CN115683519A - Bird bomb test apparatus and bird bomb test method - Google Patents
Bird bomb test apparatus and bird bomb test method Download PDFInfo
- Publication number
- CN115683519A CN115683519A CN202110835361.8A CN202110835361A CN115683519A CN 115683519 A CN115683519 A CN 115683519A CN 202110835361 A CN202110835361 A CN 202110835361A CN 115683519 A CN115683519 A CN 115683519A
- Authority
- CN
- China
- Prior art keywords
- bird
- test piece
- controller
- preset target
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种鸟弹试验装置和鸟弹试验方法。The invention relates to a bird bomb test device and a bird bomb test method.
背景技术Background technique
航空发动机的鸟撞试验是适航条款规定必须进行的航空发动机性能试验。在发动机适航取证时,需经过严格的试验验证其满足适航条款要求,其中有条款指出在开展鸟撞验证试验时,应充分考虑鸟弹的撞击点位置。因此,对于鸟撞试验,完善其鸟弹精确打击试验件指定位置的试验技术是民用航空发动机研制过程中的关键问题。The bird strike test of an aero-engine is a performance test of an aero-engine that must be carried out in accordance with airworthiness provisions. When the engine is airworthy and certified, it needs to go through strict tests to verify that it meets the requirements of the airworthiness clauses. There is a clause stating that when carrying out the bird strike verification test, the impact point position of the bird bomb should be fully considered. Therefore, for the bird strike test, it is a key issue in the development of civil aeroengines to improve the test technology for the bird bomb to accurately strike the designated position of the test piece.
目前,国内外鸟撞试验均有开展,相关的试验装置及试验方法更多的是针对飞机整机的鸟撞所设计,没有考虑航空发动机高速旋转过程中的试验可重复性问题,或难以达到高速转动试验件的精确打击要求。At present, bird strike tests have been carried out at home and abroad, and the related test devices and test methods are mostly designed for the bird strike of the whole aircraft, without considering the test repeatability problem during the high-speed rotation of the aero-engine, or it is difficult to achieve Accurate striking requirements for high-speed rotating test pieces.
在发明人了解的一些相关技术中,鸟弹试验装置仅能够对静止的飞机整机实施精准的打击,对于具有高速转动的叶片,无法确保对要求的打击点实施精准打击,并保证试验的可重复性。In some related technologies known to the inventor, the bird bomb test device can only carry out precise strikes on a stationary aircraft, but cannot ensure precise strikes on the required strike points for blades with high-speed rotation, and ensure the reliability of the test. repeatability.
在此需要说明的是,该背景技术部分的陈述仅提供与本发明有关的背景技术,并不必然构成现有技术。It should be noted here that the statements in the background technology section only provide background technology related to the present invention, and do not necessarily constitute prior art.
发明内容Contents of the invention
本发明提供一种鸟弹试验装置和鸟弹试验方法,以精确控制鸟撞试验的鸟弹打击点。The invention provides a bird bomb test device and a bird bomb test method to precisely control the bird bomb impact point of the bird strike test.
本发明第一方面提供一种鸟撞试验装置,包括:The first aspect of the present invention provides a bird strike test device, comprising:
真空仓;vacuum chamber;
风扇试验件,设置在真空仓内且包括转轴和沿转轴的周向设置的多个叶片,转轴绕其轴线可转动地设置以带动多个叶片转动;The fan test piece is arranged in the vacuum chamber and includes a rotating shaft and a plurality of blades arranged along the circumference of the rotating shaft, and the rotating shaft is rotatably arranged around its axis to drive the plurality of blades to rotate;
鸟弹发射装置,包括高压气体瓶、炮筒和设置在炮筒内的鸟弹,炮筒的第一端与高压气体瓶连接,炮筒的第二端与真空仓连接,鸟弹设置在炮筒内以在高压气体的冲击下离开炮筒并打击多个叶片中的预设目标叶片;The birdball launching device includes a high-pressure gas bottle, a cannon barrel and birdballs arranged in the cannon barrel. The first end of the cannon barrel is connected with the high-pressure gas bottle, the second end of the cannon barrel is connected with the vacuum chamber, and the birdball is arranged in the cannon. to leave the barrel under the impact of high-pressure gas and hit the preset target blade among the plurality of blades;
气路通断阀和控制器,气路通断阀设置在高压气体瓶和炮筒的第一端之间以控制高压气体瓶与炮筒之间气路的通断,控制器被配置为向气路通断阀发射开启信号以使高压气体冲击鸟弹,且控制器还被配置为根据预设目标叶片在风扇试验件上所处的实际角度位置控制开启信号的发射时间以使鸟弹击中预设目标叶片。The gas path on-off valve and the controller, the gas path on-off valve is arranged between the high-pressure gas bottle and the first end of the barrel to control the on-off of the gas path between the high-pressure gas bottle and the barrel, the controller is configured to The air circuit on-off valve emits an opening signal to make the high-pressure gas impact the bird bomb, and the controller is also configured to control the firing time of the opening signal according to the actual angular position of the preset target blade on the fan test piece to make the bird bomb strike Preset the target blade in .
在一些实施例中,控制器被配置为根据预设目标叶片的初始角度位置和从控制器发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度计算在控制器发射开启信号时预设目标叶片的目标角度位置,当预设目标叶片的实际角度位置为目标角度位置时,控制器发射开启信号。In some embodiments, the controller is configured to calculate the angle transmitted by the controller according to the initial angular position of the preset target blade and the angle that the fan test piece rotates during the process from when the controller sends the turn-on signal to when the birdball hits the fan test piece. When the signal is turned on, the target angular position of the target blade is preset, and when the actual angular position of the preset target blade is the target angular position, the controller sends the turn-on signal.
在一些实施例中,从控制器发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度通过从控制器发射开启信号到鸟弹打击到风扇试验件的过程所花费的时间和风扇试验件的转速来计算获取。In some embodiments, the rotation angle of the fan test piece during the process from the controller sending the opening signal to the birdshot hitting the fan test piece is calculated by the time spent from the controller sending the opening signal to the birdshot hitting the fan test piece. The time and the speed of the fan test piece are calculated and obtained.
在一些实施例中,从控制器发射开启信号到鸟弹打击到风扇试验件的过程所花费的时间包括从发射开启信号到气路通断阀的阀门开启所需的第一时间、鸟弹飞过炮筒所需的第二时间以及鸟弹从炮筒的第二端到打击到风扇试验件的第三时间。In some embodiments, the time taken for the process from when the controller sends the opening signal to when the bird bomb hits the fan test piece includes the first time required from when the opening signal is sent to when the valve of the air circuit on-off valve is opened, the bird bomb flies The second time required to pass through the barrel and the third time for the birdshot to strike the fan test piece from the second end of the barrel.
在一些实施例中,鸟弹打击预设目标叶片的角度误差小于多个叶片中每个叶片覆盖的角度值。In some embodiments, the birdshot hits the predetermined target blade with an angle error less than the angle value covered by each blade of the plurality of blades.
在一些实施例中,多个叶片的数量小于等于18。In some embodiments, the number of blades is 18 or less.
在一些实施例中,控制器被配置为根据预设目标叶片的编号计算获得预设目标叶片的初始角度位置。In some embodiments, the controller is configured to calculate and obtain the initial angular position of the preset target blade according to the number of the preset target blade.
本发明第二方面提供一种基于上述鸟撞试验装置的鸟撞试验方法,包括如下步骤:The second aspect of the present invention provides a bird strike test method based on the above bird strike test device, comprising the following steps:
确定多个叶片中一个叶片为预设目标叶片并计算预设目标叶片在风扇试验件上的初始角度位置;Determining one of the plurality of blades as the preset target blade and calculating the initial angular position of the preset target blade on the fan test piece;
获取从控制器发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度;Obtain the angle of rotation of the fan test piece during the process from the controller launching the opening signal to the birdshot hitting the fan test piece;
根据初始角度位置和风扇试验件转过的角度计算在发射信号时预设目标叶片的目标角度位置;以及Calculating the target angular position of the preset target blade when the signal is emitted based on the initial angular position and the angle through which the fan test piece is turned; and
对预设目标叶片的实际角度位置进行实时检测,当预设目标叶片的实际角度位置为目标角度位置时,控制器发射开启信号。The actual angular position of the preset target blade is detected in real time, and when the actual angular position of the preset target blade is the target angular position, the controller sends an opening signal.
基于本发明提供的各方面,鸟撞试验装置包括真空仓、风扇试验件、鸟弹发射装置、气路通断阀和控制器。风扇试验件设置在真空仓内且包括转轴和沿转轴的周向设置的多个叶片,转轴绕其轴线可转动地设置以带动多个叶片转动。鸟弹发射装置包括高压气体瓶、炮筒和设置在炮筒内的鸟弹,炮筒的第一端与高压气体瓶连接,炮筒的第二端与真空仓连接,鸟弹设置在炮筒内以在高压气体的冲击下离开炮筒并打击多个叶片中的预设目标叶片。气路通断阀设置在高压气体瓶和炮筒的第一端之间以控制高压气体瓶与炮筒之间气路的通断,控制器被配置为根据预设目标叶片在风扇试验件上所处的实际角度位置控制气路通断阀的开启时间以使鸟弹击中预设目标叶片。本发明的试验装置对预设目标叶片的目标角度位置进行预判,并在预设目标叶片在风扇试验件上所处的实际角度位置为上述目标角度位置时,发射开启信号,进而实现对预设目标叶片的精确击中。Based on the aspects provided by the present invention, the bird strike test device includes a vacuum chamber, a fan test piece, a bird bomb launching device, an air circuit on-off valve and a controller. The fan test piece is arranged in the vacuum chamber and includes a rotating shaft and a plurality of blades arranged along the circumference of the rotating shaft, and the rotating shaft is rotatably arranged around its axis to drive the plurality of blades to rotate. The birdball launching device includes a high-pressure gas bottle, a barrel and a birdball arranged in the barrel. The first end of the barrel is connected to the high-pressure gas bottle, the second end of the barrel is connected to a vacuum chamber, and the birdshot is arranged in the barrel. Under the impact of high-pressure gas, it leaves the barrel and strikes the predetermined target blade among the plurality of blades. The gas path on-off valve is arranged between the high-pressure gas bottle and the first end of the gun barrel to control the on-off of the gas path between the high-pressure gas bottle and the gun barrel, and the controller is configured to operate on the fan test piece according to the preset target blade. The actual angular position controls the opening time of the air path on-off valve so that the birdshot hits the preset target blade. The test device of the present invention predicts the target angular position of the preset target blade, and when the actual angular position of the preset target blade on the fan test piece is the above-mentioned target angular position, an opening signal is emitted, thereby realizing the prediction Set the precise hit of the target blade.
通过以下参照附图对本发明的示例性实施例的详细描述,本发明的其它特征及其优点将会变得清楚。Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.
附图说明Description of drawings
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:
图1为本发明实施例的鸟弹试验装置的结构示意图。FIG. 1 is a schematic structural view of a birdball test device according to an embodiment of the present invention.
图2为图1中风扇试验件的结构示意图。Fig. 2 is a schematic structural diagram of the fan test piece in Fig. 1 .
图3为控制器发射开启信号时风扇试验件的示意图。Fig. 3 is a schematic diagram of the fan test piece when the controller transmits the start signal.
图4为本发明实施例的鸟弹试验方法的控制流程示意图。Fig. 4 is a schematic diagram of the control flow of the birdshot test method according to the embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。以下对至少一个示例性实施例的描述实际上仅仅是说明性的,决不作为对本发明及其应用或使用的任何限制。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
除非另外具体说明,否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。同时,应当明白,为了便于描述,附图中所示出的各个部分的尺寸并不是按照实际的比例关系绘制的。对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论,但在适当情况下,技术、方法和设备应当被视为授权说明书的一部分。在这里示出和讨论的所有示例中,任何具体值应被解释为仅仅是示例性的,而不是作为限制。因此,示例性实施例的其它示例可以具有不同的值。应注意到:相似的标号和字母在下面的附图中表示类似项,因此,一旦某一项在一个附图中被定义,则在随后的附图中不需要对其进行进一步讨论。The relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific values should be construed as illustrative only, and not as limiting. Therefore, other examples of the exemplary embodiment may have different values. It should be noted that like numerals and letters denote like items in the following figures, therefore, once an item is defined in one figure, it does not require further discussion in subsequent figures.
为了便于描述,在这里可以使用空间相对术语,如“在……之上”、“在……上方”、“在……上表面”、“上面的”等,用来描述如在图中所示的一个器件或特征与其他器件或特征的空间位置关系。应当理解的是,空间相对术语旨在包含除了器件在图中所描述的方位之外的在使用或操作中的不同方位。例如,如果附图中的器件被倒置,则描述为“在其他器件或构造上方”或“在其他器件或构造之上”的器件之后将被定位为“在其他器件或构造下方”或“在其他器件或构造之下”。因而,示例性术语“在……上方”可以包括“在……上方”和“在……下方”两种方位。该器件也可以其他不同方式定位,并且对这里所使用的空间相对描述作出相应解释。For the convenience of description, spatially relative terms may be used here, such as "on ...", "over ...", "on the surface of ...", "above", etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as "above" or "above" other devices or configurations would then be oriented "beneath" or "above" the other devices or configurations. under other devices or configurations”. Thus, the exemplary term "above" can encompass both an orientation of "above" and "beneath". The device may be positioned in other different ways and the spatially relative descriptions used herein interpreted accordingly.
本发明实施例的鸟撞试验装置通过精准计算从发射开启信号到鸟弹打击到预设目标叶片所需的时间预判在发射打击信号时预设目标叶片所处的角度位置,进而在预设目标叶片未到达打击点时就提前发射打击信号,从而精准控制鸟弹打击风扇试验件的打击点。The bird strike test device of the embodiment of the present invention predicts the angular position of the preset target blade when the strike signal is emitted by accurately calculating the time required from the launch of the opening signal to the time required for the birdshot to hit the preset target blade, and then in the preset When the target blade does not reach the strike point, the strike signal is launched in advance, so as to accurately control the strike point of the bird bomb hitting the fan test piece.
参考图1至图3,在一些实施例中,鸟撞试验装置包括真空仓5、风扇试验件4、鸟弹发射装置、气路通断阀7和控制器6。Referring to FIG. 1 to FIG. 3 , in some embodiments, the bird strike test device includes a
风扇试验件4设置在真空仓5内且包括转轴和沿转轴的周向设置的多个叶片41,转轴绕其轴线可转动地设置以带动多个叶片41转动。鸟弹发射装置包括高压气体瓶1、炮筒2和设置在炮筒2内的鸟弹3,炮筒2的第一端与高压气体瓶1连接,炮筒2的第二端与真空仓5连接,鸟弹3设置在炮筒2内以在高压气体的冲击下离开炮筒2并打击多个叶片中的预设目标叶片。气路通断阀7设置在高压气体瓶1和炮筒2的第一端之间以控制高压气体瓶1与炮筒2之间气路的通断,控制器6被配置为根据预设目标叶片在风扇试验件4上所处的实际角度位置控制气路通断阀7的开启时间以使鸟弹3击中预设目标叶片。The fan test piece 4 is arranged in the
从控制器6发射开启信号以开启气路通断阀7到鸟弹3真正击中预设目标叶片,风扇试验件4会持续转动,因此若想精确击中预设目标叶片,要对预设目标叶片的目标角度位置进行预判,并在预设目标叶片在风扇试验件4上所处的实际角度位置为上述目标角度位置时,发射开启信号,进而实现对预设目标叶片的精确击中。When the controller 6 sends an opening signal to open the air path on-off
具体地,参考图2,当风扇试验件4静止不转动时,则鸟弹打击点A位于角度为零的叶片上。本实施例的风扇试验件4绕其转轴持续转动,将风扇试验件4的第N个叶片41设置为预设目标叶片,那么为了使鸟弹精准击中该预设目标叶片,需要在鸟弹到达风扇试验件4的时候,该预设目标叶片也刚好转动到该位置,从而使鸟弹打击点A刚好位于预设目标叶片上。Specifically, referring to FIG. 2 , when the fan test piece 4 is stationary and does not rotate, the birdshot strike point A is located on the blade with an angle of zero. The fan test piece 4 of this embodiment continues to rotate around its axis of rotation, and the
在一些实施例中,控制器6被配置为根据预设目标叶片的初始角度位置和从控制器6发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度计算在控制器发射开启信号时预设目标叶片的角度位置。In some embodiments, the controller 6 is configured to calculate the rotation angle of the fan test piece according to the initial angular position of the preset target blade and the turning angle of the fan test piece during the process from when the controller 6 sends the opening signal to the birdshot hits the fan test piece. The angular position of the target blade is preset when the sensor emits an opening signal.
参考图2,预设目标叶片的初始角度位置从控制器6发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度为β,那么在控制器发射开启信号时预设目标叶片的目标角度位置 Referring to Figure 2, preset the initial angular position of the target blade The angle that the fan test piece turns during the process from when the controller 6 sends the opening signal to when the birdball hits the fan test piece is β, then the target angle position of the target blade is preset when the controller sends the opening signal
在一些实施例中,从控制器6发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度β通过从控制器6发射开启信号到鸟弹打击到风扇试验件的过程所花费的时间和风扇试验件的转速来获取。具体地,β=T·ω。In some embodiments, the angle β that the fan test piece rotates during the process from when the controller 6 sends the opening signal to the time when the birdshot hits the fan test piece is determined by the process from the controller 6 when the opening signal is sent to the time when the birdshot hits the fan test piece. The time taken and the rotational speed of the fan test piece to obtain. Specifically, β=T·ω.
具体地,从控制器6发射开启信号到鸟弹打击到风扇试验件的过程所花费的时间T包括从发射开启信号到气路通断阀的阀门开启所需的第一时间Topen、鸟弹飞过炮筒所需的第二时间TAB以及鸟弹从炮筒的第二端到撞击到风扇试验件的第三时间TBC。也就是说T=Topen+TAB+TBC。具体地,从发射开启信号到气路通断阀的阀门开启所需的第一时间Topen指的是从开启信号被发出到气路通断阀的电池开启的时间。Specifically, the time T spent from the controller 6 sending the opening signal to the process of the bird bomb hitting the fan test piece includes the first time T open required from the sending of the opening signal to the valve opening of the air circuit on-off valve, the bird bomb A second time T AB required to fly through the barrel and a third time T BC for the birdshot to travel from the second end of the barrel to impacting the fan test piece. That is to say T=T open +T AB +T BC . Specifically, the first time T open required from the sending of the opening signal to the opening of the valve of the gas path on-off valve refers to the time from when the opening signal is sent to the opening of the battery of the gas path on-off valve.
在一些实施例中,鸟弹打击预设目标叶片的角度误差小于多个叶片中每个叶片覆盖的角度值。此处每个叶片覆盖的角度值指的是360°除以叶片的数量得到的角度,而不是每个叶片的实体部分覆盖的值。In some embodiments, the birdshot hits the predetermined target blade with an angle error less than the angle value covered by each blade of the plurality of blades. Here, the angle value covered by each blade refers to the angle obtained by dividing 360° by the number of blades, rather than the value covered by the solid part of each blade.
在一些实施例中,多个叶片的数量小于等于18。In some embodiments, the number of blades is 18 or less.
在一些实施例中,控制器被配置为根据预设目标叶片的编号计算获得预设目标叶片的初始角度位置。也就是说在安装时,将零号叶片安装在角度为零的位置。例如第N个叶片的初始角度位置其中N为叶片的编号。In some embodiments, the controller is configured to calculate and obtain the initial angular position of the preset target blade according to the number of the preset target blade. That is to say, when installing, the zero blade is installed at the position where the angle is zero. For example, the initial angular position of the Nth blade Where N is the number of the blade.
本发明实施例还提供一种鸟撞试验装置的鸟撞试验方法,包括如下步骤:The embodiment of the present invention also provides a bird strike test method of a bird strike test device, comprising the following steps:
确定多个叶片中一个叶片为预设目标叶片并计算预设目标叶片在风扇试验件上的初始角度位置;Determining one of the plurality of blades as the preset target blade and calculating the initial angular position of the preset target blade on the fan test piece;
获取从控制器发射开启信号到鸟弹打击到风扇试验件的过程中风扇试验件转过的角度;Obtain the angle of rotation of the fan test piece during the process from the controller launching the opening signal to the birdshot hitting the fan test piece;
根据初始角度位置和风扇试验件转过的角度计算在发射信号时预设目标叶片的目标角度位置;以及Calculating the target angular position of the preset target blade when the signal is emitted based on the initial angular position and the angle through which the fan test piece is turned; and
对预设目标叶片的角度位置进行实时检测,在预设目标叶片到达目标角度位置时,控制器发射开启信号。The angular position of the preset target blade is detected in real time, and when the preset target blade reaches the target angular position, the controller sends an opening signal.
本发明实施例的鸟撞试验方法通过对风扇试验件的目标角度位置进行计算和预判,在预设目标叶片到达目标角度位置时控制器发射开启信号,进而实现对预设目标叶片的精确打击。对预设目标叶片的精确打击可有助于对多个叶片进行重复试验。The bird strike test method of the embodiment of the present invention calculates and predicts the target angular position of the fan test piece, and when the preset target blade reaches the target angular position, the controller sends an opening signal, thereby realizing the precise strike on the preset target blade . Precise strikes on preset target blades can facilitate repeated trials on multiple blades.
具体地,对预设目标叶片的角度位置进行实时检测,可以直接利用传感器对预设目标叶片的角度位置进行直接的实时检测。也可以对整个风扇试验件的角度位置进行检测来转换得到预设目标叶片的角度位置,例如可以第零个叶片为参照来对风扇试验件的角度位置进行检测,进而也可以获得预设目标叶片的角度位置。Specifically, the real-time detection of the angular position of the preset target blade can directly use the sensor to directly detect the angular position of the preset target blade in real time. It is also possible to detect the angular position of the entire fan test piece to convert the angular position of the preset target blade, for example, the zeroth blade can be used as a reference to detect the angular position of the fan test piece, and then the preset target blade can also be obtained the angular position.
下面根据图1至图4对本发明一个具体实施例的航空发动机的鸟撞试验装置的结构和工作过程进行详细说明。The structure and working process of an aeroengine bird strike test device according to a specific embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 4 .
如图1所示,在本实施例中,航空发动机的鸟撞试验装置包括高压气瓶1、炮筒2、鸟弹3、风扇试验件4、真空仓5、控制器6、气路通断阀7、鸟弹弹托8、第一压力传感器9、第一温度传感器14、第二压力传感器11、第二温度传感器10、第三压力传感器13、第三温度传感器12和激光测速速度仪15。As shown in Figure 1, in this embodiment, the bird strike test device of the aero-engine includes a high-
其中高压气瓶1内存储有高压空气。炮筒2用于供鸟弹3在其中加速。鸟弹3用于模拟真实鸟。风扇试验件4包括多个叶片。真空仓5用来模拟航空发动机鸟撞试验环境。第一压力传感器9用于检测高压气瓶1内的空气压力并反馈至控制器6,第一温度传感器14用于检测高压气瓶1内的空气温度并反馈至控制器6,第二压力传感器11用于检测炮筒2内的空气压力并反馈至控制器6,第二温度传感器10用于检测炮筒2内的温度并反馈至控制器6,第三压力传感器13用于检测真空仓5内的压力并反馈至控制器6,第三温度传感器12用于检测真空仓5内的温度并反馈至控制器6,激光测速速度仪5用于对鸟弹的速度进行检测并反馈至控制器6,进一步地,该鸟撞试验装置还包括用于对风扇试验件的转速进行检测的转速传感器以及用于对风扇试验件的转动角度进行检测的角度传感器,控制器6用于接收上述各个压力传感器、温度传感器、激光测速速度仪的信号以及转速传感器和角度传感器的信号,并根据信号发出控制指令。Wherein the high-
气路通断阀7是快速开合的电磁阀,阀门开启,则鸟弹在高压空气的作用下飞过炮筒而实现对风扇试验件的打击。The gas path on-off
鸟弹弹托8用于装载鸟弹3并在炮筒2内对鸟弹加速,加速后的鸟弹离开炮筒后近似匀速前进,最终打击在转动中的风扇试验件4上。The birdball support 8 is used to load the birdball 3 and accelerate the birdshot in the
如图2所示,该风扇试验件4包括18片风扇叶片,预设目标叶片为第N片叶片,那么该叶片对应的初始角度位置为 As shown in Figure 2, the fan test piece 4 includes 18 fan blades, and the preset target blade is the Nth blade, so the corresponding initial angular position of the blade is
图3示出控制器在发射开启信号时风扇试验件的状态,如图1所示,A位于炮筒起始端,B位于炮筒末端,C位于风扇试验件打击点。由于风扇试验件处在高速旋转状态中,需要考虑从开启信号发出到电池阀门开启的时间Topen,鸟弹飞过炮筒的时间TAB,以及鸟弹脱离炮筒至撞击试验件的时间TBC。而试验件在这段时间内转过的角度为·ω。因此,为使鸟弹精准打击在预设的第N片风扇叶片,即相位的位置,开启信号发出时对应的试验件角度信息应为θ=2πN/18-·ω。Figure 3 shows the state of the fan test piece when the controller emits an opening signal. As shown in Figure 1, A is at the beginning of the barrel, B is at the end of the barrel, and C is at the impact point of the fan test piece. Since the fan test piece is in a state of high-speed rotation, it is necessary to consider the time T open from the opening signal to the opening of the battery valve, the time T AB for the birdball to fly through the barrel, and the time T for the birdball to leave the barrel and hit the test piece BC . The angle turned by the test piece during this period is ω. Therefore, in order for the birdshot to hit the preset Nth fan blade precisely, that is, the phase , the corresponding angle information of the test piece when the opening signal is sent out should be θ=2πN/18-·ω.
图4给出本实施例的鸟撞试验方法的流程图,具体使用方法为:根据试验要求,调整试验温度、压力、鸟弹质量均为规定的准确数值。预设鸟弹的打击点位于风扇的第N片叶片,计算出鸟弹发射时的预设目标叶片的角度信息为θ=2πN/18-·ω。启动风扇试验件后再次确认试验温度、压力、鸟弹质量均为规定的准确数值。确认无误后操作人员操作鸟炮发射。控制器接收到操作人员的鸟炮发射信号后,对风扇试验件的预设目标叶片所处的角度进行判定,当所处相位为θ=2πN/18-·ω时,发出鸟炮发射指令,打开气路通断阀7。鸟弹随之射出,准确打击在预设的第N片叶片对应的撞击点。Fig. 4 shows the flow chart of the bird strike test method of this embodiment, the specific use method is: according to the test requirements, adjust the test temperature, pressure, and bird bomb mass to the specified accurate values. The impact point of the preset birdshot is located on the Nth blade of the fan, and the calculated angle information of the preset target blade when the birdshot is launched is θ=2πN/18-·ω. After starting the fan test piece, reconfirm that the test temperature, pressure, and bird bomb mass are all the specified accurate values. After confirming that it is correct, the operator operates the bird cannon to launch. After the controller receives the bird cannon launch signal from the operator, it judges the angle of the preset target blade of the fan test piece. When the phase is θ=2πN/18-ω, it sends a bird cannon launch command, and opens Gas circuit on-off
为了保证试验的可重复性,该鸟弹试验装置的气路通断阀的电池开关的时间误差ΔTopen≦0.1ms。该试验装置控制鸟炮飞出炮筒口的速度为v=130m/s(±1%),LBC的长度为1m,因此在匀速飞行段产生的时间误差ΔTBC<1/(130·(1-1%))-1/(130·(1+1%))=0.15ms。本试验装置炮筒的长度LAB为7m,通过精确控制试验温度、气压以及鸟弹质量,能够保证鸟弹在炮筒内停留的时间误差ΔTAB<0.45ms,因此该试验装置的鸟弹撞击时间总误差ΔT=ΔTopen+ΔTAB+ΔTBC<0.6ms。In order to ensure the repeatability of the test, the time error ΔT open of the battery switch of the air circuit on-off valve of the bird bomb test device is ≦0.1ms. The test device controls the speed at which the bird cannon flies out of the gun barrel mouth to be v=130m/s (±1%), and the length of L BC is 1m, so the time error ΔT BC <1/(130·(1 -1%))-1/(130·(1+1%))=0.15ms. The length L AB of the barrel of this test device is 7m. By precisely controlling the test temperature, air pressure and quality of the birdshot, it can ensure that the time error ΔT AB of the birdshot staying in the barrel is <0.45ms. Therefore, the birdshot impact of the test device Total time error ΔT=ΔT open +ΔT AB +ΔT BC <0.6ms.
同时,该试验装置的转速测量误差Δω=±2rpm≦4/60rps,该试验装置发射的鸟炮飞行时间T<0.2s,风扇试验件的转速ω<4000rpm。At the same time, the speed measurement error of the test device is Δω=±2rpm≦4/60rps, the flight time of the bird cannon fired by the test device is T<0.2s, and the speed of the fan test piece ω<4000rpm.
基于以上数据,与之对应的撞击点相位误差为Δβ=ΔT·ω+T·Δω<0.0006s·4000/60rps·360+0.2s·4/60rps·360=19.2°<360/18=20°。即该试验装置打击点的角度误差小于一个风扇叶片所覆盖的角度值,因此该试验装置可以实现18叶片以下,4000转以下的风扇试验件的精确鸟撞试验,进而实现可重复性的鸟撞试验。本发明实施例的试验装置保证了鸟撞试验的精准打击,因此实际试验中可以大幅减少试验件叶片数量,大幅降低试验成本。Based on the above data, the corresponding impact point phase error is Δβ=ΔT·ω+T·Δω<0.0006s·4000/60rps·360+0.2s·4/60rps·360=19.2°<360/18=20° . That is, the angle error of the impact point of the test device is smaller than the angle value covered by a fan blade, so the test device can realize the accurate bird strike test of the fan test piece with less than 18 blades and less than 4000 revolutions, and then realize repeatable bird strike test. The test device of the embodiment of the present invention ensures the precise striking of the bird strike test, so the number of blades of the test piece can be greatly reduced in the actual test, and the test cost can be greatly reduced.
最后应当说明的是:以上实施例仅用以说明本发明的技术方案而非对其限制;尽管参照较佳实施例对本发明进行了详细的说明,所属领域的普通技术人员应当理解:依然可以对本发明的具体实施方式进行修改或者对部分技术特征进行等同替换;而不脱离本发明技术方案的精神,其均应涵盖在本发明请求保护的技术方案范围当中。Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications to the specific implementation of the invention or equivalent replacement of some technical features; without departing from the spirit of the technical solution of the present invention, should be included in the scope of the technical solution claimed in the present invention.
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110835361.8A CN115683519A (en) | 2021-07-23 | 2021-07-23 | Bird bomb test apparatus and bird bomb test method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110835361.8A CN115683519A (en) | 2021-07-23 | 2021-07-23 | Bird bomb test apparatus and bird bomb test method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN115683519A true CN115683519A (en) | 2023-02-03 |
Family
ID=85044279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110835361.8A Pending CN115683519A (en) | 2021-07-23 | 2021-07-23 | Bird bomb test apparatus and bird bomb test method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115683519A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117969001A (en) * | 2024-01-31 | 2024-05-03 | 重庆大学 | Bird strike test device and test method for aircraft engine parts in rotating state |
CN117969000A (en) * | 2024-01-24 | 2024-05-03 | 浙江海骆航空科技有限公司 | Bird strike test device and method for fan blade of aero-engine |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011021981A (en) * | 2009-07-15 | 2011-02-03 | Ihi Corp | Ejection tester |
CN202614500U (en) * | 2012-04-23 | 2012-12-19 | 浙江理工大学 | Positioning and phase-locking device for PIV experiment of centrifugal pump |
CN103939218A (en) * | 2014-04-02 | 2014-07-23 | 上海交通大学 | Turbofan engine inlet part birdshot impacting device |
CN104739108A (en) * | 2015-03-30 | 2015-07-01 | 上海观池文化传播有限公司 | Magic disc and method for displaying sample by utilizing magic disc |
CN108716979A (en) * | 2018-08-07 | 2018-10-30 | 中电科芜湖通用航空产业技术研究院有限公司 | Centrifugal bird impact tests system |
CN109813180A (en) * | 2018-12-03 | 2019-05-28 | 南京航空航天大学 | An air cannon positioning and firing control system and control method based on rotating blades |
CN113049205A (en) * | 2021-03-22 | 2021-06-29 | 陕西大工旭航电磁科技有限公司 | Bird collision test device based on electromagnetic loading |
-
2021
- 2021-07-23 CN CN202110835361.8A patent/CN115683519A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011021981A (en) * | 2009-07-15 | 2011-02-03 | Ihi Corp | Ejection tester |
CN202614500U (en) * | 2012-04-23 | 2012-12-19 | 浙江理工大学 | Positioning and phase-locking device for PIV experiment of centrifugal pump |
CN103939218A (en) * | 2014-04-02 | 2014-07-23 | 上海交通大学 | Turbofan engine inlet part birdshot impacting device |
CN104739108A (en) * | 2015-03-30 | 2015-07-01 | 上海观池文化传播有限公司 | Magic disc and method for displaying sample by utilizing magic disc |
CN108716979A (en) * | 2018-08-07 | 2018-10-30 | 中电科芜湖通用航空产业技术研究院有限公司 | Centrifugal bird impact tests system |
CN109813180A (en) * | 2018-12-03 | 2019-05-28 | 南京航空航天大学 | An air cannon positioning and firing control system and control method based on rotating blades |
CN113049205A (en) * | 2021-03-22 | 2021-06-29 | 陕西大工旭航电磁科技有限公司 | Bird collision test device based on electromagnetic loading |
Non-Patent Citations (1)
Title |
---|
黄福增 等: "发动机风扇转子旋转状态下鸟撞试验研究", 《实验力学》, 31 December 2020 (2020-12-31), pages 1137 - 1145 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117969000A (en) * | 2024-01-24 | 2024-05-03 | 浙江海骆航空科技有限公司 | Bird strike test device and method for fan blade of aero-engine |
CN117969001A (en) * | 2024-01-31 | 2024-05-03 | 重庆大学 | Bird strike test device and test method for aircraft engine parts in rotating state |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN115683519A (en) | Bird bomb test apparatus and bird bomb test method | |
CN111579190B (en) | A horizontal ejection-impact type blade cutting bird test device and test method | |
US20220196372A1 (en) | Archery projectile facility | |
CN101300458A (en) | Method for optimising the firing trigger of a weapon or artillery | |
KR20130087307A (en) | Trajectory correction method for artillery projectiles | |
CN102156198A (en) | Method for testing projectile muzzle speed by means of rotation speed | |
WO2016130191A1 (en) | Gun-launched ballistically-stable spinning laser-guided munition | |
EP2741070A1 (en) | Impact testing device, wind tunnel apparatus and testing method | |
GB2537664A (en) | A system for tangling a vehicle | |
CN109813180B (en) | Air cannon positioning and launching control system and control method based on rotating blades | |
CN104713428A (en) | Ground combined test device of directional fuze warhead total system and test method thereof | |
KR102072213B1 (en) | Ballistic missile for interception system performance test | |
CN110108162A (en) | A kind of drop point that motion platform long distance is thrown automatically amendment Guidance and control method | |
CN114251984A (en) | An Equivalent Target Design Method for Solid Propulsion Units | |
CN119984838A (en) | Time sequence control device and method based on impact of bird bombs emitted by electromagnetic cannons on rotating blades | |
US20250207898A1 (en) | Projectile test system | |
CN112198895A (en) | A UAV-based Guidance and Battle Guidance Coordination System and Control Method | |
CN116539266A (en) | Method for obtaining bird cutting quality in bird strike test and engine bird strike test system | |
KR101497556B1 (en) | Apparatus of controlling movement direction of small-sized flying object by using instantaneous explosion | |
EP3752786A1 (en) | Method and system for measuring airburst munition burst point | |
Guodong | The Study of the Modeling simulation for the Rocket-Assisted Cartridge | |
KR102461930B1 (en) | Weapon system doppler signal simulation device and method thereof | |
CN219416649U (en) | A device for launching hail | |
CN114777577B (en) | Control method for anti-second-level engine thrust disturbance of miniature tactical missile | |
Zhang et al. | An accurate prediction of the correction point of trajectory correction projectile based on time window technique |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination |