Assembly Automation: Volume 41 Issue 4

Simulation on an electro-hydrostatic actuator controlled by a high-pressure piezoelectric pump with a displacement amplifier

Bin Wang, Nanyue Xu, Pengyuan Wu, Rongfei Yang

The purpose of this paper is to provide a new hydrostatic actuator controlled by a piezoelectric piston pump and to reveal its characteristics.

Robot navigation based on improved A* algorithm in dynamic environment

Lin Zhang, Yingjie Zhang, Manni Zeng, Yangfan Li

The purpose of this paper is to put forward a path planning method in complex environments containing dynamic obstacles, which improves the performance of the traditional A…

Learning impedance regulation skills for robot belt grinding from human demonstrations

Guojun Zhang, Fenglei Ni, Hong Liu, Zainan Jiang, Guocai Yang, Chongyang Li

The purpose of this paper is to transfer the impedance regulation of manual belt grinding to robot belt grinding control.

Knowledge-enabled digital twin for smart designing of aircraft assembly line

Xiao Chang, Xiaoliang Jia, Kuo Liu, Hao Hu

The purpose of this paper is to provide a knowledge-enabled digital twin for smart design (KDT-SD) of aircraft assembly line (AAL) to enhance the AAL efficiency, performance and…

Push recovery control for the underactuated lower extremity exoskeleton based on improved capture point concept

Jiaqi Zhang, Ming Cong, Dong Liu, Yu Du, Hongjiang Ma

The purpose of this paper is to use a simple method to enhance the ability of lower limb exoskeletons to restore balance under large interference conditions and to solve the…

Multi-objective worker allocation optimisation in a multiple U-line system

Parames Chutima, Jurairat Chimrakhang

This paper aims to evaluate two operational modes of the worker allocation problem (WAP) in the multiple U-line system (MULS). Five objectives are optimised simultaneously for the…

Robotic industrial automation simulation-optimization for resolving conflict and deadlock

Hamed Fazlollahtabar, Mohammad Saidi-Mehrabad, Ellips Masehian

The purpose of this study is to investigate the benefits of the turning point layout; a simulation model being applicable for strategic level is designed that compares systems…

Three-dimensional tolerance analysis of discrete surface structures based on the torsor cluster model

Chuanyuan Zhou, Zhenyu Liu, Chan Qiu, Jianrong Tan

The purpose of this paper is to propose a novel mathematical model to present the three-dimensional tolerance of a discrete surface and to carry out an approach to analyze the…

A quasi-Monte Carlo statistical three-dimensional tolerance analysis method of products based on edge sampling

Chuanyuan Zhou, Zhenyu Liu, Chan Qiu, Jianrong Tan

The conventional statistical method of three-dimensional tolerance analysis requires numerous pseudo-random numbers and consumes enormous computations to increase the calculation…

Monomer model: an integrated characterization method of geometrical deviations for assembly accuracy analysis

Binbin Zhao, Yunlong Wang, Qingchao Sun, Yuanliang Zhang, Xiao Liang, Xuewei Liu

Assembly accuracy is the guarantee of mechanical product performance, and the characterization of the part with geometrical deviations is the basis of assembly accuracy analysis.