公开(公告)号：US20160230588A1

公开(公告)日：2016-08-11

申请号：US14619757

申请日：2015-02-11

Applicant: United Technologies Corporation

Inventor： Steven Tine ,  Richard A. Lomenzo,, JR. ,  Kevin J. Klinefelter ,  Elizabeth F. Vinson ,  Kaitlin Olsen ,  Thomas R. Davis

IPC: F01D21/00 ,  G01H9/00 ,  G01H13/00

CPC classification number: F01D21/003 ,  F05D2240/12 ,  F05D2240/30 ,  F05D2260/12 ,  G01H9/00 ,  G01H13/00

Abstract: A resonant frequency testing system for airfoils comprises a broach block, a clamp, an acoustic speaker, a laser vibrometer, and a control processor assembly. The broach block has a slot disposed to receive the airfoil in an airfoil location. The clamp has a torque-actuated shutoff, and is disposed to lock the airfoil in the broach block slot under a fixed clamping force. The acoustic sensor is disposed adjacent the airfoil location to emit sonic pulses, and the laser vibrometer is oriented towards the airfoil location to sense vibration signatures of the airfoil when excited by the sonic pulses. The control processor assembly is configured to control the acoustic speaker and laser vibrometer, to decompose the sensed vibration signatures into resonant frequencies of the airfoil, and to store the resonant frequencies in a digital storage database, correlated with a unique ID corresponding to the airfoil

Abstract translation: 用于翼型件的谐振频率测试系统包括拉锯块，夹具，声音扬声器，激光振动计和控制处理器组件。 拉刀块具有设置成在翼型位置接收翼型的槽。 夹具具有扭矩驱动关闭，并且被设置成在固定夹紧力下将翼型件锁定在拉刀块槽中。 声学传感器设置在翼型位置附近以发射声波脉冲，并且激光振动计朝向翼型位置定向以在由声波脉冲激发时感测到翼型的振动特征。 控制处理器组件被配置为控制声学扬声器和激光振动计，将感测到的振动特征分解成翼型的谐振频率，并将共振频率存储在数字存储数据库中，与对应于翼型的唯一ID相关联

公开(公告)号：US09777591B2

公开(公告)日：2017-10-03

申请号：US14619757

申请日：2015-02-11

Applicant: United Technologies Corporation

Inventor： Steven Tine ,  Richard A. Lomenzo, Jr. ,  Kevin J. Klinefelter ,  Elizabeth F. Vinson ,  Kaitlin Olsen ,  Thomas R. Davis

IPC: G01H13/00 ,  G01H9/00 ,  F01D21/00

CPC classification number: F01D21/003 ,  F05D2240/12 ,  F05D2240/30 ,  F05D2260/12 ,  G01H9/00 ,  G01H13/00

Abstract: A resonant frequency testing system for airfoils comprises a broach block, a clamp, an acoustic speaker, a laser vibrometer, and a control processor assembly. The broach block has a slot disposed to receive the airfoil in an airfoil location. The clamp has a torque-actuated shutoff, and is disposed to lock the airfoil in the broach block slot under a fixed clamping force. The acoustic sensor is disposed adjacent the airfoil location to emit sonic pulses, and the laser vibrometer is oriented towards the airfoil location to sense vibration signatures of the airfoil when excited by the sonic pulses. The control processor assembly is configured to control the acoustic speaker and laser vibrometer, to decompose the sensed vibration signatures into resonant frequencies of the airfoil, and to store the resonant frequencies in a digital storage database, correlated with a unique ID corresponding to the airfoil.