Analysis on temperature field of friction pair of aviation friction clutch based on different groove shapes of friction disk

2021 ◽  
Author(s):  
Heyun Bao ◽  
Weidi Kong ◽  
Xiaonan Hou ◽  
Rupeng Zhu
Keyword(s):  
Temperature Field ◽  
Friction Pair ◽  
Friction Disk ◽  
Friction Clutch

Evaluation of the Transient Temperature Distribution of End-Face Sliding Friction Pair Using Infrared Thermometry

2014 ◽  
Vol 613 ◽  
pp. 213-218
Author(s):  
Wei Wei ◽  
Jian Wei Yu ◽  
Tao You ◽  
Xiao Fen Yu ◽  
Yong Hong Wang
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
Measurement System ◽  
Sliding Friction ◽  
Friction Pair ◽  
Dynamic Performance ◽  
Constant Load ◽  
Interface Temperature ◽  
Transient Temperature ◽  
Ir Thermography

A real-time temperature measurement system was designed for end-face sliding friction pairs with an infrared (IR) probe and IR thermography installed on it. The approximate temperature of contact surface was measured by the probe while non-contact surface’s temperature distribution was determined with the IR thermography. Two experiments with constant load but varied rotational speeds were carried out, and a preliminary study was made to analyze the variation of temperature in the friction process. Furthermore, the probe data was used as thermal load to calculate the temperature field by the FEM model and the result was verified using IR images. The experimental results showed that the infrared measurement system can detect and record the interface-temperature variation accurately. The probe data showed a good dynamic performance with the variation of friction coefficient. In addition, the calculated temperature field showed good accordance with the IR thermography data.

Analysis of Temperature Field and Thermal Deformation for Lubricating Oil Transfer Pump

2012 ◽  
Vol 268-270 ◽  
pp. 1067-1070
Author(s):  
Jian Ning Xu ◽  
Wen Jie Lv ◽  
Bin Zhu ◽  
Duan Yin Zhu ◽  
Yan Xiong Gao
Keyword(s):  
Temperature Field ◽  
Thermal Deformation ◽  
Friction Pair ◽  
Lubricating Oil ◽  
Deformation Analysis ◽  
Analysis Model ◽  
Element Analysis ◽  
Screw Pump ◽  
Pump System ◽  
Twin Screw

Lubricating oil transfer pump is an important function subsystem in twin-screw pump system. The friction pair between Lubrication screw and shell also is heat source of the system, not only affect the temperature field of the subsystem and the whole system, and the excessive thermal deformation itself may exist can also cause drive failure. This paper established the temperature field and thermal deformation analysis model and boundary conditions of the lubrication screw by means of Finite Element Analysis, and analyzed temperature field and thermal deformation of the lubrication screw and shell as the coefficient of convective heat transfer is 1200W/m2∙°C in the oil production process, and proved thermal deformation of the lubrication screw and shell can not affect the normal work of Lubricating oil transfer pump in the condition.

Research on Friction Disk’s Surface Temperature Distribution and Oil Groove Configuration in Wet Friction Clutch

2011 ◽  
Vol 148-149 ◽  
pp. 1218-1222
Author(s):  
Yun Hai Jia
Keyword(s):  
Friction Coefficient ◽  
Surface Temperature ◽  
Disk Surface ◽  
Mechanical Transmission ◽  
Element Analysis ◽  
Radial Temperature ◽  
Wet Friction ◽  
Friction Disk ◽  
Friction Clutch ◽  
Heat Quantity

Multi-plate wet friction clutch is one of key components of duty truck hydrodynamic-mechanical transmission. Super-heated burn and warping deformation are main invalidation forms of wet friction clutch. It is one of effectual methods to augment friction coefficient and prolong natural life of wet friction clutch that friction disks’ surface temperature and radial temperature are reduced. Compute method of friction disk surface temperature is obtained using theory analysis and confirmed correctness using finite element analysis. It is salience character of wet friction clutch that there are some oil grooves in friction disk surface. These oil grooves can increase friction coefficient and emanate heat quantity. Confirming conformable friction disk’s surface oil groove configuration by experiment research is received. It confirmed that the appropriate surface oil groove configuration of friction disk should be double-arc groove.

The Research of the Effect of Velocity on Coupled Temperature Filed in Pin-on-Ring Friction Pair under Electromagnetic Field

2014 ◽  
Vol 941-944 ◽  
pp. 2508-2511
Author(s):  
Qiao Wen ◽  
Lin Dong ◽  
Jie Yang ◽  
Zhei Wei Liu
Keyword(s):  
Electromagnetic Field ◽  
Temperature Field ◽  
Electromagnetic Induction ◽  
Rotation Angle ◽  
Friction Pair ◽  
Analysis Model ◽  
Induction Frequency ◽  
Temperature Filed ◽  
Temperature Field Model ◽  
Variation Rule

Based on the pin-on-ring friction pair jig, the temperature field model was established by FE software ANSYS under the coupled effect of electromagnetic induction heat and friction heat. The coupled temperature field distribution and variation rule of the analysis model were simulated and analyzed under different electromagnetic induction frequency and velocity. The results show that when the rotation angle, stress and electromagnetic induction frequency are constant, the maximum coupled temperature increases linearly with the increment of velocity, and the area of pin temperature gradients narrowed with the increasing velocity; the maximum coupled temperature rises with the increasing electromagnetic induction frequency under the constant rotation angle, stress and velocity. The research will provide FE simulation basis for the controlling of friction and wear by electromagnetic field.

scholarly journals Wear Characteristics of Different Groove-Shaped Friction Pairs of a Friction Clutch

2020 ◽  
Vol 11 (1) ◽  
pp. 284
Author(s):  
Heyun Bao ◽  
Chao Zhang ◽  
Xiaonan Hou ◽  
Fengxia Lu
Keyword(s):  
Adhesive Wear ◽  
Friction Pair ◽  
Wear Test ◽  
Calculation Model ◽  
Wear Model ◽  
Wear Performance ◽  
Friction Clutch ◽  
Wear Calculation ◽  
The Mathematical Model ◽  
Sliding Distance

To investigate the influence of the groove shape of friction disks on the wear of a friction clutch friction pair, a wear calculation model that considers the actual sliding distance between the friction clutch friction pair is presented based on the Archard adhesive wear model. The wear of three different groove-shaped friction pairs was calculated and analyzed. The wear test was carried out on the SAE#2 testing rig to obtain the actual wear amount and verify the accuracy and validity of the mathematical model. The results show that, among the three types of grooves, the friction disks with waffle grooves were the most prone to wear, followed by three-way parallel grooves. The wear performance of the two-way parallel grooves was the best, and the wear from one-time engagement can better reflect the change in the dynamic engagement of the friction pair. With the increase in the engagement time, the increase of the wear amount decreases.

Numerical simulation research on effect of oil groove forms on thermal behavior of friction pair in hydro-viscous clutch

2016 ◽  
Vol 68 (2) ◽  
pp. 287-298 ◽  
Author(s):  
Fangwei Xie ◽  
Yaowen Tong ◽  
Diancheng Wu ◽  
Bing Zhang ◽  
Kaiyu Dai
Keyword(s):  
Temperature Field ◽  
Cross Section ◽  
Rectangular Cross Section ◽  
Friction Pair ◽  
Maximum Temperature ◽  
Theoretical Expression ◽  
Optimized Design ◽  
Maximum Temperature Difference ◽  
Cross Sectional ◽  
Content Type

Purpose – The purpose of this paper is to study the influence of different cross-sectional shapes (rectangular, trapezoidal, oval and triangular) and layout forms of oil grooves (radial, circumferential, inclined, compound, helical and double-helical), and determine the optimal section shape and layout form of oil grooves on the temperature field. Design/methodology/approach – Heat conduction theory model was established based on startup characteristics and friction heat principle of hydro-viscous clutch (HVC), and then the theoretical expression of angular velocity of the friction pair and control pressure were deduced, and the heat flux and its distribution on friction disk and separator disk were calculated. Finally, the finite element method was used to solve the temperature field of the friction pair. Findings – The studies show that the circumferential oil groove got the highest temperature, and on the surface of all other structures, hot spots appear with different sizes and temperatures, and the maximum temperature difference in the friction zone is about 3°C, and in the oil groove zone is about 16°C, wherein the compound oil groove has the lowest average temperature. This research shows that the compound oil groove with rectangular cross-section is the best choice for the friction pair. Originality/value – In this paper, it was found that the compound oil groove with rectangular cross-section is the best choice for the friction pair, and it provided a favorable theory reference and technical support for the structural design of the friction pair and optimized design of the high-power HVC.

scholarly journals Simulation Study on the Temperature Field of Iron-based Powder Metallurgy Friction Pair

2020 ◽  
Vol 571 ◽  
pp. 012102
Author(s):  
Junjiao Han ◽  
Keyan Ning ◽  
Ming Han ◽  
Nan Zhang ◽  
Jianhua Du ◽  
...  
Keyword(s):  
Temperature Field ◽  
Powder Metallurgy ◽  
Simulation Study ◽  
Friction Pair ◽  
Iron Based
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