	2008-01-23
归口单位：	桂林电器所
出版社：	机械工业出版社
出版日期：	1995-06-01
页数：	2页

本标准规定了冲模导向装置A型导套的技术条件、结构形式、尺寸规格、材料、热处理要求及标记。
本标准适用于冲模滑动导向钢板模架。

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