CN111638069A - Coupling lateral force eliminating device for tire rigidity test bed - Google Patents

Coupling lateral force eliminating device for tire rigidity test bed Download PDF

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Publication number
CN111638069A
CN111638069A CN202010718836.0A CN202010718836A CN111638069A CN 111638069 A CN111638069 A CN 111638069A CN 202010718836 A CN202010718836 A CN 202010718836A CN 111638069 A CN111638069 A CN 111638069A
Authority
CN
China
Prior art keywords
pavement
road
lateral force
test
tire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010718836.0A
Other languages
Chinese (zh)
Inventor
卢荡
索艳茹
马尧
刘前进
邓宝岳
王昊斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jilin University
Original Assignee
Jilin University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jilin University filed Critical Jilin University
Priority to CN202010718836.0A priority Critical patent/CN111638069A/en
Publication of CN111638069A publication Critical patent/CN111638069A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/02Tyres
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/02Tyres
    • G01M17/021Tyre supporting devices, e.g. chucks

Abstract

The invention discloses a coupling lateral force eliminating device for a tire rigidity test bed, which comprises a test bed main frame, a pavement rotating bracket, a servo motor capable of controlling lateral movement of a test pavement in real time, a fixed pavement and a movable pavement, wherein the servo motor is arranged on the pavement rotating bracket; the road surface rotating support is connected to the main frame of the tire rigidity test bed through a bearing, and a servo motor capable of controlling the lateral movement of the test road surface in real time is fixed at the end of the fixed road surface to control the movement of the movable road surface. The invention has simple structure, the servo motor responds in real time to solve the problem that the lateral force changes along with the sinking amount, the coupling lateral force is eliminated to realize accurate rigidity test, the pavement design is ingenious and reasonable, the moving pavement rotates along with the pavement rotating bracket, the simulation of the side rolling motion of the tire is realized, and the movement of the pavement is ensured not to influence the vertical load.

Description

Coupling lateral force eliminating device for tire rigidity test bed
Technical Field
The invention relates to the field of tire rigidity testing equipment, in particular to a coupling lateral force eliminating device for a tire rigidity testing stand.
Background
The tire rigidity mechanical property can be used for building a tire model and has important significance for the complete vehicle dynamics simulation. The tire rigidity test bed is an important device for acquiring the mechanical characteristics of the tire rigidity.
The six-component characteristic of the tire has strong coupling, so that unexpected force is generated in the tire rigidity testing process, and the testing result is affected. The influence of coupling lateral force is particularly prominent in the roll stiffness test process, the roll stiffness test expects to obtain the relation between vertical force and subsidence, and the roll stiffness test cannot have the effect of other directional forces, but because of the existence of the roll angle, the lateral force can be generated between the tire and the road surface in the test process, and the magnitude changes along with the change of subsidence. The lateral force influence of the process is neglected in the current tire rigidity testing machine.
Disclosure of Invention
To overcome the above-described deficiencies of the prior art, the present invention provides a coupled lateral force cancellation device for a tire stiffness test stand. The device can realize the simulation of the side-rolling movement of the tire, and controls the lateral displacement of the road surface in the test process in real time so as to achieve the aim of eliminating the coupling lateral force.
A coupling lateral force eliminating device for a tire rigidity test bed comprises a test bed main frame, a pavement rotating bracket, a servo motor capable of controlling lateral movement of a test pavement in real time, a fixed pavement and a movable pavement; the road surface rotating support is connected to the main frame of the tire rigidity test bed through a bearing, and a servo motor capable of controlling the lateral movement of the test road surface in real time is fixed at the end of the fixed road surface to control the movement of the movable road surface.
Compared with the prior art, the invention has the beneficial effects that:
1. the structure is simple, the servo motor responds in real time to solve the problem that the lateral force changes along with the sinking amount, and the coupling lateral force is eliminated to realize accurate rigidity test.
2. The road surface design is ingenious and reasonable, the moving road surface rotates along with the road surface rotating support, the tire rolling motion simulation is realized, and meanwhile, the moving of the road surface is ensured not to influence the vertical load.
Drawings
FIG. 1 is a comparison of the lateral force curves with and without a coupled lateral force cancellation device during the same tire roll stiffness test.
Fig. 2 is a comparison of roll stiffness curves with and without a coupled lateral force cancellation device during the same tire roll stiffness test.
Fig. 3 is a schematic view of the overall structure of the present invention.
Detailed Description
As shown in fig. 3, a coupling lateral force eliminating device for a tire rigidity test bed comprises a test bed main frame 1, a road surface rotating bracket 2, a servo motor 3 capable of controlling the lateral movement of a test road surface in real time, a fixed road surface 4 and a movable road surface 5; the road surface rotating support 2 is connected to the main frame 1 of the test bed through a bearing, and a servo motor 3 capable of controlling the lateral movement of the test road surface in real time is fixed on a fixed road surface 4 to control the movement of a movable road surface 5.
The working principle of the invention is as follows:
as shown in fig. 1, the same tire finite element model is used for roll stiffness simulation, the road surface friction coefficient is set to be 1 to simulate a stiffness test bed without using a coupling lateral force eliminating device, the road surface friction coefficient is set to be 0 to simulate the stiffness test bed with using the coupling lateral force eliminating device, and the simulation result shows that the lateral force generated without using the coupling lateral force eliminating device is large and changes along with the change of the sinking amount.
As shown in fig. 2, the same tire finite element model is used for roll stiffness simulation, the road surface friction coefficient is set to be 1 to simulate a stiffness test bed without using a coupling lateral force eliminating device, the road surface friction coefficient is set to be 0 to simulate the stiffness test bed using the coupling lateral force eliminating device, and the roll stiffness curves obtained by the two modes are obviously different according to simulation results.
As shown in fig. 3, when the rolling rigidity test of the tire is performed, the road surface rotation bracket 2 fixed to the test stand main frame 1 is rotated around the axis to simulate the rolling movement of the tire. In the roll stiffness test process, lateral force is generated after the tire is in contact with the moving road surface 5, at the moment, the servo motor 3 capable of controlling the lateral movement of the test road surface in real time adjusts the lateral movement of the moving road surface 5 according to the lateral force measured by equipment, the lateral force is kept to be 0, and an accurate roll stiffness curve is obtained. Because the vertical force in the calculation process of the roll stiffness of the tire is the force vertical to the road surface, the vertical force in the lateral moving process of the moving road surface 5 is not influenced.

Claims (1)

1. A coupling lateral force eliminating device for a tire rigidity test bed is characterized in that: the device comprises a test bed main frame (1), a pavement rotating bracket (2), a servo motor (3) capable of controlling the lateral movement of a test pavement in real time, a fixed pavement (4) and a movable pavement (5); the road surface rotating support (2) is connected to the main frame (1) of the test bed through a bearing, and the moving road surface (5) rotates along with the rotation of the road surface rotating support (2); the servo motor (3) capable of controlling the lateral movement of the test pavement in real time is fixed on the fixed pavement (4) and controls the movement of the movable pavement (5).
CN202010718836.0A 2020-07-23 2020-07-23 Coupling lateral force eliminating device for tire rigidity test bed Pending CN111638069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010718836.0A CN111638069A (en) 2020-07-23 2020-07-23 Coupling lateral force eliminating device for tire rigidity test bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010718836.0A CN111638069A (en) 2020-07-23 2020-07-23 Coupling lateral force eliminating device for tire rigidity test bed

Publications (1)

Publication Number Publication Date
CN111638069A true CN111638069A (en) 2020-09-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010718836.0A Pending CN111638069A (en) 2020-07-23 2020-07-23 Coupling lateral force eliminating device for tire rigidity test bed

Country Status (1)

Country Link
CN (1) CN111638069A (en)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008089467A (en) * 2006-10-03 2008-04-17 Kobe Steel Ltd Method for inspecting precision of tire testing machine
CN102393309A (en) * 2011-08-25 2012-03-28 吉林大学 Tyre coupling stiffness testing machine
CN103620367A (en) * 2011-06-23 2014-03-05 株式会社普利司通 Tire testing device
CN104729862A (en) * 2015-03-19 2015-06-24 南京航空航天大学 Tire stiffness testing device
CN205300941U (en) * 2016-01-15 2016-06-08 陕西理工学院 Tire test atress platform
CN109991021A (en) * 2017-12-29 2019-07-09 上汽通用五菱汽车股份有限公司 A kind of multi-angle tire dynamic rate experimental rig
CN110455557A (en) * 2019-08-13 2019-11-15 燕山大学 A kind of static tire vertical stiffness test device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008089467A (en) * 2006-10-03 2008-04-17 Kobe Steel Ltd Method for inspecting precision of tire testing machine
CN103620367A (en) * 2011-06-23 2014-03-05 株式会社普利司通 Tire testing device
CN102393309A (en) * 2011-08-25 2012-03-28 吉林大学 Tyre coupling stiffness testing machine
CN104729862A (en) * 2015-03-19 2015-06-24 南京航空航天大学 Tire stiffness testing device
CN205300941U (en) * 2016-01-15 2016-06-08 陕西理工学院 Tire test atress platform
CN109991021A (en) * 2017-12-29 2019-07-09 上汽通用五菱汽车股份有限公司 A kind of multi-angle tire dynamic rate experimental rig
CN110455557A (en) * 2019-08-13 2019-11-15 燕山大学 A kind of static tire vertical stiffness test device

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DANG LU: "Study on the influence of tire pressure to tire mechanical properties", 《IET INTERNATIONAL CONFERENCE ON INTELLIGENT AND CONNECTED VEHICLES (ICV 2016)》 *
卢荡: "磨损对轮胎侧偏刚度和回正刚度影响的研究", 《机械工程学报》 *

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