噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2014年
5期
156-160
,共5页
振动与波%键合图%组合转子%横向裂纹%退化%敏感性
振動與波%鍵閤圖%組閤轉子%橫嚮裂紋%退化%敏感性
진동여파%건합도%조합전자%횡향렬문%퇴화%민감성
vibration and wave%bond graph%combined rotor%horizontal crack%degradation%sensitivity
裂纹对组合转子性能退化具有重要影响。为此，基于键合图法建立通用组合转子扭转振动力学模型，研究拉杆裂纹导致组合转子性能退化的位置敏感性。研究表明：裂纹位置从拉杆两端到中部，组合转子性能退化对裂纹的敏感性逐渐降低；但当拉杆裂纹深度小到一定程度后，组合转子性能退化对裂纹位置不敏感；轮盘数、拉杆数越少，组合转子性能退化对裂纹的敏感性越高。
裂紋對組閤轉子性能退化具有重要影響。為此，基于鍵閤圖法建立通用組閤轉子扭轉振動力學模型，研究拉桿裂紋導緻組閤轉子性能退化的位置敏感性。研究錶明：裂紋位置從拉桿兩耑到中部，組閤轉子性能退化對裂紋的敏感性逐漸降低；但噹拉桿裂紋深度小到一定程度後，組閤轉子性能退化對裂紋位置不敏感；輪盤數、拉桿數越少，組閤轉子性能退化對裂紋的敏感性越高。
렬문대조합전자성능퇴화구유중요영향。위차，기우건합도법건립통용조합전자뉴전진동역학모형，연구랍간렬문도치조합전자성능퇴화적위치민감성。연구표명：렬문위치종랍간량단도중부，조합전자성능퇴화대렬문적민감성축점강저；단당랍간렬문심도소도일정정도후，조합전자성능퇴화대렬문위치불민감；륜반수、랍간수월소，조합전자성능퇴화대렬문적민감성월고。
Cracks have important effects on combined rotor’s degradation. Based on the bond graph method, a general dynamic model for torsional vibration of the combined rotor is established. Then, the sensitivity of the combined rotor’s degradation to the crack position in a tensile rod is studied. The results show that the sensitivity of the combined rotor’s degradation decreases gradually when the crack locates from the end to the centre of the rod. However, when the crack depth is small, the combined rotor’s degradation is not sensitive to the crack position. Furthermore, the less the number of the rods and the disks is, the higher the sensitivity of the combined rotor degradation to the crack is.
