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Hui Ching FAN, Hong Sen YAN
《机械工程前沿(英文)》 2012年 第7卷 第1期 页码 5-15 doi: 10.1007/s11465-012-0310-y
Without modifying the cam contour, a cam mechanism with a variable input speed trajectory offers an alternative solution to flexibly achieve kinematic and dynamic characteristics, and then decrease the follower’s residual vibration. Firstly, the speed trajectory of cam is derived by employing Bezier curve, and motion continuity conditions are investigated. Then the motion characteristics between the plate cam and its roller follower are derived. To analyze the residual vibration, a single degree of freedom dynamic model of the elastic cam-follower system is introduced. Based on the motion equation derived from the dynamic model, the residual vibration of the follower is yielded. The design procedure to improve the kinematic and dynamic motion characteristics is presented and two design examples with discussions are provided. Finally, the simulations of the kinematic and dynamic models by ADAMS are carried out and verified that the design models as well as the performances of the mechanism are feasible.
关键词: cam mechanism variable input speed kinematic design dynamic design optimal design
A feasibility study on the design and walking operation of a biped locomotor via dynamic simulation
null
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 144-158 doi: 10.1007/s11465-016-0391-0
A feasibility study on the mechanical design and walking operation of a Cassino biped locomotor is presented in this paper. The biped locomotor consists of two identical 3 degrees-of-freedom tripod leg mechanisms with a parallel manipulator architecture. Planning of the biped walking gait is performed by coordinating the motions of the two leg mechanisms and waist. A three-dimensional model is elaborated in SolidWorks® environment in order to characterize a feasible mechanical design. Dynamic simulation is carried out in MSC.ADAMS® environment with the aims of characterizing and evaluating the dynamic walking performance of the proposed design. Simulation results show that the proposed biped locomotor with proper input motions of linear actuators performs practical and feasible walking on flat surfaces with limited actuation and reaction forces between its feet and the ground. A preliminary prototype of the biped locomotor is built for the purpose of evaluating the operation performance of the biped walking gait of the proposed locomotor.
关键词: feasibility study biped locomotor biped walking mechanical design dynamic simulation tripod leg mechanism 3-UPU parallel manipulator
Dynamic simulation based optimized design method of concrete production system for RCC dam
ZHAO Chunju, ZHOU Yihong
《结构与土木工程前沿(英文)》 2007年 第1卷 第4期 页码 405-410 doi: 10.1007/s11709-007-0055-6
关键词: interacted dynamic simulation construction resource RCC
Dynamic design of green stormwater infrastructure
Robert G. Traver, Ali Ebrahimian
《环境科学与工程前沿(英文)》 2017年 第11卷 第4期 doi: 10.1007/s11783-017-0973-z
关键词: Low Impact Development (LID) Stormwater control measures Green infrastructure Stormwater design
Chengyuan LIANG, Fang YUAN, Xuedong CHEN, Wei JIANG, Lizhan ZENG, Xin LUO
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 255-272 doi: 10.1007/s11465-019-0538-x
关键词: nano-precision positioning stage analysis and design structural and dynamic parameters dynamic accuracy systematic modeling
Similitude design for the vibration problems of plates and shells: A review
Yunpeng ZHU, You WANG, Zhong LUO, Qingkai HAN, Deyou WANG
《机械工程前沿(英文)》 2017年 第12卷 第2期 页码 253-264 doi: 10.1007/s11465-017-0418-1
Similitude design plays a vital role in the analysis of vibration and shock problems encountered in large engineering equipment. Similitude design, including dimensional analysis and governing equation method, is founded on the dynamic similitude theory. This study reviews the application of similitude design methods in engineering practice and summarizes the major achievements of the dynamic similitude theory in structural vibration and shock problems in different fields, including marine structures, civil engineering structures, and large power equipment. This study also reviews the dynamic similitude design methods for thin-walled and composite material plates and shells, including the most recent work published by the authors. Structure sensitivity analysis is used to evaluate the scaling factors to attain accurate distorted scaling laws. Finally, this study discusses the existing problems and the potential of the dynamic similitude theory for the analysis of vibration and shock problems of structures.
Seismic performance of moment resisting steel frame subjected to earthquake excitations
Fadzli M. NAZRI, Pang Yew KEN
《结构与土木工程前沿(英文)》 2014年 第8卷 第1期 页码 19-25 doi: 10.1007/s11709-014-0240-3
关键词: incremental dynamic analysis (IDA) pushover analysis performance-based seismic design
陶然,贺春旺,罗俊荣,毛贻齐,马连华
《中国工程科学》 2023年 第25卷 第1期 页码 121-130 doi: 10.15302/J-SSCAE-2023.07.008
Design of a shaking table test box for a subway station structure in soft soil
YANG Linde, ZHENG Yonglai, ZHANG Dongliang, JI Qianqian, YANG Chao
《结构与土木工程前沿(英文)》 2007年 第1卷 第2期 页码 194-197 doi: 10.1007/s11709-007-0022-2
关键词: geotechnical engineering numerical analysis weight dynamic analysis Shanghai
Design and simulation of a cable-pulley-based transmission for artificial ankle joints
Huaxin LIU,Marco CECCARELLI,Qiang HUANG
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 170-183 doi: 10.1007/s11465-016-0383-0
In this paper, a mechanical transmission based on cable pulley is proposed for human-like actuation in the artificial ankle joints of human-scale. The anatomy articular characteristics of the human ankle is discussed for proper biomimetic inspiration in designing an accurate, efficient, and robust motion control of artificial ankle joint devices. The design procedure is presented through the inclusion of conceptual considerations and design details for an interactive solution of the transmission system. A mechanical design is elaborated for the ankle joint angular with pitch motion. A multi-body dynamic simulation model is elaborated accordingly and evaluated numerically in the ADAMS environment. Results of the numerical simulations are discussed to evaluate the dynamic performance of the proposed design solution and to investigate the feasibility of the proposed design in future applications for humanoid robots.
关键词: biomimetic designs ankle joints cable-pulley transmissions multi-body dynamic simulation numerical characterization
Numerical analysis of nonlinear dynamic behavior of earth dams
Babak EBRAHIMIAN
《结构与土木工程前沿(英文)》 2011年 第5卷 第1期 页码 24-40 doi: 10.1007/s11709-010-0082-6
关键词: earth dam numerical nonlinear response dynamic analysis earthquake dam height
Construction of interfacial dynamic bonds for high performance lignin/polymer biocomposites
《化学科学与工程前沿(英文)》 2023年 第17卷 第10期 页码 1372-1388 doi: 10.1007/s11705-023-2302-3
Wenpo REN, Honggang CHEN, Chaohe YANG, Honghong SHAN,
《化学科学与工程前沿(英文)》 2010年 第4卷 第3期 页码 250-256 doi: 10.1007/s11705-009-0281-7
关键词: dynamic simulation molecular dynamic behavior molecule Adsorption Chromatography
标题 作者 时间 类型 操作
On the improvement design of dynamic characteristics for the roller follower of a variable-speed plate
Hui Ching FAN, Hong Sen YAN
期刊论文
A feasibility study on the design and walking operation of a biped locomotor via dynamic simulation
null
期刊论文
Dynamic simulation based optimized design method of concrete production system for RCC dam
ZHAO Chunju, ZHOU Yihong
期刊论文
Comprehensive analysis of the influence of structural and dynamic parameters on the accuracy of nano-precision
Chengyuan LIANG, Fang YUAN, Xuedong CHEN, Wei JIANG, Lizhan ZENG, Xin LUO
期刊论文
Similitude design for the vibration problems of plates and shells: A review
Yunpeng ZHU, You WANG, Zhong LUO, Qingkai HAN, Deyou WANG
期刊论文
Seismic performance of moment resisting steel frame subjected to earthquake excitations
Fadzli M. NAZRI, Pang Yew KEN
期刊论文
Design of a shaking table test box for a subway station structure in soft soil
YANG Linde, ZHENG Yonglai, ZHANG Dongliang, JI Qianqian, YANG Chao
期刊论文
Design and simulation of a cable-pulley-based transmission for artificial ankle joints
Huaxin LIU,Marco CECCARELLI,Qiang HUANG
期刊论文