CN106066244A - A kind of large inertia torsional flexibility load simulating device - Google Patents
A kind of large inertia torsional flexibility load simulating device Download PDFInfo
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- CN106066244A CN106066244A CN201610630903.7A CN201610630903A CN106066244A CN 106066244 A CN106066244 A CN 106066244A CN 201610630903 A CN201610630903 A CN 201610630903A CN 106066244 A CN106066244 A CN 106066244A
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- suspension ring
- single pendulum
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- thread suspension
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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Abstract
The invention discloses a kind of large inertia torsional flexibility load simulating device, the shape and size of two vertical strutbeams are all consistent, have elongated slot in the middle of it, and lower end is bolted with mounting disc, and upper end is connected with horizontal strutbeam by bolt；Bearing block is secured by bolts in the middle of two vertical strutbeams, and bearing block can slide up and down along elongated slot；Bearing block is attached by interference fit with bearing inner race；Have circular hole in the middle of single pendulum beam, be connected with bearing outer ring by interference fit；Single pendulum beam two ends are attached by bolt and two single pendulum masses；Having tapped through hole in the middle of single pendulum mass, its underpart can be connected with weight mass block by bolt, and top is tightened with external screw thread suspension ring by screwed hole；Have six through holes on horizontal strutbeam, be connected with female thread suspension ring by bolt；To be attached by steel wire rope between external screw thread suspension ring and corresponding female thread suspension ring.This analog can produce the simple pendulum oscillation of three torsional freedoms under dynamic excitation.
Description
Technical field
The present invention relates to a kind of large inertia torsional flexibility load simulating device, can be used for the simulated solar wing, to realize its ground
Face dynamic test.
Background technology
Current spacecraft broadly falls into large-scale flexible expansion mechanism mostly, and with substantial amounts of optical element, they are right
Pointing accuracy and degree of stability all propose the highest requirement.It addition, in modern spacecraft attitude control system, reaction wheel,
Single frame moment gyro and solar wing drive mechanism etc. are the critical elements in its control system, and they are providing the control of necessity
While power, also can cause some nuisance vibrations (for the sake of simplicity, below above-mentioned three germlines being completely referred to as disturbing source).This
Wherein, the disturbance produced at torsional freedom when solar wing drive mechanism drives solar wing to run concentrates on low frequency range, along with height
The development of rail remote sensing satellite, the time of exposure of camera significantly extends, and the service behaviour of satellite is the most sensitive to low-frequency excitation, therefore
Carry out disturbance characteristic test when solar wing drive mechanism drives solar wing to run on ground, with research, there is very important work
Cheng Yiyi.
Real solar wing shape, size, quality, rotary inertia and flexibility are the biggest, are difficult under gravity environment
Directly launching, the disturbance characteristic therefore directly tested when solar wing drive mechanism drives solar wing to run by ground experiment is difficult to
Realize, design a fictitious load that rotary inertia is big, eigentone is low the most necessary.
At present, there is not yet the reported in literature about this type of large inertia torsional flexibility load simulating device both at home and abroad.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, it is provided that a kind of large inertia torsional flexibility is born
Carry analog, be used for simulating true solar wing, drive this analog to transport by ground experiment test solar wing drive mechanism
Disturbance characteristic during row, during to realize driving true solar wing in orbit solar wing drive mechanism, produced disturbance is pre-
Meter.
The invention solves the problems that its technical problem be the technical scheme is that a kind of large inertia torsional flexibility load simulation dress
Put, as shown in Figure 4, including mounting disc, two vertical strutbeams, horizontal strutbeam, three single pendulum beams, six single pendulum masses, counterweights
Mass, three bearing blocks, three groups of steel wire ropes, six female thread suspension ring, six external screw thread suspension ring and three bearings；Three groups of steel
Cord often group is formed by the steel wire rope that two root length degree are identical, and external screw thread suspension ring and female thread suspension ring form one group and hang
Ring, forms six groups of suspension ring altogether, and the shape and size of two vertical strutbeams are all consistent, have elongated slot in the middle of it；Two vertical strutbeams
Lower end is connected with mounting disc by bolt；Two vertical strutbeam upper ends are connected with horizontal strutbeam by bolt；Three bearing blocks lead to
Cross bolt to be fixed in the middle of two vertical strutbeams, and can slide up and down along elongated slot；Three bearing blocks and three bearing inner races pass through
Interference fit is attached；Have circular hole in the middle of three single pendulum beams, be connected with three bearing outer rings by interference fit；Three lists
Balance arm two ends are attached by bolt and six single pendulum masses；Tapped through hole is had, under it in the middle of six single pendulum masses
Portion can be connected with weight mass block by bolt, and top is tightened by screwed hole and six external screw thread suspension ring；Open on horizontal strutbeam
There are six through holes, connected by bolt and six female thread suspension ring；Six external screw thread suspension ring are hung with corresponding six female threads
It is attached by three groups of steel wire ropes between ring.This analog can produce the single pendulum of three torsional freedoms under dynamic excitation
Vibration, and can be realized rotary inertia and simple pendulum oscillation frequency by the length of the number of regulation weight mass block and three groups of steel wire ropes
The regulation of rate, thus realize the simulation to torsional flexibility load.
Wherein, six described single pendulum mass materials are steel, to improve the rotary inertia of analog.
Wherein, described weight mass stock material is steel, to improve the rotary inertia of analog.
Wherein, the material of two described vertical strutbeams is steel, and shape and size are all consistent, and has length in centre
Groove, to ensure that three bearing blocks can slide up and down.
Wherein, described horizontal strutbeam is square steel, alleviates the weight of analog while ensureing rigidity.
Wherein, described all bolted on part are both needed to tighten, the damping effect item unnecessary to reduce analog.
Wherein, three described bearing blocks can slide up and down along the elongated slot of two vertical strutbeams, to ensure to choose different length
During degree steel wire rope, analog normally works, thus realizes the regulation to simple pendulum oscillation frequency.
Wherein, the quantity that described weight mass block is arranged on single pendulum mass is adjustable, thus realizes analog
The regulation of each rank simple pendulum oscillation rotary inertia.
The present invention compared with prior art has the advantage that
(1) present invention is under extraneous incentive action, can produce the twisting vibration that three rank are simple, thus can realize reversing soft
Property load simulation while do not introduce the vibration of other degree of freedom.
(2) present invention is by choosing the steel wire rope of different length, can realize the regulation to three rank torsion vibration natural frequencies,
Thus can realize the flexible load of different flexibilities is simulated.
(3) present invention can realize turning three rank twisting vibrations by the weight mass block that regulation is arranged on single pendulum mass
The regulation of dynamic inertia, thus can realize the flexible load of different rotary inertias is simulated.
(4) length of three single pendulum beams of the present invention is longer, and single pendulum mass and weight mass block are steel material, mould
The rotary inertia intending device is relatively big, can realize the simulation to true solar wing.
Accompanying drawing explanation
Fig. 1 is that in the embodiment of the present invention, single pendulum assembles schematic diagram；
Fig. 2 is that embodiment of the present invention middle (center) bearing, bearing block and single pendulum assemble schematic diagram；
Fig. 3 is that embodiment of the present invention bottom bracket assembles schematic diagram with vertical strutbeam；
Fig. 4 is one large inertia torsional flexibility load simulating device schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention further illustrates the present invention.
As it is shown in figure 1, three single pendulum beam two ends of the present invention are attached by bolt and six single pendulum masses；Six lists
Having tapped through hole in the middle of pendulum mass block, its underpart can be connected with weight mass block by bolt, and screwed hole and six is passed through on top
Individual external screw thread suspension ring are tightened；Have six through holes on horizontal strutbeam, connected by bolt and six female thread suspension ring；By outside six
It is attached by three groups of steel wire ropes between screw thread suspension ring with corresponding six female thread suspension ring.This analog is at dynamic excitation
The simple pendulum oscillation of three torsional freedoms can be produced down, and can be by the number of regulation weight mass block and the length of three groups of steel wire ropes
Degree realizes rotary inertia and the regulation of simple pendulum oscillation frequency, thus realizes the simulation to torsional flexibility load.
As in figure 2 it is shown, three bearing blocks of the present invention and three bearing inner races are attached by interference fit；Three single pendulums
Have circular hole in the middle of beam, be connected with three bearing outer rings by interference fit, now only have relative between bearing block with single pendulum beam
The degree of freedom rotated.
As it is shown on figure 3, three bearing blocks of the present invention are attached by bolt and two vertical strutbeams；Two vertical strutbeams
Shape and size are all consistent, and have elongated slot on it, and three bearing blocks can slide up and down along the elongated slot of two vertical strutbeams, to protect
When card chooses different length steel wire rope, analog normally works, thus realizes the regulation to simple pendulum oscillation frequency.
In an embodiment, the material of six single pendulum masses and weight mass block is steel, to improve turning of analog
Dynamic inertia；All bolted on part are both needed to tighten, the damping effect item unnecessary to reduce analog.Choose different length
During steel wire rope, analog normally works, thus realizes the regulation to simple pendulum oscillation frequency；Weight mass block is arranged on single pendulum matter
Quantity on gauge block is adjustable, thus realizes the regulation of rank each to analog simple pendulum oscillation rotary inertia.In sum, the present invention
Rotary inertia can be realized regulate while natural frequency, thus the simulation to the load of large inertia torsional flexibility can be realized.
Claims (8)
1. a large inertia torsional flexibility load simulating device, it is characterised in that this analog include mounting disc (1), two
Vertically strutbeam (2), horizontal strutbeam (3), three single pendulum beams (4), six single pendulum masses (5), weight mass block (6), three axles
Bearing (7), three groups of steel wire ropes (8), six female thread suspension ring (9), six external screw thread suspension ring (10) and three bearings (11)；Three
Group steel wire rope (8) often group is formed by the steel wire rope that two root length degree are identical, external screw thread suspension ring and a female thread suspension ring group
Becoming one group of suspension ring, form six groups of suspension ring altogether, the shape and size of two vertical strutbeams (2) are all consistent, have elongated slot in the middle of it；Two
Root vertical strutbeam (2) lower end is connected with mounting disc (1) by bolt；Two vertical strutbeam (2) upper ends are propped up with level by bolt
Beam (3) connects；Three bearing blocks (7) are secured by bolts in the middle of two vertical strutbeams (2), and can slide up and down along elongated slot；
Three bearing blocks (7) are attached by interference fit with three bearing (11) inner rings；Circle is had in the middle of three single pendulum beams (4)
Hole, is connected with three bearing (11) outer rings by interference fit；Three single pendulum beam (4) two ends are by bolt and six single pendulum quality
Block (5) is attached；Having tapped through hole in the middle of six single pendulum masses (5), its underpart can be by bolt and weight mass block
(6) connecting, top is tightened by screwed hole and six external screw thread suspension ring (10)；Have six through holes on horizontal strutbeam (3), pass through
Bolt and six female thread suspension ring (9) connect；By between six external screw thread suspension ring (10) with corresponding six female thread suspension ring (9)
Being attached by three groups of steel wire ropes (8), this analog can produce the single pendulum of three torsional freedoms under dynamic excitation and shake
Dynamic, and can realize rotary inertia and single pendulum are shaken by the length of the number of regulation weight mass block (6) and three groups of steel wire ropes (8)
The regulation of dynamic frequency, thus realize the simulation to torsional flexibility load.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: six described single pendulums
Mass (5) material is steel, to improve the rotary inertia of analog.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: described weight mass
Block (6) material is steel, to improve the rotary inertia of analog.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: described two are vertical
The material of strutbeam (2) is steel, and shape and size are all consistent, and has elongated slot in centre, permissible to ensure three bearing blocks (7)
Slide up and down.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: described horizontal strutbeam
(3) it is square steel, while ensureing rigidity, alleviates the weight of analog.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: described all bolts
Coupling part is both needed to tighten, the damping effect item unnecessary to reduce analog.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: three described bearings
Seat (7) can slide up and down along the elongated slot of two vertical strutbeams (2), analog during to ensure to choose different length steel wire rope (8)
Normal work, thus realize the regulation to simple pendulum oscillation frequency.
Large inertia torsional flexibility load simulating device the most according to claim 1, it is characterised in that: described weight mass
The quantity that block (6) is arranged on single pendulum mass (5) is adjustable, thus realizes rank each to analog simple pendulum oscillation rotary inertia
Regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630903.7A CN106066244B (en) | 2016-08-04 | 2016-08-04 | A kind of large inertia torsional flexibility load simulating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610630903.7A CN106066244B (en) | 2016-08-04 | 2016-08-04 | A kind of large inertia torsional flexibility load simulating device |
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| Publication Number | Publication Date |
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| CN106066244A true CN106066244A (en) | 2016-11-02 |
| CN106066244B CN106066244B (en) | 2019-02-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289686A (en) * | 2016-11-09 | 2017-01-04 | 北京工业大学 | A kind of measuring method of harmonic gear reducer engagement torsional rigidity |
| CN107063598A (en) * | 2017-04-11 | 2017-08-18 | 北京航空航天大学 | A kind of labyrinth stiffness parameters automatic test platform |
| CN109406183A (en) * | 2018-11-15 | 2019-03-01 | 上海宇航系统工程研究所 | A kind of experimental system of small flexible load stabilization drive control |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289686A (en) * | 2016-11-09 | 2017-01-04 | 北京工业大学 | A kind of measuring method of harmonic gear reducer engagement torsional rigidity |
| CN107063598A (en) * | 2017-04-11 | 2017-08-18 | 北京航空航天大学 | A kind of labyrinth stiffness parameters automatic test platform |
| CN107063598B (en) * | 2017-04-11 | 2019-09-27 | 北京航空航天大学 | A kind of labyrinth stiffness parameters automatic test platform |
| CN109406183A (en) * | 2018-11-15 | 2019-03-01 | 上海宇航系统工程研究所 | A kind of experimental system of small flexible load stabilization drive control |
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| CN106066244B (en) | 2019-02-19 |
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