上海工程技术大学学报

2021 Vol. 35, No. 4

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Material Science and Engineering
Advanced Manufacturing and Intelligent Control
Modern Traffic Engineering
Textile Chemical Engineering and Environment
Mathematical Sciences and Application

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Material Science and Engineering

Discussion on some problems of small face impact bonding effect

WU Qichang, HE Jianping

2021, 35(4): 295-304.

Abstract:
Impact bonding has attracted much attention due to its excellent performance. In order to understand impact bonding effect with small face, the interface morphology by impact welding was investigated, the affecting of interface morphology on mechanical properties of welds was discussed, and it is in...

[Abstract](721) [FullText HTML] (724) [PDF 1214KB](1720) [Cited by] (1)

Progress in research methods of microstructure evolution during welding solidification

JIN Shuode, HE Jianping, PAN Xuehang

2021, 35(4): 305-314.

Abstract:
The final microstructure of welding joint is affected by microstructure evolution during welding solidification, and then it affects mechanical properties of welding joint. Experimental-based analysis methods such as Gleeble thermal simulation experimental method, comparisons of microstructures in d...

[Abstract](722) [FullText HTML] (688) [PDF 997KB](892) [Cited by] (2)

Multi-objective optimization of process parameters of 45 steel laser cladding Ni60 alloy powder

JI Youdi, GONG Hongying, XU Peiquan

2021, 35(4): 315-320.

Abstract:
In order to extend the service life of the parts and reduce the production costs, the laser cladding of the Ni60 molten coating layer on the 45 steel surface can meet the production requirements, avoid the waste of resources and achieve green manufacturing. The weights were determined by analytic hi...

[Abstract](917) [FullText HTML] (453) [PDF 1336KB](693) [Cited by] (4)

Advanced Manufacturing and Intelligent Control

Research on sensorless control strategy of PMSM

HE Zheng, MA Xipei, FAN Pingqing, ZHAO Heng, WANG Yansong

2021, 35(4): 321-326.

Abstract:
Aiming at the problems of overshoot, chattering and slow response in the sensorless control system of permanent magnet synchronous motor (PMSM) for electronic water pump, PMSM sensorless control algorithm based on hybrid sliding mode speed controller and Luenberger observer was proposed. In the spee...

[Abstract](924) [FullText HTML] (741) [PDF 1466KB](720) [Cited by] (13)

Fractional-order sliding mode control of robotic arms with boundary layer

LIU Shijie, HUANG Zhilai, YANG Mingxing, XU Peimin

2021, 35(4): 327-332.

Abstract:
For the robotic arm system with perturbation, the fractional-order calculus was introduced to construct a fractional-order sliding mode surface based on classical sliding mode control. While a boundary layer had set in the reaching law, and the sign function was replaced with the saturation function...

[Abstract](735) [FullText HTML] (619) [PDF 948KB](420) [Cited by] (4)

Study on relaxation rule of over temperature creep stress in superheater tube of ultra-supercritical boiler

LIN Qidie, YAN Zhenrong, WANG Huanan, CHEN Le, WEI Jingtao

2021, 35(4): 333-339.

Abstract:
The superheater tube in the outlet area of the high-temperature superheater box of ultra-supercritical boiler is easy to be exposed to overtemperature environment, resulting in creep stress relaxation and material failure. Based on Norton creep model, the stress relaxation behavior and creep distrib...

[Abstract](2280) [FullText HTML] (589) [PDF 1896KB](747) [Cited by] (1)

Numerical simulation and test analysis of magnetic field in 500 kA aluminum electrolyzer

LI Shangwei, DENG Shengxiang, KUANG Jianghong

2021, 35(4): 340-345.

Abstract:
Using 3D modeling of SolidWorks and 3D simulation software of COMSOL, the numerical simulation of 500 kA aluminum electrolyzer was carried out. A magnetic field test on 500 kA aluminum electrolyzer of a manufacturer is carried, and the test results are in good agreement with the simulation results. ...

[Abstract](727) [FullText HTML] (684) [PDF 1101KB](270) [Cited by] (3)

Modern Traffic Engineering

Research progress on detection technology of large-size aircraft parts

LI Binpeng, MAO Jian

2021, 35(4): 346-353.

Abstract:
Large-size aircraft parts have complex structure and huge external dimension characteristics. In view of the research of large-size measurement technology in the aircraft manufacturing process, five kinds of detection technology methods for large-size parts, like three-coordinate measurement method,...

[Abstract](1110) [FullText HTML] (691) [PDF 1011KB](519) [Cited by] (6)

Research status of GIS application in highway engineering field based on knowledge graph

TIAN Xueze

2021, 35(4): 354-361.

Abstract:
In order to gain insight into current status and hotspots of geographic information system (GIS) application research in the field of highway engineering in our country, relevant documents in the CNKI database from 2010 to 2020 were used as data sources, and softwares such as COOC, GIGO, SPSS and UC...

[Abstract](1039) [FullText HTML] (487) [PDF 1001KB](361)

Fuzzy comprehensive evaluation of civil aircraft operational requirement based on AHP-entropy method

CHU Shuanglei, WEI Zhiqiang, REN Qiang, LIU Fei

2021, 35(4): 362-369.

Abstract:
At present, the evaluation index for the demonstration program of civil aircraft operation requirement is not comprehensive and complete, and it is difficult to identify key indicators that affect the quality and competitiveness of civil aircraft products. On the basis of analyzing the operational e...

[Abstract](742) [FullText HTML] (475) [PDF 715KB](246) [Cited by] (8)

Textile Chemical Engineering and Environment

Study on preparation and anti-UV properties of TiO₂ film on terylene

CHENG Ya, CHEN Zhuoming, ZHENG Yuansheng, XIN Binjie

2021, 35(4): 370-376.

Abstract:
Titanium dioxide/polyester (TiO₂/PET) ultraviolet (UV) resistant fabric was prepared by deposition of titanium dioxide on the surface of polyester fabric by magnetron sputtering. The effects of magnetron sputtering time and sputtering power on the UV resistance of the fabric during the preparation p...

[Abstract](938) [FullText HTML] (1503) [PDF 2298KB](1154) [Cited by] (2)

Mechanism of a drug pair of Astragalus membranaceus and Lycium barbarum on ulcerative colitis based on network pharmacology

HAO Fangjia, PENG Yuanyuan, ZHAO Linjing

2021, 35(4): 377-382.

Abstract:
The drug pair comprising of Astragalus membranaceus and Lycium barbarum (AL) has the clinical efficacy to prevent ulcerative colitis (UC). However, the mechanism of action is still arcane. The possible mechanism of this drug pair in the treatment of UC was investigated using a network pharmacology p...

[Abstract](772) [FullText HTML] (627) [PDF 850KB](423) [Cited by] (3)

Research status and existing problems of intelligent wearable clothing for the elderly

ZHANG Yifei, KE Baozhu

2021, 35(4): 383-388.

Abstract:
With the increasing demand for functional clothing and the accelerating aging of the population, developments of intelligent wearable clothing for the elderly need to be paid attention to. The researches of intelligent wearable clothing for the elderly were summarized, it was pointed out that it mai...

[Abstract](773) [FullText HTML] (1495) [PDF 2466KB](361) [Cited by] (4)

Mathematical Sciences and Application

Establishment of differential equation of in-plane free vibration of curved beams under MOI and shear deformation

ZHANG Zhichao, SONG Yumin

2021, 35(4): 389-394.

Abstract:
The derivation and establishment of vibration differential equation are the key to the structural dynamic analysis. The moment of inertia (MOI) and shear deformation were taken into account, the differential equations of in-plane free vibration about lateral bending and axial deformation of curved b...

[Abstract](645) [FullText HTML] (379) [PDF 781KB](177) [Cited by] (3)

Objective Bayesian analysis of mixture cure model based on exponential distribution

XIAO Xiang, WU Yiqi, GU Xi

2021, 35(4): 395-400.

Abstract:
A mixture cure model based on exponential distribution was proposed. By using full likelihood function and latent variables, it was easy to calculate Fisher information matrix, drive Jeffreys prior and reference priors, and the appropriateness of posterior distribution was verified. The results show...