標準號：SAE AIR 5656-2008
中文標準名稱：統計學穩定性評估
英文標準名稱：Statistical Stability Assessment
標準類型：V04
發布日期：2008/3/1 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：V04
國際標準分類號：49.020
引用標準：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
適用范圍：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.