驱动压力调节对可控型射流注射系统性能的影响

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振动与冲击 ›› 2023, Vol. 42 ›› Issue (5) : 7-12.

论文

曾栋坪1，康勇2，刘忠1，喻哲钦1，李佳敏2

作者信息 +

Effects of driving pressure modulation on performance of controllable jet injection system

ZENG Dongping1, KANG Yong2, LIU Zhong1, YU Zheqing1, LI Jiamin2

Author information +

文章历史 +

摘要

为探究驱动压力调制对可控型射流注射系统动力学特征及注射性能的影响，利用高精度射流冲击测试平台及高速摄影装置，分析射流冲击变化特征及扩散特征，并结合离体组织注射实验结果探究驱动压力调制机理。研究结果表明，通过驱动压力切换可以达到可控型射流注射系统高低两段式射流速度的要求，且通过控制驱动压力可以实现对射流注射系统的冲击特征及扩散特征进行控制。不同喷射剂量工况均存在较优驱动压力组合，典型大剂量注射工况1.0 mL的最优驱动压力组合为（1.00-0.25）MPa，通过驱动压力调制可以进一步提高可控型射流注射系统的注射性能。

Abstract

In order to explore the influence of driving pressure modulation on the dynamic characteristics and injection performance of the controllable jet injection system, a high-precision jet pressure test platform and a high-speed photographic device were used to test and analyze the jet impact characteristics and diffusion characteristics. Combined with the experimental results of in vitro tissue injection, the mechanism of driving pressure modulation was explored. The results show that the requirements of the high and low two-stage jet velocity of the controllable jet injection system can be achieved by switching the driving pressure. And with the regulation of driving pressure, the impact and diffusion characteristics of the jet injection system can be controlled. Also，there are optimal driving pressure combinations for different injection volume conditions. The optimal driving pressure combination of 1.0 mL (a typical large-dose injection condition) is (1.00-0.25) MPa. Thus, the injection effect of the jet injection system can be improved by driving pressure modulation.

导出引用

曾栋坪1，康勇2，刘忠1，喻哲钦1，李佳敏2. 驱动压力调节对可控型射流注射系统性能的影响[J]. 振动与冲击, 2023, 42(5): 7-12

ZENG Dongping1, KANG Yong2, LIU Zhong1, YU Zheqing1, LI Jiamin2. Effects of driving pressure modulation on performance of controllable jet injection system[J]. Journal of Vibration and Shock, 2023, 42(5): 7-12

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