Research on air diversion channel of air-cooled gasoline engine cylinder head and simulation of fluid- solid coupling heat transfer

Du, Bao Cheng; Tang, Gang Zhi; Zhang, L.; Zhong, Liu; Deng, Tao; Yi, Yan

doi:10.1007/s12206-017-1046-8

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Wu 17 studied a naval gun barrel and showed that the water cooling effect is closely related to the wall thickness and the water velocity. In order to enhance the cooling performance of the cylinder, Chen 18 discussed the effects of Reynolds and Prandtl numbers using a double-distribution function approach, while Du 19 proposed an innovative cooling air diversion channel. In terms of the bluff-body stratified flame stabilizer, Konstantinos 20 examined the impact of preheat on the developing disk wake topology and on the mixing performance.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of friction disc temperature field under cooling fluid

Stanciulescu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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The temperature field of the wet clutch is an important factor that influences the vehicle transmission performance. In order to predict and prolong the service life of the wet clutch, a test bench is built, and an accelerated life test is carried out based on the actual working conditions. Then, according to the variation of the friction coefficient and the maximum radial temperature difference, the sliding temperature field is analyzed in different periods. By introducing four evaluation indexes, a temperature field evaluation system is established and verified. With the help of this evaluation system, the temperature fields during running-in and unstable stages are compared, and the thermal failure mechanism of the friction disc is analyzed. In the stable stage, the influence of rotational speed, oil pressure and lubricant flow on the temperature field are investigated. The results of this study can guide the design and control of the friction components in the wet clutch.

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Section: Introductionmentioning

confidence: 99%

Experimental investigation of friction disc temperature field under cooling fluid

Stanciulescu

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part C:

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Temperature measurement point optimization and experimental research for bi-rotary milling head of five-axis CNC machine tool

Dai

et al. 2022

Int J Adv Manuf Technol

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Thermal deformation is the main factor affecting the machining accuracy of the Bi-rotary Milling Head. To accurately find out the temperature-sensitive points of the Bi-rotary Milling Head to suppress thermal deformation, this paper adopts the BP neural network sensitivity analysis method with improved connection weights to optimize the temperature measurement points, and the analysis results are subjected to randomized mean value processing to reduce the randomness of the initialization of the prediction model. The number of temperature measurement points is reduced from 15 to 4. Taking the 5AS01 Direct-drive Bi-rotary Milling Head as an example, a thermal-structural coupling model is established to analyze its thermal characteristics, and the capillary copper tube cooling suppression experiment is arranged according to the position of the temperature-sensitive points. The experimental results show that cooling the temperature-sensitive points can simultaneously reduce the thermal error in X and Z-directions by about 58%, providing a basis for the Bi-rotary Milling Head to improve machining accuracy.

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Research on air diversion channel of air-cooled gasoline engine cylinder head and simulation of fluid- solid coupling heat transfer

Cited by 2 publications

References 2 publications

Experimental investigation of friction disc temperature field under cooling fluid

Experimental investigation of friction disc temperature field under cooling fluid

Temperature measurement point optimization and experimental research for bi-rotary milling head of five-axis CNC machine tool

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