Finite element analysis ( fea ) is used to optimise production of gear cases and other structural components , while failure mode and effect analysis ( fmea ) is carried out as part of the design review procedure ensuring a critical appraisal of key design elements and fulfilment of the operating requirements Fea (有限元分析)用來優(yōu)化變速箱及其它結(jié)構(gòu)件的生產(chǎn), fmea (故障模式與效果分析)作為設計審查程序的一部分,確保對重要設計部件進行嚴格的鑒定,以達到運作的要求。