CN110873650A - Vehicle body rigidity simulation system for suspension test - Google Patents
Vehicle body rigidity simulation system for suspension test Download PDFInfo
- Publication number
- CN110873650A CN110873650A CN201811002013.7A CN201811002013A CN110873650A CN 110873650 A CN110873650 A CN 110873650A CN 201811002013 A CN201811002013 A CN 201811002013A CN 110873650 A CN110873650 A CN 110873650A
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- Prior art keywords
- vehicle body
- simulation system
- rigidity
- suspension
- springs
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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
Abstract
The invention relates to a vehicle body rigidity simulation system for a suspension test, which comprises: a base provided with a cross beam; at least one bracket assembly comprising three brackets, wherein the top of each bracket is secured to the cross beam and the bottom is provided with one or more springs arranged to provide a vertical stiffness at a location of a suspension system attached to a vehicle body to be simulated, and an additional component applying a pretension against the springs for providing a torque generated by the suspension system at the location. The invention has simple and compact structure, is easy to realize, and can quickly and efficiently simulate the vertical rigidity and the bending rigidity of the car body, thereby having good practicability and reliability.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a vehicle body rigidity simulation system for a suspension test, which can be used for carrying out a durability test of a suspension system.
Background
In developing an automotive suspension system, a structural durability test is required for the suspension system. Such a test would be used to simulate the loading of the suspension system in road tests. The suspension system is mounted on the vehicle body, but the vehicle body in white is not provided in the early development of the project because the vehicle body has certain rigidity, and the vehicle body in white is expensive. In order to carry out suspension test in early project, a set of device system is required to be designed for simulating the rigidity of the vehicle body to carry out suspension test, and particularly for the subframe without a bush, the simulation of the rigidity of the vehicle body is particularly important.
Disclosure of Invention
In view of the above, the present invention provides a vehicle body stiffness simulation system for suspension test, which effectively solves or alleviates one or more of the above problems and other problems existing in the prior art.
To this end, the invention provides a vehicle body rigidity simulation system for a suspension test, which comprises:
a base provided with a cross beam; and
at least one bracket assembly comprising three brackets, wherein the top of each bracket is secured to the cross beam and the bottom is provided with one or more springs arranged to provide a vertical stiffness at a location of a suspension system attached to a vehicle body to be simulated, and an additional component applying a pretension against the springs for providing a torque generated by the suspension system at the location.
In the vehicle body rigidity simulation system for the suspension test according to the present invention, optionally, the vehicle body rigidity simulation system includes a first bracket assembly and a second bracket assembly, which are arranged on a cross beam of the base, for simulating connection rigidity of sub frames on both sides of a front suspension in the suspension system to a vehicle body, respectively.
In the vehicle body rigidity simulation system for suspension test according to the present invention, optionally, the additional member is configured in a plate shape, and a length and a width of the additional member are determined in accordance with a longitudinal bending rigidity and a lateral bending rigidity of the suspension system at a position thereof, respectively.
In the vehicle body rigidity simulation system for a suspension test according to the present invention, optionally, the additional member is provided with a connection portion configured to connect an external test piece for a suspension test.
In the vehicle body rigidity simulation system for a suspension test according to the present invention, optionally, the connecting portion is a screw hole.
In the vehicle body rigidity simulation system for a suspension test according to the present invention, optionally, the bottom of the bracket, the spring, and the additional member are connected together by one or more connecting members.
In the vehicle body rigidity simulation system for a suspension test according to the present invention, optionally, the connection member includes a bolt and a nut.
In the vehicle body rigidity simulation system for a suspension test according to the present invention, optionally, the springs are provided with 4 sets and are uniformly distributed on the periphery of the bottom portion, wherein each set includes 2 springs arranged on both front and back sides of the bottom portion.
In the vehicle body stiffness simulation system for a suspension test according to the present invention, optionally, the spring is a diaphragm spring.
In the vehicle body rigidity simulation system for a suspension test according to the present invention, optionally, the roof portion is provided with 4 bolt holes, and the roof portion is fixed to the cross member by 4 bolts.
The principles, features, characteristics, advantages and the like of various aspects according to the present invention will be clearly understood from the following detailed description taken in conjunction with the accompanying drawings. For example, it will be appreciated that the vehicle body rigidity simulation system for the suspension test designed and provided according to the present invention has very significant technical advantages compared with the prior art, and not only has a simple, compact and easy implementation structure, but also can quickly and efficiently simulate the vertical rigidity and the bending rigidity of the vehicle body, thereby having good practicability and reliability.
Drawings
The present invention will be described in further detail below with reference to the drawings and examples, but it should be understood that the drawings are designed solely for purposes of illustration and are not necessarily drawn to scale, but rather are intended to conceptually illustrate the structural configurations described herein.
Fig. 1 is a schematic perspective view of an embodiment of a vehicle body rigidity simulation system for a suspension test according to the present invention.
Fig. 2 is a perspective view of one of the brackets in the embodiment shown in fig. 1.
Fig. 3 is a front view of the stand shown in fig. 2.
Fig. 4 is a schematic top view of the stent shown in fig. 2.
Fig. 5 is a side view of the stent shown in fig. 2.
Detailed Description
First, it should be noted that the structural composition, features, advantages, and the like of the vehicle body rigidity simulation system for suspension test of the present invention will be specifically described below by way of example, however, all the descriptions are for illustrative purposes only and should not be construed as forming any limitation on the present invention. For purposes of description herein, the terms "upper," "lower," "right," "left," "front," "rear," "lateral," "longitudinal," and derivatives thereof shall relate to the orientation as shown by way of example in fig. 1, but it is to be understood that the invention is susceptible to various alternative orientations.
Furthermore, any single feature described or implicit in an embodiment or any single feature shown or implicit in the drawings or shown or implicit in the drawings may still allow any combination or permutation to continue between the features (or their equivalents) to achieve still further embodiments of the invention that may not be directly mentioned herein. In addition, for simplicity of the drawings, identical or similar parts and features may be indicated in the same drawing only in one or several places.
Referring to fig. 1 to 2 in combination, the basic structural components of an embodiment of the body stiffness simulation system for suspension test according to the present invention are schematically shown in the drawings, and will be described in detail below.
In this embodiment, the vehicle body rigidity simulation system may include a base 4 having a cross member 5, and two bracket assemblies arranged on the cross member 5 of the base 4 so as to respectively simulate the connection rigidity of sub frames on both sides of a front suspension to the vehicle body in the suspension system.
It should be understood that for simplicity of the drawing, only the bracket assembly mounted on the left side of the drawing for simulating the rigidity of the connection of the side subframe to the vehicle body is labeled in fig. 1, and the bracket assembly mounted on the right side of the drawing for simulating the rigidity of the connection of the side subframe to the vehicle body is not labeled. The corresponding descriptions below with respect to the left side bracket assembly apply equally to the right side bracket assembly, unless otherwise noted.
As for the rack assembly on the left side, it may include rack 1, rack 2 and rack 3, which may have the same or similar structural configuration. By way of example only, as shown in fig. 2 and 4, for the support 1, the top 12 thereof may be fixedly connected to the cross beam 5 of the base 4, for example, by providing a plurality of bolt holes 13 on the top 12 (for example, two, three, four or more, the specific number, arrangement position, size and the like of which can be flexibly set according to the actual application), and then fixing the top 12 to the cross beam 5 by using bolts. Of course, the invention also allows the above-mentioned brackets to be fixed to the cross beam 5 of the base 4 by other connection means, such as welding, riveting, etc.
As further shown in fig. 2 to 5, a spring 6 and an additional member 8 may be provided on the bottom 11 of the stand 1. One or more springs 6 can be arranged on the bottom 11 according to the actual application requirement so as to provide the vertical stiffness of the suspension system connected to the vehicle body to be simulated at the position, and the specific arrangement number, arrangement position, type and the like of the springs 6 can be flexibly selected and set according to specific situations.
For example, in the illustrated embodiment, the springs 6 may be arranged in 4 groups, and the 4 groups of springs 6 are uniformly arranged on the periphery of the bottom 11 of the bracket 1, wherein each group comprises 2 springs 6 arranged on the front and back sides of the bottom 11, so as to simulate the vertical stiffness of the left-side sub-frame connected with the vehicle body at the mounting position of the bracket 1. By way of illustration, the spring 6 may be a diaphragm spring 6, but other types of springs may be used.
The additional part 8 is arranged to exert a pretension force against the spring 6, which pretension force will be used to provide a torque generated by the suspension system in the mounted position of the bracket 1. In practice, one or more connectors 7 may be used to connect the additional member 8, the spring 6 and the bottom 11 of the bracket 1, and such connectors 7 include, but are not limited to, bolts, nuts, etc.
Without departing from the gist of the invention, the invention allows completely the flexible configuration of the shape of the additional component 8, so as to be able to better meet the requirements of the actual application. For example, in an alternative case, the additional member 8 may be configured in a plate shape, and the length a of the additional member 8 may be determined according to the longitudinal bending rigidity of the suspension system at the mounting position of the bracket 1, and the width b of the additional member 8 may be determined according to the lateral bending rigidity of the suspension system at the mounting position of the bracket 1.
Further, in an alternative case, a connecting portion 81 may be provided on the additional member 8 so that an external test piece for performing a suspension test can be attached to the additional member 8 through the connecting portion 81. For example, the connection portion 81 may have a screw hole structure, so that the external test piece may be easily and flexibly screwed to the additional member 8.
As previously mentioned, a bracket assembly may be arranged on the other side of the base 4 in the same or similar manner to simulate the right subframe to body stiffness. In the above way, the embodiment of the vehicle body rigidity simulation system can be applied to the suspension test.
Of course, it should be understood that when it is only necessary to simulate the stiffness of the connection of the subframe to the vehicle body on one side of the front suspension, it is possible to arrange only one set of bracket assemblies on that side of the base 4, without also arranging one set of bracket assemblies on the other side of the base 4. Furthermore, in some applications it is also possible to arrange three or more rack assemblies on the base 4 to accommodate different testing requirements.
In addition, the cross beams 5 on the base 4 can be implemented in various structural forms, so that one or more bracket assemblies can be mounted and arranged separately or simultaneously.
By means of the vehicle body rigidity simulation function provided by the system, effective simulation of the vertical rigidity and the bending rigidity of the vehicle body can be realized, peak load can be obviously reduced, reproduction of road test signals is facilitated, and iteration accuracy is improved. The vehicle body rigidity simulation system has the advantages of simple and compact structure, easiness in implementation, rapidness and high efficiency in simulation test and the like, so that the vehicle body rigidity simulation system has good practicability and reliability.
The vehicle body rigidity simulation system for suspension test according to the present invention has been explained in detail above by way of examples only, and these examples are provided only for illustrating the principle of the present invention and its embodiments, not for limiting the present invention, and those skilled in the art can make various modifications and improvements without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to be included within the scope of this invention and defined in the claims which follow.
Claims (10)
1. A body stiffness simulation system for suspension testing, comprising:
a base provided with a cross beam; and
at least one bracket assembly comprising three brackets, wherein the top of each bracket is secured to the cross beam and the bottom is provided with one or more springs arranged to provide a vertical stiffness at a location of a suspension system attached to a vehicle body to be simulated, and an additional component applying a pretension against the springs for providing a torque generated by the suspension system at the location.
2. The vehicle body rigidity simulation system according to claim 1, wherein the vehicle body rigidity simulation system includes a first bracket assembly and a second bracket assembly that are arranged on a cross member of the base, for simulating connection rigidity of sub frames on both sides of a front suspension in the suspension system to a vehicle body, respectively.
3. A vehicle body rigidity simulation system according to claim 1, wherein the additional member is configured in a plate shape, and a length and a width of the additional member are determined in accordance with a longitudinal bending rigidity and a lateral bending rigidity of the suspension system at a position thereof, respectively.
4. The vehicle body rigidity simulation system according to claim 1, wherein the additional member is provided with a connection portion configured to connect an external test piece subjected to a suspension test.
5. The vehicle body rigidity simulation system according to claim 4, wherein the connection portion is a screw hole.
6. The vehicle body stiffness simulation system according to claim 1, wherein the bottom of the bracket, the spring, and the additional member are connected together by one or more connectors.
7. The vehicle body stiffness simulation system according to claim 6, wherein the connection member includes a bolt and a nut.
8. The vehicle body stiffness simulation system according to claim 1, wherein the springs are provided with 4 sets and are uniformly distributed on the periphery of the bottom, wherein each set includes 2 springs disposed on both sides of the bottom.
9. The vehicle body stiffness simulation system according to any one of claims 1 to 8, wherein the spring is a diaphragm spring.
10. A vehicle body stiffness simulation system according to any one of claims 1 to 8, wherein the roof portion is provided with 4 bolt holes, and the roof portion is fixed to the cross member by 4 bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002013.7A CN110873650B (en) | 2018-08-30 | 2018-08-30 | Vehicle body rigidity simulation system for suspension test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811002013.7A CN110873650B (en) | 2018-08-30 | 2018-08-30 | Vehicle body rigidity simulation system for suspension test |
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| Publication Number | Publication Date |
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| CN110873650A true CN110873650A (en) | 2020-03-10 |
| CN110873650B CN110873650B (en) | 2021-11-16 |
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| CN201811002013.7A Active CN110873650B (en) | 2018-08-30 | 2018-08-30 | Vehicle body rigidity simulation system for suspension test |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017488Y (en) * | 2007-03-24 | 2008-02-06 | 管文礼 | Electric-controlled air spring experimental device of sedan car |
| RU78938U1 (en) * | 2008-04-04 | 2008-12-10 | Государственное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" | STAND FOR TESTING REAR SEMI-INDEPENDENT SUSPENSION FOR Torsional stiffness |
| CN203811385U (en) * | 2014-03-24 | 2014-09-03 | 上海汇众汽车制造有限公司 | Torsion beam rear axle multichannel road simulation test variable stiffness floating test clamp |
| CN104034535A (en) * | 2014-06-18 | 2014-09-10 | 上海理工大学 | Variable-stiffness virtual vehicle body |
| CN104048823A (en) * | 2014-07-09 | 2014-09-17 | 上海理工大学 | Rigidity-variable virtual vehicle body clamp suspension test bed |
| CN105738129A (en) * | 2016-04-25 | 2016-07-06 | 山东交通学院 | Automotive independent suspension vibration simulating device |
-
2018
- 2018-08-30 CN CN201811002013.7A patent/CN110873650B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201017488Y (en) * | 2007-03-24 | 2008-02-06 | 管文礼 | Electric-controlled air spring experimental device of sedan car |
| RU78938U1 (en) * | 2008-04-04 | 2008-12-10 | Государственное образовательное учреждение высшего профессионального образования "Тольяттинский государственный университет" | STAND FOR TESTING REAR SEMI-INDEPENDENT SUSPENSION FOR Torsional stiffness |
| CN203811385U (en) * | 2014-03-24 | 2014-09-03 | 上海汇众汽车制造有限公司 | Torsion beam rear axle multichannel road simulation test variable stiffness floating test clamp |
| CN104034535A (en) * | 2014-06-18 | 2014-09-10 | 上海理工大学 | Variable-stiffness virtual vehicle body |
| CN104048823A (en) * | 2014-07-09 | 2014-09-17 | 上海理工大学 | Rigidity-variable virtual vehicle body clamp suspension test bed |
| CN105738129A (en) * | 2016-04-25 | 2016-07-06 | 山东交通学院 | Automotive independent suspension vibration simulating device |
Non-Patent Citations (1)
| Title |
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| 席玉林等: "自动平衡悬架的受力分析及模型验证", 《汽车零部件》 * |
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