• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of aerospace engineering >Achieving a High-Speed and Momentum Synthetic Jet Actuator
【24h】

Achieving a High-Speed and Momentum Synthetic Jet Actuator

机译：实现高速动量合成射流执行器

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A detailed analysis of a finite-span synthetic jet in a quiescent fluid is presented, with the goal of achieving a high speed and momentum synthetic jet, with a peak velocity exceeding 200m/s. A total of two scales of actuator apparatuses having either 40- or 80-mm-diameter piezoelectric discs were used. A temperature-compensated hot wire, laser displacement sensor, and dynamic pressure transducers were used to quantify the performance of a given actuator. The synthetic jet generation process was divided into its main components, diaphragm displacement, cavity pressure, and orifice velocity, which were analyzed in detail in both their peak values and time responses. The phase shift between the disc displacement and velocity signals were found to be mainly attributed to compressibility effects. Doubling the diameter and thickness of the piezoelectric disc was found to double the output jet velocity and shift the operation frequency range of the system. In addition, a dual disc configuration was used, which yielded an approximately 40% higher jet velocity than its single disc configuration. Using the knowledge acquired from these experiments resulted in a synthetic jet having a peak velocity of 211m/s out of a 12x1-mm rectangular orifice at 700Hz, which is significantly stronger than any similar actuator reported in the literature.
机译：给出了对静态流体中有限跨度合成射流的详细分析，目的是实现峰值速度超过200m / s的高速动量合成射流。具有直径为40毫米或80毫米的压电盘的致动器装置总共使用了两个刻度尺。温度补偿的热线，激光位移传感器和动态压力传感器用于量化给定执行器的性能。合成射流的产生过程分为其主要部分，膜片位移，腔体压力和孔口速度，并对其峰值和时间响应进行了详细分析。发现圆盘位移和速度信号之间的相移主要归因于可压缩性效应。发现将压电盘的直径和厚度加倍可使输出射流速度加倍，并改变系统的工作频率范围。另外，使用了双盘结构，其喷射速度比单盘结构高约40％。利用从这些实验中获得的知识，可以在700Hz的频率下从12x1毫米矩形孔口中喷出峰值速度为211m / s的合成射流，该速度明显强于文献中报道的任何类似作动器。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号