Analysis of aerodynamic characteristic on cylinder exhaust of pneumatic frictional clutch

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet) Pub Date : 2011-04-16 DOI:10.1109/CECNET.2011.5768611

Shi Hu-shan, B. Jing, Qian Yu, Zhao Sheng-dun

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Abstract

The pneumatic frictional clutch is one of chief devices on the mechanical processing apparatus, thus its aerodynamic characteristic during normally working and the compressed air exhausting is discussed. Considering the effect of the back-moving spring in the cylinder on exhausting, and four cases of sonic or subsonic exhaust with constant volume or varying volume, the mathematical model and numerical simulation program is presented. The results of the verified experiment carrying on the experimental platform of the mechanical press of type JH23–63 shows that the analytical results is in a good agreement with the experimental results, with the maximum and average of relative error less than 10.1% and 4.9%, respectively. The increase of the speed and maximal speed at the nozzle as well as the exhaust time vary with the increase of the initial pressure in a cylinder. Below the given error range, the aerodynamic characteristic such as the pressure fluctuation, speed at the nozzle and exhaust time can be easily analyzed by using the presented mathematical model and numerical simulation program.

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气动摩擦离合器气缸排气气动特性分析

气动摩擦离合器是机械加工设备上的主要装置之一，本文讨论了气动摩擦离合器在正常工作和排气时的气动特性。考虑汽缸内回动弹簧对排气的影响，以及定容和变容四种声速和亚声速排气情况，给出了数学模型和数值模拟程序。在JH23-63型机械压力机实验平台上进行的验证实验结果表明，分析结果与实验结果吻合较好，相对误差最大小于10.1%，平均小于4.9%。喷嘴处速度和最大速度的增加以及排气时间随气缸内初始压力的增加而变化。在给定的误差范围内，利用所建立的数学模型和数值模拟程序，可以很容易地分析喷管压力波动、喷管速度和排气时间等气动特性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet)

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