公开(公告)号：US20050096891A1

公开(公告)日：2005-05-05

申请号：US10962470

申请日：2004-10-13

申请人： George Simpson ,  Caetano Peng ,  Gordon May ,  Mehdi Vahdati ,  Abdulnaser Sayma ,  Mehmet Imregun

发明人： George Simpson ,  Caetano Peng ,  Gordon May ,  Mehdi Vahdati ,  Abdulnaser Sayma ,  Mehmet Imregun

IPC分类号： F01D5/16 ,  G06G7/48

CPC分类号： F01D5/141 ,  F01D5/16 ,  F04D27/001 ,  F04D29/324 ,  F05D2250/31 ,  G06F17/5009 ,  G06F2217/16 ,  Y10S416/02

摘要： Disclosed are methods for designing vanes that, in use, are expected to be exposed to vibratory loading, in particular rotor or stator vanes for aero engines or turbomachinery. A quantitative characteristic (modeshape) is used which is a measure of correlation between the excitation force to which the vane is to be subjected in use and a vibrational mode of the vane, corresponding to a characteristic frequency of the excitation. The modeshape of the first design is determined. Then the first design is modified to give a second design, by one or more of leaning, sweeping or twisting the blade design, or by altering the local shape of the design, or by altering the material of the design. Then the modeshape of the second design is determined. The design modification gives rise to a reduction in the forced response levels.

摘要翻译： 公开了设计叶片的方法，该叶片在使用中预期暴露于振动载荷，特别是用于航空发动机或涡轮机械的转子或定子叶片。 使用定量特征（模式形状），其是对应于激发特征频率的叶片在使用中的激励力与叶片的振动模式之间的相关性的量度。 确定第一设计的模式。 然后，通过一个或多个倾斜，扫掠或扭曲刀片设计，或通过改变设计的局部形状，或通过改变设计的材料来修改第一设计以给出第二设计。 然后确定第二个设计的模式。 设计修改导致强制响应水平的降低。

公开(公告)号：US07909580B2

公开(公告)日：2011-03-22

申请号：US12081381

申请日：2008-04-15

申请人： George Simpson ,  Caetano Peng ,  Gordon May ,  Mehdi Vahdati ,  Abdulnaser Sayma ,  Mehmet Imregun

发明人： George Simpson ,  Caetano Peng ,  Gordon May ,  Mehdi Vahdati ,  Abdulnaser Sayma ,  Mehmet Imregun

IPC分类号： F03B3/12

CPC分类号： F01D5/141 ,  F01D5/16 ,  F04D27/001 ,  F04D29/324 ,  F05D2250/31 ,  G06F17/5009 ,  G06F2217/16 ,  Y10S416/02

摘要： Disclosed are methods for designing vanes that, in use, are expected to be exposed to vibratory loading, in particular rotor or stator vanes for aero engines or turbomachinery. A quantitative characteristic (modeshape) is used which is a measure of correlation between the excitation force to which the vane is to be subjected in use and a vibrational mode of the vane, corresponding to a characteristic frequency of the excitation. The modeshape of the first design is determined. Then the first design is modified to give a second design, by one or more of leaning, sweeping or twisting the blade design, or by altering the local shape of the design, or by altering the material of the design. Then the modeshape of the second design is determined. The design modification gives rise to a reduction in the forced response levels.

摘要翻译： 公开了设计叶片的方法，该叶片在使用中预期暴露于振动载荷，特别是用于航空发动机或涡轮机械的转子或定子叶片。 使用定量特征（模式形状），其是对应于激发特征频率的叶片在使用中的激励力与叶片的振动模式之间的相关性的量度。 确定第一设计的模式。 然后，通过一个或多个倾斜，扫掠或扭曲刀片设计，或通过改变设计的局部形状，或通过改变设计的材料来修改第一种设计以给出第二种设计。 然后确定第二个设计的模式。 设计修改导致强制响应水平的降低。

公开(公告)号：US20090055146A1

公开(公告)日：2009-02-26

申请号：US12081381

申请日：2008-04-15

申请人： George Simpson ,  Caetano Peng ,  Gordon May ,  Mehdi Vahdati ,  Abdulnaser Sayma ,  Mehmet Imregun

发明人： George Simpson ,  Caetano Peng ,  Gordon May ,  Mehdi Vahdati ,  Abdulnaser Sayma ,  Mehmet Imregun

IPC分类号： G06G7/50 ,  G06F17/10

CPC分类号： F01D5/141 ,  F01D5/16 ,  F04D27/001 ,  F04D29/324 ,  F05D2250/31 ,  G06F17/5009 ,  G06F2217/16 ,  Y10S416/02

摘要： Disclosed are methods for designing vanes that, in use, are expected to be exposed to vibratory loading, in particular rotor or stator vanes for aero engines or turbomachinery. A quantitative characteristic (modeshape) is used which is a measure of correlation between the excitation force to which the vane is to be subjected in use and a vibrational mode of the vane, corresponding to a characteristic frequency of the excitation. The modeshape of the first design is determined. Then the first design is modified to give a second design, by one or more of leaning, sweeping or twisting the blade design, or by altering the local shape of the design, or by altering the material of the design. Then the modeshape of the second design is determined. The design modification gives rise to a reduction in the forced response levels.

摘要翻译： 公开了设计叶片的方法，该叶片在使用中预期暴露于振动载荷，特别是用于航空发动机或涡轮机械的转子或定子叶片。 使用定量特征（模式形状），其是对应于激发特征频率的叶片在使用中的激励力与叶片的振动模式之间的相关性的量度。 确定第一设计的模式。 然后，通过一个或多个倾斜，扫掠或扭曲刀片设计，或通过改变设计的局部形状，或通过改变设计的材料来修改第一设计以给出第二设计。 然后确定第二个设计的模式。 设计修改导致强制响应水平的降低。