SAE AIR 5656-2008 统计学稳定性评估

标准号：SAE AIR 5656-2008
中文标准名称：统计学稳定性评估
英文标准名称：Statistical Stability Assessment
标准类型：V04
发布日期：2008/3/1 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：V04
国际标准分类号：49.020
引用标准：ASME 91-GT-402;ASME 97-GT-48;SAE AIR 1419-1983;SAE AIR 5866-2008;SAE ARP 210-2007;SAE ARP 1420-1978;SAE AS 681;SAE AS 681H-1999;MIL-HDBK-310;MIL-STD-210A
适用范围：This SAE Aerospace Information Report (AIR) provides a methodology for performing a statistical assessment of gasturbine- engine stability-margin usage. Consideration is given to vehicle usage, fleet size, and environment to provide insight into the probability of encountering an in-service engine stall event. Current industry practices, such as ARP1420, supplemented by AIR1419, and engine thermodynamic models, are used to determine and quantify the contribution of individual stability threats. The statistical technique adopted by the S-16 committee for performing a statistical stability assessment is the Monte Carlo method (see Applicable References 1 and 2). While other techniques may be suitable, their application is beyond the scope of this document. The intent of the document is to present a methodology and process to construct a statistical-stability-assessment model for use on a specific system and its mission or application. The purpose of the Statistical Stability Assessment (SSA) is to provide a quantitative tool for optimizing engine stability margin requirements and provide greater visibility of off-design conditions. It can be applied at the inception of a new project to perform trade studies and support risk assessments; or to a mature project to assess the impact/risk of modifications or changes in operational usage. This document provides guidelines on the procedures and data that are required to perform the statistical stability assessment. A number of illustrative examples are presented.