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Equipment K-201A
FM fm_2
ISO 14224 mode STD Structural deficiency
Source OPC Ontology KB
Impeller Fatigue Crack
K-201A · Centrifugal compressor
Related equipment → K-201A
0.82Source conf.
0.80Evidence conf.
STDISO 14224 mode
1Failure Mechanism
Function:旋转加速气体，提供离心力提升压力
Failure cause:交变应力（如喘振）；材料缺陷；共振
2Source Basis (where this FM comes from)
OPC Ontology KBQuant benchmarkCSB Accident DB
Source confidence 0.82: this FM is derived from the ontology KB and cross-validated by OPC Ontology KB·Quant benchmark·CSB Accident DB.
3Evidence Chain (supporting basis)
Evidence text：None
Evidence conf.：0.8 · Evidence source：Industry consensus
Governing standards (evidence)：ima://7479345845137275/wechatarticle_11035ae55c1b08ddb9e6d8bfbece61fe_4baf3822af099542c2a396ec6e994d6b7479345845137275 — 压缩机防喘振系统完整技术方案ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_09ac5889eb7d93d00ced858558ecc00c7479345845137275 — 空气压缩机RCM维护方案ima://7479345845137275/pdf_11035ae55c1b08ddb9e6d8bfbece61fe_cb149c9742b85d0a68be7323645916837479345845137275 — 空气压缩机FMEA分析报告
4Related Real Accidents (traceable to accident cards)
This FM is recorded in 1 real accident investigation(s); tap the report no. to open the corresponding accident lesson card.
5Applicable Standards & Clauses
API 580GB/T 7826-2012ISO 14224:2016SAE JA1011_202411
Standard clause references (16):
GB/T 7826-2012GB/T 27921-2011GB/T 44958-2024GB/T 4888-2008GB/T 29639-2020AQ/T 3034-2022API 581API 580API 571API 754API 689API 755ISO 14224:2016ISO 20815:2018IEC 61511:2016ISO 31000:2018
6Derived Analysis (seeded from this FM)
9/5/3FMEA Sev/Occ/Det
0.4RBI λ
0.8Monitor pdet
4 月Insp. int.
Current tasks:连续振动监测，设置报警阈值 | 每6个月进行磁粉探伤 | 安装防喘振控制系统
RCFA incident:K-201A 发生叶轮疲劳裂纹，严重程度 9，后果类型 Safety/Environmental
7RCM Maintenance Decision (strategy landing)
CBMOn-Condition Maintenance
Recommended task无损检测(UT/MT/PT) 监测裂纹萌生, 关键转动件定时拆检; 振动频谱分析 + 动平衡 + 激光对中, 状态监测趋势管理
Suggested intervalHigh risk 1-3 mo / Medium 6-12 mo / Low risk at turnaround (by API 581 RBI risk ranking)
Decision basis机理类别=fatigue; vibration
Governing standardsAPI 579API 612API 670API 684ASME VIIIISO 10816
⚠ This decision is engineering-inferred by RCM logic from the damage mechanism / root cause / failure cause — it is not derived from measured site history. Confirm with the equipment owner and process before execution.
⚠ 本卡技术正文（功能 / 致因 / 损伤机理 / RCFA 叙事）保留中文原文——依可信 AI 红线，自由技术文本不自动机翻、不编造英文译文。UI、设备类型、FM 名、ISO 码、标准号均为英文。