Virtual stand test method for friction performance of brake
A technology for friction performance and bench testing, which is applied to instruments, special data processing applications, electrical digital data processing, etc., and can solve problems such as poor simulation, complicated test methods, and high test investment costs
Inactive Publication Date: 2012-03-28
CHANGAN UNIV
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The technical problem to be solved by the present invention is to provide a virtual bench test method for brake friction performance, which is reasonable in design, low in investment cost, good in simulation effect and easy to use and operate, and can effectively solve the existing problems. The friction coefficient measurement system and method of the brake friction pair have many defects and deficiencies such as high test investment cost, poor simulation, complicated test methods, and long test period.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0062] Such as figure 1 A kind of brake friction performance virtual bench test method shown, comprises the following steps:
[0063] Step 1, determine the functional relationship μ=f(T) between the friction coefficient of the brake friction pair of the brake to be tested-temperature, the brake to be tested is a drum brake or a disc brake, and the determination process is as follows:
[0064] 101. Establish a three-dimensional geometric model: according to the assembly structure of the tested brake, and use CAD software to establish a three-dimensional geometric model of the tested brake;
[0065] 102. Establish a three-dimensional thermal-mechanical coupling finite element model, and the modeling process is as follows:
[0066] 1021. Import the three-dimensional geometric model described in step 1 into multi-field coupling analysis software; in this embodiment, the multi-field coupling analysis software is ADINA software;
[0067] 1022. Under the multi-field coupling analys...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a virtual stand test method for the friction performance of a brake. The method comprises the following steps of: 1, determining functional relation between the friction coefficient of the tested brake and the temperature: mu=f(T), namely establishing a three-dimensional geometric model, establishing a three-dimensional heat-machine coupling finite element model, and performing coupling temperature field emulation analysis on the three-dimensional heat-machine coupling finite element model to obtain the functional relation between the friction coefficient of the testedbrake and the temperature: mu=f(T); and 2, performing virtual stand test on the friction performance of the tested brake by using a heat fading test method through the following steps of the first heat fading, recovery test and the second heat fading and efficiency test. The method has the advantages of reasonable design, low investment cost, good simulation effect and simple and convenient use and operation, and can effectively overcome various defects and shortcomings of high investment and test cost, relatively poor imitativeness, complex test method, long test period and the like of the conventional system and method for measuring the friction coefficient of the friction pair of the brake.
Description
technical field [0001] The invention belongs to the technical field of brake friction performance measurement and determination, in particular to a virtual bench test method for brake friction performance. Background technique [0002] At present, the measurement and determination of the friction coefficient of the brake friction pair are mainly determined by the following three methods, namely the small sample friction test, the real sample friction test and the inertial bench test method. The common feature of the above three test methods is that they all rely on correlation equipment, but according to different application purposes, they have different characteristics. [0003] Among them, the small-sample friction test is a constant-speed friction test performed by a constant-speed friction testing machine, which is mainly used for quality control of lining (block) products based on relevant standards, screening and adjustment of friction material formulations, and frict...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 赵凯辉魏朗刘华峰陈涛袁望方
Owner CHANGAN UNIV