CN115793519A - Atmospheric turbulence simulation system based on Labview and working method thereof - Google Patents
Atmospheric turbulence simulation system based on Labview and working method thereof Download PDFInfo
- Publication number
- CN115793519A CN115793519A CN202211392184.1A CN202211392184A CN115793519A CN 115793519 A CN115793519 A CN 115793519A CN 202211392184 A CN202211392184 A CN 202211392184A CN 115793519 A CN115793519 A CN 115793519A
- Authority
- CN
- China
- Prior art keywords
- module
- atmospheric turbulence
- labview
- communication
- simulation system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
An atmospheric turbulence simulation system based on Labview and a working method thereof belong to the field of flight simulation. The air turbulence simulation system aims to solve the controllability of an air turbulence simulation system. The invention comprises an upper computer, a servo driver, a servo motor and blades; the upper computer is connected with a servo driver, the servo driver is connected with a servo motor, and the servo motor is connected with the blades; the upper computer is provided with a parameter setting module, a communication module, a single-point operation module and a continuous operation module which are developed and designed by a Labview platform; the parameter setting module is connected with the communication module, and the communication module is respectively connected with the single-point operation module and the continuous operation module; the parameter setting module is used for setting communication parameters; the communication module is used for carrying out communication connection; the single-point operation module is used for determining the initial position of the operation of the blade; and the continuous operation module is used for operating the atmospheric turbulence simulation system based on Labview. The invention is used for simulating atmospheric turbulence with different intensities encountered in the high-altitude flight process of an airplane.
Description
Technical Field
The invention belongs to the field of flight simulation, and particularly relates to an atmospheric turbulence simulation system based on Labview and a working method thereof.
Background
In wind tunnel tests, the flight environment of a simulated airplane is mostly based on calm atmosphere, and the influence of the atmospheric turbulence phenomenon on the airplane flight is not considered. However, during actual flight, the aircraft may encounter various disturbances of atmospheric turbulence which may adversely affect the response and loading of the aircraft and in the event of severe conditions may even jeopardize flight safety.
At present, domestic atmospheric turbulence wind tunnel simulation is mainly focused on the simulation of turbulence in an atmospheric boundary layer, a wedge and rough element simulation method is generally adopted, the atmospheric turbulence wind tunnel simulation encountered during the high-altitude flight of an airplane has not been researched yet, and the wedge and rough element simulation method is used for simulating high-altitude atmospheric turbulence and has obvious defects, such as weak simulated turbulence intensity, small simulated turbulence space range and uncontrollable simulated turbulence intensity, so that a high-efficiency wind tunnel atmospheric turbulence simulation system needs to be designed aiming at the characteristics of the high-altitude atmospheric turbulence.
In modern aircraft design, when aircraft atmospheric turbulence response analysis is carried out and an active control system is designed to be slowed down, reasonable mathematical description and physical simulation are required to be carried out on atmospheric turbulence disturbance, so that an atmospheric turbulence simulation system which is used for generating controllable and adjustable atmospheric turbulence disturbance in a wind tunnel test and reasonably simulating the atmospheric turbulence disturbance needs to be researched and developed.
Disclosure of Invention
The invention aims to solve the problem of adjustability of an atmospheric turbulence simulation system, and provides an atmospheric turbulence simulation system based on Labview and a working method thereof.
In order to achieve the purpose, the invention is realized by the following technical scheme:
an atmospheric turbulence simulation system based on Labview comprises an upper computer, a servo driver, a servo motor and blades;
the upper computer is connected with a servo driver, the servo driver is connected with a servo motor, and the servo motor is connected with the blades;
the upper computer is provided with a parameter setting module, a communication module, a single-point operation module and a continuous operation module which are developed and designed by a Labview platform;
the parameter setting module is connected with the communication module, and the communication module is respectively connected with the single-point operation module and the continuous operation module;
the parameter setting module is used for setting communication parameters; the communication module is used for carrying out communication connection; the single-point operation module is used for determining the initial position of the operation of the blade; the continuous operation module is used for operating an atmospheric turbulence simulation system based on Labview.
Furthermore, the upper computer is connected with the servo driver through CAN communication.
Furthermore, the servo driver is connected with the servo motor through a communication cable and a driving cable.
Furthermore, the servo motor is connected with the blades through a coupler and a rotating shaft.
Furthermore, the network addresses of the upper computer, the servo driver, the servo motor and the blades are set to be in the same network segment.
A working method of an atmospheric turbulence simulation system based on Labview is realized by relying on the atmospheric turbulence simulation system based on Labview, and comprises the following steps:
s1, equipment connection: connecting the blade with a servo motor through a coupler and a rotating shaft, connecting the servo motor with a servo driver through a communication cable and a drive cable, and connecting the servo driver with an upper computer through CAN communication;
s2, setting network addresses of the servo driver, the servo motor, the blades and the upper computer to be in the same network segment;
s3, a parameter setting module sets a communication port and baud rate parameter information, the communication module establishes connection with a servo driver through CAN communication, whether the connection is successful is judged, if so, the next step is carried out, and if not, the connection state between the devices is checked;
s4, determining the initial position of the blade to operate through the single-point operation module, triggering the servo driver, sending an atmospheric turbulence digital signal to the servo driver through the upper computer through the continuous operation module, then sending the acceleration, the motion position and the motion frequency to the servo motor through the servo driver, driving the blade to operate through the operation of the servo motor, and carrying out atmospheric turbulence simulation;
and S5, after the operation is finished, the servo driver uploads the motion position data and the moment data fed back by the servo motor to the upper computer through CAN communication and stores the motion position data and the moment data into the upper computer.
Further, the method for generating the atmospheric turbulence digital signal comprises the following steps: based on a Dryen model, generating white noise through random numbers, and enabling the white noise to pass through a shaping filter to obtain colored noise which accords with a target power spectrum, wherein the colored noise is a simulated atmospheric turbulence digital signal, and a transfer function G(s) and a target power spectrum phi (omega) in the shaping filter meet the following formula:
wherein δ is turbulence intensity, L is turbulence integral scale, V is flight speed, ω is time frequency, K is constant, and s is independent variable.
Furthermore, the upper computer adds the parameter setting module, the communication module, the single-point operation module and the continuous operation module in the event branch through the event structure, executes the corresponding conditional branch when waiting for the event, and performs data communication among different parts in the same operation process through the queue operation function.
Further, the atmospheric turbulence digital signal controls the circulation execution rate through the timing VI and the circulation program, and the random movement of the blades is realized.
The invention has the beneficial effects that:
the atmospheric turbulence simulation system based on Labview realizes the atmospheric turbulence simulation function by utilizing the timing structure of the Labview and the CAN bus communication mode between the Labview and the servo driver, CAN simulate atmospheric turbulence with different intensities in the high-altitude flight process of an airplane, CAN regulate and control the disturbance of the atmospheric turbulence according to the test condition, and enriches the capability of a wind tunnel test.
Drawings
FIG. 1 is a schematic structural diagram of an atmospheric turbulence simulation system based on Labview according to the present invention;
FIG. 2 is a connection relationship diagram of each module in the atmospheric turbulence simulation system based on Labview according to the present invention;
FIG. 3 is a flow chart of a working method of the atmospheric turbulence simulation system based on Labview.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described herein are illustrative only and are not limiting, i.e., that the embodiments described are only a few embodiments, rather than all, of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations, and the present invention may have other embodiments.
Thus, the following detailed description of specific embodiments of the present invention presented in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the detailed description of the invention without inventive step, are within the scope of protection of the invention.
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings and the following detailed description:
the first embodiment is as follows:
an atmospheric turbulence simulation system based on Labview comprises an upper computer 1, a servo driver 2, a servo motor 3 and blades 4;
the upper computer 1 is connected with a servo driver 2, the servo driver 2 is connected with a servo motor 3, and the servo motor 3 is connected with a blade 4;
the upper computer 1 is internally provided with a parameter setting module 101 developed and designed by a Labview platform, a communication module 102, a single-point operation module 103 and a continuous operation module 104;
the parameter setting module 101 is connected with a communication module 102, and the communication module 102 is respectively connected with a single-point operation module 103 and a continuous operation module 104;
the parameter setting module 101 is used for setting communication parameters; the communication module 102 is used for performing communication connection; the single-point operation module 103 is used for determining the initial position of the blade operation; the continuous operation module 104 is used for operation of an atmospheric turbulence simulation system based on Labview.
Further, the upper computer 1 is connected with the servo driver 2 through CAN communication.
Furthermore, the servo driver 2 is connected with the servo motor 3 through a communication cable and a driving cable.
Furthermore, the servo motor 3 is connected with the blade 4 through a coupler and a rotating shaft.
Furthermore, the network addresses of the upper computer 1, the servo driver 2, the servo motor 3 and the blades 4 are set to be in the same network segment.
The second embodiment is as follows:
a working method of an atmospheric turbulence simulation system based on Labview is realized by the atmospheric turbulence simulation system based on Labview according to the first specific embodiment, and comprises the following steps:
s1, equipment connection: connecting the blade with a servo motor through a coupler and a rotating shaft, connecting the servo motor with a servo driver through a communication cable and a drive cable, and connecting the servo driver with an upper computer through CAN communication;
s2, setting network addresses of the servo driver, the servo motor, the blades and the upper computer to be in the same network segment;
s3, a parameter setting module sets a communication port and baud rate parameter information, the communication module establishes connection with a servo driver through CAN communication, whether the connection is successful is judged, if so, the next step is carried out, and if not, the connection state between the devices is checked;
s4, determining the initial position of the blade to operate through the single-point operation module, triggering the servo driver, sending an atmospheric turbulence digital signal to the servo driver through the upper computer through the continuous operation module, then sending the acceleration, the motion position and the motion frequency to the servo motor through the servo driver, driving the blade to operate through the operation of the servo motor, and carrying out atmospheric turbulence simulation;
and S5, after the operation is finished, the servo driver uploads the motion position data and the moment data fed back by the servo motor to the upper computer through CAN communication and stores the motion position data and the moment data into the upper computer.
Further, the method for generating the atmospheric turbulence digital signal comprises the following steps: based on a Dryen model, generating white noise through random numbers, and enabling the white noise to pass through a shaping filter to obtain colored noise which accords with a target power spectrum, wherein the colored noise is a simulated atmospheric turbulence digital signal, and a transfer function G(s) and a target power spectrum phi (omega) in the shaping filter meet the following formula:
wherein δ is turbulence intensity, L is turbulence integral scale, V is flight speed, ω is time frequency, K is constant, and s is independent variable.
Furthermore, the upper computer adds the parameter setting module, the communication module, the single-point operation module and the continuous operation module in the event branch through an event structure, executes the corresponding conditional branch when waiting for the event, and performs data communication among different parts of the program diagram in the same operation process through the queue operation function.
Further, the atmospheric turbulence digital signal controls the cycle execution rate through the timing VI and the cycle program, so that the random motion of the blade is realized.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or apparatus that comprises the element.
While the application has been described above with reference to specific embodiments, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the application. In particular, the various features of the embodiments disclosed herein can be used in any combination with one another as long as no structural conflict exists, and the combination is not exhaustive in this specification for reasons of brevity and resource economy. Therefore, it is intended that the application not be limited to the particular embodiments disclosed, but that the application will include all embodiments falling within the scope of the appended claims.
Claims (9)
1. An atmospheric turbulence simulation system based on Labview is characterized in that: comprises an upper computer (1), a servo driver (2), a servo motor (3) and blades (4);
the upper computer (1) is connected with the servo driver (2), the servo driver (2) is connected with the servo motor (3), and the servo motor (3) is connected with the blades (4);
the upper computer (1) is internally provided with a parameter setting module (101), a communication module (102), a single-point operation module (103) and a continuous operation module (104) which are developed and designed by a Labview platform;
the parameter setting module (101) is connected with a communication module (102), and the communication module (102) is respectively connected with a single-point operation module (103) and a continuous operation module (104);
the parameter setting module (101) is used for setting communication parameters; the communication module (102) is used for communication connection; the single-point operation module (103) is used for determining the initial position of the operation of the blade; the continuous operation module (104) is used for operation of the Labview-based atmospheric turbulence simulation system.
2. The Labview-based atmospheric turbulence simulation system as recited in claim 1, wherein: the upper computer (1) is connected with the servo driver (2) through CAN communication.
3. The Labview-based atmospheric turbulence simulation system as recited in claim 2, wherein: the servo driver (2) is connected with the servo motor (3) through a communication cable and a driving cable.
4. The Labview-based atmospheric turbulence simulation system as recited in claim 3, wherein: the servo motor (3) is connected with the blades (4) through a coupler and a rotating shaft.
5. The Labview-based atmospheric turbulence simulation system as recited in claim 4, wherein: the network addresses of the upper computer (1), the servo driver (2), the servo motor (3) and the blades (4) are set to be in the same network segment.
6. A working method of an atmospheric turbulence simulation system based on Labview is realized by the atmospheric turbulence simulation system based on Labview according to one of claims 1-5, and is characterized in that: the method comprises the following steps:
s1, equipment connection: connecting the blade with a servo motor through a coupler and a rotating shaft, connecting the servo motor with a servo driver through a communication cable and a drive cable, and connecting the servo driver with an upper computer through CAN communication;
s2, setting network addresses of the servo driver, the servo motor, the blades and the upper computer to be in the same network segment;
s3, a parameter setting module sets a communication port and baud rate parameter information, the communication module establishes connection with a servo driver through CAN communication, whether the connection is successful is judged, if so, the next step is carried out, and if not, the connection state between the devices is checked;
s4, determining the initial position of the blade to operate through the single-point operation module, triggering the servo driver, sending an atmospheric turbulence digital signal to the servo driver through the upper computer through the continuous operation module, then sending the acceleration, the motion position and the motion frequency to the servo motor through the servo driver, driving the blade to operate through the operation of the servo motor, and carrying out atmospheric turbulence simulation;
and S5, after the operation is finished, the servo driver uploads the motion position data and the moment data fed back by the servo motor to the upper computer through CAN communication and stores the motion position data and the moment data into the upper computer.
7. The working method of the Labview-based atmospheric turbulence simulation system as claimed in claim 6, wherein: the method for generating the atmospheric turbulence digital signal comprises the following steps: based on a Dryen model, generating white noise through random numbers, and enabling the white noise to pass through a shaping filter to obtain colored noise which accords with a target power spectrum, wherein the colored noise is a simulated atmospheric turbulence digital signal, and a transfer function G(s) and a target power spectrum phi (omega) in the shaping filter meet the following formula:
wherein, δ is the turbulence intensity, L is the turbulence integral scale, V is the flight speed, ω is the time frequency, K is a constant, and s is an independent variable.
8. The working method of the Labview-based atmospheric turbulence simulation system as claimed in claim 7, wherein: the upper computer adds the parameter setting module, the communication module, the single-point operation module and the continuous operation module in the event branch through the event structure, executes the corresponding condition branch when waiting for the event, and performs data communication among different parts in the same operation process through the queue operation function.
9. The working method of the Labview-based atmospheric turbulence simulation system as claimed in claim 8, wherein: the atmospheric turbulence digital signal controls the circulation execution rate through a timing VI and a circulation program to realize the random movement of the blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211392184.1A CN115793519A (en) | 2022-11-08 | 2022-11-08 | Atmospheric turbulence simulation system based on Labview and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211392184.1A CN115793519A (en) | 2022-11-08 | 2022-11-08 | Atmospheric turbulence simulation system based on Labview and working method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115793519A true CN115793519A (en) | 2023-03-14 |
Family
ID=85436050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211392184.1A Pending CN115793519A (en) | 2022-11-08 | 2022-11-08 | Atmospheric turbulence simulation system based on Labview and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115793519A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116067608A (en) * | 2023-03-17 | 2023-05-05 | 中国航空工业集团公司哈尔滨空气动力研究所 | Atmospheric turbulence simulation device |
| CN116337396A (en) * | 2023-05-30 | 2023-06-27 | 中国航空工业集团公司哈尔滨空气动力研究所 | Method for actively simulating wind tunnel test by using high-altitude atmospheric turbulence |
-
2022
- 2022-11-08 CN CN202211392184.1A patent/CN115793519A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116067608A (en) * | 2023-03-17 | 2023-05-05 | 中国航空工业集团公司哈尔滨空气动力研究所 | Atmospheric turbulence simulation device |
| CN116337396A (en) * | 2023-05-30 | 2023-06-27 | 中国航空工业集团公司哈尔滨空气动力研究所 | Method for actively simulating wind tunnel test by using high-altitude atmospheric turbulence |
| CN116337396B (en) * | 2023-05-30 | 2023-07-21 | 中国航空工业集团公司哈尔滨空气动力研究所 | Method for actively simulating wind tunnel test by using high-altitude atmospheric turbulence |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115793519A (en) | Atmospheric turbulence simulation system based on Labview and working method thereof | |
| CN113567083B (en) | Multi-component aerodynamic interference characteristic test simulation method for full-motion horizontal tail helicopter | |
| CN104865845B (en) | Large-scale wind electricity unit real time execution controls union simulation platform and its construction method | |
| CN109270947B (en) | Tilt rotor unmanned aerial vehicle flight control system | |
| Peixun et al. | Aeroacoustic and aerodynamic optimization of propeller blades | |
| CN107942720A (en) | A kind of online flight Simulation System of portable type ground | |
| WO2018169605A1 (en) | Neural network for steady-state performance approximation | |
| JP4102166B2 (en) | Rotor torque prediction device | |
| CN105676672B (en) | The compound countermeasures emulation modelling method of flapping wing aircraft | |
| CN110928200B (en) | Virtual-real linkage simulation test system and method for unmanned aerial vehicle | |
| CN103064299A (en) | In-the-loop simulation test and control system of wind generating set and test method thereof | |
| CN112634704A (en) | Flight simulation system, method and storage medium | |
| CN103760809A (en) | Simulation method and device for simulating operation of wind turbine generator and PLC system | |
| JP2003160099A (en) | Rotor torque predicting device | |
| Jia et al. | Computational study on noise of urban air mobility quadrotor aircraft | |
| Engelund et al. | Propulsion system airframe integration issues and aerodynamic database development for the Hyper-X flight research vehicle | |
| CN202257263U (en) | Hardware in-loop experimental system for testing master control system of wind-driven generator | |
| CN112594069A (en) | Turboshaft engine anti-interference control method and device based on power demand prediction | |
| Cocco et al. | Tiltrotor whirl flutter analysis in support of NGCTR aeroelastic wind tunnel model design | |
| CN109625315A (en) | A kind of helicopter based on maximum performance takes off critical decision point Flight Test Method | |
| CN114879533A (en) | eVTOL aircraft control surface load simulation test method | |
| CN211685678U (en) | Simulation analysis system of real-time trail of multi-rotor unmanned aerial vehicle | |
| Perdolt et al. | Efficient Mid-Fidelity Aerodynamic Modeling of a Tilt-Wing eVTOL for Control Applications | |
| CN110705141A (en) | Fatigue load spectrum determination method for external airplane accessory casing fixing device | |
| CN115064736B (en) | Testing device and method for hydrogen fuel cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |