A method of fatigue testing a component
    1.
    发明公开
    A method of fatigue testing a component 审中-公开
    疲劳测试组件的方法

    公开(公告)号:EP2662682A3

    公开(公告)日:2018-01-10

    申请号:EP13162440.5

    申请日:2013-04-05

    申请人: Rolls-Royce plc

    IPC分类号: G01N3/34 G01N17/00

    摘要: A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots.

    摘要翻译: 一种疲劳测试部件的方法,包括以下步骤:在部件的表面中加工预定深度和预定宽度的通道,将盐溶液施加到部件表面中的通道中,并将部件加热到合适的温度以蒸发 来自盐溶液的溶剂将盐沉积在部件表面中的通道中,将部件放置在含有空气和二氧化硫的气氛中的预定温度下预定时间段以预处理晶界,并且疲劳测试 组件。 该方法对于确定燃气轮机发动机盘或燃气涡轮发动机转子叶片,尤其是冷却装置形状的盘柱或者冷却器形状的转子叶片根部的疲劳寿命是有用的。

    Apparatus for thermomechanical testing of fibers
    2.
    发明公开
    Apparatus for thermomechanical testing of fibers 失效
    Vorrichtung zur thermomechanischenPrüfungvon Fasern。

    公开(公告)号:EP0545247A1

    公开(公告)日:1993-06-09

    申请号:EP92120063.0

    申请日:1992-11-25

    IPC分类号: G01N3/18 G01N3/08

    摘要: The invention provides a fiber testing device for thermomechanical testing of fibers which preferably inludes a linear step motor (10) coupled to a first fiber gripping jaw (18). A second fiber gripping jaw (24) is positioned in linear relation to the first gripping jaw (18) and is coupled to a load cell (32). Advantageously, the apparatus includes a chamber (43) for maintaining a fiber test specimen (20) in a substantially thermally isolated environment during testing of the fiber. A heating means (62) and a cooling means (63) are connected to the chamber (43). The heating means (62) and cooling means (63) are controlled by a control means (70,72,80) which also controls the position of the linear step motor (10). The fiber testing device of the invention is capable of performing complicated mechanical and thermal fiber testing protocols without operator involvement except for initiation of the testing sequence.

    摘要翻译: 本发明提供一种用于纤维的热机械测试的纤维测试装置,其优选地包括联接到第一纤维夹持爪(18)的线性步进马达(10)。 第二纤维夹持爪(24)以与第一夹钳(18)成线性关系的方式定位并联接到测力传感器(32)。 有利地,该装置包括用于在纤维测试期间将纤维试样(20)保持在基本上热隔离的环境中的室(43)。 加热装置(62)和冷却装置(63)连接到腔室(43)。 加热装置(62)和冷却装置(63)由也控制线性步进马达(10)的位置的控制装置(70,72,80)控制。 本发明的光纤测试装置能够执行复杂的机械和热纤维测试协议,无需操作员参与,除了启动测试顺序。

    A method of fatigue testing a component
    3.
    发明公开
    A method of fatigue testing a component 审中-公开
    Verfahren zurErmüdungsprüfungeiner Komponente

    公开(公告)号:EP2662682A2

    公开(公告)日:2013-11-13

    申请号:EP13162440.5

    申请日:2013-04-05

    申请人: Rolls-Royce plc

    IPC分类号: G01N3/34

    摘要: A method of fatigue testing a component comprising the steps of machining a channel of predetermined depth and predetermined width in a surface of a component, applying a salt solution into the channel in the surface of the component and heating the component to a suitable temperature to evaporate the solvent from the salt solution to deposit the salt in the channel in the surface of the component, placing the component in an atmosphere containing air and sulphur dioxide at a predetermined temperature for a predetermined period of time to precondition the grain boundaries, and fatigue testing the component. The method is useful for determining the fatigue life of gas turbine engine discs or gas turbine engine rotor blades particularly the firtree shaped disc posts or the firtree shaped rotor blade roots.

    摘要翻译: 一种对部件进行疲劳试验的方法,包括以下步骤:在组件的表面中加工预定深度和预定宽度的通道,将盐溶液施加到部件表面中的通道中,并将组件加热到合适的温度以蒸发 来自盐溶液的溶剂将盐沉积在组分表面的通道中,将组分置于含有空气和二氧化硫的气氛中在预定温度下预定的时间段以预处理晶界,并进行疲劳测试 组件。 该方法对于确定燃气涡轮发动机盘片或燃气涡轮发动机转子叶片的疲劳寿命是有用的,特别是保持架状的盘柱或翼形的转子叶片根部。

    Verfahren zur Erfassung des Ist-Zustandes eines Behälters, insbesondere Composite-Druckgasbehälter für Fahrzeuge
    4.
    发明公开
    Verfahren zur Erfassung des Ist-Zustandes eines Behälters, insbesondere Composite-Druckgasbehälter für Fahrzeuge 失效
    一种用于检测容器的实际状态的方法,在用于车辆的特定复合材料压力气体容器

    公开(公告)号:EP0855684A2

    公开(公告)日:1998-07-29

    申请号:EP98250009.2

    申请日:1998-01-12

    IPC分类号: G07C3/00

    摘要: Die Erfindung betrifft ein Verfahren zur Erfassung des Ist-Zustandes im Hinblick auf eine Alterung eines Behälters, insbesondere Composite-Druckgasbehälter für Fahrzeuge, der in bestimmten Zyklen mit einem unter Druck stehenden Gas befüllt und entleert und je nach Ist-Zustand einer wiederkehrenden amtlichen Bauteilprüfung unterzogen wird. Erfindungsgemäß ist vorgesehen, daß zum einen die Amplitude der Druckzyklen, d. h. die Höhe des Befülldruckes minus dem Restdruck vor dem nächsten Befüllvorgang als auch die Temperaturzyklen, d. h. die Max.- und Min.-Temperaturen innerhalb eines vorgegebenen Zyklus meßtechnisch erfaßt und mittels eines geeigneten Rechenprogrammes daraus die wahre mechanische Alterung des Behälters berechnet wird, wobei zusätzlich überkritische Dehnungen in Umfangs- und / oder Längsrichtung dieses Behälters erfaßt und bei der Berechnung der wahren mechanischen Alterung mitberücksichtigt werden.

    摘要翻译: 本发明涉及一种用于检测的实际状态的关于容器的老化的方法,特别是复合材料压力气体容器用于车辆中,填充在某些周期与在压力下的气体和空对象,并根据一个反复出现的官方组件测试的实际状态 是。 根据本发明,它提供了在一方面的压力循环,D的幅度。 小时。 填充压力减去下一填充操作之前的剩余压力的高度以及温度循环,D。 小时。 是最大和预定周期内通过测量检测到的最低温度,并通过合适的计算机程序的装置计算所述容器的真实机械老化从其中,除了超临界菌株中检测到容器的所述周向和/或纵向方向和真实的计算 机械老化都考虑在内。

    VERFAHREN ZUR ERMITTLUNG EINES FÜR DEN ERMÜDUNGSZUSTAND EINES BAUTEILS CHARAKTERISTISCHEN KENNWERTS
    6.
    发明公开
    VERFAHREN ZUR ERMITTLUNG EINES FÜR DEN ERMÜDUNGSZUSTAND EINES BAUTEILS CHARAKTERISTISCHEN KENNWERTS 审中-公开
    一种用于确定条件对于分量显着价值的疲劳特性

    公开(公告)号:EP1805397A1

    公开(公告)日:2007-07-11

    申请号:EP05797303.4

    申请日:2005-10-26

    IPC分类号: F01D21/00 F02C9/00

    摘要: A method for determining an approximate value for a parameter characteristic of the fatigue state of a part as a result of a time-varying stress to which it is subjected by means of a number of load cycles should, itself, during comparatively lengthy stress cycles, enable a prognosis concerning the current fatigue state of the part, this prognosis being, in particular, adapted to the needs and suited for the real-time determination of maintenance intervals. To this end, in addition to optionally already fully completed load cycles, a first partially completed load cycle is also taken into consideration during the determination of the parameter, whereby temporary stress values for phases that have not yet been run through of the partially completed load cycle are, together with a predetermined fixed value, taken into consideration.

    Method for evaluating life of connection
    8.
    发明公开
    Method for evaluating life of connection 失效
    Verfahren zur Bestimmung der Lebensdauer einer Verbindung。

    公开(公告)号:EP0392471A2

    公开(公告)日:1990-10-17

    申请号:EP90106875.9

    申请日:1990-04-10

    IPC分类号: G01N3/00 G01N3/32 G01N3/60

    摘要: A method for evaluating the life of a connec­tion between members (1, 2, 3), comprising the steps of: extracting parameters defining the shearing strain (γ) of a predetermined model representing said connection thereby to calculate the values of plural shearing strains of said connection; calculating the equivalent strain amplitude (Δε eq ) corresponding to thermal fatigue stress for each of the values of said plural shearing strains; defining the relationship between said shearing strain and said equivalent strain amplitude; formulating a life evaluation criterion equation expressed using said equivalent strain amplitude; calculating, for said connection, the equivalent strain amplitude correspond­ing to each of the shearing strains actually measured using said equation; and substituting said equivalent strain amplitude for the life evaluation criterion equa­tion to acquire the life of said connection. Further, in this method, an equation for evaluating the advance­ment of a crack (4) is made using said equivalent strain amplitude, and said equivalent is substituted for said crack advancement evaluation equation to calculate the length of the crack (4).

    摘要翻译: 一种用于评估构件(1,2,3)之间的连接寿命的方法,包括以下步骤:提取定义表示所述连接的预定模型的剪切应变(γ)的参数,从而计算出多个剪切应变 说连接 计算对应于所述多个剪切应变的每个值的热疲劳应力的等效应变幅度(DELTAεeq eq); 限定所述剪切应变与所述等效应变振幅之间的关系; 制定使用所述等效应变幅度表示的寿命评估标准方程; 对于所述连接计算对应于使用所述等式实际测量的每个剪切应变的等效应变幅度; 并且将所述等效应变振幅代入寿命评估标准方程以获得所述连接的寿命。 此外,在该方法中,使用所述等效应变振幅来进行用于评价裂纹进展的式(4),并且将所述等效物代入所述裂纹推进评价方程式以计算裂纹的长度(4)。

    METHOD FOR MEASURING DYNAMIC VISCOELASTICITY OF PARTICULATE MATERIAL
    10.
    发明公开
    METHOD FOR MEASURING DYNAMIC VISCOELASTICITY OF PARTICULATE MATERIAL 审中-公开
    VERFAHREN ZUM MESSEN DER DYNAMISCHENVISKOELASTIZITÄTEINESTEILCHENFÖRIGGENMATERIALS

    公开(公告)号:EP2738542A1

    公开(公告)日:2014-06-04

    申请号:EP12817168.3

    申请日:2012-07-18

    发明人: KAMIYA Kazunobu

    IPC分类号: G01N19/00

    摘要: A method for measuring a dynamic viscoelasticity of a particulate material uses, as a sample to be subjected to the dynamic viscoelasticity measurement, a sheet-shaped test piece in which the particulate material to be measured is attached to an adhesion layer formed on a heat-resistant sheet base material. With regard to the measurement conditions of the dynamic viscoelasticity measurement, the measurement temperature is within a predetermined temperature range of from -150 to 300°C, the heating rate is a constant rate ranging from 0.01 to 100 °C/minute, the measurement frequency is a constant frequency ranging from 0.01 to 100 Hz, and a sine wave control tensile mode is employed. When the particulate material is attached to the adhesion layer, the particulate material crushed in advance is sprinkled on one side of the adhesion layer and then the particulate material-sprinkled surface is squeegeed and/or air-blown.

    摘要翻译: 用于测量颗粒材料的动态粘弹性的方法使用待进行动态粘弹性测量的样品的片状试验片,其中待测颗粒材料附着在形成在热敏粘弹性体上的粘合层上, 耐磨片基材。 关于动态粘弹性测量的测量条件,测量温度在-150至300℃的预定温度范围内,加热速率为0.01至100℃/分钟的恒定速率,测量频率 是0.01〜100Hz的恒定频率,采用正弦波控制拉伸模式。 当颗粒材料附着到粘合层上时,将预先粉碎的颗粒材料洒在粘合层的一侧上,然后将颗粒状材料喷洒表面进行刮刮和/或吹风。