CN105659835B - Bracing cable formula wind carries test macro - Google Patents
Bracing cable formula wind carries test macroInfo
- Publication number
- CN105659835B CN105659835B CN200810078458.3A CN200810078458A CN105659835B CN 105659835 B CN105659835 B CN 105659835B CN 200810078458 A CN200810078458 A CN 200810078458A CN 105659835 B CN105659835 B CN 105659835B
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- Prior art keywords
- wind
- air
- bracing cable
- tunnel
- deep bead
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- 239000011324 bead Substances 0.000 claims abstract description 33
- 238000004088 simulation Methods 0.000 claims description 20
- 230000003584 silencer Effects 0.000 claims description 12
- 230000004048 modification Effects 0.000 claims description 6
- 238000006011 modification reaction Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 12
- 230000000087 stabilizing Effects 0.000 abstract description 6
- 239000000428 dust Substances 0.000 abstract description 4
- 238000011068 load Methods 0.000 abstract description 4
- 230000035485 pulse pressure Effects 0.000 abstract description 2
- 230000000875 corresponding Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001846 repelling Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 210000001367 Arteries Anatomy 0.000 description 1
- 210000003462 Veins Anatomy 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Abstract
The invention belongs to transmitting device, be specifically related to a kind of bracing cable formula wind and carry test macro. Advantage of the present invention is, it is even that the deep bead in air supply system, grid screen can ensure that surrounding air flow to analog transmissions car forward slip value, and air cleaner and fine filter combination wherein control the randomness suspended particulates such as airborne dust; In advance dry air again humidifying air can experimentally require control air humidity conditions, can contrast and determine that humidity is carried the influence degree of characteristic to wind; Voltage stabilizing and fall dry processing and then suppress dynamic pressure and even random pulse pressure further, guarantees that blast is by the relatively stable output of test requirements document, and improves wind tunnel test working environment; Bracing cable balance tests out respectively the tensile force on each bracing cable direction, and wind that car launcher car load bear can be analyzed carries characteristic and wind disturbance torque.<pb pnum="1" />
Description
Technical field
The invention belongs to transmitting device, be specifically related to a kind of bracing cable formula wind and carry test macro.
Background technology
In Missile Launching Process, launching site ambient windstream produces wind to car launcher and carries, and causes car launcher knotStructure produces distortion or vibration, affects lift-off technology performance. Under extreme environment wind friction velocity, wind carries and determinesCar launcher stability, even determines the safety and reliability of MISSILE LAUNCHING. Research car launcher is at environmentThe wind of wind friction velocity carries characteristic, contributes to optimize the reasonable aerodynamic arrangement of the each equipment of car launcher, adjusts transmittingThe car weight heart, increases car launcher stability, improves car launcher to the adaptability of ambient wind velocity, guarantees limit cycleTransmitting safety and reliability under the wind friction velocity of border.
The simulation of MISSILE LAUNCHING ambient wind velocity, both at home and abroad conventionally by custom-designed aviation low-speed wind tunnel, thisKind of wind-tunnel and supporting test macro thereof (as test balance, sensor) owing to aiming at aircraft manufacturing, spaceAnd function ratio is comparatively applicable to the research of aircraft aerodynamic characteristic. For missile weapon system, be relatively suitable for leadingPlay the less flight operating mode of free flight or restrained condition, and need to wind tunnel test balance and sensorDo corresponding improvement. Current aerospace low-speed wind tunnel design and manufacture cost is very high, and single test expense is also higher,Experimental subjects sharp processing (comprising size, suface processing quality) is limited also a lot, wind-tunnel own because ofEquipment and test instrumentation are safeguarded to be needed, and air epidemic disaster can not be adjusted in a wide range, gives tested objectWind carries characteristic research and also brings corresponding restriction. In conjunction with prior art condition and infrastructure, develop lowCost, high-adaptability ambient wind velocity simulation system will contribute to these baroque spies of picture missile truckThe equipment of kind is carried out wind and is carried characteristic research, promotes further developing of Wind Tunnel Technique.
The different radiation pattern of guided missile requires to differ greatly to car launcher, correspondingly, the function of car launcher andAppearance design changes also comparatively greatly, and the stiffness characteristics of car launcher and center of gravity difference are also comparatively large, give machinery or strainBalance is installed and is brought a lot of new problems, profile and the even impact in some cases of cloth position of balance bracing frameTest result, for example: canister launch car or cartridge type car launcher emission state center of gravity are higher and extremely rearward,And be not often arranged in car launcher structural solid, balance and bracing frame own dimensions and installation siteTest result will be affected unavoidably, bring new difficulty to verifying work.
Consider the features such as car launcher construction profile is various, center of gravity differs greatly, survey by new balance systemIt is a worth exploration approach that examination car launcher wind carries characteristic. Current, both at home and abroad for reducing traditional mechanical type or answeringVariant balance and support system thereof are carried the impact of characteristic test to wind, have carried out bracing cable formula balance exploration and have groundStudy carefully work, this balance is less to wind field interference due to support and test macro, can commensurate structure complexityResearch object. Can absorb on current bracing cable formula balance R&D experience basis, exploitation is applicable to car launcherThe novel bracing cable formula wind that wind carries characteristic research carries test macro.
Summary of the invention
The object of this invention is to provide a kind of supply air system and wind-tunnel that adapts to different air quantity, can simulate and send outPenetrate the different wind speed of environment, and guarantee windward on cross section that wind speed evenly and realize testing and launching car all directions and holdThe bracing cable formula wind that the wind such as the wind being subject to carries, wind disturbance torque carry characteristic carries test macro.
The present invention is achieved in that bracing cable formula wind carries test macro, and it comprises air supply system and simulation windHole, air supply system comprises air compressor, and air compressor is connected with filter by stop valve, filtersDevice is connected with drier, and drier is connected with fine filter, and fine filter is adjusted by valve and air themperatureThe connection of joint tower, air temperature modification tower is connected with high pressure tank by valve, high pressure tank and voltage stabilizingValve connection, pressure maintaining valve is connected with mass flow meters, and mass flow meters is connected with the adjustable throttling with silencer,Pipeline between mass flow meters and the adjustable throttling with silencer is provided with Pressure gauge, band silencerAdjustable throttling be connected with humidifier by choke valve, at the adjustable throttling with silencer and choke valveBetween pipeline on pressure indicator is installed, the wind-tunnel air intake of the humidifier of air supply system and simulation wind-tunnelMouthful connection, is characterized in that: in simulation wind-tunnel, one end of wind-tunnel air inlet is provided with first successively and keeps out the windPlate, second deep bead, San road deep bead, San road deep bead be provided with successively outward first grid screen,Second grid screen, San road grid screen, wind-tunnel inwall is provided with T-slot guide rail, leads at T-slotRail is provided with the bracing cable tensioning apparatus matching with it, and it comprises tensioning apparatus holder, and tensioning apparatus is solidReservation is fixed on T-slot guide rail, and the lower end of tensioning apparatus holder has rectangular through-holes, tensioning apparatusThe end face of holder has been threaded connection screw rod, and the outer end of screw rod is provided with turning handle, and screw rod hasOne through hole, is installed with bracing cable in through hole, the end of bracing cable is provided with detent balls, and detent balls may be stuck in turning handleEnd face, the end face of rectangular through-holes is provided with hinged, reel is arranged on hinged upper by pivot pin, bracing cableAround on reel.
Between wind-tunnel air inlet and first deep bead, on wind-tunnel wall, be provided with thermometer, keep out the wind at firstWind-tunnel wall between plate and second deep bead is provided with hygrometer, the wind-tunnel in tri-grid screen outside, roadWall is provided with anemobiagraph and pressure sensor.
Advantage of the present invention is, the deep bead in air supply system, grid screen can ensure that surrounding air flow toAnalog transmissions car forward slip value is even, and air cleaner and fine filter combination wherein control airborneThe randomness suspended particulates such as dust; In advance dry air again humidifying air can experimentally require to control emptyGas damp condition, can contrast and determine that humidity is carried the influence degree of characteristic to wind; Voltage stabilizing and fall dry processing thenSuppress dynamic pressure and even random pulse pressure further, guarantee that blast is by the relatively stable output of test requirements document, andImprove wind tunnel test working environment; Bracing cable balance tests out respectively the tensile force on each bracing cable direction,And wind that car launcher car load bear can be analyzed carry characteristic and wind disturbance torque.
Accompanying drawing explanation
Fig. 1 is that bracing cable formula wind provided by the present invention carries test macro schematic diagram;
Fig. 2 is parallel "T"-shaped groove slide rail direction analog transmissions car hanging front view;
Fig. 3 is vertical "T"-shaped groove slide rail direction analog transmissions car hanging left view;
Fig. 4 is deep bead air vent schematic layout pattern;
Fig. 5 is grid netting twine schematic layout pattern;
Fig. 6 is bracing cable balance schematic diagram.
In figure, 1 simulation wind-tunnel, 2 bracing cable formula balances, 3 analog transmissions cars, 4 anemobiagraphs, 5 pressure passSensor, 6 San road grid screens, 7 second grid screens, 8 first grid screens, 9 San road deep beads,10 second deep beads, 11 hygrometers, 12 first deep beads, 13 thermometers, 14 wind-tunnel air inlets,15 humidifiers, 16 choke valves, 17 pressure indicators, 18 adjustable throttlings with silencer, 19 airCompressor, 20 stop valves, 21 filters, 22 driers, 23 fine filters, 24 air temperature modificationTower, 25 high pressure reservoir tanks, 26 pressure maintaining valves, 27 mass flow meters, 28 Pressure gauges, 56 bracing cable tensioning dressesPut 57T shape groove guide rail, 58 dynamometers, 59 bracing cables, 60 foundation bolts, 61 wind-tunnel walls, 62 tensioningsDevice holder, 63 holding screws, 64 is hinged, 65 reels, 66 pivot pins, and 67 rectangular through-holes, 68 is tightDetermine screw, 69 screw rods, 70 bracing cable detent balls, 71 turning handles.
Detailed description of the invention
Describe the present invention below in conjunction with drawings and Examples:
As shown in Figure 1, bracing cable formula wind carries test macro, and it comprises air supply system, air supply system and simulationThe wind-tunnel air inlet 14 of wind-tunnel 1 connects, in one end of simulation wind-tunnel 1 interior wind-tunnel air inlet 14 with necessarilySpacing be installed with first deep bead 12, second deep bead 10, San road deep bead 9 successively,As shown in Figure 4, San road deep bead 9 is outer to be installed with certain spacing the structure of deep bead successivelyFirst grid screen 8, second grid screen 7, San road grid screen 6, the structure of grid screen is as Fig. 5 instituteShow, tri-road grid screen 6 outside is provided with bracing cable formula balance 2, and bracing cable formula balance 2 is hung with simulationCar launcher 3 is provided with thermometer 13 on wind-tunnel wall between hole air inlet 14 and first deep bead 12,Wind-tunnel wall between first deep bead 12 and second deep bead 10 is provided with hygrometer 11,The wind-tunnel wall in three road grid screen 6 outsides is provided with anemobiagraph 4 and pressure sensor 5; Air supply system comprisesAir compressor 19, air compressor 19 is connected with filter 21 by stop valve 20, filter 21Be connected with drier 22, drier 22 is connected with fine filter 23, fine filter 23 by valve withAir temperature modification tower 24 connects, and air temperature modification tower 24 is connected with high pressure tank 25 by valve,High pressure tank 25 is connected with pressure maintaining valve 26, and pressure maintaining valve 26 is connected with mass flow meters 27, mass flow meters27 are connected with the adjustable throttling with silencer 18, in mass flow meters 27 and the adjustable throttle with silencerPipeline between valve 18 is provided with Pressure gauge 28, the adjustable throttling 18 with silencer passes through choke valve16 are connected with humidifier 15, at the pipeline between the adjustable throttling with silencer 18 and choke valve 16On pressure indicator 17 is installed, humidifier 15 with simulation wind-tunnel wind-tunnel air inlet 14 be connected.
As shown in Figures 2 and 3, simulation wind-tunnel 1 is rectangular-shaped structure, the internal face of simulation wind-tunnel 1Upper uniform 4 T-slot guide rails 57, the two ends of each T-slot guide rail 57 are provided with bracing cable tensioning dressPut 56,8 bracing cable tensioning apparatus 56 form bracing cable balance 2.
As shown in Figure 6, bracing cable tensioning apparatus 56 is included in T-slot guide rail 57 and is provided with it and matchesTensioning apparatus holder 62, tensioning apparatus holder 62 is fixed on T-slot by holding screw 63 and leadsOn rail 57, the lower end of tensioning apparatus holder 62 has rectangular through-holes 67, tensioning apparatus holder 62End face be threaded connection screw rod 69, the outer end of screw rod 69 is provided with turning handle 70, screw rod 69Have a through hole, be installed with bracing cable 59 in through hole, the end of bracing cable 59 is provided with detent balls 70, detent balls 70May be stuck in the end face of turning handle 70, the inner end of the screw rod 69 of tensioning apparatus holder 62 also arrangesHave holding screw 68, holding screw 68 can carry out fastening to bracing cable 59, at tensioning apparatus holder 62The end face of rectangular through-holes 67 on fix hinged 64, reel 65 is arranged on hinged 64 by pivot pin 66,Bracing cable 59 is around on reel 65.
Parallel and vertical "T"-shaped groove slide rail direction analog transmissions car hanging view as shown in Figures 2 and 3,Bracing cable 59 is connected with the foundation bolt on analog transmissions car 3 60 respectively, and bracing cable 59 is equipped with dynamometer58。
It can control air flow rate to the present invention includes a set of air supply system, then uses by wind repelling system and will refer toThe wind of constant flow mixes. Air supply system is by air compressor, series and parallel group high pressure tank, jointStream valve, manometer and blow valve composition, it is high that surrounding air is compressed to series and parallel group by air compressorPressure air accumulator stores, and high pressure tank quantity and series-parallel system are according to wind-tunnel effective cross-sectional area and wind speedConfiguration, after this, pressure-air, after voltage-stablizer voltage stabilizing, is sent to wind through choke valve step-down and after controlling flowAir inlet on the wall of hole. After air inlet, air is through three groups of deep beads, three groups of grid screens compositionEven wind is mixed into after wind repelling system. Between three groups of deep beads, install by corresponding spacing, three groups of grid screens itBetween also by corresponding spacing install. Air vent aperture, ventilation on first deep bead Zhi tri-road deep beadHole array in length and breadth spacing is pressed tapered fashion perforate, Boulez, makes available ventilation area, air vent quantity graduallyIncrease. First group to the 3rd group grid screen gridline in length and breadth spacing also pressed tapered fashion networking.
The pneumatic vigour part designing techniques such as compressed air, high-pressure gas, voltage stabilizing, step-down and throttling at present thanMore ripe, supply air system design and manufaction can effectively reduce costs; Design according to principle of hydrodynamicsDeep bead, grid screen can to ensure that surrounding air flow to analog transmissions car forward slip value even; Actual environmentWind speed, blast, temperature, humidity equal parameter are indicated respectively by the series sensor of arranging on wind-tunnel wall.
Point seven step control air qualities in air supply system. The first step, compresses through compressor at surrounding airAfter, utilize air cleaner tentatively to filter the solid suspended particles such as floating dust; Second step, utilizes one group to be driedDevice dry air; 3rd step, utilizes the further filtered air of air fine filter; 4th step, utilizes emptyTemperature degree adjusting tower regulates air themperature, and water service pipe in air temperature modification tower, utilizes cold water cooling or heatAir after water heating and filtering; 5th step, carries out voltage stabilizing processing by the air being discharged by high pressure tank,Effectively suppress air pressure pulsation, carry air by design wind pressure condition; 6th step, utilizes silencer to fallThe low airborne noise through choke valve outflow; 7th step, utilizes humidifier humidifies air, by wetting in wind-tunnelDegree meter feedback air relative humidity, adjusts humidifier water vapour atomization quantity as required, thus reaches controlThe object of air humidity, viscosity.
Air cleaner and fine filter combination control the randomness suspended particulates such as airborne dust; FirstPhase dry air again humidifying air can experimentally require to control air humidity conditions, can contrast and determineHumidity is carried the influence degree of characteristic to wind; Voltage stabilizing and fall dry processing and then suppress dynamic pressure and even random arteries and veins furtherDynamic pressure, guarantees that blast is by the relatively stable output of test requirements document, and improves wind tunnel test working environment.
Bracing cable balance is by four "T"-shaped holddown grooves and eight groups of tensioning apparatus, dynamometer, bracing cable, lower margin spiral shellBolt composition. Four "T"-shaped grooves are arranged on the launch environment wind speed simulation system wind-tunnel wall left and right sides (by windDirection of advance, horizontal both sides wind-tunnel wall is the left and right sides) on wall, install at each "T"-shaped groove two endsTight device, draws eight bracing cables separately by tensioning apparatus, the fixing dynamometer in bracing cable middle part, other end land usedFoot bolt is fixed, and foundation bolt is embedded in car launcher casing. In process of the test, eight bracing cable rigidity are pressedTest request processing, car launcher vehicle body and ambient wind velocity angle utilize bracing cable to stretch and control.
Article eight, bracing cable dynamometer tests out respectively the tensile force on each bracing cable direction, large according to eight componentLittle, Directional Decomposition, syntheticly wind that car launcher car load bear can be analyzed carry characteristic and wind disturbance torque.
Bracing cable tensioning apparatus utilizes pivot pin to coordinate with reel and adjusts bracing cable stroke, utilizes holding screw to openLine is fastened on holder in screw rod in through wires hole, utilizes screw rod rotation to advance, retreat and drive screw rod to tightenDetermine screw, adjust bracing cable rate of tension.
According to the analog transmissions car size that will apply, design foundation bolt fixed position and bracing cable angle,Be correspondingly that available holding screw is by "T"-shaped tensioning apparatus holder groove. On tensioning apparatus holderHinged, pivot pin, reel are installed, after bracing cable licks reel, with holding screw by bracing cable tightening on screw rod,Holding screw and bracing cable detent balls play the de-effect of dual non-slip; Utilize screw rod upper handle rotating screw bolt, namelyAccording to each bracing cable pretightning force, bracing cable stroke and rate of tension can be adjusted.
The implementation step that assembling ambient wind velocity simulation and car launcher wind carry characteristic combined test device is divided following severalIndividual step completes:
First assembling preliminary joint-trial ambient wind velocity simulation test device
With reference to figure 1, install successively and use pipeline, valve be connected air compressor 19, filter 21,Drier 22, fine filter 23, air temperature modification tower 24, high pressure reservoir tank 25, pressure maintaining valve 26,Mass flow meters 27, Pressure gauge 28, the adjustable throttling 18 with silencer, pressure indicator 17, throttlingValve 16, humidifier 15, form supporting air supply system. By and the pipeline of air supply system is connect and launches ringBorder wind speed simulation wind tunnel air inlet 14 is connected. Wind-tunnel air inlet 14 aperture and quantity are according to limit windIntake design, processing under speed condition, the parallel series pipe form of air supply system, drier 22, airTemperature adjusting tower 24, high pressure reservoir tank 25, pressure maintaining valve 26, the adjustable throttling 18 with silencer, jointUnder stream valve 16, humidifier 15 and Limit of Wind Speed condition, intake matches. Launching environment simulation wind-tunnel is non-Under Limit of Wind Speed condition of work, the fresh air inlet valve of some suitably can be closed, and adjust choke valve streamAmount.
With reference to figure 5, Fig. 6 in length and breadth spacing process corresponding deep bead and grid screen, then according to Fig. 1, rootAccording to grid screen and deep bead air holes in length and breadth spacing by close to dredging order Jiang tri-road grid screen 6, the second gateGraticule mesh 7, first grid screen 8, San road deep bead 9, second deep bead 10, first deep bead12 are arranged on by specifying Spacing on launch environment wind speed simulation wind-tunnel wall, and at launch environment wind speed simulation windHole wall installs the sensors such as anemobiagraph 4, pressure sensor 5, hygrometer 11 and thermometer 13.
Start air compressor start preliminary air feed, after signal piping air-tightness, check above-mentioned each instrument,Working sensor state, and debug out choke valve open degree under limit stability wind friction velocity, each instrumentationState. With reference to the method, debug choke valve open degree and each instrument under other stable wind friction velocity furtherDuty.
Secondly bracing cable formula car launcher wind is installed and carried test macro, hanging tensioning analog transmissions car
With reference to figure 3, Fig. 4, bracing cable tensioning apparatus 56 is anchored on wind-tunnel wall to 61 with holding screw 63T-slot guide rail 57 specified location. By eight bracing cable 59 one end with being fixed on bracing cable tensioning apparatus 56,One end is fixed on analog transmissions car 3 foundation bolt 60, after middle installation dynamometer 58, utilizes bracing cableBracing cable by after designing subtended angle, stroke tensioning, is completed the lifting of analog transmissions car and tensioning by tensioning apparatus 56Work.
Bracing cable tensioning apparatus 56 is assembled and bracing cable in bracing cable tensioning apparatus tightening order is: first by reel 65Through being fixed on hinged 64 pivot pin 66, be fixed on hinged 64 on tensioning apparatus holder 62,Then by screw rod 69 precession tensioning apparatus holder 62, holding screw 68 is spun on screw rod 69; ?After by bracing cable gap and screw rod 69 through rectangular through-holes 67, reel 65 and tensioning apparatus holder 62Fixed with the preliminary riveting of bracing cable detent balls 70 after upper through wires hole, fixed with the further riveting of holding screw 68, loading screw69 turning handle 71 namely complete that bracing cable tensioning apparatus 56 is assembled and bracing cable in bracing cable tensioning apparatus tightening workDo.
After this, should switch on power and review and validate institute's car launcher wind to carry tester duty good.
Claims (2)
1. bracing cable formula wind carries test macro, and it comprises air supply system and simulation wind-tunnel (1), air supply system bagDraw together air compressor (19), air compressor (19) is connected with filter (21) by stop valve (20)Connect, filter (21) is connected with drier (22), and drier (22) connects with fine filter (23)Connect, fine filter (23) is connected with air temperature modification tower (24) by valve, air temperature modificationTower (24) is connected with high pressure tank (25) by valve, high pressure tank (25) and pressure maintaining valve (26)Connection, pressure maintaining valve (26) is connected with mass flow meters (27), mass flow meters (27) and with silencerAdjustable throttling (18) connection, at mass flow meters (27) and the adjustable throttling (18) with silencerBetween pipeline on Pressure gauge (28) is installed, the adjustable throttling (18) with silencer passes through choke valve(16) be connected with humidifier (15), at the adjustable throttling with silencer (18) and choke valve (16)Between pipeline on pressure indicator (17) is installed, the humidifier (15) of air supply system and simulation wind-tunnel(1) wind-tunnel air inlet (14) connection, is characterized in that: wind-tunnel air intake in simulation wind-tunnel (1)One end of mouth (14) is provided with first deep bead (12), second deep bead (10), San road successivelyDeep bead (9), outer first grid screen (8), the second grid of being provided with successively of San road deep bead (9)Net (7), San road grid screen (6), wind-tunnel inwall (61) is provided with T-slot guide rail (57),T-slot guide rail (57) is provided with the bracing cable tensioning apparatus (56) matching with it, and it comprises tensioning apparatusHolder (62), it is upper that tensioning apparatus holder (62) is fixed on T-slot guide rail (57), tensioning apparatusThe lower end of holder (62) has rectangular through-holes (67), and the end face of tensioning apparatus holder (62) passes throughScrew rod (69) has been threaded, and the outer end of screw rod (69) is provided with turning handle (71), screw rod (69)Have a through hole, be installed with bracing cable (59) in through hole, the end of bracing cable (59) is provided with detent balls (70),Detent balls (70) may be stuck in the end face of turning handle (71), and the end face in rectangular through-holes (67) is establishedHave hinged (64), it is upper that reel (65) is arranged on hinged (64) by pivot pin (66), bracing cable (59)Around on reel (65).
2. bracing cable formula wind as claimed in claim 1 carries test macro, it is characterized in that: at wind-tunnel air intakeBetween mouth (14) and first deep bead (12), wind-tunnel wall is provided with thermometer (13), keeps off at firstWind-tunnel wall between aerofoil (12) and second deep bead (10) is provided with hygrometer (11), the 3rdThe wind-tunnel wall in road grid screen (6) outside is provided with anemobiagraph (4) and pressure sensor (5).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105659835B true CN105659835B (en) | 2012-10-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497254A (en) * | 2017-08-29 | 2017-12-22 | 瑞立集团瑞安汽车零部件有限公司 | Double-tower dryer |
| CN116046335A (en) * | 2023-04-03 | 2023-05-02 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type strain balance working in normal-temperature to low-temperature wide temperature range and application method |
| CN118347685B (en) * | 2024-06-17 | 2024-10-15 | 溧阳气动创新研究院有限公司 | Automobile environment wind tunnel test device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107497254A (en) * | 2017-08-29 | 2017-12-22 | 瑞立集团瑞安汽车零部件有限公司 | Double-tower dryer |
| CN116046335A (en) * | 2023-04-03 | 2023-05-02 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type strain balance working in normal-temperature to low-temperature wide temperature range and application method |
| CN116046335B (en) * | 2023-04-03 | 2023-06-06 | 中国空气动力研究与发展中心高速空气动力研究所 | Rod type strain balance working in normal-temperature to low-temperature wide temperature range and application method |
| CN118347685B (en) * | 2024-06-17 | 2024-10-15 | 溧阳气动创新研究院有限公司 | Automobile environment wind tunnel test device |
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