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公开(公告)号:US20070031246A1
公开(公告)日:2007-02-08
申请号:US11416172
申请日:2006-05-03
申请人: Caetano Peng
发明人: Caetano Peng
IPC分类号: F01D11/08
CPC分类号: F01D21/045 , F05D2240/14 , F05D2250/231 , F05D2250/313 , F05D2300/603 , F05D2300/702 , Y02T50/672
摘要: A containment casing 1 is provided in which tubular composite layers 2, 3 are arranged in an angular staggered relationship to minimise overlap between the interstitial spacing between tubes in each respective layer 2, 3. In such circumstances, with a continuous planar layer 4, 5 on one or both sides, operational integrity is maintained with a lightweight containment casing 1 in comparison with prior arrangements but retaining resistance to fragment penetration.
摘要翻译: 提供了一种安全壳体1,其中管状复合层2,3以角度交错关系布置,以最小化每个相应层2,3中管间间隙的重叠。 在这种情况下,在一侧或两侧具有连续的平面层4,5,与先前的布置相比,保持与轻量化的容纳壳体1的操作完整性,但保持对片段穿透的抵抗力。
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公开(公告)号:US08479586B2
公开(公告)日:2013-07-09
申请号:US13399272
申请日:2012-02-17
CPC分类号: G01N3/32 , G01M5/0016 , G01M5/0075 , G01N3/04 , G01N2203/0008
摘要: Apparatus for fatigue or mechanical friction damping measurement testing a specimen the apparatus including a body having opposing arms defining between them a space for receiving the specimen, one of the opposing arms having a fixture for securing the specimen, another of the opposing arms having a further fixture for securing the specimen, the fixture and the further fixture being adjustable to increase or decrease the relative distance therebetween, wherein the body includes an assigned vibration location to which excitation signals are applied during testing.
摘要翻译: 用于疲劳或机械摩擦阻尼测量的装置测试试样,该装置包括具有相对的臂的主体,在其间限定用于接收试样的空间,相对的臂中的一个具有用于固定试样的固定装置,另一个相对的臂具有另一个 用于固定样本的固定装置,所述固定装置和所述另外的夹具可调节以增加或减小其间的相对距离,其中所述主体包括在测试期间施加激励信号的分配的振动位置。
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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
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。
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公开(公告)号:US20060018761A1
公开(公告)日:2006-01-26
申请号:US11146187
申请日:2005-06-07
申请人: John Webster , Caetano Peng
发明人: John Webster , Caetano Peng
IPC分类号: B64C11/24
CPC分类号: F01D5/148 , F01D7/00 , F01D17/16 , F05D2300/505 , Y02T50/673
摘要: An adaptable fluid-foil comprising at least two panels, the panels are joined at opposing edges, in use, a fluid passes over at least part of one of the panels characterized in that a panel comprises a shape memory element, the shape memory element is arranged to change the shape of the fluid-foil between a first shape and a second shape, so that in use, the first shape is optimal for a first fluid flow condition and the second shape is optimal for a second fluid flow condition.
摘要翻译: 包括至少两个面板的适应性流体薄片,所述面板在使用中在相对边缘处连接,流体通过其中一个面板的至少一部分,其特征在于,面板包括形状记忆元件,所述形状记忆元件是 被布置成在第一形状和第二形状之间改变流体箔的形状,使得在使用中,第一形状对于第一流体流动状态是最佳的,并且第二形状对于第二流体流动状态是最佳的。
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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。
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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
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。
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公开(公告)号:US20120240687A1
公开(公告)日:2012-09-27
申请号:US13399272
申请日:2012-02-17
IPC分类号: G01N3/32
CPC分类号: G01N3/32 , G01M5/0016 , G01M5/0075 , G01N3/04 , G01N2203/0008
摘要: Apparatus for fatigue or mechanical friction damping measurement testing a specimen the apparatus including a body having opposing arms defining between them a space for receiving the specimen, one of the opposing arms having a fixture for securing the specimen, another of the opposing arms having a further fixture for securing the specimen, the fixture and the further fixture being adjustable to increase or decrease the relative distance therebetween, wherein the body includes an assigned vibration location to which excitation signals are applied during testing.
摘要翻译: 用于疲劳或机械摩擦阻尼测量的装置测试试样,该装置包括具有相对的臂的主体,在其间限定用于接收试样的空间,相对的臂中的一个具有用于固定试样的固定装置,另一个相对的臂具有另一个 用于固定样本的固定装置,所述固定装置和所述另外的夹具可调节以增加或减小其间的相对距离,其中所述主体包括在测试期间施加激励信号的分配的振动位置。
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