CN104034535A - Variable-stiffness virtual vehicle body - Google Patents
Variable-stiffness virtual vehicle body Download PDFInfo
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- CN104034535A CN104034535A CN201410272476.0A CN201410272476A CN104034535A CN 104034535 A CN104034535 A CN 104034535A CN 201410272476 A CN201410272476 A CN 201410272476A CN 104034535 A CN104034535 A CN 104034535A
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Abstract
The invention relates to a variable-stiffness virtual vehicle body which comprises an upper pressing plate, a lower pressing plate, a belleville spring, a bolt and a nut. The belleville spring is connected between the upper pressing plate and the lower pressing plate and connected through the bolt and the nut. The nut is provided with an angle mark for the nut to rotate through an angle to determine the deformation of the belleville spring. The bolt is a fine thread bolt. The upper pressing plate is connected with a test bed support, and the lower pressing plate is connected with a suspension. According to the variable-stiffness virtual vehicle body, simulation of vehicle body stiffness in the test process is achieved, the stiffness can be adjusted as required, variable stiffness is achieved, and accordingly simulation of vehicle bodies with different degrees of stiffness through a single product is achieved. By applying the variable-stiffness virtual vehicle body to a suspension test bed, the shortcoming that an existing suspension test bed is too large in load impact can be overcome, suspension tests can reflect use loads more genuinely, and the development level of the suspension at an earlier stage is improved.
Description
Technical field
The present invention relates to the virtual vehicle body of a kind of change rigidity, especially a kind of being applied in suspension process of the test to simulate the vehicle body of different body stiffness.
Background technology
In order to realize the Proper Match of vehicle body and suspension, except carrying out theoretical research, also need to carry out lot of experiments.Aspect test, can be divided into real train test and bench test, real train test result is accurate, but needs preproduction car, and needs larger sample size, and experimentation cost is very high; Bench test can reduce experimentation cost effectively, and increases test sample amount, the condition that good test platform even provides parts to synchronize exploitation with car load.Existing suspension testing table focuses mostly in suspension system close beta, there is not yet can simulated suspension mounting points body stiffness test unit, mostly tie point on suspension and test-bed are rigidly fixed, do not consider the flexibility of vehicle body, truth in this and suspension use procedure is not inconsistent, thereby cause in process of the test shock load excessive, on stand, mate index good be suspended in performance and requirement on real vehicle and differ far away, and then limited parts and synchronize and develop with car load.
In order to solve this contradiction, need to design a kind of structure in order to realize the simulation to vehicle body flexibility, make in suspension process of the test can actual response suspension maneuvering load.This structure that can simulate body stiffness is called virtual vehicle body.Before testing, reconcile the rigidity that flexible member reaches appointment, the rigidity of this flexible member is the rigidity of virtual vehicle body.
Summary of the invention
The object of the invention is to the defect for existing suspension testing table, provide a kind of change rigidity virtual vehicle body, this virtual vehicle body is installed to suspension on desirable rigid support by specific flexible member, in order to make this virtual vehicle body, can simulate the vehicle body of different-stiffness, be designed to variable rigidity, become the virtual vehicle body of rigidity.
The technical solution adopted in the present invention is to achieve these goals: the virtual vehicle body of a kind of change rigidity, comprise top board, lower platen, disk spring, bolt, nut, be characterized in: between top board and lower platen, be connected with disk spring, and connect by bolt, nut; Nut is provided with the angle mark of determining disk spring deflection for the nut anglec of rotation.
Bolt is bolt of serration.Top board is connected with testing table support, and lower platen is connected with suspension.
The beneficial effect that the present invention has is: (1) applies suspension testing table of the present invention can truly reflect the maneuvering load of suspension in process of the test; (2) disk spring that the present invention selects, as flexible member, has been realized the variable rigidity of virtual vehicle body, and variation range is wide, and single product is applicable to different body stiffness, applied widely; (3) disk spring has the little feature of rigidity large deformation, therefore the compact conformation of virtual vehicle body.
Accompanying drawing explanation
Fig. 1 is change rigidity virtual vehicle body structure schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As shown in Figure 1, the virtual vehicle body of a kind of change rigidity, comprises top board 1, lower platen 3, disk spring 2, bolt 4, nut 5.
Top board 1, disk spring 2, lower platen 3 are installed successively, and are connected and fixed by bolt 4 nuts 5; On nut 5, process special angle mark, in use by the anglec of rotation of setting nut 5, change the distance between top board 1 and lower platen 3, thereby change the initial deformation amount of disk spring 2, each deflection is corresponding to a fixing rigidity, and this rigidity is virtual body stiffness.Bolt 4 is selected bolt of serration, to guarantee less pitch, is in use convenient to the deflection of trickle adjustment disk spring 2, with this, realizes the simulation to different-stiffness vehicle body.Generally, top board 1 is connected with testing table support, and lower platen 3 is connected with suspension.In connection procedure, notice that virtual vehicle body should be rigidly connected with support, and guarantee that support can be considered rigid body in using.
Consider that virtual body mechanism should be able to simulate different body stiffness, need to there is stiffness variation scope to a certain degree, therefore consider to select the spring of stiffness variable to simulate body stiffness.Consider that version is simple, meet the spring that becomes stiffness characteristics that has of line rigidity requirement: variable stiffness coil spring and disk spring.Disk spring and variable stiffness coil spring are compared, and variable stiffness coil spring rigidity is less, and axial dimension is larger, and installing space is proposed to high requirement; Disk spring axial dimension is less, and stiffness variation scope is large, and has realized standardization, in design process, can select the comparatively disk spring of suitable types according to its load and rigidity requirement, reduces workload.
When design disk spring, should follow following principle:
1) guarantee rational stiffness variation scope;
2), within the scope of available stiffness variation, its corresponding load will be in a rational scope;
3) there is certain deformation space;
4) stiffness variation is mild.
Claims (3)
1. one kind becomes the virtual vehicle body of rigidity, comprise top board (1), lower platen (3), disk spring (2), bolt (4), nut (5), it is characterized in that: between described top board (1) and lower platen (3), be connected with disk spring (2), and connect by bolt (4), nut (5); Nut (5) is provided with the angle mark of determining disk spring deflection for the nut anglec of rotation.
2. the virtual vehicle body of change rigidity according to claim 1, is characterized in that: described bolt (4) is bolt of serration.
3. the virtual vehicle body of change rigidity according to claim 1, is characterized in that: described top board (1) is connected with testing table support, and lower platen (3) is connected with suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272476.0A CN104034535A (en) | 2014-06-18 | 2014-06-18 | Variable-stiffness virtual vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410272476.0A CN104034535A (en) | 2014-06-18 | 2014-06-18 | Variable-stiffness virtual vehicle body |
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| Publication Number | Publication Date |
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| CN104034535A true CN104034535A (en) | 2014-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410272476.0A Pending CN104034535A (en) | 2014-06-18 | 2014-06-18 | Variable-stiffness virtual vehicle body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873650A (en) * | 2018-08-30 | 2020-03-10 | 上汽通用汽车有限公司 | Vehicle body rigidity simulation system for suspension test |
Citations (9)
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| EP0040675A2 (en) * | 1980-05-24 | 1981-12-02 | Boge GmbH | Self-pumping levelling device for vehicles, particularly for motor vehicles |
| DE19521128C1 (en) * | 1995-06-09 | 1996-06-27 | Daimler Benz Ag | Support bearing for shock absorber of motor vehicle |
| CN2572384Y (en) * | 2002-10-21 | 2003-09-10 | 清华大学 | Impactness test instrument for car |
| CN201017488Y (en) * | 2007-03-24 | 2008-02-06 | 管文礼 | Electric-controlled air spring experimental device of sedan car |
| KR20080026817A (en) * | 2006-09-21 | 2008-03-26 | 현대모비스 주식회사 | A vehicle body fixture for sled test |
| CN101216376A (en) * | 2008-01-16 | 2008-07-09 | 吉林大学 | Four-column type rail vehicle bogie rigidity detection system |
| KR20110127491A (en) * | 2010-05-19 | 2011-11-25 | 현대위아 주식회사 | Impact tester for module of the vehicle |
| CN102539171A (en) * | 2011-12-23 | 2012-07-04 | 青岛大学 | Test-bed of double-control vehicle semi-active suspension system |
| CN203093669U (en) * | 2012-12-25 | 2013-07-31 | 长安大学 | Automobile suspension stiffness regulating device based on single chip microcomputer |
-
2014
- 2014-06-18 CN CN201410272476.0A patent/CN104034535A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0040675A2 (en) * | 1980-05-24 | 1981-12-02 | Boge GmbH | Self-pumping levelling device for vehicles, particularly for motor vehicles |
| DE19521128C1 (en) * | 1995-06-09 | 1996-06-27 | Daimler Benz Ag | Support bearing for shock absorber of motor vehicle |
| CN2572384Y (en) * | 2002-10-21 | 2003-09-10 | 清华大学 | Impactness test instrument for car |
| KR20080026817A (en) * | 2006-09-21 | 2008-03-26 | 현대모비스 주식회사 | A vehicle body fixture for sled test |
| CN201017488Y (en) * | 2007-03-24 | 2008-02-06 | 管文礼 | Electric-controlled air spring experimental device of sedan car |
| CN101216376A (en) * | 2008-01-16 | 2008-07-09 | 吉林大学 | Four-column type rail vehicle bogie rigidity detection system |
| KR20110127491A (en) * | 2010-05-19 | 2011-11-25 | 현대위아 주식회사 | Impact tester for module of the vehicle |
| CN102539171A (en) * | 2011-12-23 | 2012-07-04 | 青岛大学 | Test-bed of double-control vehicle semi-active suspension system |
| CN203093669U (en) * | 2012-12-25 | 2013-07-31 | 长安大学 | Automobile suspension stiffness regulating device based on single chip microcomputer |
Non-Patent Citations (1)
| Title |
|---|
| 迟永一: "基于变刚度的车辆悬架减震系统设计研究", 《中国优秀硕士学位论文全文数据库 工程科技II辑》, no. 22011, 15 December 2011 (2011-12-15), pages 22 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873650A (en) * | 2018-08-30 | 2020-03-10 | 上汽通用汽车有限公司 | Vehicle body rigidity simulation system for suspension test |
| CN110873650B (en) * | 2018-08-30 | 2021-11-16 | 上汽通用汽车有限公司 | Vehicle body rigidity simulation system for suspension test |
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Application publication date: 20140910 |
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| RJ01 | Rejection of invention patent application after publication |