CN102323071A - Curve simulation test system and method - Google Patents
Curve simulation test system and method Download PDFInfo
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- CN102323071A CN102323071A CN201110234177A CN201110234177A CN102323071A CN 102323071 A CN102323071 A CN 102323071A CN 201110234177 A CN201110234177 A CN 201110234177A CN 201110234177 A CN201110234177 A CN 201110234177A CN 102323071 A CN102323071 A CN 102323071A
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Abstract
The invention provides a curve simulation test system and a method. The curve simulation test method comprises the following steps of: 1, idling a platform device of a curve simulation test system, driving an upper rotating platform of the platform device to rotate at a set target angle according to a set target speed by using a power device of the curve simulation test system, and generating an idle curve chart for the idling of the platform device by using a host in the rotating process of the upper rotating platform rotating towards the target angle; 2, applying a load to the platform device, driving the upper rotating platform to rotate at a target angle during idling according to a target speed set during idling of the upper rotating platform by using the power device, and generating a load curve chart for the loading of the platform device by using the host in the rotating process of the upper rotating platform rotating towards the target angle; and 3, subtracting the idling curve chart from the load curve chart so as to obtain a load curve chart of the load. According to the system and the method, the effect of providing important experiment data for the design, the development and verification of a steering frame can be achieved.
Description
Technical field
The present invention relates to the bogie field of locomotive, especially, relate to a kind of curve simulation pilot system.In addition, the invention still further relates to a kind of experimental technique that above-mentioned curve simulation pilot system is carried out curve simulation of using.
Background technology
Bogie is one of most important parts on the rail truck, its direct bearing body deadweight and load-carrying.The bogie guided vehicle moves along railroad track, guarantees vehicle smoothly through curve, and the effect that has the vibrations of bringing when slowing down vehicle operating and impact.Therefore the design of bogie has also directly determined the stability of vehicle and the comfortableness of vehicle ride.
In the prior art, the simulation test device of engine truck operating mode is merely easy rotation platform, and whether utilize this rotation platform to observe bogie has interference in steering procedure.But, in the prior art simulation test device of bogie operating mode is not had the function that the service data to bogie detects, gathers and handles, thereby can not important experimental data be provided for design, exploitation and the checking of bogie.
Summary of the invention
The object of the invention is to provide a kind of curve simulation pilot system and method; Do not have the function that the service data to bogie detects, gathers and handles to solve in the prior art simulation test device to the bogie operating mode, thereby the technical matters of important experimental data can not be provided for design, exploitation and the checking of bogie.
For realizing above-mentioned purpose, according to an aspect of the present invention, a kind of curve simulation pilot system is provided, comprise host computer, reach the control device that is connected with host computer, the curve simulation pilot system also comprises the propulsion system that are connected with control device; The curve simulation pilot system also comprises a stage apparatus, and stage apparatus comprises rotation platform on, following basic platform, and connects the intermediate supports whirligig of going up rotation platform and following basic platform; Propulsion system are installed on down basic platform, connect and drive to go up the rotation platform rotation; The curve simulation pilot system also comprises angle detection device, device for measuring force and speed detector, and wherein, angle detection device is installed on the intermediate supports whirligig, is used to gather the deflection angle value that the intermediate supports whirligig produces deflection angle; Device for measuring force is installed on propulsion system, is used to gather propulsion system and drives the upward employed force value of rotation platform generation deflection angle; Speed detector is installed on rotation platform, is used for gathering the rotational speed value of rotation platform rotary course; Angle detection device, device for measuring force and speed detector all connect host computer.
Further, the intermediate supports whirligig comprises a turntable bearing; Last rotation platform is rotation deflection angle in axle center with the turntable bearing.
Further, angle detection device comprises an angular transducer; Angular transducer is installed on turntable bearing, and is used to gather the deflection angle of turntable bearing rotation.
Further, propulsion system are hydraulic means; Propulsion system comprise first oil cylinder and second oil cylinder that is fixedly installed in down basic platform symmetrically; First oil cylinder and second oil cylinder drive respectively simultaneously goes up the rotation platform rotation.
Further, first oil cylinder seat of first oil cylinder is fixedly installed in down first end of basic platform, and the first cylinder bar of first oil cylinder is connected in first side of rotation platform; Second oil cylinder seat of second oil cylinder is fixedly installed in down second end symmetrical with first end of basic platform, and the second cylinder bar of second oil cylinder is connected in second side symmetrical with first side of rotation platform.
Further, propulsion system also comprise a proportioning valve, and proportioning valve connects first oil cylinder and second oil cylinder respectively, and proportioning valve is used to control the flow of first oil cylinder and second oil cylinder.
Further, device for measuring force comprises first force cell and second force cell; First force cell and second force cell are installed on first oil cylinder and second oil cylinder respectively; First force cell and second force cell are gathered first acting force and second acting force that produces when rotation platform rotates deflection angle on first oil cylinder and second hydraulic oil cylinder driving respectively simultaneously.
Further, first force cell and second force cell are connected with host computer through first amplifier and second amplifier respectively.
Further, stage apparatus also comprises symmetrically arranged anchoring device; Anchoring device comprises holder and movable axis; Holder is fixedly set in down basic platform; Movable axis is arranged at rotation platform axially and movably, and movable axis and holder over against.
Further, stage apparatus also comprises symmetrically arranged auxiliary supports, and auxiliary supports is installed on the bottom surface of rotation platform, and auxiliary supports and following basic platform compress.
According to a further aspect in the invention; A kind of curve simulation test method also is provided; Above-mentioned curve simulation pilot system is provided; The curve simulation test method in turn includes the following steps: S1, and the stage apparatus of curve simulation pilot system is unloaded, and the propulsion system of curve simulation pilot system rotate according to the angle on target of setting according to the last rotation platform of the target velocity drives platform device of setting; Last rotation platform rotates in the process of angle on target, the no-load curve figure when host computer generates the stage apparatus zero load; S2; Stage apparatus is added with load; The target velocity that propulsion system are set when unloaded according to last rotation platform drives the angle on target rotation when going up rotation platform according to zero load, and last rotation platform rotates in the process of angle on target, the load curve figure when host computer generation stage apparatus is added with load; S3, load curve figure deduct the load curve figure of no-load curve figure as load.
Further; In the S1 step; Before the angle on target rotation of last rotation platform according to setting of propulsion system according to the target velocity drives platform device of setting; The curve simulation test method also in turn includes the following steps: the feasible angle on target value that goes up rotation platform rolling target angle of input from the host computer of curve simulation pilot system, and simultaneously, input makes propulsion system drive and goes up the target speed value that rotation platform rotates from host computer; Host computer generates rotation control signal according to angle on target value and target speed value, and rotation control signal is sent to control device; Control device sends control information according to rotation control signal and gives propulsion system; Propulsion system drive upward according to control information with target velocity, and rotation platform rotates to angle on target.
Further; In the S1 step; When last rotation platform rotates in the process of angle on target, the angle detection device of curve simulation pilot system, device for measuring force and speed detector carry out following steps respectively simultaneously: the deflection angle value that produces in the rotation platform rotary course in the angle detection device collection also sends to host computer with the deflection angle value; The driving of device for measuring force collection propulsion system is gone up rotation platform and is rotated to unloaded force value in the angle on target process, and unloaded force value is sent to host computer; Rotation platform rotates to the rotational speed value in the angle on target process in the speed detector collection, and the rotational speed value is sent to host computer.
Further; After angle detection device and device for measuring force sent to host computer with deflection angle value and unloaded force value respectively, host computer carries out following steps successively: host computer obtained the unloaded torsional forces of rotation platform under unloaded force value according to unloaded force value; Host computer generates the no-load curve figure of unloaded torsional forces and deflection angle value according to unloaded torsional forces and deflection angle value.
Further, after speed detector sent to host computer with the rotational speed value, host computer carries out following steps: host computer obtained target speed value according to the rotational speed value.
Further; In the S2 step; Before angle on target rotation when propulsion system are gone up rotation platform according to zero load according to the target velocity driving of setting; The curve simulation test method also in turn includes the following steps: input makes the loaded angle on target value that goes up rotation platform rolling target angle is installed from the host computer of curve simulation pilot system, and simultaneously, input makes propulsion system drive the target speed value of going up the rotation platform rotation from host computer; Host computer generates rotation control signal according to angle on target value and target speed value, and rotation control signal is sent to control device; Control device sends control information according to rotation control signal and gives propulsion system; Propulsion system drive upward according to control information with target velocity, and rotation platform rotates to angle on target.
Further; In the S2 step; Last rotation platform rotates in the process of angle on target, the angle detection device of curve simulation pilot system, surveys device and speed detector carries out following steps respectively simultaneously: the deflection angle value that produces in the rotation platform rotary course in the angle detection device collection also sends to host computer with the deflection angle value; Device for measuring force is gathered the loaded rotation platform of going up of propulsion system drive installation and is rotated to load force value in the angle on target process, and the load force value is sent to host computer; Rotation platform rotates to the rotational speed value in the angle on target process in the speed detector collection, and the rotational speed value is sent to host computer.
Further; After angle detection device and device for measuring force sent to host computer with deflection angle value and unloaded force value respectively, host computer carried out following steps successively: host computer obtains installing the loaded load torque power of rotation platform under the load force value that goes up according to the load force value; Host computer generates the load curve figure of load torque power and deflection angle value according to load torque power and deflection angle value.
Further, after speed detector sent to host computer with the rotational speed value, host computer carries out following steps: host computer obtained target speed value according to the rotational speed value.
The present invention has following beneficial effect:
Through the present invention, can detect for the service data of bogie, gather and handle, and then important experimental data is provided design, exploitation and the checking of bogie.
Except top described purpose, feature and advantage, the present invention also has other purpose, feature and advantage.To do further detailed explanation to the present invention with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the curve simulation pilot system of the preferred embodiment of the present invention;
Fig. 2 is the structural representation of the stage apparatus of the preferred embodiment of the present invention;
Fig. 3 is the structural representation of other embodiment of the curve simulation pilot system of the preferred embodiment of the present invention;
Fig. 4 is the schematic flow sheet of the curve simulation test method of the preferred embodiment of the present invention; And
Fig. 5 is that first oil cylinder of the preferred embodiment of the present invention makes when upward rotation platform is rotated counterclockwise the force analysis figure of last rotation platform.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
Referring to Fig. 1, curve simulation pilot system of the present invention comprises stage apparatus 7, angle detection device 8, device for measuring force 9, speed detector 6, propulsion system 5, control device 3 and host computer 1.Host computer 1 is connected with control device 3.Control device 3 is connected with propulsion system 5.Last rotation platform 71 rotations of propulsion system 7 drives platform devices 7.Preferably, control device 3 adopts PLC.
Referring to Fig. 2, stage apparatus 7 comprises rotation platform 71, following basic platform 75 and connects the intermediate supports whirligig 73 of going up rotation platform 71 and following basic platform 75.
Intermediate supports whirligig 73 comprises a turntable bearing 731.The rotatable basic platform 75 that is connected in down of one end of turntable bearing 731, the other end of turntable bearing 731 is fixedly connected on rotation platform 71.When turntable bearing 731 rotations, last rotation platform 71 is followed turntable bearing 731 and is rotated together.
Stage apparatus 7 also comprises symmetrically arranged anchoring device 77.Anchoring device 77 comprises holder 771 and movable axis 773.Holder 771 is fixedly set in down basic platform 75, and movable axis 773 is arranged at rotation platform 71 axially and movably.Movable axis 773 and holder 771 over against.
The major function that stage apparatus 7 is provided with anchoring device 77 is the upward rotation of rotation platform 71 of restriction, makes track and the ground rail butt joint on the rotation platform 71 and lock to go up rotation platform 71, so that motorcycle safety drives to or sail out of stage apparatus 7.When beginning to test, need cancel lock-out state.
The structure of anchoring device 77 can be bolt-type, and the movable axis 773 of promptly going up rotation platform 71 settings can be active pin shaft, and the holder 771 that following basic platform 75 fixedly installs can be axis pin base.When active pin shaft inserted axis pin base, whole flat device 7 was in the grappling state, and last rotation platform 71 can't rotate.When active pin shaft is extracted out from axis pin base, for removing the grappling state.Experimental facilities locomotive driving to or go and must be in the grappling state when leaving rotation platform 71, the experimental facilities Long-time Shut-down also will be in the grappling state, only in experimentation, is in the grappling state of removing.The power of operation anchoring device 77 can adopt hydraulic pressure, electric power or manpower.
Stage apparatus 7 also comprises symmetrically arranged auxiliary supports 79.Auxiliary supports 79 is installed on the bottom surface of rotation platform 71, and auxiliary supports 79 compresses with following basic platform 75.
Auxiliary supports 79 mainly is made up of roller, bearing, supporting base and coupling.Wherein, supporting base is fixedly installed in the bottom surface of rotation platform 1, and supporting base is installed with bearing.Roller is installed in the bearing.Roller compresses with following basic platform 75.The fundamental purpose that auxiliary supports 79 is set is to improve the load force of the turntable bearing 731 of intermediate supports whirligig 73, thereby reduces the rigidity requirement to last rotation platform 71, and then reduces the elastic deformation of going up rotation platform 71.
Stage apparatus 7 also comprises symmetrically arranged ground supports adjusting gear 70.Ground supports transfers device 70 to comprise built-in fitting and ground adjustment cushion block.Ground supports adjusting gear 70 can play height, the flatness of adjustment stage apparatus 7, the effect of support loads, and can prevent down that mobile phenomenon in use appears in basic platform 75.
Propulsion system 5 are hydraulic means.Hydraulic means comprises first oil cylinder 51 and second oil cylinder 53.First oil cylinder 51 and second oil cylinder 53 are fixedly installed in down basic platform 75 symmetrically.Wherein first oil cylinder seat 511 of first oil cylinder 51 is fixedly installed in down first end of basic platform 75, and the first cylinder bar 513 of first oil cylinder 51 is connected in first side of rotation platform 71.Second oil cylinder seat 531 of second oil cylinder 53 is fixedly installed in down second end symmetrical with first end of basic platform 75, and the second cylinder bar 533 of second oil cylinder 53 is connected in and symmetrical second side of first side of last rotation platform 71.First and second oil cylinder 53 drives simultaneously respectively and goes up rotation platform 71 is that circular motion is carried out in the axle center with turntable bearing 731.
In the present invention, propulsion system 5 also comprise a proportioning valve 55.Proportioning valve 55 connects first oil cylinder 51 and second oil cylinder 53 respectively.Proportioning valve 55 is used to control the flow of first oil cylinder 51 and second oil cylinder 53.
Angle detection device 8 comprises angular transducer 81.Angular transducer 81 is installed on turntable bearing 731, is used to gather the deflection angle that produces when rotation platform 71 is followed turntable bearing 731 rotations, thereby obtains the deflection angle value.Angle detection device 8 sends to host computer 1 with the deflection angle value.
Device for measuring force 9 comprises first force cell 91 and second force cell 93.The first cylinder bar 513 that first force cell 91 is used to gather first oil cylinder 51 drives first force value that produces when going up rotation platform 71 rotations.The second cylinder bar 533 that second force cell 93 is used to gather second oil cylinder 53 drives second force value that produces when going up rotation platform 71 rotations.First force cell 91 and second force cell 93 send to host computer 1 respectively with first acting force and second acting force.
For data that host computer 1 is obtained are more accurate, second acting force that first acting force that first force cell 91 records and second force cell 93 record is redispatched to host computer 1 after first amplifier 95 and second amplifier 97 amplify respectively.
The curve simulation test unit also includes speed detector 6.Speed detector 6 comprises a tachogenerator 61.Tachogenerator 61 is installed on rotation platform 71, is used for gathering the rotational speed value of rotation platform 71 at rotary course.Tachogenerator 61 sends to host computer 1 with measured rotational speed value.
See also Fig. 3, in other embodiments, host computer 1 can send to control device 3 with rotation control signal through a Control Network 2.Control Network 2 can be modbus TCP network.Rotational speed value, deflection angle value and the force value that speed detector 6, angle detection device 8 and device for measuring force 9 are gathered respectively (force value comprises first acting force and second acting force) can be published on data network 4.Data network 4 can be the CANOPEN network.Host computer 1 can read rotational speed value, deflection angle value and force value respectively from data network 4, and control device 3 also can read rotational speed value, deflection angle value and force value respectively from data network 4.
Referring to Fig. 4, use the method that above-mentioned curve simulation pilot system realizes curve simulation, specific as follows:
Step S1; Stage apparatus 7 zero loads of curve simulation pilot system; Propulsion system 5 rotate according to the angle on target of setting according to the last rotation platform 71 of the target velocity drives platform device of setting 7; Last rotation platform 71 rotates in the process of angle on target, the no-load curve figure when host computer 1 generates stage apparatus 7 zero loads.
The precondition that host computer 1 obtains no-load curve figure is that stage apparatus 7 is light condition.The detailed process that obtains no-load curve figure through above-mentioned step S1 is:
The feasible angle on target value that goes up rotation platform 71 rolling target angles of input from the host computer 1 of curve simulation pilot system, simultaneously, input makes propulsion system 5 drive and goes up the target speed value that rotation platform 71 rotates from host computer 1.Host computer 1 generates rotation control signal according to angle on target value and target speed value, and rotation control signal is sent to control device 3.Control device 3 sends control information according to rotation control signal and gives propulsion system 5.Propulsion system 5 drive upward according to control information with target velocity, and rotation platform 71 rotates to angle on target.When last rotation platform 71 rotates in the process of angle on target, angle detection device 8 is gathered and is gone up the deflection angle value that produces in rotation platform 71 rotary courses and the deflection angle value is sent to host computer 1; Simultaneously, 5 drivings of device for measuring force 9 collection propulsion system are gone up rotation platform 71 and are rotated to unloaded force value in the angle on target process, and unloaded force value is sent to host computer 1; Simultaneously, speed detector 6 collections are gone up rotation platform 7 and are rotated to the rotational speed value in the angle on target process, and the rotational speed value is sent to host computer 1.Host computer 1 obtains target speed value according to the rotational speed value that obtains.Then, host computer 1 obtains the unloaded torsional forces of rotation platform 71 under unloaded force value according to unloaded force value.Then, host computer 1 generates the no-load curve figure of unloaded torsional forces and deflection angle value according to unloaded torsional forces and deflection angle value.
In the detailed process of step S1, include: host computer 1 obtains the step of the unloaded torsional forces of rotation platform 71 under unloaded force value according to unloaded force value.Set forth as follows in the face of the detailed process of this step down.
When last rotation platform 71 when 0 ° rotates to the angle on target value, last rotation platform 71 whenever reaches a deflection angle value, all can have one with the corresponding unloaded torsional forces of deflection angle value.See also Fig. 5, Fig. 5 is that first oil cylinder 51 makes when upward rotation platform 71 is rotated counterclockwise the force analysis figure of last rotation platform 71.
D is the movement locus of last rotation platform 71 under first acting force of first oil cylinder 51, and this movement locus is circular.
A is the vertical range of turntable bearing 731 to d, and a is a constant.
B is the distance of the oil cylinder seat of first oil cylinder 51 to turntable bearing 731.Because oil cylinder seat is hard-wired, therefore, b also is a constant.
C is the length of the cylinder bar of first oil cylinder 51, and the length of c is different because of the angle of rotation.
Angle C is the deflection angle value of turntable bearing 731 rotation, and when turntable bearing 731 rotates to from 0 ° the process of angle on target, angle C constantly changes.
Angle B is the angle of limit a and limit c.
Angle A is the angle of limit c and limit b.
Angle D is the right angle, also is constant.
F
2Be 51 pairs of first unloaded acting forces of going up rotation platform 71 of first oil cylinder.Therefore, F
2Can directly record with first force cell 91, be given value.
F
2Be decomposed into the first unloaded horizontal component F
1And the first unloaded vertical stress component F
3The first unloaded horizontal component F
1To last rotation platform 71 works done, but the first unloaded vertical stress component F
3To last rotation platform 71 not works done.
The computation process of the first unloaded torsional forces T1 of 51 pairs of last rotation platforms 71 of first oil cylinder is following:
F
1＝F
2×sinB
The first unloaded torsional forces T
1=F
1* a.Formula: the moment=power * arm of force.
Thereby obtain the first unloaded torsional forces T
1Corresponding relation with deflection angle value C.
In like manner, 53 couples of second unloaded torsional forces T that go up rotation platform 71 of second oil cylinder
2Calculating also adopt and as above calculate principle.
The first unloaded torsional forces T
1And the second unloaded torsional forces T
2Sum is 5 pairs of unloaded torsional forces of going up rotation platform 71 of propulsion system.
In the detailed process of above-mentioned steps S1: after host computer 1 obtains target speed value according to the rotational speed value that obtains; When last rotation platform 71 still in the process of angle on target rotation, host computer sends to control device 3 with the target speed value formation speed control signal that obtains.Control device 3 is according to the target velocity operation of speed control signal driving power device 5 according to target speed value.
Please again referring to Fig. 5, V
2The first cylinder bar 511 that is first oil cylinder 51 is at F
2The target velocity that produced down of acting force, the concrete numerical value of target velocity is target speed value.Target velocity is to be determined by the target speed value that host computer 1 is imported.
V
1For last rotation platform 71 at F
2The rotational speed that produced down of acting force.The concrete numerical value of rotational speed is gathered through tachogenerator 61, obtains the rotational speed value.Tachogenerator 61 feeds back to host computer 1 with the rotational speed value.
In order to make the no-load curve figure that obtains more accurate, then go up rotation platform 71 and be constant speed rotation, i.e. V
1Be constant.V
1Can directly read through tachogenerator 61, be known numerical value.In order to make that going up rotation platform 71 presses V
1The constant speed rotation then needs V
2Target velocity is controlled.
Can infer through the trigonometric function relation:
Then:
Can know deflection angle value C and V from above-mentioned mathematical expression
2Corresponding relation.Last rotation platform 71 whenever reaches a deflection angle value C, and corresponding with it V all can be arranged
2When last rotation platform 71 in rotary course, host computer 1 is with V
2As target velocity, propulsion system 5 are pressed V
2Operation.
In the process that last rotation platform 7 is rotating, the collection of 81 pairs of turntable bearing 731 deflection angle values of angular transducer is real-time.Simultaneously, first force cell 91 and second force cell 93 also are real-time to the collection of the first unloaded acting force and the second unloaded acting force respectively.61 pairs of collections of going up rotation platform 71 rotational speed values of tachogenerator also are real-time.
After host computer 1 generates no-load curve figure, carry out step S2 again.Step S2 is that stage apparatus 7 is added with load; The target velocity that propulsion system 5 are set during according to zero load drives the angle on target rotation when going up rotation platform 71 according to zero load; Last rotation platform 71 rotates in the process of angle on target, the load curve figure when host computer 1 generation stage apparatus 7 is added with load.
The precondition that host computer 1 obtains load curve figure is that stage apparatus 7 is added with load.The detailed process that obtains load curve figure through above-mentioned step S2 is:
Input makes the loaded angle on target value that goes up rotation platform 71 rolling target angles is installed from the host computer 1 of curve simulation pilot system, and simultaneously, input makes propulsion system 5 drive the target speed value of going up rotation platform 71 rotations from host computer 1.Host computer 1 generates rotation control signal according to angle on target value and target speed value, and rotation control signal is sent to control device 3.Control device 3 sends control information according to rotation control signal and gives propulsion system 5.Propulsion system 5 drive upward according to control information with target velocity, and rotation platform 71 rotates to angle on target.When last rotation platform 71 rotates in the process of angle on target, angle detection device 8 is gathered and is gone up the deflection angle value that produces in rotation platform 71 rotary courses and the deflection angle value is sent to host computer 1; Simultaneously, device for measuring force 9 is gathered the loaded rotation platform 71 of going up of propulsion system 5 drive installations and is rotated to load force value in the angle on target process, and the load force value is sent to host computer 1; Simultaneously, speed detector 6 collections are gone up rotation platform 7 and are rotated to the rotational speed value in the angle on target process, and the rotational speed value is sent to host computer 1.Host computer 1 obtains target speed value according to the rotational speed value that obtains.Then, host computer 1 obtains the load torque power of rotation platform 71 under the load force value according to the load force value.Then, host computer 1 generates the load curve figure of load torque power and deflection angle value according to load torque power and deflection angle value.
In step S2, host computer 1 is identical according to the principle that unloaded force value obtains the unloaded torsional forces of rotation platform 71 under unloaded force value among host computer 1 obtains the load torque power of rotation platform 71 under unloaded force value according to the load force value principle and the step S1.
In like manner, in step S2, it is identical with principle among the step S1 that host computer 1 obtains the principle of target speed value according to the rotational speed value that obtains.Propulsion system 5 are according to the target velocity operation of target speed value.
Host computer carries out step S3 after generating load curve figure again.Step S3 is: the load curve figure that deducts the load itself that the no-load curve figure that obtains among the step S1 installs as last rotation platform 71 with the load curve figure that obtains among the step S2.
Preferably, the load in the present embodiment can be the bogie of locomotive.Bogie as the detailed process that load is installed on stage apparatus 7 is: make the anchoring device 77 of stage apparatus 7 be in the grappling state earlier, adjust ground supports adjusting gear 70 again.The locomotive that will have bogie reaches on the stage apparatus 7, follows the rotation center with the center of rotation alignment stage device 7 of bogie.The rotation center of stage apparatus 7 is a turntable bearing 731.
In the above embodiment of the present invention, the no-load curve figure that stage apparatus 7 obtains under light condition forms because of stage apparatus 7 friction force and other resistances own.Stage apparatus 7 is equipped with the load curve figure that obtains under the state of bogie and forms because of stage apparatus 7 friction force, other resistance and bogies itself own.Deduct no-load curve figure with load curve figure and just can obtain the torsional forces of bogie itself and the curve map of deflection angle value corresponding relation.The purpose of doing like this is: other external factor that influences bogie structure is got rid of, when only analyzing bogie itself and rotating different deflection angles and the relation of torsional forces.Thereby important experimental data is provided for the design of engine truck, exploitation and checking.
More than be merely the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (19)
1. a curve simulation pilot system comprises host computer (1), reaches the control device (3) that is connected with said host computer (1), it is characterized in that,
Said curve simulation pilot system also comprises the propulsion system (5) that are connected with said control device (3);
Said curve simulation pilot system also comprises a stage apparatus (7); Said stage apparatus (7) comprises rotation platform on (71), said rotation platform (71) and the said intermediate supports whirligig (73) of basic platform (75) down gone up of basic platform (75), and connection down;
Said propulsion system (5) are installed on said basic platform (75) down, connect and drive the said rotation platform (71) of going up to rotate;
Said curve simulation pilot system also comprises angle detection device (8), device for measuring force (9) and speed detector (6), wherein,
Said angle detection device (8) is installed on said intermediate supports whirligig (73), is used to gather the deflection angle value that said intermediate supports whirligig (73) produces deflection angle;
Said device for measuring force (9) is installed on said propulsion system (5), is used to gather said propulsion system (5) and drives the said employed force value of rotation platform (71) the said deflection angle of generation that goes up;
Said speed detector (6) is installed on the said rotation platform (71) of going up, and is used for gathering the said rotational speed value that goes up rotation platform (71) rotary course;
Said angle detection device (8), said device for measuring force (9) and said speed detector (6) all connect said host computer (1).
2. curve simulation pilot system according to claim 1 is characterized in that,
Said intermediate supports whirligig (73) comprises a turntable bearing (731);
Said upward rotation platform (71) is that the axle center rotates said deflection angle with said turntable bearing (731).
3. curve simulation pilot system according to claim 2 is characterized in that,
Said angle detection device (8) comprises an angular transducer (81);
Said angular transducer (81) is installed on said turntable bearing (731), and is used to gather the said deflection angle of said turntable bearing (731) rotation.
4. curve simulation pilot system according to claim 3 is characterized in that,
Said propulsion system (5) are hydraulic means;
Said propulsion system (5) comprise first oil cylinder (51) and second oil cylinder (53) that is fixedly installed in said following basic platform (75) symmetrically;
Said first oil cylinder (51) and said second oil cylinder (53) drive said rotation platform (71) rotation of going up respectively simultaneously.
5. curve simulation pilot system according to claim 4 is characterized in that,
First oil cylinder seat (511) of said first oil cylinder (51) is fixedly installed in said first end of basic platform (75) down, and the first cylinder bar (513) of said first oil cylinder (51) is connected in said first side that goes up rotation platform (71);
Second oil cylinder seat (531) of said second oil cylinder (53) is fixedly installed in said second end symmetrical with said first end of basic platform (75) down, and the second cylinder bar (533) of said second oil cylinder (53) is connected in said second side symmetrical with said first side that goes up rotation platform (71).
6. curve simulation pilot system according to claim 4 is characterized in that,
Said propulsion system also comprise a proportioning valve (55), and said proportioning valve (55) connects said first oil cylinder (51) and said second oil cylinder (53) respectively, and said proportioning valve (55) is used to control the flow of said first oil cylinder (51) and said second oil cylinder (53).
7. curve simulation pilot system according to claim 5 is characterized in that,
Said device for measuring force (9) comprises first force cell (91) and second force cell (93);
Said first force cell (91) and second force cell (93) are installed on said first oil cylinder (51) and said second oil cylinder (53) respectively;
Said first force cell (91) and said second force cell (93) are gathered said first oil cylinder (51) and said second oil cylinder (53) respectively simultaneously and are driven said first acting force and second acting force that produces when going up the said deflection angle of rotation platform (71) rotation.
8. curve simulation pilot system according to claim 7 is characterized in that,
Said first force cell (91) and said second force cell (93) are connected with said host computer (1) through first amplifier (95) and second amplifier (97) respectively.
9. curve simulation pilot system according to claim 1 is characterized in that,
Said stage apparatus (7) also comprises symmetrically arranged anchoring device (77);
Said anchoring device (77) comprises holder (771) and movable axis (773);
Said holder (771) is fixedly set in said basic platform (75) down;
Said movable axis (773) is arranged at the said rotation platform (71) of going up axially and movably, and said movable axis (773) and said holder (771) over against.
10. curve simulation pilot system according to claim 1 is characterized in that,
Said stage apparatus (7) also comprises symmetrically arranged auxiliary supports (79), and said auxiliary supports (79) is installed on said bottom surface of going up rotation platform (71), and said auxiliary supports (79) compresses with said basic platform (75) down.
11. a curve simulation test method is characterized in that, provides claim 1 to 10 any described curve simulation pilot system, said curve simulation test method in turn includes the following steps:
S1; The stage apparatus of said curve simulation pilot system (7) zero load; The propulsion system of said curve simulation pilot system (5) drive the last rotation platform (71) of said stage apparatus (7) according to the angle on target rotation of setting according to the target velocity of setting; The said rotation platform (71) of going up rotates in the process of said angle on target, the no-load curve figure when host computer (1) generates said stage apparatus (7) zero load;
S2; Said stage apparatus (7) is added with load; Said propulsion system (5) are gone up said target velocity that rotation platform (71) sets when unloaded and are driven said said angle on target rotation when going up rotation platform (71) according to zero load according to said; The said rotation platform (71) of going up rotates in the process of said angle on target, the load curve figure when said host computer (1) generates said stage apparatus (7) and is added with said load;
S3, said load curve figure deduct the load curve figure of said no-load curve figure as said load.
12. curve simulation test method according to claim 11; It is characterized in that; In said S1 step; Said propulsion system (5) drive the angle on target rotation of last rotation platform (71) according to setting of said stage apparatus (7) according to the target velocity of setting before, said curve simulation test method also in turn includes the following steps:
From the host computer (1) of said curve simulation pilot system, import the angle on target value that makes that said upward rotation platform (71) rotates said angle on target; Simultaneously, input makes said propulsion system (5) drive the said target speed value of going up rotation platform (71) rotation from said host computer (1);
Said host computer (1) generates rotation control signal according to said angle on target value and said target speed value, and said rotation control signal is sent to control device (3);
Said control device (3) sends control information according to said rotation control signal and gives propulsion system (5);
Said propulsion system (5) drive the said rotation platform (71) of going up according to said control information with said target velocity and rotate to said angle on target.
13. curve simulation test method according to claim 12; It is characterized in that; In said S1 step; When the said rotation platform (71) of going up rotates in the process of said angle on target, the angle detection device of said curve simulation pilot system (8), device for measuring force (9) and speed detector (6) carry out following steps respectively simultaneously:
Said angle detection device (8) is gathered and saidly to be gone up the said deflection angle value that produces in rotation platform (71) rotary course and said deflection angle value is sent to said host computer (1);
Said device for measuring force (9) is gathered the said rotation platform (71) of going up of said propulsion system (5) driving and is rotated to unloaded force value in the said angle on target process, and said unloaded force value is sent to said host computer (1);
Said speed detector (6) is gathered the said rotation platform (7) of going up and is rotated to the rotational speed value in the said angle on target process, and said rotational speed value is sent to said host computer (1).
14. curve simulation test method according to claim 13; It is characterized in that; After said angle detection device (8) and said device for measuring force (9) sent to said host computer (1) with said deflection angle value and said unloaded force value respectively, said host computer (1) carried out following steps successively:
Said host computer (1) obtains the said unloaded torsional forces of rotation platform (71) under said unloaded force value of going up according to said unloaded force value;
Said host computer (1) generates the said no-load curve figure of said unloaded torsional forces and said deflection angle value according to said unloaded torsional forces and said deflection angle value.
15. curve simulation test method according to claim 13 is characterized in that, after said speed detector (6) sent to said host computer (1) with said rotational speed value, said host computer (1) carried out following steps:
Said host computer (1) obtains said target speed value according to said rotational speed value.
16. curve simulation test method according to claim 11; It is characterized in that; In said S2 step; Before said angle on target rotation when said propulsion system (5) are gone up rotation platform (71) according to zero load according to the said target velocity driving of setting is said, said curve simulation test method also in turn includes the following steps:
The feasible said angle on target value that goes up the said angle on target of rotation platform (71) rotation that said load is installed of input from the host computer (1) of said curve simulation pilot system; Simultaneously, input makes said propulsion system (5) drive the said target speed value of going up rotation platform (71) rotation from said host computer (1);
Said host computer (1) generates rotation control signal according to said angle on target value and said target speed value, and said rotation control signal is sent to control device (3);
Said control device (3) sends control information according to said rotation control signal and gives propulsion system (5);
Said propulsion system (5) drive the said rotation platform (71) of going up according to said control information with said target velocity and rotate to said angle on target.
17. curve simulation test method according to claim 16; It is characterized in that; In said S2 step; The said rotation platform (71) of going up rotates in the process of said angle on target, and the angle detection device of said curve simulation pilot system (8), survey device (9) and speed detector (6) carry out following steps respectively simultaneously:
Said angle detection device (8) is gathered and saidly to be gone up the said deflection angle value that produces in rotation platform (71) rotary course and said deflection angle value is sent to said host computer (1);
Said device for measuring force (9) is gathered said propulsion system (5) drive installation has the said rotation platform (71) of going up of said load to rotate to load force value in the said angle on target process, and said load force value is sent to said host computer (1);
Said speed detector (6) is gathered the said rotation platform (7) of going up and is rotated to the rotational speed value in the said angle on target process, and said rotational speed value is sent to said host computer (1).
18. curve simulation test method according to claim 17; It is characterized in that; After said angle detection device (8) and said device for measuring force (9) sent to said host computer (1) with said deflection angle value and said unloaded force value respectively, said host computer (1) carried out following steps successively:
Said host computer (1) obtains being equipped with the said load torque power of rotation platform (71) under said load force value that goes up of said load according to said load force value;
Said host computer (1) generates the said load curve figure of said load torque power and said deflection angle value according to said load torque power and said deflection angle value.
19. curve simulation test method according to claim 17 is characterized in that, after said speed detector (6) sent to said host computer (1) with said rotational speed value, said host computer (1) carried out following steps:
Said host computer (1) obtains said target speed value according to said rotational speed value.
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