噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2013年
1期
136-139
,共4页
振动与波%减振降噪%阻尼钢弹簧浮置板%谐响应分析%隔振性能
振動與波%減振降譟%阻尼鋼彈簧浮置闆%諧響應分析%隔振性能
진동여파%감진강조%조니강탄황부치판%해향응분석%격진성능
vibration and wave%noise and vibration reduction%damping steel spring floating slab%harmonic response analysis%vibration isolation performance
阻尼钢弹簧浮置板轨道结构已证实是一种有效的减振降噪轨道结构.为分析其隔振性能,通过建立阻尼钢弹簧浮置板轨道结构动力分析模型,对其进行谐响应分析,模拟列车运行时轮轨间实际冲击,研究其在简谐激励下的动力传递特性,并分别考虑浮置板长度、隔振器刚度和阻尼,以及不同载荷作用位置对浮置板隔振性能的影响.计算和分析对于今后轨道结构的进一步改善具有参考的价值.
阻尼鋼彈簧浮置闆軌道結構已證實是一種有效的減振降譟軌道結構.為分析其隔振性能,通過建立阻尼鋼彈簧浮置闆軌道結構動力分析模型,對其進行諧響應分析,模擬列車運行時輪軌間實際遲擊,研究其在簡諧激勵下的動力傳遞特性,併分彆攷慮浮置闆長度、隔振器剛度和阻尼,以及不同載荷作用位置對浮置闆隔振性能的影響.計算和分析對于今後軌道結構的進一步改善具有參攷的價值.
조니강탄황부치판궤도결구이증실시일충유효적감진강조궤도결구.위분석기격진성능,통과건립조니강탄황부치판궤도결구동력분석모형,대기진행해향응분석,모의열차운행시륜궤간실제충격,연구기재간해격려하적동력전체특성,병분별고필부치판장도、격진기강도화조니,이급불동재하작용위치대부치판격진성능적영향.계산화분석대우금후궤도결구적진일보개선구유삼고적개치.
Floating slab track structure with damping steel springs is an effective track structure for vibration reduction. In order to analyze its vibration isolation performance, a dynamic analysis model of this structure was set up. Its harmonic response was analyzed, and its dynamic transfer characteristics under harmonic excitation were analyzed. The actual impact between wheel and rail was simulated. Influence of different length of the floating slab, stiffness and damping of vibration isolators, and different load positions on the vibration isolation performance of the structure was studied. This work provides a reference for further improvement of railroad structures.
