Invention Grant
- Patent Title: Non-synchronous vibrational excitation of turbine blades using a rotating excitation structure
- Patent Title (中): 使用旋转激励结构的涡轮叶片的非同步振动激励
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Application No.: US11862752Application Date: 2007-09-27
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Publication No.: US07654145B2Publication Date: 2010-02-02
- Inventor: Michael Twerdochlib
- Applicant: Michael Twerdochlib
- Applicant Address: US FL Orlando
- Assignee: Siemens Energy, Inc.
- Current Assignee: Siemens Energy, Inc.
- Current Assignee Address: US FL Orlando
- Main IPC: G01M13/00
- IPC: G01M13/00 ; G01H17/00 ; G01M19/00
Abstract:
A method of measuring vibration in a bladed rotor structure with a vibration monitor. The vibration monitor includes a sensor for sensing passage of the sensor targets on radially outer portions of the blade structure, and the sensor generates signals corresponding to target passing events. An excitation structure is provided including at least one air jet for providing an excitation force to the blade structure. The blade structure is rotated about an axis of rotation and the air jet is driven in a circular path about the axis of rotation at a different rotational speed to apply a non-synchronous excitation force to the blade structure.
Public/Granted literature
- US20090084187A1 Non-Synchronous Vibrational Excitation of Turbine Blades Using a Rotating Excitation Structure Public/Granted day:2009-04-02
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