CN106644528A - Device and design method for realizing rapid connection of frame body with different suspensions - Google Patents
Device and design method for realizing rapid connection of frame body with different suspensions Download PDFInfo
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- CN106644528A CN106644528A CN201710106753.4A CN201710106753A CN106644528A CN 106644528 A CN106644528 A CN 106644528A CN 201710106753 A CN201710106753 A CN 201710106753A CN 106644528 A CN106644528 A CN 106644528A
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- suspension
- link
- base
- support
- mounting rod
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/04—Suspension or damping
-
- 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
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
Abstract
The invention belongs to the automobile field and particularly relates to a device and design method for realizing rapid connection of a frame body with different suspensions. The method includes the following steps of 1. defining suspension design space, 2. setting uniform installing points; 3. performing virtual assembling and analysis; 4. designing an installing plate; 5. designing the connecting rack of a base; and 6. designing the support of the base. The connection device can guarantee the connection of suspensions in different types with the frame body, namely a test simplified vehicle body structure having adjustable parameters of wheelbase, wheelspan, axle load distribution, body rigidity and can be matched with different power devices, steering systems, and brake systems, the hard spot installation precision is guaranteed, and the difficulties of the suspensions in different types in the test can be solved.
Description
Technical field
The invention belongs to automotive field, specifically a kind of device and its design for realizing that vehicle body is quickly connected with suspension
Method.
Background technology
When the performance test of front suspension needs special test vehicle for a specific suspension, when suspension in design
When changing, when especially hard spot position changes, need to be adjusted accordingly to testing vehicle, and in real process,
It is quite loaded down with trivial details that vehicle is adjusted, and workload is than larger, so that the test period of suspension is relatively long, is unfavorable for hanging
The carrying out of frame design work.In addition, for the suspension of various configuration, its installation site is nor fixed.Car enterprise needs are directed to
Specific suspension type arranges special test vehicle to complete the performance test work to suspension, and then causes the exploitation of suspension
Costly, the construction cycle is longer, is unfavorable for the R&D work of product.
The content of the invention
The invention provides a kind of device and its method for designing for realizing that vehicle body is quickly connected with suspension, the method for designing sets
The attachment means counted out can ensure that various configuration suspension can be connected with frame-type vehicle body, and frame-type vehicle body refers to wheelbase, wheel
Can adjust away from parameters such as, axle load distribution, body stiffness, and different dynamic device, steering, braking can be matched
The test of system ensure that its hard spot installation accuracy, solved above-mentioned various configuration suspension with body structure, attachment means are simplified
Difficulty in testing.
Technical solution of the present invention is described with reference to the drawings as follows:
A kind of to realize the device that framework vehicle body is quickly connected with various configuration suspension, the device includes mounting rod 1 and base;
Wherein described mounting rod 1 is connected with vehicle body;Described base is fixed as one by installing plate 2-1, support 2-2 and link 2-3
Body;Described support 2-2 is welded on the lower section of installing plate 2-1;Described link 2-3 is welded on the lower section of support 2-2;It is described
Installing plate 2-1 be bolted on the lower section of mounting rod 1;Described link 2-3 is connected with automotive suspension
Described mounting rod 1 is cuboid box girder construction, and size is 50mm*50mm*800mm, and thickness is 5mm.
Described installing plate 2-1 is cuboid, and a length of 200mm, a width of 50mm, a height of 15mm are provided with 2 on installing plate 2-1
The bolt hole of individual a diameter of 8mm.
Described support 2-2 is square box beam or circular tube structure.
Described link 2-3 sections are isosceles trapezoid or female groove structures, when link 2-3 is isosceles trapezoid, its
The lower section at left and right two ends extends outward respectively a parallel-plate, and bolt hole is provided with parallel-plate;When link 2-3 is groove knot
During structure, its both sides is axle sleeve structure.
The method is comprised the following steps:
Step one, definition suspension design space;
It is suspension design space, the upper surface of the design space and outer surface to define a space on the inside of two front-wheels
For wheel hop space, the bulk scope is within long 1500mm, width 1200mm, high 600mm;
Step 2, the uniform mount point of setting;
21st, vehicle axis system is defined first, the origin of vehicle axis system coincides with the barycenter of automobile, when vehicle is in level
Remain static on road surface, X-axis points to vehicle front parallel to ground, Z axis are pointed up by automobile barycenter, Y-axis is pointed to
The left side of driver;
22nd, secondly, multiple companies for installing the connecting rod of X-direction are evenly arranged in the front and rear surfaces of design space
Contact, the spacing between adjacent two connecting rods is 20mm, and these X-direction connecting rods are simultaneously by Y direction support bar and Z
Direction of principal axis support bar is connected to upper surface, and a connecting hole, connecting hole are drilled with every 100mm spacing in X-direction connecting rod
Aperture be 8mm, thus spatially define the uniform grid for connecting suspension hard spot that can be dismantled of a determining deviation;
Step 3, Virtual assemble and analysis;
Framework Car body model and Suspension Model are imported and is assembled in ADAMS, kinematics analysis is carried out, in virtual environment
The lower mounting rod and support bar for removing movement interference, will be remaining and hard as this from the nearest connecting rod 2 of suspension hard spot
The mounting rod 1 of point, and choose on the mounting rod 1 apart from two nearest connecting holes of suspension hard spot as installing hole;
Step 4, design and installation plate;
Design one can be arranged on the rectangular slab below optimal X-direction mounting rod 1 as hard spot connecting seat, rectangular slab
Size is 200mm*50mm*15, and the bolt hole of 2 a diameter of 8mm is provided with installing plate 2-1, on the bolt hole and mounting rod 1
Installing hole connects;
The link of step 5, design base;
The link 2-3 of the hard spot is designed according to connection features at suspension hard spot;Described link 2-3 is towards installation
The direction of plate 2-1 forms a joint face, and link 2-3 is without considering dimensional orientation;Its correct connection with installing plate 2-1
Direction is ensured by support 2-2.
The support of step 6, design base;
Dynamic suspension system of vehicles analysis is carried out in ADAMS, the active force at each hard spot of Suspension Model is extracted, as connecting bracket
The load-up condition of design;The link 2-3 of the installing plate 2-1 of the base designed in step 4 and step 5 and base is imported
Finite element software, according to the load-up condition that step 6 is provided, obtains attachment structure therebetween, i.e., using Topology Optimization Method
The support 2-2 of base;It is that installing plate 2-1, support 2-2 and link 2-3 carry out structure design to three part-structures of base, obtains
To base assembly organization plan.
Beneficial effects of the present invention are:
1st, the present invention can realize the Quick universal of suspension;
2nd, the present invention can combine the performance test that a framework body structure completes to various suspensions, saving working time
And workload;
3rd, when suspension is changed in design, change agency can be adjusted and causes the suspension Fast Installation after changing
To with chassis, without adjusting to framework vehicle body;
4th, after optimization, stiffness performance reaches most preferably change agency, is not susceptible to destruction;
5th, the method strong adaptability, can be quickly found out the best position that many moneys are suspended in different vehicle, it is ensured that
Interference will not be moved;
6th, ensure various configuration suspension (its hard spot position and dimensional orientation are not determined to be connected with framework vehicle body, and
Ensure its hard spot installation accuracy.
Description of the drawings
Fig. 1 is the structural representation that the device that vehicle body is quickly connected with suspension is realized in the present invention;
Fig. 2 is that the structural representation that the device that vehicle body is quickly connected with suspension is connected with framework vehicle body is realized in the present invention;
Fig. 3 is suspension design space in the present invention and framework body structure schematic diagram;
Fig. 4 is vehicle axis system schematic diagram in the present invention;
Fig. 5 is X-direction and Z-direction mounting rod connection diagram in the present invention;
Fig. 6 is method for designing flow chart of the present invention;
Specific embodiment
This specification is introduced Quick universal mechanism design method by taking common two-box automobile as an example, and involved method can be applied
In various vehicles.
A kind of to realize the device that vehicle body is quickly connected with suspension refering to Fig. 1, Fig. 2, the device includes mounting rod 1 and base;
Wherein described mounting rod 1 is connected with vehicle body;Described base is fixed as one by installing plate 2-1, support 2-2 and link 2-3
Body;Described support 2-2 is welded on the lower section of installing plate 2-1;Described link 2-3 is welded on the lower section of support 2-2;It is described
Installing plate 2-1 be bolted on the lower section of mounting rod 1;Described link 2-3 is connected with automotive suspension.
Described installing plate 2-1 is cuboid, and a length of 200mm, a width of 50mm, a height of 15mm are provided with 2 on installing plate 2-1
The bolt hole of individual a diameter of 8mm.
Described mounting rod 1 is box beam, and size is 50mm*50mm*800mm, and thickness is 5mm.
When common wing-rooms on either side of a one-story house suspension is McPherson suspension,
Described support 2-2 is rhs-structure.
Described link 2-3 is isosceles trapezoidal structure, and downside two ends respectively arrange a bolt hole, realize the spiral shell with suspension
Tether and connect.
When common wing-rooms on either side of a one-story house suspension is double wishbone suspension,
Described support 2-2 is square box-beam structure;
Described link 2-3 sections are groove type structure, and downside two ends are respectively provided with circular hole, are realized by connecting shaft and outstanding
The axle sleeve connection of frame.
Refering to Fig. 6, a kind of method for designing for realizing the device that framework vehicle body is quickly connected with various configuration suspension, the method
Comprise the following steps:
Refering to Fig. 3, step one, definition suspension design space;
The space defined on the inside of two front-wheels is suspension design space, and six surfaces of the design space are except following table
Face is ground, and upper surface and outer surface are wheel hop space, and the bulk scope is in long 1500mm, width 1200mm, height
Within 600mm, behind the design work of change agency mainly launch within the range;
Refering to Fig. 4, step 2, the uniform mount point of setting;
21st, vehicle axis system is defined first, the origin of vehicle axis system coincides with the barycenter of automobile, when vehicle is in level
Remain static on road surface, X-axis points to vehicle front parallel to ground, Z axis are pointed up by automobile barycenter, Y-axis is pointed to
The left side of driver;
22nd, secondly, multiple connections for installing X-direction are evenly arranged in design space front and rear surfaces and framework
The tie point of bar, the size of described connecting rod is 50mm*50mm*800mm, and thickness is 5mm.Between adjacent two connecting rods
Spacing is 20mm, and these X-direction connecting rods are connected to upper surface by Y direction support bar and Z-direction support bar simultaneously,
Purpose is to improve support stiffness, if rigidity requirement is not high, X-direction connecting rod can only with front-back in one
Face is connected.A connecting hole is drilled with every 100mm spacing in X-direction connecting rod, the aperture of connecting hole is 8mm, so
Just spatially define the uniform grid for connecting suspension hard spot that can be dismantled of a determining deviation;These grids are used to connect
Suspension hard spot.In suspension design, it is to ensure the coordination and assembling between parts during General Layout Design that suspension hard spot is
Relation, and control point determined by shaping style requirement (or the general name of coordinate, control line, chain of command and control structure, it is commonly called as setting
Meter hard spot, such as suspension mount point, suspension overall dimension etc..
Refering to Fig. 5, step 3, Virtual assemble and analysis;
Framework Car body model and Suspension Model are imported and is assembled in ADAMS, kinematics analysis is carried out, in virtual environment
The lower mounting rod and support bar for removing movement interference, will be remaining and hard as this from the nearest connecting rod 2 of suspension hard spot
The mounting rod 1 of point, and choose on the mounting rod 1 apart from two nearest connecting holes of suspension hard spot as installing hole;
Virtual assemble:We are suspended in suspension in admas software car modules by taking McPherson suspension as an example particular type
Partial adjustment is McPherson suspension, is carried out in any two groups of X-direction mounting rods by McPherson suspension in step 2 virtual
Equipment.
Interference analysis:Its objective is to determine two optimal X-direction mounting rods, this process is in ADAMS softwares
Complete.Framework Car body model and Suspension Model are imported and are assembled in ADAMS softwares, enter the kinematics analysis of line bounce,
The virtual connecting rod and support bar for removing movement interference, will be remaining and from the nearest connecting rod 2 as this of suspension hard spot
The mounting rod 1 of hard spot, and two connecting holes nearest on the mounting rod 1 are chosen as installing hole;
According to enterprise, Suspension movement interferes standard as follows:
1st, in the beating scope of front suspension and steering state checks the gap of shock absorber, spring base and chassis runner etc.,
Gap width is not less than 12mm.
2nd, the movement clearance of swing arm and subframe is checked in the beating scope of front suspension, swing arm is not allow for subframe
Interference.
3rd, the gap of shock absorber, spring and spring base and car body and wheel bag is checked in the beating scope of rear suspension, gap width is not
Less than 12mm;
Meet simultaneously more than it is concluded that:Being suspended in motion process to interfere, and meeting entire vehicle design will
Ask.
Step 4, design and installation plate;
Design one can be arranged on the rectangular slab below optimal X-direction mounting rod 1 as hard spot connecting seat, rectangular slab
Size is 200mm*50mm*15, and the bolt hole of 2 a diameter of 8mm is provided with installing plate 2-1, on the bolt hole and mounting rod 1
Installing hole connects;
The link of step 5, design base;
The link 2-3 of the hard spot is designed according to connection features at suspension hard spot;Because suspension hard spot form is with suspension structure
Type it is different and different, therefore the version of link 2-3 and do not know, following condition need only be met:1) need to ensure
Correctly it is connected with suspension hard spot, 2) is forming a joint face towards the direction of installing plate 2-1;The link is without considering space
Orientation;It is ensured with the correct closure of installing plate by support 2-2.
The support of step 6, design base;
Dynamic suspension system of vehicles analysis is carried out in ADAMS, the active force at each hard spot of Suspension Model is extracted, as connecting bracket
The load-up condition of design;The link 2-3 of the installing plate 2-1 of the base designed in step 4 and step 5 and base is imported
Finite element software, according to the load-up condition that step 6 is provided, obtains attachment structure therebetween, i.e., using Topology Optimization Method
The support 2-2 of base;It is that installing plate 2-1, support 2-2 and link 2-3 carry out structure design to three part-structures of base, obtains
To base assembly organization plan.
Topological optimization refers to a kind of given loading condition of basis, constraints and performance indications, in given region
The mathematical method that material distribution is optimized.
The main purpose of applied topology optimization is to take into full account Bearing Seat Force situation in this step, and vehicle body is connected shape with suspension
Formula, obtains optimal support style.
Claims (6)
1. it is a kind of to realize the device that framework vehicle body quickly connects from different suspensions, it is characterised in that the device includes mounting rod (1)
And base;Wherein described mounting rod (1) is connected with vehicle body;Described base is by installing plate (2-1), support (2-2) and connection
Frame (2-3) is fixed as one;Described support (2-2) is welded on the lower section of installing plate (2-1);Described link (2-3) weldering
It is connected on the lower section of support (2-2);Described installing plate (2-1) is bolted on the lower section of mounting rod (1);Described connection
Frame (2-3) is connected with automotive suspension.
2. a kind of device for realizing the quick connection of framework vehicle body and different suspensions according to claim 1, it is characterised in that
Described mounting rod (1) is rectangle, and size is 50mm*50mm*800mm, and thickness is 5mm.
3. it is according to claim 1 a kind of to realize the device that vehicle body is quickly connected with suspension, it is characterised in that described peace
Dress plate (2-1) is rectangle, and a length of 200mm, a width of 50mm, a height of 15mm are provided with the spiral shell of 2 a diameter of 8mm on installing plate (2-1)
Keyhole.
4. a kind of device for realizing the quick connection of framework vehicle body and different suspensions according to claim 1, it is characterised in that
Described support (2-2) is square box beam or circular tube structure.
5. a kind of device for realizing the quick connection of framework vehicle body and different suspensions according to claim 1, it is characterised in that
Described link (2-3) is isosceles trapezoid or groove structure, when link (2-3) is isosceles trapezoid, its left and right two ends
Lower section extends outward respectively a parallel-plate, and bolt hole is provided with parallel-plate;When link (2-3) is groove structure, it two
Side is axle sleeve structure.
6. a kind of method for designing for realizing the quick device of connection of framework vehicle body and different suspensions according to claim 1,
Characterized in that, the method is comprised the following steps:
Step one, definition suspension design space;
It is suspension design space to define a space on the inside of two front-wheels, and the upper surface of the design space and outer surface are car
Wheel jitter space, the bulk scope is within long 1500mm, width 1200mm, high 600mm;
Step 2, the uniform mount point of setting;
21) vehicle axis system, is defined first, the origin of vehicle axis system coincides with the barycenter of automobile, when vehicle is on horizontal road
Remain static on face, X-axis points to vehicle front parallel to ground, Z axis are pointed up by automobile barycenter, Y-axis is pointed to and driven
The left side of the person of sailing;
22), secondly, multiple connections for installing the connecting rod of X-direction are evenly arranged in the front and rear surfaces of design space
Point, the spacing between adjacent two connecting rods is 20mm, and these X-direction connecting rods are simultaneously by Y direction support bar and Z axis
Direction support bar is connected to upper surface, and a connecting hole is drilled with every 100mm spacing in X-direction connecting rod, connecting hole
Aperture is 8mm, thus spatially defines the uniform grid for connecting suspension hard spot that can be dismantled of a determining deviation;
Step 3, Virtual assemble and analysis;
Framework Car body model and Suspension Model are imported and is assembled in ADAMS, enter the kinematics analysis of line bounce, in virtual ring
Under border remove movement interference mounting rod and support bar, using it is remaining and from the nearest connecting rod of suspension hard spot (2) as
The mounting rod (1) of the hard spot, and choose on the mounting rod (1) from two nearest connecting holes of suspension hard spot as installing hole;
Step 4, design and installation plate;
Design one can be arranged on optimal X-direction mounting rod (1) rectangular slab below as hard spot connecting seat, rectangle board foot
It is very little to be provided with the bolt hole of 2 a diameter of 8mm on installing plate (2-1) for 200mm*50mm*15, on the bolt hole and mounting rod (1)
Installing hole connection;
The link of step 5, design base;
The link (2-3) of the hard spot is designed according to connection features at suspension hard spot;Described link (2-3) is towards installation
The direction of plate (2-1) forms a joint face, and the link (2-3) is without considering dimensional orientation;It is with installing plate (2-1) just
Really closure is ensured by support (2-2).
The support of step 6, design base;
Dynamic suspension system of vehicles analysis is carried out in ADAMS, the active force at each hard spot of Suspension Model is extracted, as connecting bracket design
Load-up condition;The link (2-3) of the installing plate (2-1) of the base designed in step 4 and step 5 and base is imported
Finite element software, according to the load-up condition that step 6 is provided, obtains attachment structure therebetween, i.e., using Topology Optimization Method
The support (2-2) of base;It is that installing plate (2-1), support (2-2) and link (2-3) are tied to three part-structures of base
Structure is designed, and obtains base assembly organization plan.
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Cited By (1)
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CN114261463A (en) * | 2021-12-16 | 2022-04-01 | 东风汽车集团股份有限公司 | Cross power assembly rapid carrying hard spot selection method |
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