CN109241616A - Centrifugal governor device rotary speed compensation system simulating analysis - Google Patents
Centrifugal governor device rotary speed compensation system simulating analysis Download PDFInfo
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- CN109241616A CN109241616A CN201811018578.4A CN201811018578A CN109241616A CN 109241616 A CN109241616 A CN 109241616A CN 201811018578 A CN201811018578 A CN 201811018578A CN 109241616 A CN109241616 A CN 109241616A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/06—Power analysis or power optimisation
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Abstract
The present invention relates to centrifugal governor device rotary speed compensation system simulating analysis, comprising: and one, each part model is established under CATIA software environment, it is converted into neutral file format after assembly, is imported into ADAMS software；Two, Boolean calculation merging is carried out to the part of not relative motion during actual motion, simplifies simulation model, adds the material properties of each part；Three, each part quality is configured according to real material, passes through the freedom degree of addition constraint qualification component movement, the Machine Movement Process of addition movement driving simulation centrifugal governor device；Four, simulation parameter is set, the Postprocess module in ADAMS software is entered after simulation calculation, obtains the characteristic curve of revolving speed and spool displacement under analogue simulation；Five, revolving speed under theoretical calculation is obtained to make comparisons and analyze with the characteristic curve of spool displacement with the characteristic curve under analogue simulation.The present invention is advantageously implemented the guidance repaired to constant speed drive device by modeling to centrifugal governor device simulation.
Description
Technical field
The present invention relates to centrifugal governor emulation mode technical field, specifically centrifugal governor device rotary speed is compensated
System emulation analysis method.
Background technique
Constant speed drive device is an important component in aircraft power system, the variation revolving speed for exporting engine
It is changed into constant revolving speed.After constant speed drive device works long hours, part movement generates phenomena such as wearing, is tired, deforming, and makes
It at speed considerations system performance deviation, needs to correct the error of parts depreciation aging generation in repair procedures, returns system just
Normal tooling state, still, since structure is complicated for constant speed drive device, the factor for influencing system worked well is more, it is difficult to realization pair
The malfunction elimination of constant speed drive device, trouble-shooting reason, to be unfavorable for repairing.
And main building block of the centrifugal governor device as constant speed drive device, constant speed drive device can be experienced
Reality output revolving speed simultaneously provides the control pressure signal of correction of deviation to hydraulic press, and hydraulic press receives product input speed and comes from
The control pressure signal of adjuster provides compensating rotational speed to differential train.
Therefore, the structure and movement of centrifugal governor device are analyzed, there is important finger to constant speed drive device
Lead meaning.
Summary of the invention
In order to avoid with solve above-mentioned technical problem, the invention proposes the emulation of centrifugal governor device rotary speed compensation system
Analysis method.
The technical problems to be solved by the invention are realized using following technical scheme:
Centrifugal governor device rotary speed compensation system simulating analysis, comprising the following steps:
Step 1: establishing each part model under CATIA software environment, and neutral file format is converted into after assembly, imports
Into ADAMS software；
Step 2: Boolean calculation merging is carried out to the part of not relative motion during actual motion, simplifies emulation
Model, and add the material properties of each part；
Step 3: configuring each part quality according to real material, by the freedom degree of addition constraint qualification component movement, so
The Machine Movement Process of addition movement driving simulation centrifugal governor device afterwards；
Step 4: simulation parameter centrifugal-block rotational time and emulation step number are set, entered in ADAMS software after simulation calculation
Postprocess module, obtain the characteristic curve of revolving speed and spool displacement under analogue simulation.
Step 5: according to the technical standard and design drawing of centrifugal governor device, revolving speed and valve under theoretical calculation are obtained
The characteristic curve of core displacement is made comparisons and is analyzed with the characteristic curve under analogue simulation.
Further, each part model includes turbine, adjusting block, adjusting rod, governor spring, centrifugal-block, centrifugal-block
Seat, rotation valve pocket, valve pocket, spool.
Further, the constraint include the fixed joint of spool and bearing, the sliding pair of rotation valve pocket and spool, valve pocket with
Rotate the revolute pair of valve pocket, the revolute pair of bearing and centrifugation block, centrifugal-block and the fixed joint for being centrifuged block.
Further, also need to add virtual secondary to restore true motion process, the displacement to spool in the step 3
Reflect mainly by the deflection of spring, therefore two Marker points are respectively created in the central point in two faces of fixed spring,
Spring pair is added between two Marker points.
Further, the movement drives the jump function STEP provided using ADAMS to complete.
Further, the simulation parameter centrifugal-block rotational time is set as 10s, emulation step number is set as 100.
The beneficial effects of the present invention are: the present invention by centrifugal governor device simulation model, obtain different rotating speeds with
The variation relation of spool displacement, and the reliability of simulation results can be effectively verified, it is advantageously implemented and constant speed driven gas heat pump is filled
The guidance for setting repairing facilitates malfunction elimination and trouble-shooting point in constant speed drive device, increases economic efficiency.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structure composition block diagram of the invention；
Fig. 2 is the structure composition schematic diagram of centrifugal governor device in the present invention；
Fig. 3 is the displacement of analogue simulation bottom spool and rotation speed relation curve graph in the present invention；
Fig. 4 is the comparison diagram of revolving speed and spool displacement simulation results and theoretical calculation in the present invention.
Specific embodiment
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below it is right
The present invention is further described.
As shown in Figures 1 to 4, centrifugal governor device rotary speed compensation system simulating analysis, comprising the following steps:
Step 1: the three-dimensional of each part in centrifugal governor device is established according to two-dimentional drawing using CATIA software first
Model, the model of main component include turbine 1, adjusting block 2, adjusting rod 3, governor spring 8, centrifugal-block 4, centrifugation block 5, rotation
Rotary valve housing 6, spool 9, valve pocket 7, after creating correct threedimensional model, after the neutral file of " x_t " format need to be saved as, then
It imports in ADAMS software；
Step 2: it completes to rename each part, to not having in no actual motion after ADAMS software imports
The part (such as bearing inner race/bearing outer ring and ball) of relative motion carries out boolean's merging treatment, is simplified model, completes
After merging, the name of component is needed to modify, and added material attribute, changes component color；
Step 3: it after model simplification, needs in ADAMS software, each part quality is configured according to real material, is such as centrifuged
4 mass 10g of block, centrifugation 5 mass of block are 6g, and the freedom degree of component movement is limited by addition constraint, to reach mould
True relative motion relation between quasi- component.
Wherein there is function quite abundant to can provide such as revolute pair, prismatic pair, ball pair constraint pair to limit structure in ADAMS
True movement operating condition is simulated in the relative motion of part；According to centrifugal governor device motion process principle and structural analysis, institute
State the rotation of the fixed joint that constraint includes spool 9 and bearing, the sliding pair of rotation valve pocket 6 and spool 9, valve pocket 7 and rotation valve pocket 6
The fixed joint of the revolute pair of secondary, bearing and centrifugation block 5, centrifugal-block 4 and centrifugation block 5, is specifically shown in Table 1；
The constraint relationship between 1 centrifugal governor device all parts of table
| Component 1 | Component 2 | Constrained type |
| Shell | Greatly | Fixed joint |
| Spool | Bearing | Fixed joint |
| Rotate valve pocket | Spool | Sliding pair |
| Valve pocket | Rotate valve pocket | Revolute pair |
| Bearing | It is centrifuged block | Revolute pair |
| Centrifugal-block | It is centrifuged block | Fixed joint |
In addition it is also necessary to which structure addition is virtual secondary, more really to restore entire motion process, adjusts and fill for centrifuge
It sets, the displacement of spool 9 reflects mainly by the deflection of spring, therefore first in the central point point in two faces of fixed spring material object
It Chuan Jian two Marker points: Marker124 and Marker125.Spring pair is added between Marker124 and Marker125, and
Set the attribute of spring pair.
After the addition for completing kinematic pair, the driving to centrifugally regulated device is needed to be added, due to centrifugal governor
It is to provide revolving speed by constant speed drive device output shaft, and drive rotation valve pocket 6 to rotate, therefore here by valve pocket 7 and rotation
Rotate driving is added in the revolute pair of rotary valve housing 6.
Here the movement of centrifugal-block 4 drives the jump function STEP provided using ADAMS to complete the driving of column, STEP
The format of function is STEP (A, x0, h0, x1, h1).Wherein A is more typical as independent variable using the time (time), which is to indicate
From x0H when (initial value of independent variable)0It is worth (function initial value), jumps to x1H when (end value of independent variable)1(function is most
Final value) value, that is, usually say the jump function said.
Step 4: setting up parameter thereon, and pre-treatment has just terminated substantially, can carry out emulation meter to entire model
It calculates；Simulation parameter is provided that simulation time be 4 rotational time of centrifugal-block is 10s, and emulation step number is 100.Centrifuge is adjusted
The kinetic model of system and device carries out emulation testing, observes the motion conditions between each component；After completing simulation calculation, enter
Postprocess module in ADAMS is post-processed, and is calculated under different rotating speeds, the misalignment of spool 9 obtains relevant
Characteristic curve.
Step 5: according to the technical standard and design drawing of centrifugal governor device, revolving speed and valve under theoretical calculation are obtained
The characteristic curve that core 9 is displaced is made comparisons and is analyzed with the characteristic curve under analogue simulation.
When setting revolving speed in 2400r/min-3600r/min interval range, centrifugal-block 4 under different rotating speeds with spool 9
Between displacement relation characteristic curve it is as shown in Figure 3.
Can be obtained by the characteristic curve of Fig. 3: before revolving speed reaches 2850r/min, spool 9 does not generate displacement substantially, this
It is primarily due to the governor spring 8 in product structure and inherently there is certain decrement, only when the centrifugal force that revolving speed generates is big
When the pretightning force of spring, governor spring 8 just will continue to be compressed, and then spool 9 generates corresponding displacement.In addition, with revolving speed
It being continuously increased, centrifugal force constantly increases, and amount of spring compression also increases with it, and ever-increasing trend is also presented in the displacement of spool 9, and
It is finally lower near 3600r/min revolving speed to stop.This shell 10 being primarily due to outside centrifugal-block 4 plays position-limiting action, limit
Any increase of 4 revolving speed of centrifugal-block is made, and centrifugal-block 4 can generate interference with shell 10 after beyond certain revolving speed, move nothing
Method continues, it follows that analog result is also extremely consistent with actual experiment situation.
Fig. 4 is that the calculated results and analog result compare, figure 4, it is seen that the growth trend of two curves and position
The variation of shifting is almost the same, and before revolving speed reaches 2850r/min, spool 9 does not generate displacement substantially, and in 3600r/min
Revolving speed is lower nearby to be stopped, through the two to when actual experiment it is found that ADAMS model set up and analog result is correct.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement is both fallen in claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (6)
1. centrifugal governor device rotary speed compensation system simulating analysis, it is characterised in that: the following steps are included:
Step 1: each part model is established under CATIA software environment, neutral file format is converted into after assembly, imported into
In ADAMS software；
Step 2: carrying out Boolean calculation merging to the part of not relative motion during actual motion, simplify simulation model,
And add the material properties of each part；
Step 3: configuring each part quality according to real material, by the freedom degree of addition constraint qualification component movement, then adds
Add the Machine Movement Process of movement driving simulation centrifugal governor device；
Step 4: simulation parameter centrifugal-block rotational time and emulation step number are set, entered in ADAMS software after simulation calculation
Postprocess module obtains the characteristic curve of revolving speed and spool displacement under analogue simulation.
Step 5: according to the technical standard and design drawing of centrifugal governor device, revolving speed and spool position under theoretical calculation are obtained
The characteristic curve of shifting is made comparisons and is analyzed with the characteristic curve under analogue simulation.
2. centrifugal governor device rotary speed compensation system simulating analysis according to claim 1, it is characterised in that: institute
Stating each part model includes turbine, adjusting block, adjusting rod, governor spring, centrifugal-block, centrifugation block, rotation valve pocket, valve pocket, valve
Core.
3. centrifugal governor device rotary speed compensation system simulating analysis according to claim 2, it is characterised in that: institute
State revolute pair, the axis of the fixed joint that constraint includes spool and bearing, the sliding pair of rotation valve pocket and spool, valve pocket and rotation valve pocket
Hold the fixed joint with the revolute pair of centrifugation block, centrifugal-block and centrifugation block.
4. centrifugal governor device rotary speed compensation system simulating analysis according to claim 1, it is characterised in that: institute
Stating needs to add virtual pair also to restore true motion process in step 3, come to the displacement of spool mainly by the deflection of spring
Reflection, therefore two Marker points are respectively created in the central point in two faces of fixed spring, add bullet between two Marker points
Spring pair.
5. centrifugal governor device rotary speed compensation system simulating analysis according to claim 1, it is characterised in that: institute
The jump function STEP that movement driving is provided using ADAMS is stated to complete.
6. centrifugal governor device rotary speed compensation system simulating analysis according to claim 1, it is characterised in that: institute
State simulation parameter centrifugal-block rotational time be set as 10s, emulation step number be set as 100.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018578.4A CN109241616A (en) | 2018-09-03 | 2018-09-03 | Centrifugal governor device rotary speed compensation system simulating analysis |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811018578.4A CN109241616A (en) | 2018-09-03 | 2018-09-03 | Centrifugal governor device rotary speed compensation system simulating analysis |
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| CN109241616A true CN109241616A (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811018578.4A Withdrawn CN109241616A (en) | 2018-09-03 | 2018-09-03 | Centrifugal governor device rotary speed compensation system simulating analysis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889215A (en) * | 2019-11-20 | 2020-03-17 | 常州大学 | ADAMS-based elliptic gear clearance simulation analysis method |
-
2018
- 2018-09-03 CN CN201811018578.4A patent/CN109241616A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889215A (en) * | 2019-11-20 | 2020-03-17 | 常州大学 | ADAMS-based elliptic gear clearance simulation analysis method |
| CN110889215B (en) * | 2019-11-20 | 2023-05-23 | 常州大学 | ADAMS-based elliptic gear gap simulation analysis method |
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