CN102980817A - Miniature turbine blade shearing property experiment apparatus and method - Google Patents
Miniature turbine blade shearing property experiment apparatus and method Download PDFInfo
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Abstract
一种微型涡轮叶片剪切性能实验装置及方法,它涉及一种实验装置及方法,具体涉及一种微型涡轮叶片剪切性能实验装置及方法。本发明为了解决解决传统基础实验方法无法实现对微型涡轮力学性能的测试的问题。本发明包括剪切组件、样品固定台、移动平台、底座和多个第一螺钉,移动平台安装在底座上,且移动平台可在底座的上表面上沿水平面直线移动,样品固定台通过多个第一螺钉安装在移动平台的上表面上,剪切组件设置在样品固定台的上方。本发明用于进行微型涡轮叶片剪切性能实验。
An experimental device and method for shearing performance of a micro turbine blade relates to an experimental device and a method, in particular to an experimental device and method for a shearing performance of a micro turbine blade. The invention aims to solve the problem that the traditional basic experimental method cannot realize the test of the mechanical performance of the micro-turbine. The invention comprises a shear assembly, a sample fixing platform, a mobile platform, a base and a plurality of first screws, the mobile platform is installed on the base, and the mobile platform can move linearly along the horizontal plane on the upper surface of the base, and the sample fixing platform passes through multiple The first screw is installed on the upper surface of the mobile platform, and the shearing assembly is arranged above the sample fixing platform. The invention is used for performing the shear performance experiment of the microturbine blade.
Description
技术领域technical field
本发明涉及一种实验装置及方法,具体涉及一种微型涡轮叶片剪切性能实验装置及方法。The invention relates to an experimental device and method, in particular to an experimental device and method for the shear performance of micro turbine blades.
背景技术Background technique
随着MEMS的商业化进程,微构件材料力学性能的研究成为越来越重要的一个课题。当构件小到一定程度,由于表面效应、组织结构及加工过程的影响,材料的力学性能与体相相比有显著的不同。很多传统的材料力学性能测试方法和测试仪器已经不再使用了。因此,如何获得微型结构的基本力学性能便成为MEMS设计、制造及寿命评价所迫切需要解决的问题。微型涡轮构件在微型发电机、微型发动机中有着广泛的应用前景,其使用性能决定了整个系统的使用寿命,然而关于微型涡轮力学性能测试方面的工作很少,同时,由于微型涡轮整体尺寸小,不易切割,且测试时定位比较困难等,传统的基础实验方法无法实现对其力学性能的测试。With the commercialization of MEMS, the research on the mechanical properties of micro-component materials has become an increasingly important topic. When the component is small to a certain extent, the mechanical properties of the material are significantly different from those of the bulk phase due to the influence of surface effects, organizational structure and processing. Many traditional testing methods and testing instruments for mechanical properties of materials are no longer used. Therefore, how to obtain the basic mechanical properties of microstructures has become an urgent problem to be solved in the design, manufacture and life evaluation of MEMS. Micro-turbine components have broad application prospects in micro-generators and micro-engines, and their performance determines the service life of the entire system. However, there is little work on the mechanical performance testing of micro-turbines. At the same time, due to the small overall size of micro-turbines, It is not easy to cut, and it is difficult to locate during the test. The traditional basic experimental method cannot realize the test of its mechanical properties.
发明内容Contents of the invention
本发明为解决传统基础实验方法无法实现对微型涡轮力学性能的测试的问题,进而提出一种微型涡轮叶片剪切性能实验装置及方法。In order to solve the problem that the traditional basic experiment method cannot realize the test of the mechanical performance of the micro-turbine, the invention further proposes an experimental device and method for the shear performance of the micro-turbine blade.
本发明为解决上述问题采取的技术方案是:本发明包括剪切组件、样品固定台、移动平台、底座和多个第一螺钉,移动平台安装在底座上,且移动平台可通过移动平台上的测微头在底座的上表面上水平移动,样品固定台通过多个第一螺钉安装在移动平台的上表面上,剪切组件设置在样品固定台的上方。The technical scheme adopted by the present invention to solve the above-mentioned problems is: the present invention includes a shear assembly, a sample fixing table, a mobile platform, a base and a plurality of first screws, the mobile platform is installed on the base, and the mobile platform can pass through the The micrometer head moves horizontally on the upper surface of the base, the sample fixing platform is installed on the upper surface of the mobile platform through a plurality of first screws, and the shearing assembly is arranged above the sample fixing platform.
本发明所述微型涡轮叶片剪切性能实验方法的具体步骤为:The concrete steps of microturbine blade shear performance experimental method described in the present invention are:
步骤一、将微型涡轮放入样品固定台的样品固定槽中,保持微型涡轮叶片与样品固定台的侧面垂直;Step 1. Put the micro-turbine into the sample fixing groove of the sample fixing platform, and keep the micro-turbine blade vertical to the side of the sample fixing platform;
步骤二、将底座放置在材料性能试验机上,调节移动平台使微型涡轮叶片的外圆弧与剪切压头的刃口对正;
步骤三、启动材料试验机,设定实验参数,设置剪切速度为0.1mm/min-0.5mm/min,设定实验结束条件为剪切力衰减80%;
步骤四、开始进行微型涡轮叶片剪切实验,通过试验机输出的位移-载荷曲线,得到最大剪切力F;Step 4, start the micro-turbine blade shear experiment, and obtain the maximum shear force F through the displacement-load curve output by the testing machine;
步骤五、将步骤四中得到的最大剪切力F导入剪切强度计算公式,获得微型涡轮叶片剪切强度值,剪切强度计算公式为:
公式①中τ表示前剪切强度,S表示微型涡轮叶片断面面积。In formula ①, τ represents the front shear strength, and S represents the cross-sectional area of the micro-turbine blade.
本发明的有益效果是:本发明能获得微型涡轮叶片剪切试验中的最大剪切力,并通过剪切强度计算公式计算出微型涡轮叶片剪切强度;本发明采用移动平台调节微型涡轮叶片与剪切压头之间的相对位置关系,具有移动位置精度高、结构简单、可重复操作、便于定位,尤其对于微小构件,可对其进行精确定位;本发明的样品固定台有效的限制了剪切实验中微型涡轮的转动和移动,保证了测试过程中剪切位置保持不变,本发明结构简单,操作方便。The beneficial effect of the present invention is: the present invention can obtain the maximum shearing force in the microturbine blade shear test, and calculates the microturbine blade shear strength through the shear strength calculation formula; The present invention adopts mobile platform to adjust the microturbine blade and The relative positional relationship between the shearing indenters has the advantages of high moving position accuracy, simple structure, repeatable operation, and easy positioning, especially for tiny components, which can be precisely positioned; the sample fixing table of the present invention effectively limits the shear The rotation and movement of the micro-turbine in the cutting test ensures that the cutting position remains unchanged during the test, and the invention has simple structure and convenient operation.
附图说明Description of drawings
图1是本发明的整体结构示意图,图2是图1中A向示意图。Fig. 1 is a schematic view of the overall structure of the present invention, and Fig. 2 is a schematic view in the direction of A in Fig. 1 .
具体实施方式Detailed ways
具体实施方式一:结合图1和图2说明本实施方式,本实施方式所述一种微型涡轮叶片剪切性能实验装置包括剪切组件1、样品固定台2、移动平台3、底座4和多个第一螺钉5,移动平台3安装在底座4上,且移动平台3可通过移动平台3上的测微头在底座4的上表面上水平移动,样品固定台2通过多个第一螺钉5安装在移动平台3的上表面上,剪切组件1设置在样品固定台2的上方。Specific embodiment one: this embodiment is described in conjunction with Fig. 1 and Fig. 2, and a kind of microturbine blade shear performance experimental device described in this embodiment includes shearing assembly 1,
本实施方式中移动平台3用于调整样品固定台2与剪切组件1的相对位置。In this embodiment, the
本实施方式中所测试的涡轮叶片厚度为0.1mm-0.3mm,高度为0.5mm-1.0mm,叶片呈圆弧状均布设置在微型涡轮盘上。The tested turbine blades in this embodiment have a thickness of 0.1mm-0.3mm and a height of 0.5mm-1.0mm, and the blades are uniformly arranged on the micro-turbine disk in an arc shape.
具体实施方式二:结合图1说明本实施方式,本实施方式所述一种微型涡轮叶片剪切性能实验装置的剪切组件1包括模柄6、剪切压头7和第二螺钉8,模柄6的下端设有压头卡槽6-1,剪切压头7的上端通过第二螺钉8固定安装在压头卡槽6-1内。Specific embodiment two: this embodiment is described in conjunction with Fig. 1, and the shear assembly 1 of a kind of micro-turbine blade shear performance experimental device described in this embodiment includes a
本实施方式的技术效果是:模柄6与剪切压头7是可拆卸连接,可以根据实验中样品的结构特征进行灵活的拆卸和更换,对剪切压头7进行淬火处理以提高材料的机械强度和硬度。The technical effect of this embodiment is: the
其它组成及连接关系与具体实施方式一相同。Other components and connections are the same as those in the first embodiment.
具体实施方式三:结合图1说明本实施方式,本实施方式所述一种微型涡轮叶片剪切性能实验装置的样品固定台2一侧的侧面设有样品固定槽2-1,第三螺钉9由上至下穿过样品固定槽2-1,第三螺钉9用于将样品固定槽2-1内的样品锁紧。Specific embodiment three: illustrate this embodiment in conjunction with Fig. 1, the side of the sample fixing table 2 one side of a kind of microturbine blade shear performance experiment device described in this embodiment is provided with sample fixing groove 2-1, the
本实施方式的技术效果是:样品固定台2有效的限制剪切实验中微型涡轮的转动和移动,保证了测试过程中剪切位置保持不变。The technical effect of this embodiment is: the
其它组成及连接关系与具体实施方式一相同。Other components and connections are the same as those in the first embodiment.
具体实施方式四:结合图1说明本实施方式,本实施方式所述一种微型涡轮叶片剪切性能实验装置的剪切压头7是SKD11模具钢制作的剪切压头7。Embodiment 4: This embodiment is described in conjunction with FIG. 1 . The
SKD11模具钢中的SKD11是指一种日本工具钢牌号。SKD11 in SKD11 die steel refers to a Japanese tool steel grade.
其它组成及连接关系与具体实施方式二相同。Other components and connections are the same as those in the second embodiment.
具体实施方式五:结合图1说明本实施方式,本实施方式所述一种利用具体实施方式所述装置进行微型涡轮叶片剪切性能实验的方法的具体步骤如下:Specific embodiment five: illustrate this embodiment in conjunction with Fig. 1, the concrete steps of a kind of method that utilizes the device described in specific embodiment to carry out microturbine blade shear performance experiment described in this embodiment are as follows:
步骤一、将微型涡轮放入样品固定台2的样品固定槽2-1中,保持微型涡轮叶片与样品固定台2的侧面垂直;Step 1, put the micro-turbine into the sample fixing groove 2-1 of the sample fixing table 2, and keep the micro-turbine blade vertical to the side of the sample fixing table 2;
步骤二、将底座4放置在材料性能试验机上,调节移动平台3使微型涡轮叶片的外圆弧与剪切压头7的刃口对正;
步骤三、启动材料试验机,设定实验参数,设置剪切速度为0.1mm/min-0.5mm/min,设定实验结束条件为剪切力衰减80%;
步骤四、开始进行微型涡轮叶片剪切实验,通过试验机输出的位移-载荷曲线,得到最大剪切力F;Step 4, start the micro-turbine blade shear experiment, and obtain the maximum shear force F through the displacement-load curve output by the testing machine;
步骤五、将步骤四中得到的最大剪切力F导入剪切强度计算公式,获得微型涡轮叶片剪切强度值,剪切强度计算公式为:
公式①中τ表示前剪切强度,S表示微型涡轮叶片断面面积。In formula ①, τ represents the front shear strength, and S represents the cross-sectional area of the micro-turbine blade.
步骤二中剪切位置在微型涡轮叶片的根部。In the second step, the cutting position is at the root of the micro-turbine blade.
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CN110361256A (en) * | 2019-08-22 | 2019-10-22 | 中国船舶重工集团公司第七二五研究所 | A kind of universal testing machine grip device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109738300A (en) * | 2018-10-31 | 2019-05-10 | 中国飞机强度研究所 | A kind of curved scissors combination test apparatus of pin shaft base part |
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