【作者】 陈雪峰； 李兵； 刘运生； 何正嘉；

【Author】 Chen Xuefeng Li Bing Liu Yunsheng He Zhengjia (State Key Lab.for Manufacturing System Engineering.Xi’an Jiaotong University,Xi’an 710049)

【机构】 西安交通大学机械工程学院机械制造系统工程国家重点实验室；

【摘要】 射击精度是衡量火炮性能的重要指标,火炮俯仰机构的间隙对火炮射击精度有很大影响。所以提取间隙特征对于火炮俯仰机构间隙的动态调整、提高火炮的射击精度具有重要意义。采用第二代小波包分解、重构和信息熵指标相结合的方法,利用第二代小波敏感频带的信息熵,初步给出了火炮俯仰机构间隙特征的判别方法,并进行了实验验证。更多还原

【Abstract】 The firing accuracy is an important parameter of guns performance.Clearances in the guns mechanism have a great influence on firing accuracy.Therefore,it’s of great significance for extracting clearance charicteristics to adjust the clearance dynamically and impove the firing accuracy.A new method was adopted which is based on second generation wavelet packet decomposition and reconstruction as well as the information entropy. And the method of clearances in the pitch mechanism of guns characteristic extraction has been initially given through the information entropy in the sensitive frequency band.更多还原