CN105539046B - Vehicle is actively used to appearance formula dynamic absorber suspension - Google Patents
Vehicle is actively used to appearance formula dynamic absorber suspension Download PDFInfo
- Publication number
- CN105539046B CN105539046B CN201610100492.0A CN201610100492A CN105539046B CN 105539046 B CN105539046 B CN 105539046B CN 201610100492 A CN201610100492 A CN 201610100492A CN 105539046 B CN105539046 B CN 105539046B
- Authority
- CN
- China
- Prior art keywords
- suspension
- fixedly connected
- shell
- auxiliary spring
- spring
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
- B60G2202/20—Type of damper
- B60G2202/25—Dynamic damper
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
Actively it is used to appearance formula dynamic absorber suspension the invention discloses a kind of vehicle, including main spring, is actively used to container, auxiliary spring and damper；The upper fulcrum of main spring is connected with vehicle body, and the lower fulcrum of main spring is connected with tire；The upper fulcrum for being actively used to container is connected with vehicle body, is actively used to upper fulcrum of the lower fulcrum of container respectively with auxiliary spring and damper and is connected；The lower fulcrum of auxiliary spring is connected with the lower fulcrum and tire of damper respectively.The vehicle body of the present invention and main spring a pair of vehicle body single-degree of freedom vibration links of formation, a formant is formed about in resonant frequency, simultaneously, actively it is used to container, auxiliary spring and damper and forms a set of active power bump leveller, when the vehicle is running, active power bump leveller produces tunning effect with body vibrations link, effectively cut down the vibration amplitude near resonant frequency, active actuator is exported in real time to be actively used as power, cut down tire vibration energy, suspension vibration damping frequency domain is widened, vehicle riding comfort can be obviously improved.
Description
Technical field
Actively it is used to appearance formula dynamic absorber suspension the present invention relates to a kind of vehicle suspension, more particularly to a kind of vehicle.
Background technology
For vehicle suspension, dynamic vibration absorber can be used for the amplitude reduced near spring load or non-spring load resonant frequency to increase
Benefit, improves significantly to vehicle body acceleration and tyre dynamic load lotus index respectively.But this method needs larger additional mass,
It is relatively difficult to achieve in engineering, therefore limit its application on suspension.Used container can realize big mass body with less quality
Dynamic characteristics, make light power absorbing suspension be possibly realized.But as two end element, used container is introduced from tire
Vibrational energy, causes passively to be used to that appearance formula dynamic absorber suspension vibration damping frequency range is narrower, and the raising to riding comfort is limited.
The content of the invention
Present invention aim to address passively used appearance formula dynamic absorber suspension vibration damping frequency range is narrower at present, to riding comfort
The limited technical problem of raising.
To realize above goal of the invention, the present invention provides a kind of vehicle and is actively used to appearance formula dynamic absorber suspension, including main bullet
Spring, actively it is used to container, auxiliary spring and damper；
The upper fulcrum of the main spring is connected with vehicle body, and the lower fulcrum of the main spring is connected with tire；
The container of being actively used to includes motor, flywheel group, bearing, suspension upper bracket, ball screw, used shell of tank, spiral shell
Female assembly and slide key；The auxiliary spring includes upper auxiliary spring and lower auxiliary spring；The damper includes its shell, oil sealing
Assembly, piston rod, piston assembly and fixed seat；
The suspension upper bracket is connected with flexible chassis；The output shaft of the motor and the flywheel group and the ball
The upper end of screw mandrel is fixedly connected, and the shell of the motor is fixedly connected with the suspension upper bracket, the ball screw with it is described
Bearing inner race is fixed, and the bearing outer ring is fixed with the suspension upper bracket, the suspension upper bracket and the used shell of tank
It is fixedly and coaxially connected, the used shell of tank and its shell coaxially slide, the upper end of the main spring hang with described
Frame upper bracket is connected, and the lower end of the main spring is connected by spring holder with its shell；
The nut assembly periphery is fixedly connected with the slide key, the nut assembly lower end and the upper auxiliary spring
Upper end is fixed, and the nut assembly lower end is fixedly connected with the piston rod of the damper；
The oil seal assembly of the damper is fixedly connected with its shell, the lower end of the upper auxiliary spring with it is described
The upper end of the oil seal assembly of damper is fixedly connected, and the upper end of the lower auxiliary spring is fixed with the lower end of the oil seal assembly to be connected
Connect, the piston assembly is fixedly connected with the piston rod, the lower end of the lower auxiliary spring is consolidated with the upper end of the piston assembly
Fixed connection, the fixed seat of the damper is fixedly connected with its shell, and the fixed seat is fixedly connected with tire.
Further, the piston rod is hollow, and the ball screw can be moved in the piston rod cavity.
Compared with prior art, the beneficial effects of the invention are as follows：
The present invention combines dynamic absorber technology and used container principle, proposes that vehicle is actively used to appearance formula dynamic absorber suspension, car
Body and main spring a pair of vehicle body single-degree of freedom vibration links of formation, a formant is formed about in resonant frequency, meanwhile, actively
Used container, auxiliary spring and damper form a set of dynamic vibration absorber, when the vehicle is running, dynamic vibration absorber and body vibrations link
Tunning effect is produced, the vibration amplitude near resonant frequency is effectively cut down, being actively used to container, output adds with vehicle body or tire in real time
The inversely proportional active of speed is used as power, and cuts down tire vibration energy, widens suspension vibration damping frequency domain, can be obviously improved vehicle comfortable
Property；In addition, the calculating that active of the present invention is used as power only needs to directly use single acceleration signal, with stronger robust
Property and real-time.
Brief description of the drawings
Fig. 1 is the principle schematic diagram of the present invention；
Fig. 2 is the principle schematic diagram for being actively used to container in Fig. 1；
Fig. 3 is the control principle block diagram of suspension shown in Fig. 1；
Fig. 4 is the scheme of installation of one embodiment of the invention；
Fig. 5 is the structural representation of one embodiment of the invention.
In figure, 1- vehicle bodies, 2- main springs, 3- tires, 4- is actively used to container, 41- motors, 42- flywheel groups, 43- bearings,
44- suspension upper brackets, 45- ball screws, 46- is used on shell of tank, 47- nut assemblies, 48- slide keys, 5- auxiliary springs, 51-
Auxiliary spring under auxiliary spring, 52-, 6- dampers, 61- its shells, 62- oil seal assemblies, 63- piston rods, 64- piston assemblies,
65- fixed seats, 7- acceleration transducers, 8- controllers.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the vehicle of the present invention is actively used to appearance formula dynamic absorber suspension, including main spring 2, be actively used to container 4,
Auxiliary spring 5, damper 6.The upper fulcrum of main spring 2 is connected with vehicle body 1, and lower fulcrum is connected with tire 3；Actively it is used to the upper of container 4
Fulcrum is connected with vehicle body 1, and upper fulcrum of the lower fulcrum respectively with auxiliary spring 5 and damper 6 is connected；The lower fulcrum difference of auxiliary spring 5
It is connected with the lower fulcrum and tire 3 of damper 6.I.e. auxiliary spring 5 is in parallel with damper 6, is then connected with being actively used to container 4, makees
It is in parallel with main spring 2 for an entirety.Vehicle body 1 and a pair of the vehicle body single-degree of freedom vibration links of formation of main spring 2, in resonant frequency
A formant is formed about, is actively used to container 4, auxiliary spring 5, damper 6 and forms a set of dynamic vibration absorber.When vehicle traveling
When, dynamic vibration absorber produces tunning effect with body vibrations link, effectively cuts down the vibration amplitude near resonant frequency.
As shown in Figures 2 and 3, being actively used to container 4 includes a used container（Or passively it is used to container）With an active start
Device, both are in parallel.Actively it is used to total power output of containerF Ab=F A+F b, whereinF bIt is the uncontrollable inertia force that used container is produced,F A
It is that the controllable active that active actuator is produced is used as power.The power output of used container is proportional to two ends relative acceleration, i.e.,.B holds coefficient to be used in formula,x b、x sRespectively actively it is used to the displacement of container upper and lower side.Due under used container
End is that the vibration from nonspring carried mass introduces vehicle body, and it is narrower to cause passively to be used to appearance formula dynamic absorber suspension vibration damping frequency range, in order to subtract
The influence of few nonspring carried mass acceleration, makes the active actuator in parallel with used container produce and vehicle body acceleration or wheel acceleration
Inversely proportional balancing force, the influence of nonspring carried mass acceleration can be reduced to a certain extent, i.e.,Or, the total power output for being so actively used to container isOr, influence of the nonspring carried mass acceleration to total power output effectively reduced.
Specifically, as illustrated in figures 4-5, suspension upper bracket 44 and the elastic connection of vehicle body 1.The output shaft of motor 41 and flywheel group 42
And the upper end of ball screw 45 is fixedly connected, the shell of motor 41 is fixedly connected with suspension upper bracket 44.Ball screw 45 and bearing
43 inner rings are fixed, and the outer ring of bearing 43 is fixed with suspension upper bracket 44, and ball screw 45 can be rotated coaxially with suspension upper bracket 44.It is outstanding
Frame upper bracket 44 is fixedly and coaxially connected with used shell of tank 46.Used shell of tank 46 and the coaxially slide of its shell 61, bear
Side force suffered by suspension.The upper end of main spring 2 is connected with suspension upper bracket 44, and the lower end of main spring 2 passes through spring holder and resistance
Buddhist nun's device shell 61 is connected.
Nut assembly 47 and the formation screw pair of ball screw 45.The periphery of nut assembly 47 is fixed with slide key 48 to be connected
Connect, the lower end of nut assembly 47 and the upper end of upper auxiliary spring 51 are fixed, the lower end of nut assembly 47 and the piston rod 63 of damper 6 are fixed
Connection.Piston rod 63 is hollow, and ball screw 45 can be moved in the inner chamber of piston rod 63.
The oil seal assembly 62 of damper 6 is fixedly connected with its shell 61, slide key 48 and the inner chamber of its shell 61
Keyway formation sliding pair.The lower end of upper auxiliary spring 51 is fixedly connected with the upper end of oil seal assembly 62 of damper 6, lower auxiliary spring 52
Upper end be fixedly connected with the lower end of oil seal assembly 62.Piston assembly 64 is fixedly connected with piston rod 63, under lower auxiliary spring 52
End is fixedly connected with the upper end of piston assembly 64.The fixed seat 65 of damper 6 is fixedly connected with its shell 61, fixed seat 65
It is fixedly connected with tire 3.
When the vehicle is still, main spring 5 bears the gravity of vehicle body 1, makes vehicle body 1 be maintained at certain altitude.When vehicle traveling
When, its shell 61 by spring holder drive main spring 2 move up and down, between vehicle body and tire formed with relative displacement into
The elastic acting force of direct ratio.
When the vehicle is running, the fixed seat 65 of the shuttle belt fluctuation dampers 6 from tire moves up and down.The work of damper 6
Stopper rod 63 drives piston assembly 64 to move up and down, the fluid in damper by the damping hole on piston 64, piston rod 63 with
The damping action power being directly proportional to relative velocity is formed between its shell 61.
When the vehicle is still, upper auxiliary spring 51 and lower auxiliary spring 52 produce deboost, make piston rod 63 rest on damping
The centre position of device 6.When the piston rod 63 of damper 6 is with 61 relative motion of its shell, upper auxiliary spring 51 and lower secondary bullet
Spring 52 forms the elastic force of change between piston rod 63 and its shell 61, and synthesis is presented as that auxiliary spring 5 is acted on, i.e., in work
The elastic acting force being directly proportional to relative displacement is formed between stopper rod 63 and its shell 61.
Piston rod 63 drives nut assembly 47 to move up and down, and slide key 48 prevents nut assembly 47 around 61 turns of its shell
It is dynamic.Nut assembly 47 drives ball screw 45 to rotate, and the rotor of the flywheel driven group 42 of ball screw 45 and motor 41 is rotated, flywheel
The effect of inertia of group 42 is produced with relative acceleration into just on ball screw 45 between ball screw 45 and nut assembly 47
The inertial force of ratioF b。
Vehicle body or tyre accelerations signal are gathered by acceleration transducer 7, input controller 8, controller 8 is calculated and obtained
The target active torque value of motor, electric current is applied to motor 41, and required active is produced between the rotor and shell that make motor 41
Torque, active torque is applied on ball screw 45 by the output shaft of motor 41, between ball screw 45 and nut assembly 47
Active corresponding with control targe is produced to be used as powerF A。
If motor 41 applies torque（In formulaPFor the helical pitch of ball screw 45,x sFor vehicle body position
Move）, then the power output for being actively used to container is：
（In formulaJFor flywheel group 42
Total rotary inertia,）, i.e., vehicle body acceleration compensation effect is reached by the output torque of controlled motor 41
Really.
If motor 41 applies torque, then the power output for being actively used to container is：
, i.e., exported by controlled motor 41
Torque reaches wheel acceleration compensation effect.
Define the mass of vehicle body 1M s, the mass of tire 3M u, the rigidity of tire 3K t, be actively used to that container 4 is used to hold coefficientb, actively used hold
The active of device 4 is used as powerF A, the rigidity of auxiliary spring 5k, the damped coefficient of damper 6c, pavement displacementq, the displacement of tire 3x u, be actively used to container
4 lower fulcrum displacementsx b, the displacement of vehicle body 1x s。
Vehicle body acceleration, wheel movement of the foetus displacement, suspension are moved to the root-mean-square value of strokeσ acc 、σ tires 、σ travel Divided by tradition is outstanding
The corresponding index of frame, obtains normalizing target, then each target is multiplied by into corresponding weight coefficient, definition optimization formula.
In formula：
To improve vehicle body acceleration as main target, weight coefficient is taken as respectively in formulaα=0.5、β=0.35、γ=0.15,
The optimized parameter group of actively and passively suspension is calculated respectively, and calculating 20m/s speeds with optimized parameter group passes through B grades of road surfaces
Flexibility index vibratory response root-mean-square value, compare understand：It is actively used to hold suspension compared to uncompensated passive used appearance suspension
Having in terms of vehicle body acceleration and suspension move stroke largely improves, then slightly not enough in terms of wheel movement of the foetus displacement；Compared to biography
Uniting, then advantage becomes apparent passive suspension in terms of vehicle body acceleration and suspension move stroke.
Following table is the comparing result for being actively used to appearance formula dynamic absorber suspension and other two kinds of form suspensions of the invention, it was demonstrated that
The present invention's is actively used to appearance formula dynamic absorber suspension and can be obviously improved vehicle riding comfort.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (2)
1. vehicle is actively used to appearance formula dynamic absorber suspension, it is characterised in that including main spring, be actively used to container, auxiliary spring and resistance
Buddhist nun's device；
The upper fulcrum of the main spring is connected with vehicle body, and the lower fulcrum of the main spring is connected with tire；
It is described that to be actively used to container total including motor, flywheel group, bearing, suspension upper bracket, ball screw, used shell of tank, nut
Into and slide key；The auxiliary spring includes upper auxiliary spring and lower auxiliary spring；It is total that the damper includes its shell, oil sealing
Into, piston rod, piston assembly and fixed seat；
The suspension upper bracket is connected with flexible chassis；The output shaft of the motor and the flywheel group and the ball screw
Upper end be fixedly connected, the shell of the motor is fixedly connected with the suspension upper bracket, the ball screw and the bearing
Inner ring is fixed, and the bearing outer ring is fixed with the suspension upper bracket, and the suspension upper bracket and the used shell of tank are coaxial
It is fixedly connected, the used shell of tank and its shell coaxially slide, on the upper end of the main spring and the suspension
Bearing is connected, and the lower end of the main spring is connected by spring holder with its shell；
The nut assembly periphery is fixedly connected with the slide key, the nut assembly lower end and the upper end of the upper auxiliary spring
Fixed, the nut assembly lower end is fixedly connected with the piston rod of the damper；
The oil seal assembly of the damper is fixedly connected with its shell, the lower end of the upper auxiliary spring and the damping
The upper end of the oil seal assembly of device is fixedly connected, and the upper end of the lower auxiliary spring is fixedly connected with the lower end of the oil seal assembly, institute
State piston assembly to be fixedly connected with the piston rod, the lower end of the lower auxiliary spring is fixed with the upper end of the piston assembly to be connected
Connect, the fixed seat of the damper is fixedly connected with its shell, the fixed seat is fixedly connected with tire.
2. vehicle as claimed in claim 1 is actively used to appearance formula dynamic absorber suspension, it is characterised in that the piston rod is hollow,
The ball screw can be moved in the piston rod cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100492.0A CN105539046B (en) | 2016-02-24 | 2016-02-24 | Vehicle is actively used to appearance formula dynamic absorber suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610100492.0A CN105539046B (en) | 2016-02-24 | 2016-02-24 | Vehicle is actively used to appearance formula dynamic absorber suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105539046A CN105539046A (en) | 2016-05-04 |
| CN105539046B true CN105539046B (en) | 2017-09-22 |
Family
ID=55818786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610100492.0A Active CN105539046B (en) | 2016-02-24 | 2016-02-24 | Vehicle is actively used to appearance formula dynamic absorber suspension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105539046B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105966474B (en) * | 2016-05-19 | 2018-09-04 | 大连理工大学 | A kind of quarry tipper railway carriage active damping support system and its design method |
| CN109080401B (en) * | 2018-07-06 | 2021-11-23 | 江苏大学 | Hub motor vibration absorption system and working method thereof |
| CN112413034B (en) * | 2019-08-23 | 2022-06-14 | 上海汽车集团股份有限公司 | Vehicle and vibration damping assembly |
| CN111016566B (en) * | 2019-12-05 | 2023-07-18 | 江苏大学 | Inertial-energy and damping double-ceiling suspension system and control method thereof |
| CN111923679B (en) * | 2020-07-27 | 2022-03-18 | 江苏大学 | Stability switching theory-based PID time-lag switching compensation control method for vehicle ISD semi-active suspension |
| CN112855824A (en) * | 2021-03-11 | 2021-05-28 | 中国北方车辆研究所 | Inertial volume type vibration isolation device aiming at simple harmonic displacement excitation and design method |
| CN114321249B (en) * | 2022-01-14 | 2022-11-29 | 华南农业大学 | Three-dimensional spiral unit with inertial volume effect, mechanical metamaterial and application of three-dimensional spiral unit |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5481469A (en) * | 1977-12-13 | 1979-06-28 | Sanwa Tekki Corp | Friction brake type vibration isolator |
| US4126302A (en) * | 1978-01-20 | 1978-11-21 | Curnutt Charles R | Horizontal inertia-responsive shock absorber |
| CN103303085A (en) * | 2013-06-14 | 2013-09-18 | 江苏大学 | Vehicle passive suspension structure employing inertial container |
| CN105003591A (en) * | 2015-05-29 | 2015-10-28 | 石家庄铁道大学 | Inerter capable of adjusting inertance coefficient |
| CN205553849U (en) * | 2016-02-24 | 2016-09-07 | 浙江大学台州研究院 | Formula dynamic vibration absorber suspension is used to hold in vehicle initiative |
-
2016
- 2016-02-24 CN CN201610100492.0A patent/CN105539046B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105539046A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105539046B (en) | Vehicle is actively used to appearance formula dynamic absorber suspension | |
| US10457108B2 (en) | Non-linear stiffness actuator for vehicle suspension | |
| CN102494071B (en) | Passive vibration isolation system for dampers of ceilings and sheds | |
| CN104455199B (en) | Reverse accurate zero stiffness vibration isolator | |
| KR101563448B1 (en) | Vehicle | |
| CN101220845B (en) | Engine vibration isolation system based on combined suspension and its control method | |
| US10328762B2 (en) | Electric damper for vehicle | |
| CN105172511B (en) | A kind of shock absorber of automobile suspension control system and method | |
| CN205553849U (en) | Formula dynamic vibration absorber suspension is used to hold in vehicle initiative | |
| WO2018016540A1 (en) | Suspension apparatus and vehicle equipped with same | |
| US11001119B2 (en) | Vehicle shock absorber | |
| CN105814336A (en) | Pendulum torsion damping device with improved effectiveness of filtration | |
| JP5598233B2 (en) | Suspension device | |
| CN112287483B (en) | Parameter design method of centrifugal pendulum vibration absorber | |
| JP5477262B2 (en) | Suspension device | |
| Novikov et al. | Analysis of the current state of research in the field of improving the smooth ride of vehicles equipped with suspension | |
| Vaishnav et al. | Mathematical modelling and comparison of two degree of freedom suspension system of quarter car | |
| US9643465B2 (en) | Anti-skate device for applying damping torque to an axle | |
| JP6187513B2 (en) | vehicle | |
| Gu et al. | A Novel E‐DVA Module Synthesis Featuring of Synergy between Driving and Vibration Attenuation | |
| JP2013154821A (en) | Vehicle suspension system | |
| Ryabov et al. | Comparative evaluation of the vibration isolation properties of a suspension with different flywheel dynamical absorbers of the car body oscillations | |
| RU2654877C1 (en) | Method of dynamic damping of oscillations of the traction engine of locomotive and device for its implementation | |
| CN201982474U (en) | Vertical single-cylinder motorcycle engine crankshaft capable of reducing vibration | |
| WO2019202542A1 (en) | Engine vibration absorber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191112 Address after: 317200 No.28, Qinghua Road, Xiage village, Sanhe Town, Tiantai County, Taizhou City, Zhejiang Province Patentee after: Zhou Ting Address before: Truman town Yuhuan County Taizhou city Zhejiang province 317605 Hu Xing Industrial Park (Wu Jiaduan) Chu Chau talent dream factory Patentee before: Research Institute of Zhejiang University-Taizhou |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200119 Address after: 317605 Chuzhou talent dream factory, Huxing Industrial Park, Chumen Town, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Research Institute of Zhejiang University-Taizhou Address before: 317200 No.28, Qinghua Road, Xiage village, Sanhe Town, Tiantai County, Taizhou City, Zhejiang Province Patentee before: Zhou Ting |