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1. 发明授权

US07204152B2 Apparatus and method for fatigue testing 有权
标题翻译：疲劳试验装置及方法
公开(公告)号：US07204152B2
公开(公告)日：2007-04-17
申请号：US11104486
申请日：2005-04-13
申请人： Colin J Woodward , Martin McElhone , James S Crabtree , Paul A Greenacre
发明人： Colin J Woodward , Martin McElhone , James S Crabtree , Paul A Greenacre
IPC分类号： G01N3/00
CPC分类号： G01N3/32 , G01N2203/0073 , G01N2203/027 , G01N2203/0464
摘要： A method of simulating life of a rotor blade mounting feature mounted in a complementary rotor disc mounting feature comprises the steps of providing two specimen mounting features (37) each having portions defining pressure faces matching in profile respective faces of the rotor blade mounting feature; providing a fixture (38) having two opposed mounting features (39) each having portions defining pressure faces (78) matching in profile respective faces of the rotor disc mounting feature; mounting the specimen mounting features (37) in the fixture mounting features (39); applying a first load to the specimen mounting features (37); measuring a strain in a region (86) of the fixture (38) between the fixture mounting features (39); applying a second load to the fixture (38), the second load being substantially perpendicular to the first load; and controlling the second load in response to the measured strain. A high cycle load may simultaneously be applied to the specimen mounting features (37). Claims are also included for an apparatus (10) for carrying out the method.
摘要翻译：一种模拟安装在互补转子盘安装特征中的转子叶片安装特征的寿命的方法包括以下步骤：提供两个样本安装特征（37），每个具有限定在所述转子叶片安装特征的轮廓相应面中匹配的压力面的部分; 提供具有两个相对的安装特征（39）的固定装置（38），每个具有限定在转子盘安装特征的轮廓相应表面上匹配的压力面（78）的部分; 将样品安装特征（37）安装在固定装置安装特征（39）中; 对样品安装特征（37）施加第一负载; 测量所述夹具安装特征（39）之间的固定装置（38）的区域（86）中的应变; 将第二负载施加到所述固定装置（38），所述第二负载基本上垂直于所述第一负载; 以及响应于测量的应变来控制第二负载。同时可以对样本安装特征（37）应用高循环负载。还包括用于执行该方法的装置（10）的权利要求。

2. 发明申请

US20050252304A1 Apparatus and method for fatigue testing 有权
标题翻译：疲劳试验装置及方法
公开(公告)号：US20050252304A1
公开(公告)日：2005-11-17
申请号：US11104486
申请日：2005-04-13
申请人： Colin Woodward , Martin McElhone , James Crabtree , Paul Greenacre
发明人： Colin Woodward , Martin McElhone , James Crabtree , Paul Greenacre
IPC分类号： G01N3/00 , G01N3/04 , G01N3/32
CPC分类号： G01N3/32 , G01N2203/0073 , G01N2203/027 , G01N2203/0464
摘要： A method of simulating life of a rotor blade mounting feature mounted in a complementary rotor disc mounting feature comprises the steps of providing two specimen mounting features (37) each having portions defining pressure faces matching in profile respective faces of the rotor blade mounting feature; providing a fixture (38) having two opposed mounting features (39) each having portions defining pressure faces (78) matching in profile respective faces of the rotor disc mounting feature; mounting the specimen mounting features (37) in the fixture mounting features (39); applying a first load to the specimen mounting features (37); measuring a strain in a region (86) of the fixture (38) between the fixture mounting features (39); applying a second load to the fixture (38), the second load being substantially perpendicular to the first load; and controlling the second load in response to the measured strain. A high cycle load may simultaneously be applied to the specimen mounting features (37). Claims are also included for an apparatus (10) for carrying out the method.
摘要翻译：一种模拟安装在互补转子盘安装特征中的转子叶片安装特征的寿命的方法包括以下步骤：提供两个样本安装特征（37），每个具有限定在所述转子叶片安装特征的轮廓相应面中匹配的压力面的部分; 提供具有两个相对的安装特征（39）的固定装置（38），每个具有限定在转子盘安装特征的轮廓相应表面上匹配的压力面（78）的部分; 将样品安装特征（37）安装在固定装置安装特征（39）中; 对样品安装特征（37）施加第一负载; 测量所述夹具安装特征（39）之间的固定装置（38）的区域（86）中的应变; 将第二负载施加到所述固定装置（38），所述第二负载基本上垂直于所述第一负载; 以及响应于测量的应变来控制第二负载。同时可以对样本安装特征（37）应用高循环负载。还包括用于执行该方法的装置（10）的权利要求。

3. 发明授权

US06732591B2 Device and method for fatigue testing of materials 失效
标题翻译：材料疲劳试验装置及方法
公开(公告)号：US06732591B2
公开(公告)日：2004-05-11
申请号：US09922087
申请日：2001-08-06
申请人： Toby J Miles , Gerald Deshais , Robin J Williams , Martin McElhone
发明人： Toby J Miles , Gerald Deshais , Robin J Williams , Martin McElhone
IPC分类号： G01N332
CPC分类号： G01N3/32 , G01N2203/0008 , G01N2203/0023 , G01N2203/0035 , G01N2203/0064 , G01N2203/0066 , G01N2203/0073 , G01N2203/0226 , G01N2203/0441 , G01N2203/0623
摘要： A device (10) for fatigue testing of materials comprises a frame (14), first and second clamping means (16,18) for holding a specimen (12) to be tested. First and second mounting means (20,22) mount the clamping means (16,18) on the frame (14). The mounting means (20,22) vibrationally isolate the clamping means (16,18) from the frame (14). Actuator means (24) moves the first clamping means (16) relative to the second clamping means (18) to apply a low cycle load on the specimen (12). Electrical insulating means (30) electrically insulate the frame (14) from the specimen (12). A shaker (26) is coupled to the second clamping means (18) to apply a high cycle load on the specimen (12). A detector (32) detects the vibration of the specimen (12) and sends an electrical signal to a control unit (42) which determines the resonant frequency of the specimen (12). The control unit (42) sends a signal to the shaker (26) to maintain the high cycle load at the resonant frequency of the specimen (12). Electrical potential drop probes (38) are provided on the specimen (12) to send a second electrical signal to the control unit (42) which is arranged to determine the rate of crack growth, the fatigue life to crack initiation and fatigue life to failure of the specimen (12).
摘要翻译：用于材料的疲劳试验的装置（10）包括框架（14），用于保持待测样品（12）的第一和第二夹紧装置（16,18）。第一和第二安装装置（20,22）将夹紧装置（16,18）安装在框架（14）上。安装装置（20,22）将夹紧装置（16,18）与框架（14）振动隔离。致动器装置（24）相对于第二夹紧装置（18）移动第一夹紧装置（16），以在试样（12）上施加低的循环负荷。电绝缘装置（30）使框架（14）与试样（12）电绝缘。振动器（26）联接到第二夹紧装置（18），以对试样（12）施加高的循环负荷。检测器（32）检测样本（12）的振动，并将电信号发送到确定样本（12）的共振频率的控制单元（42）。控制单元（42）向振动器（26）发送信号，以将高周期负荷维持在样本（12）的共振频率。在试样（12）上设有电位降探测器（38），以向控制单元（42）发送第二电信号，控制单元（42）用于确定裂纹扩展速率，裂纹开始的疲劳寿命和疲劳寿命的样品（12）。

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