CN103148984B - Three-wire torsional pendulum method rigid body dynamic parameter test console - Google Patents
Three-wire torsional pendulum method rigid body dynamic parameter test console Download PDFInfo
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- CN103148984B CN103148984B CN201310058544.9A CN201310058544A CN103148984B CN 103148984 B CN103148984 B CN 103148984B CN 201310058544 A CN201310058544 A CN 201310058544A CN 103148984 B CN103148984 B CN 103148984B
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Abstract
The invention provides a three-wire torsional pendulum method rigid body dynamic parameter test console which comprises a test console chassis, a cycloid curve and a tray and is characterized in that a lifting device and a centering device are arranged on the test console chassis, wherein the lifting device comprises three jacks; the jacks are circumferentially and uniformly distributed through taking the center of the chassis as the center of a circle; the centering device is positioned at the center of the chassis and comprises a jack and a centering shaft; and the centering shaft is installed at the upper end of a jack piston in the centering device and ascends or descends along with the piston. The three-wire torsional pendulum method rigid body dynamic parameter test console has the beneficial effects that through the lifting device of the test console, the tray can be conveniently and repeatedly lifted for multiple times, measured objects are convenient to put, load and unload, the tray can be fixedly arranged and put in a non-test state, and the service lives of the cycloid curve and the sensor can be prolonged; and through the centering device, the tray can be enabled to carry out pure torsion vibration around a central lead vertical axis without generating mixed pendulum or conical pendulum movement, so that the measurement precision and the measurement efficiency are improved.
Description
Technical field
The present invention relates to physical parameter test board, particularly a kind of employing three line with jacking gear and centring means rocks the test board that theory of oscillation carries out rigid dynamics parameter testing.
Background technology
Rigid body dynamic mathematic(al) parameter carries out basic, the necessary input parameter needed for modern design and analysis method such as rigid body or dynamics of multibody systems performance Theoretical Design, simulation analysis, virtual test.In industry manufacture, need the determinand carrying out rigid dynamics parameter testing to be normally made up of multiple parts, multiple material, volume is large, and quality is large, the irregular complicated rigid body of body.
When adopting three-dimensional digital model by numerical calculations rigid body dynamic mathematic(al) parameter, because three-dimensional digital model is imperfect or inaccurate, be difficult to the accurate result obtaining kinetic parameter, the three line Inertia Based on Torsion Pendulum Methods therefore usually utilizing three lines to rock theory of oscillation are tested it.Three line Inertia Based on Torsion Pendulum Methods are that current precision is the highest, method conventional in engineering.
When utilizing three line Inertia Based on Torsion Pendulum Methods to carry out the measurement of solid moment of inertia, need frequently testee placed or be unloaded on the pallet by three cycloid suspentions, because pallet is not completely fixed, during mobile testee, pallet easily rocks, and is unfavorable for operation, also has potential safety hazard; In addition, before carrying out three-line pendulum and resetting process and test the measurement of solid moment of inertia, the measuring accuracy caused in order to the mixed pendulum or conical pendu0 that prevent pallet causes decline, need people for carrying out pallet braking, until pallet is completely static, just can carries out associative operation, cause testing efficiency low.
Summary of the invention
The present invention is intended at least to solve one of above-mentioned technological deficiency and proposes three line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test boards.
Described test board comprises test board chassis (2), cycloid (6) and pallet (4), it is characterized in that, described test board chassis (2) is provided with jacking gear (12) and centring means (13);
Described jacking gear (12) comprises three lifting jack, and described three lifting jack are that the center of circle is circularly and evenly distributed with the center of chassis (2);
Described centring means (13) is positioned at the center of chassis (2), comprises a lifting jack and a centration axis, and described centration axis is installed on the jack piston upper end in described centring means, can rise with described piston or decline.
Preferably, described pallet (4) has identical central shaft with chassis (2), and a through hole is established at the center of described pallet (4).
Preferably, the lifting jack in described centring means is manual or electronic hydraulic jack.
Preferably, the lifting jack in described jacking gear is self-locking type synchronous jack.
Preferably, described self-locking type synchronous jack is hydraulic pressure self-locking synchronous jack.
Preferably, described hydraulic pressure self-locking synchronous jack is electric hydaulic self-locking synchronous jack.
In the present invention, jacking gear (12) in test board can being repeatedly elevated of utility tray (4) repeatedly, be convenient to laying and handling of testee, and can fix when non-test state and lay pallet (4), the serviceable life of superior trochoid (6) and sensor (10); Centring means (13) can ensure that pallet (4) only does and rock vibration around the pure of central vertical axis line, and mixed pendulum or taper swinging momvement do not occur, and improves measuring accuracy and measures efficiency.
Accompanying drawing explanation
Fig. 1 is the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the embodiment of the present invention.
Fig. 2 is the support of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the embodiment of the present invention.
Fig. 3 is the runout system of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the embodiment of the present invention.
Fig. 4 is the balanced system of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the embodiment of the present invention.
Fig. 5 is the pallet schematic diagram of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the embodiment of the present invention.
Fig. 6 is pallet lifting and the centring means of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the embodiment of the present invention.
1 upright post reinforcing plate; 2 chassis; 3 pallet reinforcements; 4 pallets; 5 balancing weights; 6 cycloids; 7 draw-beam stiffening plates; 8 columns; 9 draw-beams; 10 sensors; 11 take over a business; 12 jacking gears; 13 centring means; 14 pallet reference identification; 15 pallet manholes.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
The complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods in the present invention mainly comprises four parts: the lifting of support, runout system, active balancing system, pallet and centring means.
the support of the complicated rigid dynamics parameter test board of one: three line Inertia Based on Torsion Pendulum Method
The support of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods comprises chassis 2, column 8, draw-beam 9 and takes over a business 11.
In the present invention, radially, chassis structure is centered by an equilateral triangle, and the same side, equilateral triangle every bar edge extends the prolongation limit of equal length on the support chassis 2 of the complicated rigid dynamics parameter test boards of three line Inertia Based on Torsion Pendulum Methods.
Support take over a business 11 with chassis 2 similar, equally radially, take over a business structure equally centered by an equilateral triangle, the same side, equilateral triangle every bar edge extends the prolongation limit of equal length, in order to reserve installing space to pallet lift device 12, take over a business to extend limit is positioned at Center-triangle opposition side relative to prolongation limit, chassis.Such as, each limit of center chassis triangle extends along the left side of each length of side, then taking over a business each limit of Center-triangle is extend along the right side of each length of side, as shown in Figure 2.
In order to stablizing of reinforced support, center, the chassis 2 equilateral triangle length of side is more than or equal to take over a business the center equilateral triangle length of side of 11, and chassis circumradius is more than or equal to take over a business circumradius.
Chassis 2 is utilize section bar or channel-section steel composition with taking over a business 11, and connected mode can adopt welding, riveted joint, bolt etc.
Support comprises three root posts 8, and column can utilize section bar, steel pipe or weldless steel tube to process through blocking.Every root post 8 two ends respectively connecting base plate Center-triangle one extend top, limit and take over a business Center-triangle one prolongation top, limit, every root post lower end is connected to chassis 2 Center-triangle one and extends top, limit, and upper end is connected to 11 Center-triangle correspondences and extends top, limit; Column two ends can connect upright post reinforcing plate 1 by welding, riveted joint or bolt mode, the stiffening plate at column two ends 1 and chassis 2, take over a business 11 connected mode can be with bolts, transport to facilitate installations, dismounting and loose mail; Chassis circumradius is more than or equal to take over a business circumradius, three root posts are put or all vertically upward all to carriage center line (i.e. chassis or the axis of taking over a business) inclination certain angle, using ensure test board support of the present invention as lifting tested rigid body support time stability, be convenient to lift by crane tested rigid body, also fix without the need to foot bolt.
In order to be adapted to large volume, the measurement of the complicated rigid body of large quality, column 8 length range can be arranged between 1000 ~ 15000 mm; Column to the inclination angle scope of carriage center line between 0 ~ 30 °.
Support comprises crane boom, and crane boom is by draw-beam 9 two ends of the three equal length connected equilateral triangle structure formed between two, and as shown in Figure 1, wherein connected mode can be welding, riveted joint or bolt etc. between two; Three draw-beams lay respectively at three root posts between any two, section bar (as: square steel, joist steel etc.) can be utilized to cut off form, each summit on equilateral triangle crane boom is welded with a draw-beam stiffening plate 7, be bolted with the draw-beam stiffening plate 7 be welded in the middle part of column, to facilitate installation, dismounting and loose mail transport; Crane boom is on chassis 2 and take over a business between 11, and is parallel to take over a business and takes over a business, for hanging hoisting device as chain block or electric block (can adopt bridge-type electric block), tested rigid body hung on pallet 4 or to hang pallet 4.
By means of this support, three-line pendulum runout system can be installed, can the jacking gear 12 of tray 4, can install tested rigid body boom hoisting, this support can stably be positioned over level ground and fix without the need to foot bolt simultaneously.
the runout system of the complicated rigid dynamics parameter test board of two: three line Inertia Based on Torsion Pendulum Methods
As shown in Figure 3, the runout system of the complicated rigid dynamics parameter test board of three line Inertia Based on Torsion Pendulum Methods comprises three cycloids 6, pallet 4, pallet reinforcement 3.
Pallet 4 is disk, can be formed by shape extrusion, such as, with the disk of steel plate by being cut into.
Pallet reinforcement 3 is fixed on below pallet, pallet reinforcement 3 is equilateral triangle structure, or with chassis structure in the present invention or take over a business similar, namely centered by an equilateral triangle, the same side, equilateral triangle every bar edge extends the prolongation limit of equal length.If the latter, three of pallet reinforcement center equilateral triangle extend limit and are positioned at opposition side relative to the prolongation limit of center chassis equilateral triangle, such as, each limit of center chassis triangle extends along the left side of each length of side, then each limit of pallet reinforcement Center-triangle extends along the right side of each length of side.Pallet reinforcement 3 is welded by section bars such as channel-section steels.
Pallet reinforcement 3 and the pallet 4 on it, by welding or rivet or bolt being rigidly connected, to increase the warp stiffness of pallet, improve measuring accuracy.
The radius of the suspension point place circumference of pallet reinforcement 3 is equal to or greater than the exradius of pallet 4, thus extend testing platform can test the feature dimension upper limit of rigid body, need not increase again quality and the moment of inertia thereof of pallet, and then extend testing platform can test the quality level of rigid body simultaneously.
Three cycloid 6 length are equal; What cycloid upper end hung on three-line pendulum test board by force snesor 10 takes over a business on three upper suspension points be circularly and evenly distributed of 11, and cycloid lower end hangs on three lower suspension points be circularly and evenly distributed of pallet 4 or pallet reinforcement 3; The upper suspension point place radius of a circle of three cycloids is equal with lower suspension point place radius of a circle.
When on three cycloids, suspension point place radius of circle is equal with lower suspension point place radius of circle, compared to the situation that upper and lower suspension point radius does not wait, moment of inertia computing formula is simple, and measurement parameter is few, and thus measuring accuracy is high.
In the present invention, some manhole 15(can be dug as shown in Figure 3) on pallet, through hole is being circumferentially uniformly distributed of being the center of circle with tray center point, so that when pallet rigidity meets the demands, alleviate pallet own wt, thus extend testing platform can test the quality level of rigid body.
the active balancing system of the complicated rigid dynamics parameter test board of three: three line Inertia Based on Torsion Pendulum Methods
Active balancing system comprises force snesor 10, balancing weight 5 and pallet reference identification 14.
As shown in Figure 4, the force snesor 10 in active balancing system totally three, lays respectively at the upper end of three cycloids, and cycloid 6 is rigidly secured on three upper suspension points be circularly and evenly distributed of 11 by force snesor 10.The quality of force sensor measuring testee can be utilized.In addition, due to when carrying out the measurement of moment of inertia, demand fulfillment is to the requirement of the heart, and then ensure that pallet barycenter in the process of rocking only moves up and down, force snesor then can while for testee mass measurement, also be used for judging that whether three cycloid pulling force are equal, when three force sensor measuring numerical value are consistent, show that three cycloid pulling force are identical, meet the requirement to the heart, and when three force sensor measuring numerical value are inconsistent, show that three cycloid pulling force are different, pallet discontinuity equalization, do not meet heart requirement, now, the position of testee can be carried out, the position of balancing weight or the adjustment of size.Wherein, three upper suspension points or lower suspension point place diameter of a circle are 200-5000mm.
Active balancing system comprises some balancing weights 5, for tested rigid body on pallet 4 because of biased, when causing tested rigid body not to the heart (three cycloid 6 pulling force are unequal), suitable balancing weight 5 is positioned on pallet 4, adjust its position, until three cycloid 6 pulling force are equal, thus make the barycenter of tested rigid body+balancing weight 5 and tray center pedal line altogether, meet three-line pendulum test board to heart requirement.Wherein, the reference identification point by pallet 4 upper surface is determined by the centroid position of the balancing weight 5 pallet 4 placed.
Described balancing weight 5 is masses of known quality and the arbitrary shape around the moment of inertia of its barycenter vertical axis, such as disc mass, because of its body rule, and its barycenter Ji Qi center.Moment of inertia around its barycenter vertical axis can directly based on theoretical formula method, and accurately, precision is high, thus guarantees the measuring accuracy of three-line pendulum.
A through hole (such as diameter 20 mm) can be offered in disc balancing weight 5 center, to observe and to mark the subpoint of its barycenter on pallet with marking pen; The outside diameter of disc mass and thickness thus quality can set arbitrarily, such as, the 20 kg masses of outside diameter 250 mm, thickness about 60 mm, the 10 kg masses of outside diameter 250 mm, thickness about 30 mm, the 5 kg masses of outside diameter 145 mm, thickness about 40 mm, the 2 kg masses of outside diameter 95 mm, thickness about 40 mm; The shape of mass is not limited only to disc mass, can also be truncated cone-shaped, cube shaped etc.
Pallet reference identification 14 is the station location markers being positioned at tray surface.
As shown in Figure 5 a, pallet reference identification can be that what to be labeled in tray surface take tray center as the polar coordinate system 141 of initial point, take tray center as the annulus that initial point identifies multiple different radii, based on this, the positional information of any point on pallet can be determined, thus determine the placement location of balancing weight 5.
Alternatively, pallet reference identification also can be the center of circle, different radii circumferentially several gauge points 142 equally distributed with tray center, as shown in Figure 5 b, gauge point is the taper hole of diameter 1mm, dark 1mm, gauge point being circumferentially uniformly distributed at different radii, each gauge point number point circumferentially distributed is respectively four, eight, ten second-class.
The quality of the balancing weight 5 that pallet 4 is placed and rock the quality of system (i.e. the tested rigid body+balancing weight 5 of pallet reinforcement 3+ pallet 4+) around the moment of inertia rocking axis by from whole and deduct around the moment of inertia rocking axis.
Because the quality of pallet reinforcement 3+ pallet 4 and can obtaining in advance around the moment of inertia rocking axis, in addition, the mass M a of the balancing weight 5 and moment of inertia Ja around its barycenter vertical axis is known, and balancing weight 5 can be calculated by the distance r of pallet reference sign determined balancing weight barycenter subpoint to tray center around the moment of inertia rocking axis: Ja+Ma*r
2thus only once need test and can obtain tested rigid body around the moment of inertia Jb rocking axis, (the whole system of rocking being about to record deducts pallet reinforcement, pallet, balancing weight around the moment of inertia rocking axis around the moment of inertia rocking axis), without the need to again measuring the moment of inertia of balancing weight after unloading tested rigid body specially, to improve testing efficiency, shorten the test duration, reduce error link, improve measuring accuracy.
the pallet lifting of four: three line Inertia Based on Torsion Pendulum Methods complicated rigid dynamics parameter test board and centring means
As shown in Figure 6, lifting and centring means comprise jacking gear 12, centring means 13.
Jacking gear 12, is made up of three lifting jack, and three lifting jack belong to synchronous jack, are installed on respectively on the chassis 2 of three-line pendulum test board, are circularly and evenly distributed.The type of lifting jack can be selected as required flexibly, as self-locking type synchronous jack, hydraulic pressure self-locking synchronous jack, electric hydaulic self-locking synchronous jack etc.
Centring means 13 comprises a lifting jack, and a centration axis is installed in jack piston upper end, can rise with piston or decline.There is 5x5 chamfering centration axis upper end, and the center pit that before playing pendulum, centration axis rises through pallet 4 with piston makes pallet locate, so that pallet plays pendulum; Fall centration axis to eliminate the friction between itself and pallet 4 center hole wall after playing pendulum, reduce the damping of rocking vibration, improve period measurement precision.Wherein, centring means can be manual or electronic hydraulic jack;
Correspondingly, a through hole is established at the center of the pallet 4 in three-line pendulum test board runout system, to penetrate above-mentioned centration axis, ensures that pallet only does around central vertical axis line and purely rocks vibration, and there will not be mixed pendulum or conical motion, guarantee period measurement precision.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (6)
1. a line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test board, described test board comprises test board chassis (2), cycloid (6) and pallet (4), it is characterized in that, described test board chassis (2) is provided with jacking gear (12) and centring means (13);
Described jacking gear (12) comprises three lifting jack, and described three lifting jack are that the center of circle is circularly and evenly distributed with the center of test board chassis (2);
Described centring means (13) is positioned at the center of test board chassis (2), comprises a lifting jack and a centration axis, and described centration axis is installed on the jack piston upper end in described centring means, can rise with described piston or decline.
2. three line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test boards as claimed in claim 1, it is characterized in that, described pallet (4) has identical central shaft with test board chassis (2), and a through hole is established at the center of described pallet (4).
3. three line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test boards as claimed in claim 1, it is characterized in that, the lifting jack in described centring means is manual or electronic hydraulic jack.
4. three line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test boards as claimed in claim 1, it is characterized in that, the lifting jack in described jacking gear is self-locking type synchronous jack.
5. three line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test boards as claimed in claim 4, it is characterized in that, described self-locking type synchronous jack is hydraulic pressure self-locking synchronous jack.
6. three line Inertia Based on Torsion Pendulum Method rigid dynamics parameter test boards as claimed in claim 5, it is characterized in that, described hydraulic pressure self-locking synchronous jack is electric hydaulic self-locking synchronous jack.
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104296924B (en) * | 2014-11-04 | 2017-10-10 | 广西大学 | Power assembly inertial parameter method of testing |
| CN107478438B (en) * | 2017-07-24 | 2020-04-03 | 北京新能源汽车股份有限公司 | Measuring device and system |
| CN109300371A (en) * | 2018-11-09 | 2019-02-01 | 江南大学 | Disk on a kind of more suspension point three-line pendulums |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303532A1 (en) * | 1987-08-05 | 1989-02-15 | AEROSPATIALE Société Nationale Industrielle | Apparatus for measuring the mass characteristics of a body, and its use in measuring the characteristics of a powerless satellite |
| US5895849A (en) * | 1996-07-19 | 1999-04-20 | G.S. S.R.L. | Balancing method for motor vehicle wheels |
| CN2527992Y (en) * | 2002-01-14 | 2002-12-25 | 中国第一汽车集团公司 | Automobile power assembly center-of-mass and inertia testboard |
| CN200996883Y (en) * | 2006-09-15 | 2007-12-26 | 比亚迪股份有限公司 | Rotary inertia measuring device by triple-wire twisting method |
| CN101158613A (en) * | 2007-11-06 | 2008-04-09 | 四川大学 | Steps convexsurface coaxal three-wire pendulum |
| CN201903430U (en) * | 2010-12-03 | 2011-07-20 | 上海汽车齿轮三厂 | Stand for measuring rotary inertia |
| CN202255765U (en) * | 2011-09-06 | 2012-05-30 | 上海福伊特水电设备有限公司 | Three-fulcrum weighing-type static balancing device for turbine runner |
| CN203116911U (en) * | 2013-02-25 | 2013-08-07 | 北京科技大学 | Rigid-body kinetic parameter testboard by means of three-wire pendulum |
-
2013
- 2013-02-25 CN CN201310058544.9A patent/CN103148984B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0303532A1 (en) * | 1987-08-05 | 1989-02-15 | AEROSPATIALE Société Nationale Industrielle | Apparatus for measuring the mass characteristics of a body, and its use in measuring the characteristics of a powerless satellite |
| US5895849A (en) * | 1996-07-19 | 1999-04-20 | G.S. S.R.L. | Balancing method for motor vehicle wheels |
| CN2527992Y (en) * | 2002-01-14 | 2002-12-25 | 中国第一汽车集团公司 | Automobile power assembly center-of-mass and inertia testboard |
| CN200996883Y (en) * | 2006-09-15 | 2007-12-26 | 比亚迪股份有限公司 | Rotary inertia measuring device by triple-wire twisting method |
| CN101158613A (en) * | 2007-11-06 | 2008-04-09 | 四川大学 | Steps convexsurface coaxal three-wire pendulum |
| CN201903430U (en) * | 2010-12-03 | 2011-07-20 | 上海汽车齿轮三厂 | Stand for measuring rotary inertia |
| CN202255765U (en) * | 2011-09-06 | 2012-05-30 | 上海福伊特水电设备有限公司 | Three-fulcrum weighing-type static balancing device for turbine runner |
| CN203116911U (en) * | 2013-02-25 | 2013-08-07 | 北京科技大学 | Rigid-body kinetic parameter testboard by means of three-wire pendulum |
Non-Patent Citations (2)
| Title |
|---|
| 基于三线摆法惯性参数测量的研究;邹凌云;《中国优秀硕士学位论文全文数据库 基础科学辑》;20120715(第7期);A004-2 * |
| 大型刚体惯性参数识别的三线扭摆系统实验方法改进研究;苏成谦 等;《工程力学》;20070731;第24卷(第7期);第59-65页，第71页 * |
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