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《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 874-885 doi: 10.1007/s11705-021-2131-1
关键词: discrete element method cohesive materials parameter calibration ring shear cell design of experiments
Zhijun LI, Zichen DENG
《结构与土木工程前沿(英文)》 2009年 第3卷 第2期 页码 111-116 doi: 10.1007/s11709-009-0022-5
关键词: discrete-time variable structure control composite reaching law chattering effect saturated control law
A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method
Wu REN, Yunxin WU, Zhaowei ZHANG
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 360-366 doi: 10.1007/s11465-013-0280-8
Mobile concrete pump boom is typical multi-body large-scale motion manipulator. Due to posture constantly change in working process, kinematic rule and dynamic characteristic are difficult to solve. A dynamics model of a mobile concrete pump boom is established based on discrete time transfer matrix method (DTTMM). The boom system is divided into sub-structure A and sub-structure B. Sub-structure A is composed by the 1st boom and hydraulic actuator as well as the support. And sub-structure B is consists of the other three booms and corresponding hydraulic actuators. In the model, the booms and links are regarded as rigid elements and the hydraulic cylinders are equivalent to spring-damper. The booms are driven by the controllable hydraulic actuators. The overall dynamic equation and transfer matrix of the model can be assembled by sub-structures A and B. To get a precise result, step size and integration parameters are studied then. Next the tip displacement is calculated and compared with the result of ADAMS software. The displacement and rotation angle curves of the proposed method fit well with the ADAMS model. Besides it is convenient in modeling and saves time. So it is suitable for mobile concrete pump boom real-time monitoring and dynamic analysis. All of these provide reference to boom optimize and engineering application of such mechanisms.
关键词: multi-body mobile concrete pump boom discrete time transfer matrix method (DTTMM) kinematic dynamic tip displacement
Danhui DAN, Qianqing WANG, Jiongxin GONG
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 244-252 doi: 10.1007/s11709-021-0696-x
关键词: granular material vibration control discrete element method particle damper cable vibration
Hui LI, Ruiqin LI, Jianwei ZHANG
《机械工程前沿(英文)》 2021年 第16卷 第2期 页码 353-362 doi: 10.1007/s11465-020-0620-4
关键词: sliding-mode control robot control discrete-time uncertain systems fuzzy logic
Discrete-event stochastic systems with correlated inputs: Modeling and performance evaluation
《工程管理前沿(英文)》 2022年 第9卷 第2期 页码 214-220 doi: 10.1007/s42524-022-0192-6
关键词: discrete-event stochastic system correlated input performance evaluation
Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation
Zhengsheng Lu, Moran Wang, Mingkai Zhang, Ji Li, Ying Xu, Hanchang Shi, Yanchen Liu, Xia Huang
《环境科学与工程前沿(英文)》 2020年 第14卷 第3期 doi: 10.1007/s11783-020-1222-4
关键词: Sewer system Integrated control Discrete control Water level
3D mode discrete element method with the elastoplastic model
Wei HU, Feng JIN, Chong ZHANG, Jinting WANG
《结构与土木工程前沿(英文)》 2012年 第6卷 第1期 页码 57-68 doi: 10.1007/s11709-012-0139-9
关键词: mode discrete element method elastoplastic numerical method discontinuum contact
Ying YAN, Pengfei LI, Shunying JI
《结构与土木工程前沿(英文)》 2013年 第7卷 第1期 页码 50-54 doi: 10.1007/s11709-013-0186-x
关键词: granular matter impact peak buffer capacity discrete element method critical thickness
Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method
ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong
《化学科学与工程前沿(英文)》 2008年 第2卷 第1期 页码 5-9 doi: 10.1007/s11705-008-0009-0
关键词: annulus BEM-DEM-CFD simulation gas-solid two-dimensional relationship
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1743-1750 doi: 10.1007/s11705-022-2184-9
关键词: standard enthalpy of formation polycyclic aromatic hydrocarbons connectivity based hierarchy high-precision calculation
一类非仿射离散非线性系统的直接自适应模糊滑模控制 Article
Xiao-yu ZHANG
《信息与电子工程前沿(英文)》 2016年 第17卷 第12期 页码 1331-1343 doi: 10.1631/FITEE.1500318
卢秉恒,邵新宇,张俊,王磊
《中国工程科学》 2018年 第20卷 第4期 页码 44-50 doi: 10.15302/J-SSCAE-2018.04.008
当前,以新一代人工智能技术与先进制造业深度融合发展为主要特征的新一代智能制造正在全球范围内孕育兴起,成为新一轮工业革命的核心技术。中国制造业总体而言大而不强,发展智能制造可推进中国制造业提质增效、由大变强,是中国制造业转型升级的主要路径。智能生产是新一代智能制造系统的主线,而智能工厂是智能生产的主要载体。本文重点研究离散型制造智能工厂发展战略,首先探讨智能工厂的内涵,对智能工厂的基本架构、信息系统架构和基本特征进行描述,然后提出了智能工厂的重点突破方向和实施途径方案,最后给出了发展智能工厂的政策建议:①建议政府部门积极支持和引导智能制造产业发展和智能工厂示范,支持形成具有区域优势的智能制造生态链;②鼓励企业根据自己的实际情况建设智能工厂,构建技术竞争优势和提升企业经济效益是硬道理;③建立和落实协同创新机制;④突出核心技术、关键装备、工业软件的“中国制造”。
Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU
《结构与土木工程前沿(英文)》 2021年 第15卷 第1期 页码 147-166 doi: 10.1007/s11709-020-0704-6
关键词: shield tunneling face stability transparent clay model test numerical simulation
李新宇,李昭甫,高亮
《中国工程科学》 2022年 第24卷 第2期 页码 64-74 doi: 10.15302/J-SSCAE-2022.02.008
在传统离散制造业加快转型升级的背景下,发展智能制造将推进离散制造业提质增效、促进行业由大变强,因此数字化转型与智能化升级成为必然选择。我国离散制造各细分行业存在极大的差异性,相应的数字化转型与智能化升级路径也存在多样性,因而需要结合企业实际探讨具体实施举措。本文提炼了离散制造行业的典型特性,梳理了离散制造行业数字化转型与智能化升级面临的挑战,阐述了包括先进制造技术、新一代信息技术、新一代人工智能在内的共性关键技术;系统调研了我国离散型制造企业数字化转型与智能化升级的4 个典型案例,力求呈现领域前沿应用进展,进而提出了突破智能制造关键使能技术,研发智能制造装备,建设数字化、智能化车间和工厂,提供数字化、智能化服务,构建标准与安全体系等重点发展任务。研究建议,加快示范应用,突出“中国制造”,培育高新技术人才,制定相应的法律法规,以此推动我国离散制造行业的高质量发展。
标题 作者 时间 类型 操作
A “Sequential Design of Simulations” approach for exploiting and calibrating discrete element simulations
期刊论文
Improving existing “reaching law” for better discrete control of seismically-excited building structures
Zhijun LI, Zichen DENG
期刊论文
A dynamic model of mobile concrete pump boom based on discrete time transfer matrix method
Wu REN, Yunxin WU, Zhaowei ZHANG
期刊论文
Application of coupled multi-body dynamics–discrete element method for optimization of particle damper
Danhui DAN, Qianqing WANG, Jiongxin GONG
期刊论文
Gained switching-based fuzzy sliding mode control for a discrete-time underactuated robotic system with
Hui LI, Ruiqin LI, Jianwei ZHANG
期刊论文
Water-level based discrete integrated dynamic control to regulate the flow for sewer-WWTP operation
Zhengsheng Lu, Moran Wang, Mingkai Zhang, Ji Li, Ying Xu, Hanchang Shi, Yanchen Liu, Xia Huang
期刊论文
3D mode discrete element method with the elastoplastic model
Wei HU, Feng JIN, Chong ZHANG, Jinting WANG
期刊论文
Buffer capacity of granular matter to impact of spherical projectile based on discrete element method
Ying YAN, Pengfei LI, Shunying JI
期刊论文
Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method
ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong
期刊论文
formation for polycyclic aromatic hydrocarbons predicting from general connectivity based hierarchy with discrete
期刊论文
Model test and discrete element method simulation of shield tunneling face stability in transparent clay
Huayang LEI, Yajie ZHANG, Yao HU, Yingnan LIU
期刊论文