Hilbert-Huang变换分析仪及其在机械故障特征提取中的应用
- 文件大小:432.65KB
- 浏览次数:
- 发布时间:2014-03-12
本资料包含pdf文件1个,下载需要1积分
In order to improve the portability and efficiency of feature extraction for mechanical faults based on HHT, a HHT analyzer was developed on the Visual C++6.0 platform. And, the effi- ciency and precision of the different interpolation methods, end extending methods and stopping crite- rion were compared, and merits and faults of the algorithms in HHT were obtained. Then, the strat- egy of choosing different HHT algorithms was proposed. A comparison was made between this analy- zer and the HHT algorithm of DataDemon from DynaDx Corporation, and the correctness of the algo- rithm was verified for the analyzer. At last, the signals of outside circle fault for rolling bearing and rotor running across were analyzed by the analyzer, and the fault characteristics are extracted effec- tively.为了提高应用希尔伯特-黄变换(Hilbert-Huangtransform,HHT)进行机械故障特征提取的便携性和效率,在VisualC++6?0平台上开发了HHT分析仪。比较了HHT中不同插值方法、端点延拓方法及停止准则的效率和精度,得出了不同算法的优缺点和适用场合,提出了不同算法的选用策略。将开发的分析仪与美国DynaDx公司的DataDemon中的HHT算法结果进行比较,验证了分析仪算法的正确性。最后,将分析仪应用在滚动轴承外圈故障和转子横向裂纹的分析中,准确提取了故障特征。
- 1cad图例秘笈(制图必备)
- 2绘图工具合集SolidWorks设计
- 3GB/T 20491-2006 用于水泥和混凝土中的钢渣粉
- 4主动螺旋锥齿轮cad图纸
- 5混凝土的自缩及其控制措施
- 6GB/T 22665.1-2008 手持式电动工具手柄的振动测量方法 第1部分:电钻和冲击钻
- 7总图图例及道路图例
- 8GB/T 25810-2010 染料 产品标志、标签、包装、运输和贮存的基本规定
- 9GB/T 19068.2-2017 小型风力发电机组 第2部分:试验方法
- 10SN/T 4022-2014 进出口纺织品 可萃取痕量铅的测定 纳米二氧化钛富集-电感耦合等离子体发射光谱法
- 11一种多功能高餐椅
- 12IPA清洗机3D模型三维全套图纸
- 13重庆市某职业学校宿舍楼六层砖混结构房屋施工组织设计
- 142.4-23 T梁架设示意图
- 15DL/T 1138-2009 火力发电厂水处理用粉末离子交换树脂