G833.42男子技巧"双重倒立坠落成颈上倒立"高难创新动作的可行性分析=Feasibility analysis of the skillof double-hand handstand to handstand on theneck in men acrobatics[刊,中,A]/赵秋爽(厦门大学)//天津体育学院...G833.42男子技巧"双重倒立坠落成颈上倒立"高难创新动作的可行性分析=Feasibility analysis of the skillof double-hand handstand to handstand on theneck in men acrobatics[刊,中,A]/赵秋爽(厦门大学)//天津体育学院学报.-2003.18(3).-83-85参7(SJ)展开更多
Based on experiment modal analysis(EMA) and operation modal analysis(OMA), the dynamic characteristics of cylindrical grinding machine were measured and provided a basis for further failure analysis.The influences of ...Based on experiment modal analysis(EMA) and operation modal analysis(OMA), the dynamic characteristics of cylindrical grinding machine were measured and provided a basis for further failure analysis.The influences of grinding parameters on dynamic characteristics were studied by analyzing the diagnostic signals extracted from racing and grinding experiments.The significant frequency of 38 Hz related to grinding wheel spindle speed of 2 307 r/min showed that the wheel spindle system was in a state of imbalan...展开更多
文摘G833.42男子技巧"双重倒立坠落成颈上倒立"高难创新动作的可行性分析=Feasibility analysis of the skillof double-hand handstand to handstand on theneck in men acrobatics[刊,中,A]/赵秋爽(厦门大学)//天津体育学院学报.-2003.18(3).-83-85参7(SJ)
文摘Based on experiment modal analysis(EMA) and operation modal analysis(OMA), the dynamic characteristics of cylindrical grinding machine were measured and provided a basis for further failure analysis.The influences of grinding parameters on dynamic characteristics were studied by analyzing the diagnostic signals extracted from racing and grinding experiments.The significant frequency of 38 Hz related to grinding wheel spindle speed of 2 307 r/min showed that the wheel spindle system was in a state of imbalan...