CN106991220A - Minitype vehicle based on ANSYS transports the model building method of job platform - Google Patents
Minitype vehicle based on ANSYS transports the model building method of job platform Download PDFInfo
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- CN106991220A CN106991220A CN201710178770.9A CN201710178770A CN106991220A CN 106991220 A CN106991220 A CN 106991220A CN 201710178770 A CN201710178770 A CN 201710178770A CN 106991220 A CN106991220 A CN 106991220A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention discloses the model building method that a kind of Minitype vehicle based on ANSYS transports job platform, the Minitype vehicle based on ANSYS transports transhipment job platform of the model building method of job platform using motor as driving to meet demand of the market to vehicle-mounted transhipment job platform variation, fast leveling positioning instantly;Targetedly the good Minitype vehicle transhipment job platform of practical combination property, both with chassis function, is used but also as stabilized platform.The present invention transports job platform for existing hydraulic system, and it is fixed than transmission and easily affected by environment to be difficult to during leveling, breaks down and the factor such as is difficult to check and excludes;Transhipment job platform using motor as driving with meet instantly market to vehicle-mounted transhipment job platform variation, the demand of fast leveling.
Description
Technical field
The invention belongs to vehicle-mounted transhipment job platform technical field, more particularly to a kind of minicar idling based on ANSYS
Transport the model building method of job platform.
Background technology
With the fast development of special purpose vehicle technology, the demand that Minitype vehicle transports job platform performance increased.
Existing transhipment job platform is generally hydraulic system operation, and it is difficult to fixed than transmission during leveling, it is contemplated that hydraulic part
The accuracy of manufacture and matching requirements are high, and easily affected by environment, break down and the factor such as are difficult to check and exclude.
In summary, it is existing it is vehicle-mounted transhipment job platform exist poor mobility, leveling time length, operating environment requirement height,
The problems such as auxiliary equipment is more.
The content of the invention
It is an object of the invention to provide the model construction side that a kind of Minitype vehicle based on ANSYS transports job platform
Method, it is intended to solve that existing vehicle-mounted transhipment job platform has poor mobility, leveling time length, operating environment requirement is high, aid in setting
Standby the problem of.
The present invention is achieved in that a kind of Minitype vehicle based on ANSYS transports the model building method of job platform,
The model building method of the Minitype vehicle transhipment job platform based on ANSYS includes:
Step one, FEM model is set up;
Step 2, the setting of operating mode boundary condition and finite element Static Strength Analysis;
Step 3, vehicle-mounted transhipment job platform model analysis;
Step 4, vehicle-mounted transhipment job platform optimization analysis.
Further, the step one is specifically included:
(1) three-dimensional modeling is carried out to transhipment job platform using solid works softwares, correlated performance design parameter is such as
Under;
1. Minitype vehicle transhipment job platform load-carrying is about 2t, long 3m, wide 1.2m;
2. transhipment job platform lifting range is 300mm, and lifting time is less than 4 minutes;
3. supporting leg and platform assembly material are mainly Q235;
Drive part selects model SJA200 spiral lifting motor;It is firm that the outer lead of lifting landing leg assembly improves supporting leg
Degree;Platform suspension system temporarily uses rubber mounting;
(2) finite element analysis model
Omit vehicle bridge and fuel tank annex;Using ANSYS to its just hexahedral mesh divide, 162014 nodes altogether,
67147 units.
Further, the step 2 is specifically included:
(1) its static operating mode is set as transfer and two kinds of operating modes of vehicular platform leveling to carry out Static Strength Analysis, loading
Automobile parameter:Quality 2t;The rigidity of supporting leg changes with the change of support column and lead registration;Multiply additional loading mass
COEFFICIENT K=1.1~1.3, reference load and SJA200 spiral lifts selected by the stroke curve of stability;
(2) finite element analysis of the vehicular platform during road traveling, simulates vehicle-mounted transhipment job platform full load and exists
The occurred stress distribution of good road surface traveling and deformation;Vehicle-mounted job platform is when good road surface is travelled, boundary condition
Setting is as follows, sets cylinder to constrain in vehicle bridge and saddle contact position, discharges vehicle frame pitch freedom, constrains its radial and axial certainly
By spending;During loading, it is considered to which vehicle frame is conducted oneself with dignity, apply vertical acceleration of gravity, vehicle frame is carried as 20000N, be applied in the middle part of vehicle frame and hold
Carry area;Maximum stress occurs in lifting leg and vehicle frame joining place;
(3) finite element analysis during vehicular platform leveling, in h=300mm, the maximum stress value of platform is
15.586Mpa, less than the yield limit of material, meets static strength requirement.
Further, the step 3 is specifically included:Structure is set to avoid resonating or being vibrated by specific frequency;Solution structure
Response to different types of dynamic load(loading);Estimation solves control parameter in other dynamic analyses;
Boundary condition imitation real working condition in prestressed modal analysis, vehicle frame prestressed modal analysis, solves vehicle frame
Dynamic property under specific operating mode;Structure by eigenfrequncies and vibration models directly to vehicle frame is evaluated.
Further, the step 4 is specifically included:
(1) finite element of the vehicular platform during road traveling is analyzed again, and simulation trailer-mounted radar transhipment job platform is expired
In the occurred stress distribution of good road surface traveling and deformation during load;
(2) prestressed modal analysis after vehicular platform optimization, by ANSYS Workbench solution.
Minitype vehicle transhipment job platform based on ANSYS, it is characterised in that the minicar idling based on ANSYS
Fortune job platform includes:
Another object of the present invention is to provide a kind of mould that job platform is transported by the Minitype vehicle based on ANSYS
The Minitype vehicle transhipment job platform that type construction method is built.
The Minitype vehicle based on ANSYS that the present invention is provided transports the model building method of job platform, using motor as
The transhipment job platform of driving is to meet the demand of market instantly to vehicle-mounted transhipment job platform variation, fast leveling positioning;
Targetedly the good Minitype vehicle of practical combination property transports job platform, both with chassis function, but also as steady
Determine workbench to use.The present invention transports job platform for existing hydraulic system, and it is fixed than passing to be difficult to during leveling
It is dynamic and easily affected by environment, break down and the factor such as be difficult to check and exclude;Transhipment job platform using motor as driving with
Meet instantly market to it is vehicle-mounted transhipment job platform variation, fast leveling demand.And use ANSYS Workbench softwares
Analysis is totally optimized to transhipment job platform, the stress of different operating mode lower platforms, strain variation situation and in advance has been obtained
Stress mode relevant parameter, and result data is analyzed and optimized.As a result show that the transhipment job platform of design is quiet dynamic
Step response meets design requirement, while this early development research also to transport job platform provides foundation.
Brief description of the drawings
Fig. 1 is the model building method that the Minitype vehicle provided in an embodiment of the present invention based on ANSYS transports job platform
Flow chart.
Fig. 2 is transferring platform overall diagram provided in an embodiment of the present invention.
Fig. 3 is lifting landing leg assembly schematic diagram provided in an embodiment of the present invention.
Fig. 4 is Minitype vehicle transhipment job platform assembly schematic diagram provided in an embodiment of the present invention.
Fig. 5 and Fig. 6 are support schematic diagrams provided in an embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The application principle of the present invention is explained in detail below in conjunction with the accompanying drawings.
As shown in figure 1, the Minitype vehicle provided in an embodiment of the present invention based on ANSYS transports the model construction of job platform
Method includes:
S101:Set up FEM model;
S102:Operating mode boundary condition is set and finite element Static Strength Analysis;
S103:Vehicle-mounted transhipment job platform model analysis;
S104:Vehicle-mounted transhipment job platform optimization analysis.
The application principle of the present invention is further described with reference to specific embodiment.
1. set up FEM model
1.1 set up threedimensional model
The present invention carries out three-dimensional modeling, its correlated performance design ginseng to transhipment job platform using solid works softwares
Number is as follows;
1. Minitype vehicle transhipment job platform load-carrying is about 2t, long 3m, wide 1.2m.
2. transhipment job platform lifting range is 300mm, and lifting time is less than 4 minutes.
3. supporting leg and platform assembly material are mainly Q235.
Its drive part selects model SJA200 spiral lifting motor, in order to which the lifting for four supporting legs of platform is carried
For strong impetus.Lifting landing leg assembly is as shown in Fig. 2 its outer lead can improve supporting leg rigidity.The transhipment job platform compared with
Hydraulic elevating platform has the advantages that to manipulate that convenient, the leveling time is short, staffing is few, operation under multi-state, it is contemplated that design
Cost, platform suspension system temporarily uses rubber mounting, and it is as shown in Figure 3 that it lifts transhipment job platform assembly.
1.2 finite element analysis model
Because vehicle bridge and steering mechanism are using customization, its strength and stiffness is required to meet design requirement, for the ease of carrying out
Finite element analysis, handles parts thereof simplification, omits the annexes such as vehicle bridge and fuel tank.Using ANSYS to its just six face
Volume mesh is divided, altogether 162014 nodes, 67147 units.
2. operating mode boundary condition is set and finite element Static Strength Analysis
The influence of inertia and structural damping is not considered in ANSYS Workbench linear-static structural analyses.The present invention
Its static operating mode is set as transfer and two kinds of operating modes of vehicular platform leveling to carry out Static Strength Analysis.Cargo vehicle parameter:Matter
Measure 2t.During analysis, the rigidity of supporting leg changes with the change of support column and lead registration.In view of ground inclination
And the shock loading brought of internal attachment device etc., additional loading mass COEFFICIENT K=1.1~1.3, reference load need to be multiplied
With SJA200 spiral lifts selected by the stroke curve of stability.
Finite element analysis of 2.1 vehicular platforms during road traveling
The vehicle-mounted transhipment job platform full load of main analog travels occurred stress distribution and deformation feelings in good road surface
Condition.Vehicle-mounted job platform is when good road surface is travelled, and boundary condition sets as follows, and cylinder is set about in vehicle bridge and saddle contact position
Beam, discharges vehicle frame pitch freedom, constrains its radial and axial free degree.During loading, it is considered to which vehicle frame is conducted oneself with dignity, apply vertical gravity
Acceleration, vehicle frame is carried as 20000N, is applied to supporting region in the middle part of vehicle frame.Because vehicular platform wheel base is larger, and propons
Centre-to-centre spacing is relatively large compared with back axle, causes the anterior rigidity of vehicular platform smaller, and vertical deviation deformation 0.4586mm causes platform branch
Nearby stress reaches 193.68MPa for leg joining place and vehicle bridge, less than the yield limit of platform.Maximum stress occur lifting leg with
Vehicle frame joining place, practice have shown that, exactly most easily there is the place of crackle in this position.
Finite element analysis during 2.2 vehicular platform leveling
Maximum stress and largest deformation under different supporting leg strokes is as shown in table 1.
Each stroke stress of table 1 and deformation
Stress and strain can increase with the increase of supporting leg stroke, and in h=300mm, the maximum stress value of platform is
15.586Mpa, less than the yield limit of material, meets static strength requirement.
Static analysis has totally been carried out to transhipment job platform, stress, the strain variation of different operating mode lower platforms has been obtained
Situation, and result data is analyzed, as a result show that the transhipment job platform static characteristic of design meets design requirement.
3. vehicle-mounted transhipment job platform model analysis
Model analysis is a kind of method for determining the structure in design or the vibration characteristics of machine part.Characteristics of mode
Mainly there is following three aspect.One is to make structure avoid resonating or being vibrated by specific frequency;Two be solution structure to inhomogeneity
The response of the dynamic load(loading) of type;Three, which contribute to the estimation in other dynamic analyses, solves control parameter.
3.1 prestressed modal analysis
Boundary condition imitation real working condition in vehicle frame prestressed modal analysis, can accurately solve vehicle frame in specific work
Dynamic property under condition.Its result not only can be used to analyze the performance of vehicle frame, can also be directly right by eigenfrequncies and vibration models
The structure of vehicle frame is evaluated.It is contemplated herein that prestressing force situation, be the at the uniform velocity traveling and during leveling in good road surface, by itself
Quality and the prestressing force for carrying quality and producing.After ansysworkbench solution, as shown in table 2
The vehicle-mounted transhipment job platform prestressed modal analysis of table 2
Analyze each vibration shape cloud atlas and understand that the vehicle frame vibration shape is smooth not to be mutated.For transhipment job platform, cause vehicle frame
The exciting source of vibration is vibrated essentially from caused by Uneven road, and 20Hz is generally below as the excitation caused by Uneven road, and
In the presence of prestressing force, vehicle frame rigidity is increased, and frequency is above road surface fundamental frequency, and job platform will not be caused to occur altogether
Shake.The equipment such as other contained radar may also produce excitation to vehicle frame, and this certain driving frequency is according to transport equipment instrument
It is not both uncertain, it is necessary to be analyzed as the case may be.Analyzed from the vibration shape, deformation occurs in transhipment job platform branch
Leg joining place, tandem axle are neighbouring and turn to tray fixing device, and largest deformation reaches 6.0467mm.During vehicular platform leveling, car
Frame rigidity is relative to be increased, and its respective frequencies and vibration shape change are relatively small.
4. vehicle-mounted transhipment job platform optimization analysis
For above-mentioned analysis institute produced problem, it is necessary to which the mechanism that trailer-mounted radar transports job platform is optimized:
On the one hand increase the rigidity of steering fixture, and increase reinforcement at supporting leg;On the other hand, it is contemplated that stress during supporting leg leveling
Situation and the Bearing Seat Force for carrying bending power, make bearing carrier on the premise of vehicle performance is not influenceed, stress is more reasonable, carry
High vehicular platform stability.The front and rear support frame of optimization is as shown in Figure 4,5.
Finite element of 4.1 vehicular platforms during road traveling is analyzed again
Main analog trailer-mounted radar transports job platform full load in the occurred stress distribution of good road surface traveling and change
Shape situation.Because vehicular platform wheel base is larger, and front axle centre causes vehicular platform anterior just away from relatively large compared with back axle
Degree is smaller, vertical deviation deformation 0.4378mm, and causing platform legs joining place and vehicle bridge, nearby stress reaches 170.93MPa, small
In the yield limit of platform.Comparative analysis understands that the ess-strain of vehicular platform has larger improvement after optimization.
Prestressed modal analysis after the optimization of 4.2 vehicular platforms
Job platform is transported for the trailer-mounted radar after optimization, when at the uniform velocity travelling in good road surface with leveling, by itself
Quality and the prestressing force for carrying quality and producing.After ANSYS Workbench solution, as shown in table 3
The vehicle-mounted transhipment job platform prestressed modal analysis of table 3
Each vibration shape cloud atlas is analyzed to understand, for transhipment job platform, cause the exciting source of frame weaving essentially from
Vibrated caused by Uneven road, 20Hz is generally below as the excitation caused by Uneven road.And in the presence of prestressing force, optimization
Rear frame rigidity increases, and listed intrinsic frequency is higher than road surface excitation frequency in table 3, and correspondence vibration shape Expected Results relatively optimizes
Before have a very big lifting, meet expected require.Vehicular platform intrinsic frequency gets a promotion with optimization during leveling, correspondence
Closer to expected before the relative optimization of effect that the vibration shape is presented.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
Any modifications, equivalent substitutions and improvements made within refreshing and principle etc., should be included in the scope of the protection.
Claims (6)
1. a kind of Minitype vehicle based on ANSYS transports the model building method of job platform, it is characterised in that described to be based on
The model building method of ANSYS Minitype vehicle transhipment job platform includes:
Step one, FEM model is set up;
Step 2, the setting of operating mode boundary condition and finite element Static Strength Analysis;
Step 3, vehicle-mounted transhipment job platform model analysis;
Step 4, vehicle-mounted transhipment job platform optimization analysis.
2. the Minitype vehicle based on ANSYS transports the model building method of job platform as claimed in claim 1, its feature exists
In the step one is specifically included:
(1) three-dimensional modeling is carried out to transhipment job platform using solid works softwares, correlated performance design parameter is as follows;
1. Minitype vehicle transhipment job platform load-carrying is about 2t, long 3m, wide 1.2m;
2. transhipment job platform lifting range is 300mm, and lifting time is less than 4 minutes;
3. supporting leg and platform assembly material are mainly Q235;
Drive part selects model SJA200 spiral lifting motor;The outer lead of lifting landing leg assembly improves supporting leg rigidity;
Platform suspension system temporarily uses rubber mounting;
(2) finite element analysis model
Omit vehicle bridge and fuel tank annex;Using ANSYS to its just hexahedral mesh divide, 162014 nodes, 67147 altogether
Individual unit.
3. the Minitype vehicle based on ANSYS transports the model building method of job platform as claimed in claim 1, its feature exists
In the step 2 is specifically included:
(1) its static operating mode is set as transfer and two kinds of operating modes of vehicular platform leveling to carry out Static Strength Analysis, cargo vehicle
Parameter:Quality 2t;The rigidity of supporting leg changes with the change of support column and lead registration;Multiply additional loading mass coefficient
K=1.1~1.3, reference load and SJA200 spiral lifts selected by the stroke curve of stability;
(2) finite element analysis of the vehicular platform during road traveling, simulates vehicle-mounted transhipment job platform full load good
Stress distribution and deformation that road traveling occurs;Vehicle-mounted job platform is when good road surface is travelled, and boundary condition is set
It is as follows, set cylinder to constrain in vehicle bridge and saddle contact position, discharge vehicle frame pitch freedom, constrain its radial and axial freedom
Degree;During loading, it is considered to which vehicle frame is conducted oneself with dignity, apply vertical acceleration of gravity, vehicle frame is carried as 20000N, be applied to carrying in the middle part of vehicle frame
Area;Maximum stress occurs in lifting leg and vehicle frame joining place;
(3) finite element analysis during vehicular platform leveling, in h=300mm, the maximum stress value of platform is 15.586Mpa,
Less than the yield limit of material, static strength requirement is met.
4. the Minitype vehicle based on ANSYS transports the model building method of job platform as claimed in claim 1, its feature exists
In the step 3 is specifically included:Structure is set to avoid resonating or being vibrated by specific frequency;Solution structure is to different types of
The response of dynamic load(loading);Estimation solves control parameter in other dynamic analyses;
Boundary condition imitation real working condition in prestressed modal analysis, vehicle frame prestressed modal analysis, solves vehicle frame in tool
Dynamic property under body operating mode;Structure by eigenfrequncies and vibration models directly to vehicle frame is evaluated.
5. the Minitype vehicle based on ANSYS transports the model building method of job platform as claimed in claim 1, its feature exists
In the step 4 is specifically included:
(1) finite element of the vehicular platform during road traveling is analyzed again, simulation trailer-mounted radar transhipment job platform full load
In the occurred stress distribution of good road surface traveling and deformation;
(2) prestressed modal analysis after vehicular platform optimization, by ANSYS Workbench solution.
6. a kind of Minitype vehicle as described in Claims 1 to 5 any one based on ANSYS transports the model construction of job platform
The Minitype vehicle transhipment job platform that method is built.
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