CN106017914B - A kind of Helicopter Transmission System Vibration Noise Study test platform - Google Patents
A kind of Helicopter Transmission System Vibration Noise Study test platform Download PDFInfo
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- CN106017914B CN106017914B CN201610307788.XA CN201610307788A CN106017914B CN 106017914 B CN106017914 B CN 106017914B CN 201610307788 A CN201610307788 A CN 201610307788A CN 106017914 B CN106017914 B CN 106017914B
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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
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/028—Acoustic or vibration analysis
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Abstract
A kind of Helicopter Transmission System Vibration Noise Study test platform, it includes transmission system, drive system, safety guard net, main rotor loading system, tail transmission loading system, TT&C system and firm banking；Drive system engages through gear with transmission system and connects and be set on firm banking, which is installed on firm banking through the suspension of three-point support hanger；Main rotor loading system and tail transmission loading system are connect through main rotor shaft and tail transmission shaft with transmission system respectively, and safety guard net is set on firm banking for protecting transmission system, main rotor loading system and tail transmission loading system；It can overcome the defect of existing test platform valuableness using the reasonable setting to the positioning of transmission system trifilar suspension and each system, for the dynamics and vibration noise for analyzing Helicopter Transmission System, it is ensured that transmission system safe and highly efficient operation provides scientific basis；It is widely used in the Noise and Vibration Control and operating status evaluation studies of transmission system.
Description
Technical field
The present invention relates to Helicopter Technology field more particularly to a kind of test of Helicopter Transmission System Vibration Noise Study are flat
Platform.
Background technique
Helicopter Transmission System is one of three big critical components of helicopter, is that turboshaft engine power output is indispensable
Transmission part and unique delivering path；The performance of helicopter is largely determined by the performance of transmission system, vibration
Noise is the major criterion for reflecting Helicopter Transmission System performance superiority and inferiority, while vibration and noise signals have contained helicopter power train
The important running state information of system is analyzed based on vibration noise and the prediction of helicopter malfunction can be achieved, it is ensured that helicopter transmission
The safe operation of system.
Helicopter Transmission System mechanical oscillation and noise are closely connected and the influence that intercouples, and on the one hand may influence system
Performance leads to system parts premature fatigue, or even failure；Another aspect transmission system is also to go straight up to cabin internal vibration noise
Main source directly has an adverse effect to helicopter crew；Helicopter Transmission System vibration noise performance study is to guarantee
System performance improves important in inhibiting in terms of security of system and reliability and occupant comfort, therefore builds a kind of straight
Rise the needs that machine driveline vibrations noise development test platform is scientific development；And the examination of existing research Helicopter Transmission System
Test that platform cost is sufficiently expensive, and the test platform of the typically no this valuableness of colleges and universities and research institute, to hinder to helicopter
The research of development.
Summary of the invention
For above situation, the purpose of the present invention is to provide a kind of test of Helicopter Transmission System Vibration Noise Study is flat
Platform, it is using the conjunction to the systems such as the positioning of transmission system trifilar suspension and double variable-frequency motor driving, main rotor and tail transmission load
Reason setting can overcome existing Helicopter Transmission System test platform and practical structures difference is big and expensive defect, and whole
Body is scientific and reasonable for structure, and simple installation, manufacturing cost is low, can effectively simulate the load of different flight state, research is facilitated to go straight up to
The dynamics and vibration noiseproof feature of machine transmission system provides scientific basis for the improvement of Helicopter Transmission System, to realize
Transmission system safe and highly efficient operation.
To realize above-mentioned task, a kind of Helicopter Transmission System Vibration Noise Study test platform, it include transmission system,
Drive system, safety guard net, main rotor loading system, tail transmission loading system, TT&C system and firm banking；The driving
System engages through gear with transmission system and connects and be set on firm banking, which hangs through three-point support hanger pacifies
Loaded on firm banking；The main rotor loading system and tail transmission loading system are respectively through main rotor shaft and tail transmission shaft and biography
Dynamic system connection, the safety guard net are set on firm banking for protecting transmission system, main rotor loading system and tail
It is driven loading system.
Structure, effect optimization to realize the present invention, further step：The transmission system includes level-one cylinder helical teeth
Wheel, deuterostrophies bevel gear and three-level pinion gear system.
The drive system includes two driving motors and sliding bottom, and two driving motors are connected through sliding bottom
Firm banking.
Two driving motors of drive system frequency converter of connecting respectively is then parallelly connected with same branch.
The three-point support hanger includes support base and hound, which is three and presses 90 ° of radial directions of difference angle
It is distributed in same level.
Two symmetrical support bases of the three-point support hanger carry out vertical and longitudinal register to transmission system respectively, separately
One support base carries out located lateral to transmission system.
The main rotor loading system includes main rotor shaft, second shaft coupling and main rotor loading disc, main rotor load
Disk is connect through second shaft coupling with main rotor shaft.
The tail transmission loading system includes tail transmission shaft, tail loading disc and first shaft coupling, and the tail loading disc is through first
Shaft coupling is connect with tail transmission shaft.
The TT&C system includes detection and control terminal and noise transducer, displacement sensor and acceleration transducer, it is described plus
Velocity sensor is respectively arranged on three support bases of three-point support hanger and on the outer wall of transmission system, displacement sensor
It is set on the input shaft and output shaft of transmission system, noise transducer is arranged in transmission system side.
It is uniformly distributed four acceleration transducers on the outer wall of the transmission system, the input shaft of the transmission system and defeated
Two radial directions are respectively set on shaft into 90 degree of displacement sensor.
The present invention provides a kind of Helicopter Transmission System Vibration Noise Study test platform, it includes transmission system, driving
System, safety guard net, main rotor loading system, tail transmission loading system, TT&C system and firm banking；The drive system
It is engaged with transmission system through gear and connects and be set on firm banking, which is installed on through the suspension of three-point support hanger
On firm banking；The main rotor loading system and tail transmission loading system are respectively through main rotor shaft and tail transmission shaft and power train
System connection, the safety guard net are set on firm banking for protecting transmission system, main rotor loading system and tail transmission
The technical solution of loading system；It is passed using to the positioning of transmission system trifilar suspension and double variable-frequency motor driving, main rotor and tail
The reasonable setting of the systems such as dynamic load can overcome existing Helicopter Transmission System test platform and practical structures difference greatly and price
Expensive defect, for the dynamics and vibration noise for analyzing Helicopter Transmission System, it is ensured that the safe and efficient fortune of transmission system
Row provides scientific basis, and overall structure is scientific and reasonable, and simple installation, manufacturing cost is low, have significant economic benefit and
Social benefit, wide market, convenient for promoting the use of.
The present invention compared with prior art caused by beneficial effect：
I, the present invention is driven loading system using setting main rotor loading system and tail, flies convenient for helicopter simulating difference
The stress condition of posture lower transmission system, makes test data be more in line with truth, to ensure the safe and efficient fortune of transmission system
Row provides scientific basis；
II, the present invention is driven loading system using setting main rotor loading system and tail, convenient for more fully being gone straight up to
Failure evolution mechanism, signal characteristic extracting methods, Incipient Fault Diagnosis method, health maintenance method and the strategy of machine transmission system
Research；
III, the present invention carries out vibration noise to transmission system critical component using setting displacement sensor and noise transducer
Test, provides good experiment condition for the Research on Dynamic Characteristic of Helicopter Transmission System；
IV, the present invention controls the revolving speed and function of driving motor using the high-performance vector frequency converter that two VC5000 are arranged
Rate is conveniently used for the new power shunt type gear transmission system of research gear " point torsion-and vehicle "；
V, the present invention is driven loading system using setting main rotor loading system and tail, facilitates research helicopter power train
The noise and vibration characteristic of system and the transmitting power research of main deceleration two-output impulse generator；
VI, transmission system of the invention preferably uses true retired Helicopter Transmission System, convenient for guaranteeing that structure is consistent
Property and precision, reduce experimental bench cost.
The present invention is widely used in the Noise and Vibration Control and operating status evaluation studies of Helicopter Transmission System.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
Fig. 1 is plan view of the invention.
Fig. 2 is the structural schematic diagram of transmission system in the present invention.
Fig. 3 is integral installation structural schematic diagram of the invention.
Fig. 4 is the distribution schematic diagram of sensor in the present invention.
Fig. 5 is the top view of Fig. 4.
Fig. 6 is the processing schematic of TT&C system of the present invention.
Fig. 7 is the electric operation control circuit figure of drive system of the present invention.
In figure：1- firm banking, 2- three-point support hanger, 3- tail transmission shaft, 4- tail loading disc, 5- first shaft coupling, 6-
Transmission system, 7- main rotor shaft, 8- main rotor loading disc, 9- second shaft coupling, 10- driving motor, 11- input shaft, 12- sliding
Pedestal, 13- safety guard net, 14- acceleration transducer, 15- displacement sensor.
Specific embodiment
Referring to attached drawing, the invention is realized in this way：A kind of Helicopter Transmission System Vibration Noise Study test platform, it
Including transmission system, drive system, safety guard net 13, main rotor loading system, tail transmission loading system, TT&C system and consolidate
Determine pedestal 1；The transmission system connect with drive system and is set on firm banking 1, which hangs through three-point support
The suspension of frame 2 is installed on firm banking 1；The main rotor loading system and tail transmission loading system are respectively through 7 He of main rotor shaft
Tail transmission shaft 3 is connect with transmission system, and the safety guard net 13 is set on firm banking 1 for protecting transmission system, master
Rotor loading system and tail are driven loading system.
As shown in Fig. 2, transmission principle of the invention is：10 output power of driving motor of one side drive system is through level-one
Simultaneously vehicle, deuterostrophies bevel gear Z3 and Z4 commutation and three-level pinion gear system Z5-Z10 pass power to cylindric spiral gear Z1 and Z2
Main rotor shaft 7 is passed, and drives main rotor loading disc 8 to rotate through second shaft coupling 9；The driving motor of another aspect drive system
10 output powers are through level-one cylindric spiral gear Z1 and Z2 and vehicle, deuterostrophies bevel gear Z3 and Z4 commutation and three-level screw conic tooth
Wheel Z11 imparts power to tail transmission shaft 3, and drives tail loading disc 4 to rotate through first shaft coupling 5；The three-level pinion gear
It is the power transmitting point two ways of Z5-Z10：1. gear Z5 output power is directly passed to through differential planet gear Z6 and planet
The ring gear Z10 that frame is mutually fixed；2. gear Z5 output power is passed to through differential planet gear Z6, ring gear Z7 and outer gear ring Z
Fixed gear Z9, finally passes to power the ring gear Z10 being connected with main rotor shaft 7；The transmission system preferably uses very
Real retired Helicopter Transmission System reduces experimental bench cost convenient for guaranteeing structural integrity and precision.
As shown in figure 3, drive system of the invention includes two driving motors 10 and sliding bottom 12, two drivings
Motor 10 is connected on firm banking 1 through 12 slidingtype of sliding bottom, using the slidingtype gap easy to connect to gear engagement
Adjustment ensures that drive train power exports service life that is reliable and stable and improving equipment；The main rotor loading system includes
Main rotor shaft 7, second shaft coupling 9 and main rotor loading disc 8, the main rotor loading disc 8 is through second shaft coupling 9 and main rotor shaft 7
Connection；The tail transmission loading system includes tail transmission shaft 3, tail loading disc 4 and first shaft coupling 5, and the tail loading disc 4 is through first
Shaft coupling 5 is connect with tail transmission shaft 3.
As shown in figure 4, acceleration transducer 14 of the invention is respectively arranged on three support bases of three-point support hanger 2
And on the outer wall of transmission system 6, four acceleration transducers 14 are uniformly distributed on the outer wall of the transmission system 6, this four add
Velocity sensor 14 is perfectly even distributed on the corresponding outer wall of sun gear ring gear of transmission system 6；Displacement sensor 15 is set
It is placed on the input shaft 11 and output shaft of transmission system 6, is respectively set two on the input shaft 11 and output shaft of the transmission system 6
A radial direction is at 90 degree of displacement sensor 15, and the structure setting is convenient to acquire signal in real time, and it is defeated to be conducive to test transmission system 6
Enter the radial direction circle jump degree of axis 11 and output shaft, for the dynamics and vibration noise and transmission system for analyzing Helicopter Transmission System
Safe and highly efficient operation provides scientific basis.
As shown in figure 5, three-point support hanger 2 of the invention includes support base and hound, which is three and presses
90 ° of radial distributions of difference angle are in same level；Two symmetrical support bases of the three-point support hanger 2 are respectively to biography
Dynamic system 6 carries out vertical and longitudinal register, another support base is used to carry out located lateral to transmission system 6；The structure can protect
Barrier transmission system is solid and reliable, and is conducive to ensure the precision of testing research.
As shown in fig. 6, TT&C system of the invention includes sensor and detection and control terminal, the detection and control terminal include filter,
Control system and display；Sensor is used to signal acquisition and exports signal collected after filter filtering give control system
The signal handled is saved and is exported to display and shown by system, control system；By being acquired to experimental data,
Analysis processing, can analyze the practical operation situation for understanding Helicopter Transmission System, convenient for more fully to the vibration of transmission system
The problems such as dynamic, is analyzed, and provides condition for vibration evolution mechanism, vibration control and status monitoring.
As shown in fig. 7, two driving motors 10 of drive system of the present invention are connected respectively, a frequency converter is then parallelly connected with together
The control of one branch, i.e. power switch is switched on or switched off, and contactor KM1 and KM2 control frequency converter 1 respectively and frequency converter 2 is powered
Or disconnect, the frequency converter 1 and frequency converter 2 can also be simultaneously by a Terminal controls, to guarantee that two driving motors 10 use same function
Rate and synchronous working；Circuit control principle is：When powering on switch, presses A.C. contactor KM1 and powers on route 1.,
Then indicator light 1 is bright and frequency converter 1 is powered, and the revolving speed or power of respective drive motor 10 can be controlled by being adjusted frequency converter 1；Or
Person powers on switch, presses A.C. contactor KM2 and powers on route 2., then indicator light 2 is bright and frequency converter 2 is powered, warp
The revolving speed or power of respective drive motor 10 can be controlled by adjusting frequency converter 2；Or power on switch, press ac contactor
3. device KM3 simultaneously powers on route, then indicator light 3 is bright and Frequency Converter Control terminal is powered, through adjusting Frequency Converter Control terminal just
Frequency converter 1 and frequency converter 2 can be controlled simultaneously, to control the revolving speed or power of two driving motors 10 simultaneously；The frequency conversion
Device preferably uses two VC5000 high-performance vector frequency converters for controlling two driving motors 10 respectively.
In conjunction with attached drawing, the embodiment of the present invention one：The dynamic characteristic of Helicopter Transmission System is studied, starts two drives first
Dynamic motor 10, then controls the revolving speed and function of two driving motors 10 respectively using two high-performance vector frequency converters of VC5000
Rate is consistent, and is engaged transmitting power to Helicopter Transmission System 6 through gear, is respectively passed power by Helicopter Transmission System 6
Pass main rotor loading disc 8 and tail loading disc 4；Then start to be loaded, pass through main rotor loading disc 8 and tail loading disc respectively
4 pairs of Helicopter Transmission Systems load；Corresponding data are acquired using sensor during the loading process, and to data filtering
Input control system is handled afterwards, is finally shown by display to data；By changing loading method or changing two driving electricity
The speed of machine 10 can be obtained multiple groups test data, and these data led to by network cable transmission to computer data acquiring software
It crosses and the signal of acquisition is compared and analyzed, so that it may analyze the vibration characteristics and research vibration control plan of Helicopter Transmission System
Slightly.
In conjunction with attached drawing, real column two of the invention：Study the new power shunt gear drive of gear " point torsion-and vehicle "
The vibration characteristics of system starts two driving motors 10 first, then utilizes two high-performance vector frequency converters of VC 5000 point
Not Kong Zhi two driving motors 10 revolving speed and power be consistent, engage transmitting power to Helicopter Transmission System 6 through gear,
Main rotor loading disc 8 and tail loading disc 4 are imparted power to by Helicopter Transmission System 6 respectively；Then start to be loaded, point
Helicopter Transmission System is not loaded by main rotor loading disc 8 and tail loading disc 4；Sensing is utilized during the loading process
Device acquires corresponding data, and handles input control system after data filtering, is finally shown by display to data；It is logical
The different capacity difference or rotational speed difference for changing two driving motors 10 are overregulated, can be obtained multiple groups test data, and by these data
By network cable transmission to computer data acquiring software, by being compared and analyzed to the signal of acquisition, so that it may analyze and research
The vibration characteristics of the new power shunt type gear transmission system of gear " point torsion-and vehicle ".
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied；All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (2)
1. a kind of Helicopter Transmission System Vibration Noise Study test platform, including transmission system, drive system, security protection
Net, main rotor loading system, tail transmission loading system, TT&C system and firm banking；The drive system and transmission system pass through
Gear engagement is connected and is set on firm banking, which is installed on firm banking through the suspension of three-point support hanger；
The main rotor loading system and tail transmission loading system are connect through main rotor shaft and tail transmission shaft with transmission system respectively, described
Safety guard net is set on firm banking for protecting transmission system, main rotor loading system and tail transmission loading system；Its
It is characterized in that two driving motors of the drive system connect with frequency converter respectively and are then parallelly connected with same branch, each frequency conversion
The input terminal road of device is connected to contactor, and two frequency converters also couple the same control terminal；The TT&C system includes passing
Sensor and detection and control terminal, the detection and control terminal further include filter, control system and display；Sensor is by the signal of acquisition through filtering
Wave device is exported to control system, and control system will handle signal and save and export to display.
2. a kind of Helicopter Transmission System Vibration Noise Study test platform according to claim 1, it is characterised in that institute
Stating frequency converter is to select VC5000 high-performance vector frequency converter.
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| CN201610307788.XA CN106017914B (en) | 2016-05-11 | 2016-05-11 | A kind of Helicopter Transmission System Vibration Noise Study test platform |
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| CN201610307788.XA CN106017914B (en) | 2016-05-11 | 2016-05-11 | A kind of Helicopter Transmission System Vibration Noise Study test platform |
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| CN106017914B true CN106017914B (en) | 2018-11-16 |
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| CN110285942B (en) * | 2019-07-01 | 2020-12-15 | 中国人民解放军陆军装甲兵学院 | Method for measuring vibration of planet row |
| CN110901951B (en) * | 2019-11-15 | 2023-01-13 | 哈尔滨飞机工业集团有限责任公司 | Multifunctional tail rotor test system |
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