梯形花键轴的刀具解析与近似替代

梯形花键具有导向性好、自动定心等特点，在低速、大转矩传动领域有一定的应用。应用齿廓法线法对梯形花键轴的滚刀齿廓进行了公式解析，同时对其成型刀具截型进行了公式推导。分析梯形花键副的应力集中问题，提出并计算了替代梯形外花键的渐开线齿形，并计算了齿廓偏差，为相关零件的国产化及使用提供一定的参考

端面齿联轴器的节平面测量与离线精度检测

端面齿联接具有力矩性能高、自动定心等特点，在离心式空气压缩机组中具有重要作用。介绍了一种可行的节平面测量方法，并应用齿轮检测仪，对端面齿进行全面的精度检测，为相关零件的测量与离线检测提供一定的参考

同向双螺杆挤出机齿轮箱输出相位偏差机理及调整

同向双螺杆挤出机在工程塑料的改性、造粒、预混等生产中具有广泛应用，其同向齿轮箱是挤出机的重要组成之一，其输出相位对挤出机的性能尤为重要。系统分析了同向双螺杆挤出机齿轮箱输出相位偏差的产生机理，并提出了有效的装配调整措施，为类似传动系统的研究和设计提供一定的参考

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies