【摘要】 关联维数可定量分析不同压力状况下液压管路的工作状态.详细讨论了不同压力下液压管路系统的振动信号中关联维数的计算方法,并通过实验进行了分析.实验结果表明,通过偏相关积分算法计算得到的指数维数(关联维数近似值),能表征不同压力变化下的液压管路振动信号的变化,当压力变大时维数逐渐增大.更多还原

【Abstract】 The correlation dimensions can be applied to quantitatively analyze the hydrauhc pipe vibration signal under different pressures.The correlation dimensions of the vibration signals of hydraulic pipe of different pressures,the fractal dimension changes of different frequency components of hydraulic pipe vibration signal under different pressures are discussed in detail.The correlation dimensions change with the frequency of hydraulic pipe vibration signals under different pressure is analyzed.It is showed that the correlation dimensions are an important parameter.更多还原