CN104899399A - Design method of electromagnet for repeatable electromagnetic locking device - Google Patents
Design method of electromagnet for repeatable electromagnetic locking device Download PDFInfo
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Abstract
The invention discloses a design method of an electromagnet for a repeatable electromagnetic locking device. The design method comprises the steps of utilizing finite element software ANSYS to respectively establish a parameterized model for executing locking in an electromagnet unlocking state, a parameterized model for executing unlocking in an electromagnet locking state, a parameterized model for keeping locking in the electromagnet locking state and a parameterized model for keeping unlocking in the electromagnet unlocking state, leading the four parameterized models into multidisciplinary optimization software iSIGHT, setting value ranges of design variables and bounded variables, utilizing an optimization algorithm to calculate the search direction and iterative step length, and obtaining the high-quality electromagnet through multiple-step calculation. The design method utilizes matching of the multidisciplinary optimization software and the finite element software to conduct optimization design on the electromagnet for the repeatable electromagnetic locking device, design time is saved, and design efficiency is improved. All performance of the electromagnet is designed in universal range, further optimization of the electromagnet is further facilitated, and the performance of the electromagnet can be more reasonable.
Description
Technical field
The present invention relates to the preparation field of electromagnetic locking device electromagnet, particularly relate to a kind of method for designing of repeated electromagnetic locking device electromagnet of magnetic levitation inertia actuator.
Background technology
Magnetically levitated flywheel and magnetic suspension control torque gyroscope adopt magnetic suspension bearing supporting, eliminate the rubbing wear that mechanical bearing brings, reduce vibration, improve output torque and control moment precision, are the desirable inertia actuator of spacecraft.There is fierce vibration and impact owing to launching powered phase, for preventing fierce collision occurring between the magnetic levitation stator and rotor of noncontact suspension bearing and impacts and damage, magnetic levitation inertia actuator must adopt locking device, carries out locking confining guard to it.Launch powered phase, by locking device, flywheel is locked; After entering the orbit, also need to remove the original locking relation of rotor, make rotor be in free state and be convenient to suspend.
According to locking and unblock number of times, locking device can be divided into disposable locking device and repeatable locking device.The disposable locking device used at present mainly contains based on carbon fibre composite and aircraft cable locking device, wedge-conical bearing locking device, screw-and-nut locking device.Above three kinds of schemes all adopt priming system to unlock, and reliability is high, but can only use once, is not easy to ground environment test adjustment.By a series of environmental test (swept-sine vibration, random vibration, mechanical shock, centrifugal acceleration, high/low temperature, thermal cycle, ageing etc.), often locking need be needed and unlocks owing to launching front magnetic levitation inertia actuator positive sample product.In addition, when flywheel carries out the work of change rail, also need repeatedly to lock it and unlock.The repeatable locking device used at present mainly contains based on motor-shell fragment-wire rope locking device, based on motor-lever lock device, based on motor-conical surface locking closure locking device and electromagnetic locking device.Number of patent application 200910093150.0 is disclosed based on motor-shell fragment-wire rope locking device; utilize shell fragment as extension mechanism; utilize wire rope as tightening system; by motor forward and backward; order about tightening system extension mechanism is drawn in or unclamps; thus hold tightly or discharge flywheel rotor, realize repeating locking and unlocking of flywheel.Because shell fragment rigidity is lower, cause the locking rigidity of locking device on the low side, cause the vibration displacement launched between powered phase flywheel stator and rotor bigger than normal.In addition, shell fragment, along the distribution of flywheel rotor radial circumference, adds flywheel machine volume and weight.Number of patent application 201010117577.2 is disclosed utilizes motor forward and backward based on motor-lever lock device, and activation lever mechanism is by flywheel rotor locking or release.Adopt lever boosting mechanism, improve coupling mechanism force and locking rigidity.But leverage size is comparatively large, and is positioned over below flywheel rotor, adds the axial dimension of flywheel complete machine, result in the increase of complete machine weight.Number of patent application 201210338347.8 is disclosed based on motor-conical surface locking closure locking device, by motor forward and backward, drives conical surface locking closure compress or unclamp flywheel rotor, achieves repeating locking and unlocking of flywheel.Conical surface locking closure is positioned over stator core shaft radially inner side, reduces flywheel volume and weight, but the constraint area of the conical surface locking closure conical surface is less, and locking constraint rigidity is on the low side, to cause in vibration processes vibration displacement between stator and rotor larger.Electromagnetic locking device disclosed in number of patent application 200810119968.0, is superposed with permanent magnetic field is forward and reverse by the electromagnetism magnetic field controlling electromagnet, increases or reduce the suction of sucker, realizes repeating locking and unlocking of flywheel.During work, generally inside flywheel rotor, place three to four electromagnetic locking devices, the increase of flywheel machine volume weight can not be caused, improve locking rigidity simultaneously.
Electromagnet is as the critical component of electromagnetic locking device, its locking tripping force and unblock residual force determine and perform locking and perform the reliability unlocked, its locking confining force and unblock confining force determine the reliability keeping locking and keep unlocking, so need to carry out detailed design to it.Existing Electromagnetic Design method adopts finite element method or Magnetic Circuit Method to design separately electromagnet indices.The simple efficiency of the method is high, but its design result is often not too reasonable, generally can not get optimal result.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method for designing repeating electromagnetic locking device electromagnet, can overcome the deficiency of existing method for designing, designs the more reasonably electromagnet that can repeat electromagnetic locking device for magnetic levitation inertia actuator.
For solving the problems of the technologies described above, the invention provides a kind of method for designing repeating electromagnetic locking device electromagnet, the method is minimum for target with electromagnet quality, comprises the following steps:
Step 1, setting design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the initial value of coil turn n;
Step 2, adopt FEM-software ANSYS as handling implement, each initial parameter value of the electromagnet utilizing described step 1 to set, Modling model also calculates the result data preserving each model respectively, is specially:
(1) set up electromagnet released state and perform locking finite element model, and the APDL command stream performing this model of locking is saved to unlock file, calculate electromagnet mass M, coil copper factor η, perform locking maximum power dissipation P
lmax, perform locking maximum magnetic flux close B
clmaxwith locking tripping force f
cl, and each data calculated are saved to execution locking result of calculation file;
(2) set up electromagnet locking state and perform unblock finite element model, and the APDL command stream unlocking this model is saved to locking file, calculate electromagnet mass M, coil copper factor η, perform unblock maximum power dissipation P
umax, perform and unlock maximum magnetic flux close B
cumaxwith unblock residual force f
cu, and each data calculated are saved to execution unblock result of calculation file;
(3) set up electromagnet locking state and keep locking finite element model, and keep locking file by keeping the APDL command stream of this model of locking to be saved to, calculate electromagnet mass M, coil copper factor η, keep the close B of locking maximum magnetic flux
klmaxwith locking confining force f
kl, and each data calculated are saved to maintenance locking result of calculation file;
(4) set up electromagnet released state to keep unlocking finite element model, and will the APDL command stream unlocking this model be kept to be saved to maintenance unlock file, calculate electromagnet mass M, coil copper factor η, keep unlocking the close B of maximum magnetic flux
kumaxwith unblock confining force f
ku, and each data calculated are saved to maintenance unblock result of calculation file;
Step 3, by the described unlock file obtained in step 2, locking file, keep locking file, keep unlock file and described execution locking result of calculation file, unlock result of calculation file, keep locking result of calculation file, keep unlocking result of calculation file and import in multidisciplinary optimization software iSIGHT, and set design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the span of coil turn n, set bound variable coil copper factor η, maximum power dissipation P simultaneously
max, the close B of maximum magnetic flux
max, locking tripping force f
cl, unlock residual force f
cu, locking confining force f
klwith unblock confining force f
kurestriction range;
Step 4, the optimized algorithm of multidisciplinary optimization software iSIGHT is utilized to calculate the direction of search and iteration step length, and repeatedly described unlock file, locking file, maintenance locking file and maintenance unlock file importing ANSYS software are carried out electromagnetism calculating to flywheel rotor, export each file corresponding execution locking result of calculation file, unblock result of calculation file simultaneously, keep locking result of calculation file, maintenance unlocks result of calculation file;
Step 5, judges whether optimizing process restrains;
Step 6, does not restrain if optimize, the direction of search calculated according to described optimized algorithm and iteration step length, changes the assignment of design variable, and forwards described step 2 to;
Step 7, if optimize convergence, draws electromagnet optimum quality M
o, namely complete the design process that can repeat electromagnetic locking device electromagnet.
Method of the present invention advantage compared with existing method for designing is: (1) the method designs electromagnet properties within the scope of universe simultaneously, compared with the independent method for designing of existing electromagnet properties, more be conducive to electromagnet to optimize further, make electromagnet performance more reasonable.(2) utilize multidisciplinary optimization software iSIGHT and integrated FEM-software ANSYS to coordinate, be optimized design to electromagnetic locking device electromagnet can be repeated, save design time, improve design efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 for the embodiment of the present invention provide for the cut-open view of magnetic bearing-supported flywheel system;
The structure cut-open view for designed electromagnet that Fig. 2 provides for the embodiment of the present invention;
The method for designing process flow diagram that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on embodiments of the invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to protection scope of the present invention.
The present invention relates to a kind of method for designing of electromagnet, particularly magnetically levitated flywheel, magnetic suspension control torque gyroscopes etc. adopt the method for designing of the repeated electromagnetic locking device electromagnet of the magnetic levitation inertia actuator of magnetic suspension bearing technology, its design philosophy can be used as the design of all kinds of electromagnet, make Electromagnetic Design result more reasonable, the basic process of the method is: utilize FEM-software ANSYS to set up electromagnet released state respectively and perform the parameterized model of locking, electromagnet locking state performs the parameterized model unlocked, electromagnet locking state keeps the parameterized model of locking and electromagnet released state to keep the parameterized model unlocked, and four parameterized models are imported multidisciplinary optimization software iSIGHT, the span of design variable and bound variable is set, optimized algorithm is utilized to calculate the direction of search and iteration step length, electromagnet optimum quality is obtained after multistep calculates.
The method is minimum for optimization aim with electromagnet quality, specifically comprises the following steps:
Step 1, setting design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the initial value of coil turn n;
Step 2, adopt FEM-software ANSYS as handling implement, each initial parameter value of the electromagnet utilizing described step 1 to set, Modling model also calculates the result data preserving each model respectively, is specially:
(1) set up electromagnet released state and perform locking finite element model, and the APDL command stream performing this model of locking is saved to unlock file, this unlock file can be the text of called after cl.txt, calculates electromagnet mass M, coil copper factor η, performs locking maximum power dissipation P
lmax, perform locking maximum magnetic flux close B
clmaxwith locking tripping force f
cl, and each data calculated being saved to execution locking result of calculation file, this execution locking result of calculation file can be the text of called after response_cl.txt;
(2) set up electromagnet locking state and perform unblock finite element model, and the APDL command stream unlocking this model is saved to locking file, this locking file can be the text of called after cu.txt, calculates electromagnet mass M, coil copper factor η, performs unblock maximum power dissipation P
umax, perform and unlock maximum magnetic flux close B
cumaxwith unblock residual force f
cu, and each data calculated being saved to execution unblock result of calculation file, this execution unlocks the text that result of calculation file can be called after response_cu.txt;
(3) set up electromagnet locking state and keep locking finite element model, and keep locking file by keeping the APDL command stream of this model of locking to be saved to, this maintenance locking file can be the text of called after kl.txt, calculates electromagnet mass M, coil copper factor η, keeps the close B of locking maximum magnetic flux
klmaxwith locking confining force f
kl, and each data calculated being saved to maintenance locking result of calculation file, this maintenance locking result of calculation file can be the text of called after response_kl.txt;
(4) set up electromagnet released state to keep unlocking finite element model, and will the APDL command stream unlocking this model be kept to be saved to maintenance unlock file, this maintenance unlock file can be the text of called after ku.txt, calculates electromagnet mass M, coil copper factor η, keeps unlocking the close B of maximum magnetic flux
kumaxwith unblock confining force f
ku, and each data calculated being saved to maintenance unblock result of calculation file, this maintenance unlocks the text that result of calculation file can be called after response_ku.txt;
Step 3, by the described unlock file obtained in step 2, locking file, keep locking file, keep unlock file and described execution locking result of calculation file, unlock result of calculation file, keep locking result of calculation file, keep unlocking result of calculation file and import in multidisciplinary optimization software iSIGHT, and set design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the span of coil turn n, set bound variable coil copper factor η, maximum power dissipation P simultaneously
max, the close B of maximum magnetic flux
max, locking tripping force f
cl, unlock residual force f
cu, locking confining force f
klwith unblock confining force f
kurestriction range;
Step 4, the optimized algorithm of multidisciplinary optimization software iSIGHT is utilized to calculate the direction of search and iteration step length, and repeatedly described unlock file, locking file, maintenance locking file and maintenance unlock file importing ANSYS software are carried out electromagnetism calculating to flywheel rotor, export each file corresponding execution locking result of calculation file, unblock result of calculation file simultaneously, keep locking result of calculation file, maintenance unlocks result of calculation file; Preferably, optimized algorithm adopts: at least Second Order Continuous and at least optimized algorithm that can lead of second order, as adopted seqential quadratic programming optimized algorithm;
Step 5, judges whether optimizing process restrains;
Step 6, does not restrain if optimize, the direction of search calculated according to described optimized algorithm and iteration step length, changes the assignment of design variable, and forwards described step 2 to;
Step 7, if optimize convergence, draws electromagnet optimum quality M
o, namely complete the design process that can repeat electromagnetic locking device electromagnet.
In said method, the restriction range of coil copper factor η is: 55%≤η≤65%;
Maximum power dissipation P
maxfor performing locking maximum power dissipation P
lmaxmaximum power dissipation P is unlocked with execution
umaxmaximal value in both, its restriction range is: P
max≤ 45W;
The close B of maximum magnetic flux
maxfor performing the close B of locking maximum magnetic flux
clmax, perform and unlock maximum magnetic flux close B
cumax, keep locking maximum magnetic flux close B
klmaxthe close B of maximum magnetic flux is unlocked with maintenance
kumaxmaximal value in four, its restriction range is: B
maxthe saturation magnetic induction 1.8T of≤permeability magnetic material;
Locking tripping force f
clrestriction range be: f
cl>=unlock spring force and flywheel rotor weight component sum 20N;
Unlock residual force f
curestriction range be: f
cu≤ 0.5N;
Locking confining force f
klrestriction range be: f
kl>=flywheel rotor vibrating inertia force 200N;
Unlock confining force f
kurestriction range be: f
ku≤ 1N.
The principle of method for designing of the present invention is: utilize the integrated FEM-software ANSYS of multidisciplinary optimization software iSIGHT to be optimized design to electromagnet, with electromagnet mass M for optimization aim, with coil copper factor η, maximum power dissipation P
max, the close B of maximum magnetic flux
max, locking tripping force f
cl, unlock residual force f
cu, locking confining force f
klwith unblock confining force f
kumultidisciplinary requirement, simultaneously as constraint condition, adopts second order to lead optimized algorithm for design variable, is optimized design to electromagnet.
Mathematical optimization models comprises: design variable, feasible zone, bound variable, restriction range, objective function part.
Design variable: electromagnet Optimization Dept. can divide and comprise electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith coil turn n.It is as follows that design variable X is write as vector form,
Feasible zone: the span of design variable, as follows according to the span of requirement of engineering design variable X,
Wherein, l
mand l
plower limit gets 1mm, is because minimum machinable thickness of magnet steel and magnetic guiding loop is 1mm.Especially with the existing level of China, the magnet steel of below thickness 1mm cannot be processed.
Bound variable: comprise coil copper factor η, maximum power dissipation P
max, the close B of maximum magnetic flux
max, locking tripping force f
cl, unlock residual force f
cu, locking confining force f
klwith unblock confining force f
ku.It is as follows that bound variable G is write as vector form,
Bound variable scope: mainly consider from electromagnetics and terms of mechanics.
(1) coil winding is placed in electromagnet U-type groove, relies on epoxide-resin glue to be bonded in electromagnet U-type groove.Performing locking with releasing process, in order to increase electromagnetic force range of control, coil copper factor η should be improved as far as possible.Consider that coil copper factor η is higher, epoxide-resin glue proportion is less, and coil is bonding more insecure, requires that the restriction range of coil copper factor η is, 55%≤η≤65%.
(2) on star, supply voltage is 28 ± 3V, and the maximum loaded current of coil control chip is 1.8A, requires the maximum power dissipation P performing locking and perform releasing process
maxbe not more than 45W.
(3) for preventing electromagnet saturation effects, requiring to perform locking, performing unblock, keeping locking and maintenance to unlock the close B of maximum magnetic flux of magnetic circuit in one of four states
maxbe not more than the saturation magnetic induction 1.8T of electromagnet material.
(4) released state performs in locking process, and coupling mechanism force is larger, performs reliable lock higher, requires locking tripping force f
clshould be not less than and unlock spring force and flywheel rotor weight component sum 20N.
(5) because electromagnet produces suction to sucker all the time, when locking state performs and unlocks, rely on the elastic force unlocking spring to overcome electromagnet suction and unlock, unlocking reliability for improving to perform, reducing as far as possible to unlock residual force f
cu, require to unlock residual force f
cu≤ 0.5N.(6) launch powered phase, rely on electromagnet permanent magnetic field to produce electromagnetic force and mechanism's self-locking maintenance locking, locking confining force f
kllarger, keep reliable lock higher, require locking confining force f
klbe not less than flywheel rotor vibrating inertia force 200N.(7) released state, relies on and unlocks suction (the unblock confining force f that spring force overcomes the generation of electromagnet permanent magnetic field
ku) keep unlocking.Unlock confining force f
kularger, keep unlocking reliability lower, require to unlock confining force f
kumuch smaller than the elastic force unlocking spring, i.e. f
ku≤ 1N.The mathematical notation of bound variable scope is as follows,
Objective function: write as functional form as follows for optimization aim so that electromagnet mass M is minimum,
Electromagnet released state is performed the parameterized model importing multidisciplinary optimization software iSIGHT that the parameterized model of locking, the parameterized model of electromagnet locking state execution unblock, the parameterized model of electromagnet locking state maintenance locking and electromagnet released state keep unblock, and set design variable feasible zone, restriction range and objective function, the optimized algorithm direction of search selecting second order to lead and iteration step length.After some step computings, obtain electromagnet optimum quality M
o.
So far, this can to repeat electromagnetic locking device Electromagnetic Design complete.
Below in conjunction with specific embodiment, method of the present invention is described further.
Design object of the present invention is magnetically levitated flywheel and electromagnetic locking device thereof, and Fig. 1 is the cut-open view of magnetic bearing-supported flywheel system, and Fig. 2 is the cut-open view of electromagnet.In Fig. 1,1 is flywheel rotor, and 2 is protection bearing, and 3 is stator core shaft, and 4 is radial direction magnetic bearing, and 5 is axial magnetic bearing, and 6 is electromagnetic locking device, and 7 is flywheel base.In Fig. 2,61 is electromagnet base, and 62 is coil, and 63 is magnet steel, and 64 is magnetic guiding loop, and 65 is sucker, and 66 is permanent magnetic circuit, and 67 is electromagnetic circuit.
Method for designing of the present invention is minimum for optimization aim with electromagnet quality, and as shown in Figure 3, specific design step is as follows for the process flow diagram of its method for designing:
(1) design variable electromagnet internal diameter r is set
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the initial value of coil turn n.
(2) utilize FEM-software ANSYS to set up electromagnet released state and perform locking finite element model, and preservation performs the APDL command stream text cl.txt of locking model, calculate and maximum power dissipation P is locked in electromagnet mass M, coil copper factor η, execution
lmax, perform locking maximum magnetic flux close B
clmaxwith locking tripping force f
cl, export to and perform locking result of calculation text response_cl.txt.
(3) utilize FEM-software ANSYS to set up electromagnet locking state and perform unblock finite element model, and preserve the APDL command stream text cu.txt performing and separate mode-locking type, calculate and electromagnet mass M, coil copper factor η, execution are unlocked maximum power dissipation P
umax, perform and unlock maximum magnetic flux close B
cumaxwith unblock residual force f
cu, export to and perform unblock result of calculation text response_cu.txt.
(4) utilize FEM-software ANSYS to set up electromagnet locking state and keep locking finite element model, and preservation keeps the APDL command stream text kl.txt of locking model, calculate and the close B of maximum magnetic flux is locked in electromagnet mass M, coil copper factor η, maintenance
klmaxwith locking confining force f
kl, export to and keep locking result of calculation text response_kl.txt.
(5) utilize FEM-software ANSYS to set up electromagnet released state to keep unlocking finite element model, and preserve the APDL command stream text ku.txt keeping separating mode-locking type, calculate and electromagnet mass M, coil copper factor η, maintenance are unlocked the close B of maximum magnetic flux
kumaxwith unblock confining force f
ku, export to and keep unlocking result of calculation text response_ku.txt.
(6) text cl.txt, response_cl.txt, cu.txt, response_cu.txt, kl.txt, response_kl.txt, ku.txt and response_ku.txt are imported in optimization integrated software, and set design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the span of coil turn n, set bound variable coil copper factor η, maximum power dissipation P simultaneously
max, the close B of maximum magnetic flux
max, locking tripping force f
cl, unlock residual force f
cu, locking confining force f
klwith unblock confining force f
kurestriction range.
(7) optimized algorithm is utilized to calculate the direction of search and iteration step length, and repeatedly text cl.txt, cu.txt, kl.txt and ku.txt importing ANSYS software is carried out electromagnetism calculating to flywheel rotor, export text response_cl.txt, response_cu.txt, response_kl.txt and response_ku.txt of its correspondence simultaneously.
(8) judge whether optimizing process restrains.
(9) do not restrain if optimize, the direction of search calculated according to optimized algorithm and iteration step length, change the assignment of design variable, and forward step (2) to.
(10) if optimize convergence, electromagnet optimum quality M is drawn
o, so far, this magnetically levitated flywheel rotor design is complete.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (10)
1. can repeat a method for designing for electromagnetic locking device electromagnet, it is characterized in that: the method is minimum for target with electromagnet quality, comprises the following steps:
Step 1, setting design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the initial value of coil turn n;
Step 2, adopt FEM-software ANSYS as handling implement, each initial parameter value of the electromagnet utilizing described step 1 to set, Modling model also calculates the result data preserving each model respectively, is specially:
(1) set up electromagnet released state and perform locking finite element model, and the APDL command stream of this execution locking model is saved to unlock file, calculate electromagnet mass M, coil copper factor η, perform locking maximum power dissipation P
lmax, perform locking maximum magnetic flux close B
clmaxwith locking tripping force f
cl, and each data calculated are saved to execution locking result of calculation file;
(2) set up electromagnet locking state and perform unblock finite element model, and the APDL command stream unlocking this model is saved to locking file, calculate electromagnet mass M, coil copper factor η, perform unblock maximum power dissipation P
umax, perform and unlock maximum magnetic flux close B
cumaxwith unblock residual force f
cu, and each data calculated are saved to execution unblock result of calculation file;
(3) set up electromagnet locking state and keep locking finite element model, and keep locking file by keeping the APDL command stream of this model of locking to be saved to, calculate electromagnet mass M, coil copper factor η, keep the close B of locking maximum magnetic flux
klmaxwith locking confining force f
kl, and each data calculated are saved to maintenance locking result of calculation file;
(4) set up electromagnet released state to keep unlocking finite element model, and will the APDL command stream unlocking this model be kept to be saved to maintenance unlock file, calculate electromagnet mass M, coil copper factor η, keep unlocking the close B of maximum magnetic flux
kumaxwith unblock confining force f
ku, and each data calculated are saved to maintenance unblock result of calculation file;
Step 3, by the described unlock file obtained in step 2, locking file, keep locking file, keep unlock file and described execution locking result of calculation file, unlock result of calculation file, keep locking result of calculation file, keep unlocking result of calculation file and import in multidisciplinary optimization software iSIGHT, and set design variable electromagnet internal diameter r
ei, electromagnet external diameter r
eo, internal coil diameter r
ci, coil outer diameter r
co, electromagnet length l
e, loop length l
c, magnetic guiding loop length l
m, magnet steel length l
p, sucker length l
swith the span of coil turn n, set bound variable coil copper factor η, maximum power dissipation P simultaneously
max, the close B of maximum magnetic flux
max, locking tripping force f
cl, unlock residual force f
cu, locking confining force f
klwith unblock confining force f
kurestriction range;
Step 4, the optimized algorithm of multidisciplinary optimization software iSIGHT is utilized to calculate the direction of search and iteration step length, and repeatedly described unlock file, locking file, maintenance locking file and maintenance unlock file importing ANSYS software are carried out electromagnetism calculating to flywheel rotor, export each file corresponding execution locking result of calculation file, unblock result of calculation file simultaneously, keep locking result of calculation file, maintenance unlocks result of calculation file;
Step 5, judges whether optimizing process restrains;
Step 6, does not restrain if optimize, the direction of search calculated according to described optimized algorithm and iteration step length, changes the assignment of design variable, and forwards described step 2 to;
Step 7, if optimize convergence, draws electromagnet optimum quality M
o, namely complete the design process that can repeat electromagnetic locking device electromagnet.
2. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, the restriction range of described coil copper factor η is: 55%≤η≤65%.
3. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, described maximum power dissipation P
maxfor performing locking maximum power dissipation P
lmaxmaximum power dissipation P is unlocked with execution
umaxmaximal value in both, its restriction range is: P
max≤ 45W.
4. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, the close B of described maximum magnetic flux
maxfor performing the close B of locking maximum magnetic flux
clmax, perform and unlock maximum magnetic flux close B
cumax, keep locking maximum magnetic flux close B
klmaxthe close B of maximum magnetic flux is unlocked with maintenance
kumaxmaximal value in four, its restriction range is: B
maxthe saturation magnetic induction 1.8T of≤permeability magnetic material.
5. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, described locking tripping force f
clrestriction range be: f
cl>=unlock spring force and flywheel rotor weight component sum 20N.
6. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, described unblock residual force f
curestriction range be: f
cu≤ 0.5N.
7. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, described locking confining force f
klrestriction range be: f
kl>=flywheel rotor vibrating inertia force 200N.
8. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, described unblock confining force f
kurestriction range be: f
ku≤ 1N.
9. the method for designing repeating electromagnetic locking device electromagnet according to claim 1, is characterized in that, the optimized algorithm in described step 4 adopts at least Second Order Continuous and at least optimized algorithm that can lead of second order.
10. the method for designing of the repeated electromagnetic locking device electromagnet according to claim 1 or 9, is characterized in that, the optimized algorithm in described step 4 adopts seqential quadratic programming optimized algorithm.
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