CN105043608A - High thrust and variable thrust vector measuring device - Google Patents
High thrust and variable thrust vector measuring device Download PDFInfo
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- CN105043608A CN105043608A CN201510412234.1A CN201510412234A CN105043608A CN 105043608 A CN105043608 A CN 105043608A CN 201510412234 A CN201510412234 A CN 201510412234A CN 105043608 A CN105043608 A CN 105043608A
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- base
- top board
- measuring device
- thrust
- way piezoelectric
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Abstract
The invention relates to a high thrust and variable thrust vector measuring device and belongs to the field of a sensor and its measurement and control. Four three-directional piezoelectric sensors are distributed in a square arrangement mode inside the device and can measure external force and external moment. The high thrust and variable thrust vector measuring device comprises an upper platen, a pedestal, four three-directional piezoelectric sensors, fastening bolts, sealing gaskets and wire connectors. The four three-directional piezoelectric sensors are placed on bosses of the pedestal. Four fastening bolts pass through the pedestal, and the sensors are screwed into threaded holes of the upper platen, thus connecting the four sensors as a whole. The device provided by the invention has a compact structure, is simple and has high rigidity and high precision. When high load or variable load is applied on the dynamometer, each parameter of measured trust vector also can be solved accurately.
Description
Technical field
The invention belongs to sensor and measurement and control area thereof, be particularly suitable for test case when dynamometer is subject to larger load or variable load.
Background technology
At present, the scheme such as multi dimension testing table and thrust vectoring test table is mainly contained to thrust vectoring test both at home and abroad.
Multi dimension test bed testing principle utilizes rigid body under space force system effect, keep the necessary condition balanced, and by reasonable Arrangement force cell on three change in coordinate axis direction, measures the constraint reaction F on three coordinate directions
x, F
y, F
zwith restraint moment M
x, M
y, M
z, then synthesize total thrust vectoring.Multi dimension test platform structure is simple, is easy to realize; Once igniting can obtain thrust vectoring relevant parameters; Be applicable to stable state thrust eccentric to measure.But six-compoent thrust test stand belongs to strain-type, its Adjustment precision depends on the influence degree that is implicative of each other between each force cell flexible element to a great extent, and system frequency response is lower, is difficult to meet the requirement of thrust eccentric measurement in precision and dynamic property.
Thrust vectoring test table also can realize the test to thrust vectoring, as domestic Aerospace Science and Technology Corporation 101 the thrust vectoring test table that has, be mainly used in the proving installation of double elements attitude control engine thrust eccentric test.Its fundamental measurement principle is that thrust vectoring to be measured decomposition and inversion be measure along the axial thrust F of X-axis
xwith the turning moment M around Z axis
z, becoming mechanism controls motivation along X-axis corner and telescopic variation amount vertically by revolving, utilizing test data to solve momental equation group after repeatedly lighting a fire and can try to achieve motor power obliquely intersected.This device confidence level is higher, but must carry out the measurement of multiple pulses thrust eccentric, and belong to accurate electromechanical equipment, complex structure, cost is higher.
Summary of the invention
The technical problem to be solved in the present invention be overcome the frequency response of said apparatus system lower, be difficult to meet accuracy requirement, the more high shortcoming of cost, design a kind of technological performance, reliable operation, compact conformation, cost is lower, and can realize the special purpose device to the test of high thrust change propulsive vector.
The technical solution used in the present invention is: a kind of high thrust change propulsive vector measuring device, adopts single power source to the test of vectorial force, comprises top board, base, three-way piezoelectric sensor, fastening bolt, gasket seal, terminal and O-ring seal.Base comprises disk and the square indentations on it, is integral type structure; Square indentations is provided with center pit, and four angles place leaves 4 boss far from sideline certain distance, and four three-way piezoelectric sensors are positioned in four boss face respectively; Top board is the square plate with center pit, top board coordinates with the square indentations of base, O-ring seal is installed in the center pit of top board, fastening bolt penetrates the center pit of three-way piezoelectric sensor through the boss through hole of base, tighten in the threaded hole of screw-in top board, three-way piezoelectric sensor and top board, base link together; Gasket seal is installed in the square indentations of base, seals fastening bolt; Terminal screws in the threaded hole of base side.
The remarkable result that the present invention has is: the maximum feature of this covering device is exactly have employed four three-way piezoelectric sensors to be distributed in device inside in the mode of arranged in squares, can measure the external force suffered by top board and moment of face.Because four sensors adopt arranged in squares structures, and dynamometer compact conformation rigidity is large, and natural frequency is higher, therefore when dynamometer is subject to larger load or varying load effect, also can go out the parameters of tested thrust vectoring by Exact Solution.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of structure of the present invention.
Fig. 2 is top board structural drawing.
Fig. 3 a is understructure upward view.
Fig. 3 b is understructure vertical view.
In figure: 1 top board, 2 bases, 3 three-way piezoelectric sensors, 4 fastening bolts, 5 gasket seals, 6 terminals, 7 exterior seal rings, 8 inner seal rings, a boss, b boss through hole, c exterior seal ring mounting groove, d inner seal ring mounting groove, e top board bottom surface, f center sensor hole, g top board threaded hole, h base groove, i threaded hole.
Embodiment
Be described with reference to the accompanying drawings specific embodiment of the invention: four boss face a of base 2 distribute in square matrices mode in the square indentations of base, four boss face are in same level, by refining and surface smoothness consistent with grinding their height of guarantee, boss face is also square, and the size that its size is greater than three-way piezoelectric sensor 3 make four three-way piezoelectric sensor stabilization be fixed on dynamometer inside, boss distance base inner wall will have certain distance, is convenient to the positioning action when three-way piezoelectric sensor loads; Four through hole b are in the center of boss face; Four three-way piezoelectric sensors 3 are positioned in four boss face, the surface of three-way piezoelectric sensor ensures flatness through grinding, be fitted in four boss face respectively, when installation four three-way piezoelectric sensors, guarantee that three-way piezoelectric sensor localization is accurate, direction is consistent, to ensure the measuring accuracy of proving installation; In the exterior seal ring mounting groove c that exterior seal ring 7 and inner seal ring 8 are installed on top board respectively and inner seal ring mounting groove d, in order to ensure good sealing; The bottom surface e of top board ensures flatness through fine grinding and grinding, be pressed on three-way piezoelectric sensor upper surface, contact with O-ring seal simultaneously, but do not compress; Fastening bolt penetrates the center pit f of three-way piezoelectric sensor through the boss through hole b of base, tighten in the threaded hole g of screw-in top board, three-way piezoelectric sensor and top board, base are linked together, notice that the degree of tightening when tightening fastening bolt 4 is consistent as far as possible, and ensure that when applying enough fastening forces each parts Relative sliding do not occur in testing; Gasket seal 5 is adhered in the groove h of base bottom, seals fastening bolt; Terminal 6 screws in the threaded hole i of base side.
Although the present invention to invention has been detailed description, not limits the present invention with above-described embodiment with above-mentioned preferred embodiment.Those skilled in the art should recognize when the technical characteristic do not departed from given by the present invention and scope, the increase done technology, with the replacement of some same contents of this area, all should belong to protection scope of the present invention.
Claims (2)
1. a high thrust change propulsive vector measuring device, it is characterized in that, adopt single power source to the test of vectorial force, this high thrust change propulsive vector measuring device comprises top board, base, three-way piezoelectric sensor, fastening bolt, gasket seal, terminal and O-ring seal; Base comprises disk and the square indentations on it, is integral type structure; Square indentations is provided with center pit, and four angles place leaves 4 boss far from sideline certain distance, and four three-way piezoelectric sensors are positioned in four boss face respectively; Top board is the square plate with center pit, top board coordinates with the square indentations of base, O-ring seal is installed in the center pit of top board, fastening bolt penetrates the center pit of three-way piezoelectric sensor through the boss through hole of base, tighten in the threaded hole of screw-in top board, three-way piezoelectric sensor and top board, base link together; Gasket seal is installed in the square indentations of base, seals fastening bolt; Terminal screws in the threaded hole of base side.
2. high thrust change propulsive vector measuring device according to claim 1, is characterized in that, the direction of described three-way piezoelectric sensor is consistent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412234.1A CN105043608A (en) | 2015-07-13 | 2015-07-13 | High thrust and variable thrust vector measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412234.1A CN105043608A (en) | 2015-07-13 | 2015-07-13 | High thrust and variable thrust vector measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105043608A true CN105043608A (en) | 2015-11-11 |
Family
ID=54450329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510412234.1A Pending CN105043608A (en) | 2015-07-13 | 2015-07-13 | High thrust and variable thrust vector measuring device |
Country Status (1)
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| CN (1) | CN105043608A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910750A (en) * | 2016-04-11 | 2016-08-31 | 沈阳工业大学 | Pumping device impeller dynamic circumference vector force measuring device and method |
| CN107806950A (en) * | 2017-10-24 | 2018-03-16 | 大连理工大学 | A kind of high thrust vector vertical device for testing structure |
| CN107944161A (en) * | 2017-11-29 | 2018-04-20 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of load calculation method for thrust vectoring engine mount |
| CN108981895A (en) * | 2018-06-25 | 2018-12-11 | 吉林大学 | A kind of Spatial Multi-Dimensional is outside one's consideration power sense mechanism measuring instrument |
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| CN1401977A (en) * | 2001-08-10 | 2003-03-12 | 大连理工大学 | Torductor |
| US20030145657A1 (en) * | 2000-02-07 | 2003-08-07 | Paul Engler | Test device for determining the friction and prestress values of screwed connections |
| CN104280163A (en) * | 2014-09-26 | 2015-01-14 | 大连理工大学 | Piezoelectric sensor pre-tightening device |
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2015
- 2015-07-13 CN CN201510412234.1A patent/CN105043608A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030145657A1 (en) * | 2000-02-07 | 2003-08-07 | Paul Engler | Test device for determining the friction and prestress values of screwed connections |
| CN1401977A (en) * | 2001-08-10 | 2003-03-12 | 大连理工大学 | Torductor |
| CN104280163A (en) * | 2014-09-26 | 2015-01-14 | 大连理工大学 | Piezoelectric sensor pre-tightening device |
Non-Patent Citations (4)
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| DIRK DIDDENS,DOMINIEK REYNAERTS,HENDRIK VAN CRUSSEL: "Design of a ring-shaped three-axis micro force/torque sensor", 《SENSORS AND ACTUATORS A：PHYSICAL》 * |
| 张学军: "小型发动机推力矢量测试技术的研究", 《万方数据知识服务平台》 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910750A (en) * | 2016-04-11 | 2016-08-31 | 沈阳工业大学 | Pumping device impeller dynamic circumference vector force measuring device and method |
| CN107806950A (en) * | 2017-10-24 | 2018-03-16 | 大连理工大学 | A kind of high thrust vector vertical device for testing structure |
| CN107944161A (en) * | 2017-11-29 | 2018-04-20 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of load calculation method for thrust vectoring engine mount |
| CN108981895A (en) * | 2018-06-25 | 2018-12-11 | 吉林大学 | A kind of Spatial Multi-Dimensional is outside one's consideration power sense mechanism measuring instrument |
| CN108981895B (en) * | 2018-06-25 | 2023-09-29 | 吉林大学 | Space multidimensional external force sensing mechanical measuring instrument |
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