CN103577669B - Method for processing nonlinear stiffness data of suspension systems of power assemblies of automobiles - Google Patents
Method for processing nonlinear stiffness data of suspension systems of power assemblies of automobiles Download PDFInfo
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- CN103577669B CN103577669B CN201210262374.1A CN201210262374A CN103577669B CN 103577669 B CN103577669 B CN 103577669B CN 201210262374 A CN201210262374 A CN 201210262374A CN 103577669 B CN103577669 B CN 103577669B
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Abstract
The invention relates to a method for processing nonlinear stiffness data of suspension systems of power assemblies of automobiles. The method includes steps of 1), enabling a data input module to input suspension static stiffness data, suspension static force data of the power assemblies, maximum displacement data of compression directions under extreme working conditions and maximum displacement data of stretching directions under the extreme working conditions into a data processing module; 2), enabling the data processing module to determine static points; 3), enabling the data processing module to adjust correction parameters of the compression directions and correction parameters of the stretching directions until nonlinear stiffness curve data meeting limit requirements of the extreme working conditions are obtained; 4), enabling the data processing module to output expressions of nonlinear stiffness curves to a data output module; 5), utilizing data of the expressions of the nonlinear stiffness curves for designing the suspension systems of the power assemblies of the automobiles by the aid of the data output module. Compared with the prior art, the method has the advantages of capability of effectively reducing computation workload, simplicity and convenience in operation, and the like.
Description
Technical field
The present invention relates to a kind of method in automobile power assembly suspension system field, especially relate to a kind of automobile power total
Become suspension system non-linear rigidity data processing method.
Background technology
Increasingly lifted with quality of the life with scientific and technological progress, people require more and more higher, good vibration to automotive quality
Noise is just becoming the important indicator to automobile evaluation for the client.The reason cause automobile vibration noise is a lot, and wherein power assembly is
Main vibration noise source.Suspension system will directly influence automobile as the Major Systems of isolation vibration, the quality of its design
Ride comfort performance.The non-linear rigidity design of suspension system is one of design on Mounting System important content, reasonably
Suspension system non-linear rigidity (Nonlinear stiffness) design enables good vibration isolation and position-limiting action.In power
In assembly suspension non-linear rigidity design process, the working condition in different elastic axis directions is different, accordingly spacing requirement
Differ, the therefore selection of the non-linear rigidity of suspension and flex point coordinate will require according to the actual techniques of suspension, evaluation work
Amount is very big.
Content of the invention
The purpose of the present invention is exactly to overcome the defect of above-mentioned prior art presence to provide one kind to be effectively reduced meter
The easier automobile power assembly suspension system of operator workload, design easy and simple to handle, making automobile power assembly suspension system
Non-linear rigidity data processing method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of automobile power assembly suspension system non-linear rigidity data processing method, comprises the following steps：
1) data input module is by under the Static stiffness data suspending, the static force data of dynamic assembly suspension, limiting condition
The maximum displacement data input data processing module of draw direction under the maximum displacement data of compression direction and limiting condition；
2) data processing module obtains static state according to the Static stiffness data of suspension and the static force data of dynamic assembly suspension
The position of point；
3) data processing module is according to draw direction under the maximum displacement data of compression direction under limiting condition, limiting condition
Maximum displacement number and static point position adjust the corrected parameter of compression direction and the corrected parameter of draw direction respectively, until
It is met the non-linear rigidity curve data of the spacing requirement of limiting condition；
4) described non-linear rigidity curve data is carried out fitting of a polynomial by data processing module, obtains non-linear rigidity bent
The expression formula of line：F (x)=a0xn+a1xn-1+…+an-1x+an, and this expression formula is transferred to data outputting module；
5) data outputting module by the expression formula data output of non-linear rigidity curve and is used for automobile power assembly suspending
The design of system.
The Static stiffness data of described suspension is according to power assembly quality, rotary inertia, suspension bullet under car load coordinate system
Property center and power assembly barycenter coordinate, and to suspend vibration isolation rate, Modes Decoupling rate and lateral rotation frequency or to longitudinally rotate frequency
Rate is that optimization aim is calculated.
The corrected parameter of described compression direction with the relation of non-linear rigidity curve is：Change parameter with compression direction
Increase, the non-linear section slope of non-linear rigidity curve increases, and linear segment length shortens；
The corrected parameter of described draw direction with the relation of non-linear rigidity curve is：Change parameter with draw direction
Increase, the non-linear section slope of non-linear rigidity curve increases, and linear segment length shortens.
Compared with prior art, the present invention does not need to carry out loaded down with trivial details evaluation work, only need to determine automobile suspended system
Design parameter and client to the design requirement of power assembly suspension system can to power assembly suspension system non-linear just
Degree is looked after and guided and is designed, and effectively reduces the transient error occurring in design amount of calculation and design process, easy and simple to handle,
Make the design of automobile power assembly suspension system easier.
Brief description
Fig. 1 is the schematic flow sheet of the inventive method；
Fig. 2 is the impact schematic diagram to non-linear rigidity curve for the corrected parameter of compression direction；
Fig. 3 is the impact schematic diagram to non-linear rigidity curve for the corrected parameter of draw direction.
Specific embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As shown in figure 1, a kind of automobile power assembly suspension system non-linear rigidity data processing method, walk including following
Suddenly：
1) data input module is by under the Static stiffness data suspending, the static force data of dynamic assembly suspension, limiting condition
The maximum displacement data input data processing module of draw direction under the maximum displacement data of compression direction and limiting condition.
2) data processing module obtains static state according to the Static stiffness data of suspension and the static force data of dynamic assembly suspension
The position of point, the Static stiffness data of suspension is according to power assembly quality, rotary inertia, suspension elastic center under car load coordinate system
With power assembly barycenter coordinate, and to suspend vibration isolation rate, Modes Decoupling rate and lateral rotation frequency or to longitudinally rotate frequency be excellent
Change target calculated, in the case that static force data is constant, change static rigidity, the linearity range of non-linear rigidity curve
Slope changes, and the position of static point also changes.
3) data processing module is according to draw direction under the maximum displacement data of compression direction under limiting condition, limiting condition
Maximum displacement number and static point position adjust the corrected parameter of compression direction and the corrected parameter of draw direction respectively, until
It is met the non-linear rigidity curve data of the spacing requirement of limiting condition：
The corrected parameter of compression direction with the relation of non-linear rigidity curve is：Change the increasing of parameter with compression direction
Greatly, the non-linear section slope of non-linear rigidity curve increases, and linear segment length shortens.As shown in Fig. 2 Reasonable adjustment corrected parameter
Value, can avoid because the too short anti-vibration performance having influence on high band of linear rigidity section.When changing parameter for 0.25, linearly just
Degree section can meet design requirement；When changing parameter and being 0.23, when load is very big, spacing displacement is not enough it is clear that not reaching design
Require；When changing parameter for 0.27, spacing requirement can be met, but the linear rigidity section working is shorter, such automobile is in 4 gears
When suspension rigidity enter non-linear section, be unfavorable for high-frequency vibration isolation.
The corrected parameter of draw direction with the relation of non-linear rigidity curve is：Change the increasing of parameter with draw direction
Greatly, the non-linear section slope of non-linear rigidity curve increases, and linear segment length shortens.As shown in figure 3, when modification parameter is 0.32
When, linear rigidity section can meet design requirement；When changing parameter and being 0.29, when load is very big, spacing displacement is not enough it is clear that reaching
Less than design requirement；When changing parameter for 0.35, spacing requirement can be met, but the linear rigidity section working is shorter, unfavorable
In high-frequency vibration isolation.
4) described non-linear rigidity curve data is carried out fitting of a polynomial by data processing module, obtains non-linear rigidity bent
The expression formula of line：F (x)=a0xn+a1xn-1+…+an-1x+an, and this expression formula is transferred to data outputting module.
5) data outputting module by the expression formula data output of non-linear rigidity curve and is used for automobile power assembly suspending
The design of system.
This method does not need to carry out loaded down with trivial details evaluation work, only need to determine design parameter and the client of automobile suspended system
The design requirement of power assembly suspension system can be looked after and guided to the non-linear rigidity of power assembly suspension system and is designed,
Effectively reduce the transient error occurring in design amount of calculation and design process, easy and simple to handle, automobile power assembly suspending
The design of system is more convenient, accurate.
Claims (2)
1. a kind of automobile power assembly suspension system non-linear rigidity data processing method is it is characterised in that comprise the following steps：
1) data input module will compress under the Static stiffness data suspending, the static force data of dynamic assembly suspension, limiting condition
The maximum displacement data input data processing module of draw direction under the maximum displacement data in direction and limiting condition；
2) data processing module obtains static point according to the Static stiffness data of suspension and the static force data of dynamic assembly suspension
Position；
3) data processing module is according to draw direction under the maximum displacement data of compression direction under limiting condition, limiting condition
Big displacement number and static point position adjust the corrected parameter of compression direction and the corrected parameter of draw direction, respectively until obtaining
Meet the non-linear rigidity curve data of the spacing requirement of limiting condition；
4) described non-linear rigidity curve data is carried out fitting of a polynomial by data processing module, obtains non-linear rigidity curve
Expression formula：F (x)=a0xn+a1xn-1+…+an-1x+an, and this expression formula is transferred to data outputting module；
5) data outputting module by the expression formula data output of non-linear rigidity curve and is used for automobile power assembly suspension system
Design；
The corrected parameter of described compression direction with the relation of non-linear rigidity curve is：Change the increasing of parameter with compression direction
Greatly, the non-linear section slope of non-linear rigidity curve increases, and linear segment length shortens；
The corrected parameter of described draw direction with the relation of non-linear rigidity curve is：Change the increasing of parameter with draw direction
Greatly, the non-linear section slope of non-linear rigidity curve increases, and linear segment length shortens.
2. a kind of automobile power assembly suspension system non-linear rigidity data processing method according to claim 1, it is special
Levy and be, the Static stiffness data of described suspension is according to power assembly quality, rotary inertia, suspension elasticity under car load coordinate system
Center and power assembly barycenter coordinate, and to suspend vibration isolation rate, Modes Decoupling rate and lateral rotation frequency or to longitudinally rotate frequency
Calculated for optimization aim.
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| CN201210262374.1A CN103577669B (en) | 2012-07-26 | 2012-07-26 | Method for processing nonlinear stiffness data of suspension systems of power assemblies of automobiles |
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| CN201210262374.1A CN103577669B (en) | 2012-07-26 | 2012-07-26 | Method for processing nonlinear stiffness data of suspension systems of power assemblies of automobiles |
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| CN103577669B true CN103577669B (en) | 2017-02-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104679980B (en) * | 2014-11-29 | 2018-03-16 | 华晨汽车集团控股有限公司 | A kind of arrangement calculation and check method based on automobile suspended system |
| CN105351424A (en) * | 2015-11-17 | 2016-02-24 | 华晨汽车集团控股有限公司 | Optimizing and designing system for dynamic property of fluidic-resistance suspension of automobile powertrain |
| CN106570220B (en) * | 2016-10-18 | 2019-07-02 | 重庆大学 | Hydraulic mount parameter identification method based on genetic algorithm |
| CN106934127B (en) * | 2017-02-28 | 2020-06-23 | 江铃汽车股份有限公司 | Method for acquiring stress state of metal framework of power assembly suspension system |
| CN116383972B (en) * | 2023-06-05 | 2023-08-11 | 江铃汽车股份有限公司 | Suspension system rigidity curve structure design method and device |
| CN116429323B (en) * | 2023-06-07 | 2023-09-01 | 江铃汽车股份有限公司 | Method for detecting sealing performance of automobile hydraulic suspension |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5880362A (en) * | 1995-09-06 | 1999-03-09 | Engineering Technology Associates, Inc. | Method and system for simulating vehicle and roadway interaction |
| CN202180736U (en) * | 2011-07-31 | 2012-04-04 | 长城汽车股份有限公司 | Bush assembly of automobile suspension |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002090105A1 (en) * | 2001-05-10 | 2002-11-14 | University Of Toledo | Actively controlled impact elements |
-
2012
- 2012-07-26 CN CN201210262374.1A patent/CN103577669B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5880362A (en) * | 1995-09-06 | 1999-03-09 | Engineering Technology Associates, Inc. | Method and system for simulating vehicle and roadway interaction |
| CN202180736U (en) * | 2011-07-31 | 2012-04-04 | 长城汽车股份有限公司 | Bush assembly of automobile suspension |
Non-Patent Citations (1)
| Title |
|---|
| 《汽车动力总成悬置系统的非线性刚度设计方法》;吕兆平，杨晓;《汽车工程》;20110731;第33卷(第7期);前言，第1-3节 * |
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