公开(公告)号：US09280620B2

公开(公告)日：2016-03-08

申请号：US13652671

申请日：2012-10-16

Applicant: Christian Amann ,  Phillip W. Gravett ,  Kai Kadau

Inventor： Christian Amann ,  Phillip W. Gravett ,  Kai Kadau

IPC: G01F17/00 ,  G01B5/00 ,  G06F17/50 ,  G01B5/30 ,  G01B5/04 ,  H01L21/66 ,  H01L21/67

CPC classification number: G06F17/5018 ,  G01B5/00 ,  G01B5/04 ,  G01B5/30 ,  H01L21/67 ,  H01L21/67276 ,  H01L21/67288 ,  H01L22/12

Abstract: A probabilistic estimation of fatigue crack life of a component is provided. A plurality of representations of the component is defined from material property scatter data and flaw-size scatter data, wherein each representation is defined by one possible material condition and flaw-size condition associated with the component. For each representation, a component location is selected and a determination is made whether said individual representation fails after a given number of cycles N, based on the calculation of a crack growth in the selected location. The crack growth is calculated on the basis of the material condition and the flaw-size condition in the selected location. Failure of the individual representation is determined if the crack growth is determined to be unstable. The sum total of the number of the representations that failed after N cycles is determined. A probability of failure of the component after N cycles is then determined.

Abstract translation: 提供了组件的疲劳裂纹寿命的概率估计。 组件的多个表示由材料属性散布数据和缺陷尺寸散布数据定义，其中每个表示由与该组件相关联的一个可能的材料条件和缺陷尺寸条件限定。 对于每个表示，选择分量位置，并且基于所选择的位置中的裂纹增长的计算，确定在给定数量的周期N之后所述单个表示是否失效。 基于材料条件和选定位置的缺陷尺寸条件计算裂纹扩展。 如果确定裂纹增长不稳定，则确定个体表示的失败。 确定N个周期后失败的表示数的总和。 然后确定在N个周期之后的分量的故障概率。

公开(公告)号：US20140107948A1

公开(公告)日：2014-04-17

申请号：US13652671

申请日：2012-10-16

Applicant: Christian Amann ,  Phillip W. Gravett ,  Kai Kadau

Inventor： Christian Amann ,  Phillip W. Gravett ,  Kai Kadau

IPC: G01B5/30 ,  G06F19/00

CPC classification number: G06F17/5018 ,  G01B5/00 ,  G01B5/04 ,  G01B5/30 ,  H01L21/67 ,  H01L21/67276 ,  H01L21/67288 ,  H01L22/12

Abstract: A probabilistic estimation of fatigue crack life of a component is provided. A plurality of representations of the component is defined from material property scatter data and flaw-size scatter data, wherein each representation is defined by one possible material condition and flaw-size condition associated with the component. For each representation, a component location is selected and a determination is made whether said individual representation fails after a given number of cycles N, based on the calculation of a crack growth in the selected location. The crack growth is calculated on the basis of the material condition and the flaw-size condition in the selected location. Failure of the individual representation is determined if the crack growth is determined to be unstable. The sum total of the number of the representations that failed after N cycles is determined. A probability of failure of the component after N cycles is then determined.

Abstract translation: 提供了组件的疲劳裂纹寿命的概率估计。 组件的多个表示由材料属性散布数据和缺陷尺寸散布数据定义，其中每个表示由与该组件相关联的一个可能的材料条件和缺陷尺寸条件限定。 对于每个表示，选择分量位置，并且基于所选择的位置中的裂纹增长的计算，确定在给定数量的周期N之后所述单个表示是否失效。 基于材料条件和选定位置的缺陷尺寸条件计算裂纹扩展。 如果确定裂纹增长不稳定，则确定个体表示的失败。 确定N个周期后失败的表示数的总和。 然后确定在N个周期之后的分量的故障概率。

公开(公告)号：US07207768B2

公开(公告)日：2007-04-24

申请号：US11035712

申请日：2005-01-15

Applicant: Thomas J. Gordon ,  William Ryan ,  Lawrence Lee Ross ,  Brian D. Ottinger ,  Richard D. Holm ,  Nicholas D'Amico ,  Phillip W. Gravett ,  Nancy Ulerich

Inventor： Thomas J. Gordon ,  William Ryan ,  Lawrence Lee Ross ,  Brian D. Ottinger ,  Richard D. Holm ,  Nicholas D'Amico ,  Phillip W. Gravett ,  Nancy Ulerich

IPC: F01B25/26

CPC classification number: F01D21/04 ,  F04D27/0292 ,  F05D2240/55 ,  F05D2260/80 ,  F05D2270/301 ,  F05D2270/305

Abstract: Aspects of the invention related to a system for providing advance notice of impending contact between a stationary component and a rotating component in a turbine engine. For example, the system can be used to warn of potential contact between a seal holder and a rotor disk in the compressor section of the engine. In one embodiment, a pad or other component can be provided on the stationary seal holder. If the seal holder and the rotor disk approach each other during operation, the pad can contact the rotor disk prior to actual contact between the seal holder and the rotor disk. An optical and/or an acoustic signal can be generated by such contact. The signals can be detected remotely from the point of contact by a signal detection device, thereby avoiding the need to pass wires through the compressor section.

Abstract translation: 本发明的方面涉及一种用于在涡轮发动机中提供固定部件和旋转部件之间即将接触的提前通知的系统。 例如，该系统可用于警告发动机的压缩机部分中的密封保持器和转子盘之间的潜在接触。 在一个实施例中，可以在固定密封件保持器上设置垫或其它部件。 如果密封保持器和转子盘在操作期间彼此接近，则垫可以在密封保持器和转子盘之间的实际接触之前接触转子盘。 可以通过这样的接触产生光学和/或声学信号。 可以通过信号检测装置从接触点远程检测信号，从而避免需要将电线穿过压缩机部分。