random vibration environment造句

• None but is the test spectrum abundant and controllable , it is possible to simulate the stresses environment needed for exposing weakness of the product . based on summarizing the present status of the vibration test and vibration environment simulation technology in the world , the topic of simulation of super - gaussian random vibration environment with controllable frequency spectrum and its applications in reliability enhancement testing is put forward . the main content and conclusions of the dissertation are as following : 1
  本文在综述国内外振动试验技术和振动环境模拟技术的基础上,引出“频谱可控的超高斯随机振动环境模拟技术及其在可靠性强化试验中的应用”这一主题,并紧紧围绕该主题开展了如下研究工作: 1 .全面分析了振动激励的功率谱密度量级、幅值分布、带宽以及试件结构的固有频率、阻尼比等因素对疲劳损伤累积的强化效应,提出振动强化试验激励信号应具备的重要特性:频谱可控和超高斯,确立了本文的研究主题和方向。