CN203528237U - Vehicle suspension structure with inerter - Google Patents
Vehicle suspension structure with inerter Download PDFInfo
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- CN203528237U CN203528237U CN201320609519.0U CN201320609519U CN203528237U CN 203528237 U CN203528237 U CN 203528237U CN 201320609519 U CN201320609519 U CN 201320609519U CN 203528237 U CN203528237 U CN 203528237U
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- vehicle suspension
- inerter
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Abstract
The utility model provides a vehicle suspension structure with an inerter. Based on a novel electromechanical comparison principle, the inerter, corresponding to a capacitor in a circuit element, in a mechanical element is applied to a vehicle suspension vibration isolation system. In order to solve the problem that overloading is invalid due to the fact that a passive mechanical element bears the vehicle body weight, parallel springs serve as structure foundations, the vehicle suspension structure is characterized in that the inerter is connected with a damping device in series and then connected with a spring element in parallel. The vehicle suspension structure is simple in structure, the virtual inertia effect of increasing the sprung mass is achieved while the vehicle body weight is not increased, and the traveling smoothness and the operation stability of a vehicle can be improved. Through simulated analysis, a vehicle suspension of the structure is used, smoothness evaluation indexes including a vehicle body accelerated speed root-mean-square value, a suspension movable stroke root-mean-square value and a tire dynamic load root-mean-square value are decreased, and the certain application value is achieved.
Description
Technical field
The utility model relates to a kind of Pendant Structure Of Vehicle, refers in particular to a kind of Pendant Structure Of Vehicle of being used to container that contains.
Background technology
1, electromechanical analogy is theoretical
Research is found, mechanical system and corresponding Circuits System, and the math modeling under harmonic excitation condition (describing the differential equation or the transfer function of their dynamic characteristicss) has identical form, can set up corresponding simulative relation thus.
Once proposed in history two class electromechanical analogies theoretical, the first kind is similar with " power-voltage ", and " speed-electric current " is similar is basis, finds that quality, damping, the spring in mechanical element is corresponding with inductance, resistance, electric capacity in circuit component.Equations of The Second Kind is similar with " power-electric current ", and " speed-voltage " similar is basis, thinks that quality in mechanical element, damping, spring are corresponding to the electric capacity in circuit component, resistance, inductance.Yet the single-ended dot characteristics of mass elements requires corresponding cond must make grounding, has produced thus the phenomenon of incomplete correspondence.
Equations of The Second Kind electromechanical analogy that the proposition of the concept of " being used to matter " is perfect is theoretical, and the generation of being used to case has solved single-ended point mass element and in mechanical theory of vibration isolation, applied the problem being restricted.The two-end-point characteristic of being used to container makes the be used to container, damping, spring in mechanical element realize complete corresponding with electric capacity, resistance, inductance in circuit component.Theoretical contrast figure is as shown in table 1 in new electromechanical analogy:
The theoretical contrast figure of the new electromechanical analogy of table 1
Kinetic description and the way of realization of 2, being used to container
Be used to the spring element of case in mechanical system the same with damping element, all belong to the passive mechanical element of two-end-point.When a pair of masterpiece is used for two-end-point, acceleration/accel and the power of two-end-point are proportional, and this ratio value is constant, is called " being used to matter coefficient ".Its dynam expression formula is
f is the suffered a pair of power of two-end-point; B is for being used to matter coefficient; v
2and v
1for the corresponding speed of two-end-point.
Being used to the inherence of container is transmission device, inertial mechanism and end points form.At present, transmission device mainly contains: pinion and-rack transmission, ball screw assembly, formula are passed on Gong, the transmission of Hydraulic Pump formula, hydraulic piston type transmission, the transmission of gear torsional formula and lever transmission etc.; Inertial mechanism mainly contains: the rotatory inertia of flywheel and mass or translation inertia etc.; End points form is mainly carried out specific design according to selected transmission device and inertial mechanism.
3, be used to the utilization of container in vehicle suspension
In the basic classification of suspension, active suspension because its cost is high, the shortcoming application widely in vehicle suspension field yet such as large of consuming energy.Semi-active suspension is because stickiness is restricted large-scale application at that time.Therefore traditional passive suspension still has great researching value.The birth of being used to container has caused vibration isolation field scholar's attention greatly, and it is applied in engineering practice widely.As the important structure of vehicle vibration isolation, vehicle suspension becomes one of hot fields of being used to container application naturally.Based on this, the development that is introduced as the passive suspension of vehicle of being used to container has brought the innovation on a field structure.
First Chinese patent 200810123830.8 applies to inertia energy accumulator in Pendant Structure Of Vehicle, has proposed a kind of passive suspension frame structure of two-stage series, and its effect structure can promote suspension property in theory in whole frequency range, has certain meaning.But its parts number is more, the arrangement space of two-stage type structural requirement is larger, has affected greatly the realization of its engineering application.Chinese patent 200910103050.1 has been applied a kind of motion conversion spiral fly wheel device that has, and its rotation by flywheel is amplified quality, obtains " virtual mass ", and its effect is with to be used to container identical.Yet it will be used to case and traditional passive suspension medi-spring and damper and be in parallel, and increase the horizontal space of suspension arrangement, and its three element center is at same axis, and engineering using value still remains to be discussed.How will be used to case and be used successfully in Frequency method, the mechanical vibration insulation structure that proposes a kind of simple possible promotes the performance of suspension, and this problem has obtained numerous scholars' extensive concern.
Summary of the invention
Technical problem to be solved in the utility model is: propose a kind of Pendant Structure Of Vehicle of being used to case that contains, its number of elements is few, simple in structure, be convenient to project installation, and uses the suspension property of this kind of structure effectively to be promoted.
The technical solution that the utility model is taked is: based on the passive suspension damping of tradition and spring two element structure, by practical factors such as contrast element number, effect and project installation, for preventing from being used to container and damping element in the course of the work due to overload " being punctured ", take spring in parallel as architecture basics, take to be used to case and connect with damping, afterwards the structure in parallel with spring element again.Being used to container is coaxial stressed and motion with damping, forms thus a kind of Pendant Structure Of Vehicle of being used to container, damping, spring that contains.
Concrete technical scheme is as follows: a kind of Pendant Structure Of Vehicle of being used to container that contains, by spring, be used to container and three elements of damper form, be used to container in parallel with spring again after connecting with damper; Describedly be used to the upper fulcrum of container and the upper fulcrum of spring is hinged and is connected on vehicle body; The described lower fulcrum of being used to container is connected with damper afterwards and the lower fulcrum of spring is hinged and is connected on wheel.
Further, described in, being used to container and damper is coaxial type mounting structure.The mechanical way of realization of being used to container can be ball screw type or pinion and-rack etc.
The beneficial effects of the utility model are: will be used to case and apply in Pendant Structure Of Vehicle, and when not improving tare, realize " empty inertia " effect that increases spring carried mass, and can improve riding comfort and the road-holding property of vehicle.It is simple in structure, and scheme is pratical and feasible, can effectively overcome the problem of suspension arrangement limited space, and engineering using value is remarkable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is a kind of Pendant Structure Of Vehicle schematic diagram of being used to container that contains of the utility model;
Fig. 2 is traditional passive suspension frame structure schematic diagram;
Fig. 3 is suspension single-wheel illustraton of model;
In figure, 1. spring, is 2. used to container, 3. damper, 4. sprung weight, 5. unsprung weight, 6. tire equivalent spring.
The specific embodiment
In Fig. 1, being used to container 2 is cascaded structure with damping 3, and coaxial stressed and motion.Be used to fulcrum on the upper fulcrum of container 2 and spring 1 and be hinged, and be connected on vehicle body.After the lower fulcrum of being used to container 2 is connected with damper 3 and spring 1 lower fulcrum be hinged and be connected on wheel, complete thus a kind of installation that contains the Pendant Structure Of Vehicle of being used to container.
In Fig. 2, the upper fulcrum of spring 1 and the upper fulcrum of damper 3 are hinged and are connected on vehicle body, and the lower fulcrum lower fulcrum direct and damper 3 of spring 1 is hinged and is connected on wheel.Complete thus the installation of traditional passive suspension frame structure.
In Fig. 3, the upper fulcrum that the utility model contains the Pendant Structure Of Vehicle of being used to container and the lower fulcrum of sprung weight 4 are hinged, and the upper fulcrum of its lower fulcrum and unsprung weight 5 is hinged, and the upper fulcrum of the lower fulcrum of unsprung weight 5 and tire equivalent spring 6 is hinged.
The utility model will be used to case and reasonably be applied to Pendant Structure Of Vehicle, when not improving tare, realize " empty inertia " effect that increases spring carried mass, can improve riding comfort and the road-holding property of vehicle.By the dynamical property analysis to proposed structure, set up its 1/4 car body realistic model, three indexs to evaluation suspension property under random road surface displacement input: vehicle body acceleration root of mean square BA, suspension moving stroke root of mean square SWS, tire live load root of mean square DTL evaluate, and obtain result as shown in table 2:
The contrast of table 2 random road excitation lower suspension single-wheel model system response mean effective value
By contrast, find, compare with the passive suspension of tradition, a kind of moving stroke root of mean square of its vehicle body acceleration root of mean square of vehicle suspension, suspension, tire live load root of mean square of being used to container of containing all reduces to some extent, wherein vehicle body acceleration root of mean square has reduced 2%, the moving stroke root of mean square of suspension has reduced 8%, and tire live load root of mean square has reduced 4%.Its performance is better than traditional passive suspension.
The utility model can reach the impact of performance of semi-active suspension and active suspension by parameter optimization, has saved the cost of semi-active suspension and Active suspension control design, and reliability is high, has engineering application and is worth.
Claims (3)
1. contain a Pendant Structure Of Vehicle of being used to container, it is characterized in that, suspension frame structure by spring (1), be used to container (2) and (3) three elements of damper form, be used to container (2) in parallel with spring (1) again after connecting with damper (3); Describedly be used to the upper fulcrum of container (2) and the upper fulcrum of spring (1) is hinged and is connected on vehicle body; The described lower fulcrum of being used to container (2) is connected with damper (3) afterwards and the lower fulcrum of spring (1) is hinged and is connected on wheel.
2. a kind of Pendant Structure Of Vehicle of being used to container that contains according to claim 1, is characterized in that, the described container (2) of being used to is coaxial type mounting structure with damper (3).
3. a kind of Pendant Structure Of Vehicle of being used to container that contains according to claim 1 and 2, is characterized in that, the described mechanical way of realization of being used to container (2) is ball screw type or pinion and-rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609519.0U CN203528237U (en) | 2013-09-24 | 2013-09-24 | Vehicle suspension structure with inerter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320609519.0U CN203528237U (en) | 2013-09-24 | 2013-09-24 | Vehicle suspension structure with inerter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203528237U true CN203528237U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320609519.0U Expired - Fee Related CN203528237U (en) | 2013-09-24 | 2013-09-24 | Vehicle suspension structure with inerter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203528237U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336573A (en) * | 2017-05-25 | 2017-11-10 | 中国第汽车股份有限公司 | A kind of three mass suspension systems for chassis vibration damping |
| CN108482201A (en) * | 2018-04-19 | 2018-09-04 | 东北大学 | A kind of ISD shock absorbing seats |
-
2013
- 2013-09-24 CN CN201320609519.0U patent/CN203528237U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107336573A (en) * | 2017-05-25 | 2017-11-10 | 中国第汽车股份有限公司 | A kind of three mass suspension systems for chassis vibration damping |
| CN108482201A (en) * | 2018-04-19 | 2018-09-04 | 东北大学 | A kind of ISD shock absorbing seats |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20150924 |
|
| EXPY | Termination of patent right or utility model |