发明人：冯睽睽，张发平，王武宏，吴贞鹤

申请日期：2022.09.21

摘要：本发明公开的一种机械加工表面的应力建模方法，属于切削应力建模领域。本发明实现方法为：将细钻切削表面的柱坐标转换成直角坐标；将钻刀划分成多个切削单元，通过刃口半径和未变形切屑厚度的对比，将刀具的切削状态分为剪切和犁耕；分解剪切切削过程，将其分为三个应力变化阶段，并构建剪切状态的切削应力模型；将犁耕状态 ...

发明人：魏剑峰，张发平，卢继平，杨向飞

申请日期：2022.10.14

摘要：本发明公开的基于CUSUM‑RHD的火炮反后坐装置状态评估方法，属于火炮反后坐装置状态评估技术领域。本发明实现方法为：分析提取故障特征数据信号；对故障特征数据进行归一化处理，进而消除量纲间的影响；通过构建相对豪斯多夫距离求取模型求解火炮相邻两次射击间的豪斯多夫距离；通过构建累积和相对豪斯多夫距离求取 ...

作者：张云贺¹;，张发平¹;，王武宏¹;，孟凡军²;，张大舜³;，张书畅¹; （¹北京理工大学机械与车辆学院；²长春理工大学机电工程学院；³中国兵器工业集团第55研究所）

出处：车辆与动力技术 2023

关键词：火炮身管；小波变换；参数识别；间隙

摘要：以坦克的身管-衬瓦总成结构为研究对象，研究考虑身管间隙的动力学建模方法对抑制由间隙导致的振动以及建模的不精确问题.首先建立了基于正则化理论的含间隙因素的身管-衬瓦结构空间缩减模型，在此基础上采用灵敏度分析方法确定影响模型的关键参数为阻尼参数；基于小波变换理论的参数辨识方法获取间隙时变阻尼参数，构建了 ...

作者：Asim Amjad^1,2;1;Shahid Ikramullah Butt¹;2;Mujtaba Hassan Agha³;CA3;Ayyaz Ahmad⁴;4;Faping Zhang⁵;5;Shamraiz Ahmad¹;6 （¹School of Mechanical and Manufacturing Engineering, National University of Sciences and Technology, Islamabad 44000, Pakistan;²Department of Industrial Engineering and Management, University of the Punjab, Lahore 54590, Pakistan;³Nust Business School (NBS), National University of Science and Technology, Islamabad, 44000, Pakistan;⁴Department of Industrial and Systems Engineering, University of Hail, Saudi Arabia;⁵Department of Mechanical Engineering, Beijing Institute of Technology, Beijing, China）

出处：Technology in Society 2023

摘要：Sustainability has received increased interest from academics in various domains. However, the role of ergonomics/human factors in sustainability rela ...

发明人：魏剑峰，张发平，卢继平，杨向飞

申请日期：2023.06.21

摘要：本发明公开的基于评估指标平面角度的时间序列加速退化点辨识方法，属于机械装备状态评估与剩余寿命预测领域。本发明采集被测滚动轴承的水平振动信号；将时间序列分割成多个时间单位，提取每个时间单位内绝对峰值；将累积和绝对峰值作为滚动轴承状态评估指标，表征滚动轴承运行过程中的累积退化效应；求取评估指标与坐标系x ...

作者：魏剑峰¹;，张发平¹;，卢继平¹;，杨向飞¹;，杨鹏楷²; （¹北京理工大学机械与车辆学院；²北京理工大学计算机学院）

出处：兵工学报 2023

关键词：高斯模型；火炮反后坐装置；证据理论；故障诊断

摘要：针对变工况作战环境下火炮反后坐装置状态信号的模糊性和高冲突性等特点所导致的故障诊断可信性不高的问题，提出一种基于高斯模型和均方根偏移（RMSD）-Dempster-Shafer（DS）故障诊断方法，实现信号的模糊化定量表征以及高度冲突证据融合的高可信性诊断。采用高斯模型求解火炮反后坐装置的多个故障特 ...

作者：Zhang, Yun-He;Zhang, Fa-Ping;Wang, Wu-Hong;Meng, Fan-Jun;Zhang, Da-Shun （:1: School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China 2: The 55 Research Institute of China North Industries Group Corporation Limited, Changchun, 130012, China）

出处：Journal of Nanoelectronics and Optoelectronics 2021

关键词：Artillery Barrel;Clearance Structure;Dynamic Modeling;Parameter Identification;Wavelet Identification Method

摘要：To improve the tank aiming accuracy, this paper studies on the nonlinear vibration characteristics caused by the clearance between the barrel and lini ...

作者：Youyi Zheng¹;Yuzhao Tian¹;Junjin Ma¹;Faping Zhang ²;Xiaobin Cui¹; & …Lei Ren¹; （¹School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, 454000, China;²School of Mechanical Engineering, Beijing Institute of Technology, Beijing, 100081, China）

出处：The International Journal of Advanced Manufacturing Technology

关键词：Milling;Aluminum alloy;Surface residual stress;Effective cutting work;Strain energy

摘要：Aluminum alloy has the characteristics of good corrosion resistance and high strength, so aluminum alloy workpiece is widely used in the aerospace fie ...

发明人：王彪，张发平，冯睽睽，吴贞鹤，张梦迪

申请日期：2023.12.15

摘要：本发明公开的一种基于时序熵计算数据相似度的多维预测模型验证方法，属于小孔钻削预测技术领域。本发明实现方法为：利用现有可测量的实验数据如温度、应力等，使用多重插补的方法补全数据；通过计算实验测量数据与钻削多物理场作用下微结构零件几何演变规律模型预测数据的差值获得两者的差值矩阵；计算实验测量数据与钻削多 ...

作者：Faping Zhang¹;Jiping Lu¹;CA1;Yan Yan¹;Shuiyuan Tang¹;Chao Meng²; （¹School of Mechanical Engineering, Beijing Institute of Technology, 100081, Beijing, China;²Department of Mechanical Engineering, RWTH Aachen, 52062, Aachen, Germany）

出处：International Journal of Computational Intelligence Systems 2011

关键词：state space model;mutative chaos optimization algorithm;process reliability modeling;multistage machining process

摘要：The stability of process is certainly one of the most important aspects to fulfill the task. Now, it is still a challenge to put forward a model to de ...