Advances in Mechanical Engineering (AIME) is a JCR Ranked, peer-reviewed, open access journal which publishes a wide range of original research and review articles. The journal Editorial Board welcomes manuscripts in both fundamental and applied research areas, and encourages submissions which contribute novel and innovative insights to the field of mechanical engineering

Advances in Mechanical Engineering (AIME) is a JCR-ranked, peer-reviewed, open access journal that publishes a wide range of original research and review articles. The journal's Editorial Board welcomes manuscripts in both fundamental and applied research areas and encourages submissions that contribute novel and innovative insights to the field of mechanical engineering.

《Advances in Mechanical Engineering》是一本经过同行评审的开放获取期刊，具有JCR排名，发表广泛的原创研究和综述文章。期刊编辑委员会欢迎在基础和应用研究领域的稿件，并鼓励提交对机械工程领域贡献新颖和创新见解的作品。

Advances in Mechanical Engineering

A double coil magnetorheological (MR) valve with an outer annular resistance gap was designed and prototyped. The finite element modeling and analysis of double coil MR valve were carried out using ANSYS/Emag software, and the optimal magnetic field distribution and magnetic flux density of the double coil MR valve were achieved. The mechanism of the pressure drop was studied by building a mathematical model of pressure drop in the double coil MR valve. The proposed double coil MR valve was prototyped and its performance was experimentally evaluated. The new MR valve design has improved the efficiency of double coil MR valve significantly.

Guoliang Hu

Ming Long

Ming Huang

Weihua Li

Design, Analysis, Prototyping, and Experimental Evaluation of an Efficient Double Coil Magnetorheological Valve

高效双线圈磁流变阀的设计、分析、原型制作与实验评估

Lecture Notes in Mechanical Engineering

ABCM Series on Mechanical Sciences and Engineering

ABCM机械科学与工程系列丛书

A snake-like robot has flexible mobility and high stability with low center of mass. It is very useful for complex environment exploration. This article develops two types of snake-like robots with different structure, shape, and modular joints. One (named as HITSZ-Snakebot I) is composed of 10 single degree-of-freedom modular joints, and the other (called HITSZ-Snakebot II) comprised eight 2-degree-of-freedom modular spherical-shape joints. The joints of the two types of robots are arranged as the same layout, that is, "Yaw-Pitch- Yaw-Pitch-…." The difference lies that, for the former, each rotation axes ("Yaw" or "Pitch") is designed as one modularized unit, while for the latter, two adjacent rotation axes ("Yaw" and "Pitch") are designed as one modularized unit. The exterior frame of each 2-degrees-of-freedom joint is designed as a spherical structure, which is connected with the motor through two-stage reduction mechanism. Therefore, the drive torques are largely increased. Many small passive wheels are mounted along a circle of the exterior surface. Such design largely decreases the friction between the robot and the road, and it also has the effect of compensating gravity when the space simulation is applied. At last, two types of prototypes are developed and experimented. The results show that the developed robots have high mobility and flexibility.

Zonggao Mu

Haomiao Wang

Wenfu Xu

Tianliang Liu

Hongtao Wang

Two types of snake-like robots for complex environment exploration: Design, development, and experiment

两种用于复杂环境探索的蛇形机器人：设计、开发与实验

Urban rail vehicle power supply short interruptions or prolonged paralysis situation sometimes occurs, which will cause the entire line outage. If the train through the battery to achieve emergency traction, it will be able to effectively solve the problem of train interval stop due to external power supply reasons. This article proposes an emergency traction system, using lithium-ion batteries as traction power, carrying out the design and research on the function of lithium-ion emergency traction system for rail transit vehicles. Through the design of the power supply system, the design of the emergency traction power supply, the design of the conversion control and safety protection circuit, the design of the traction system, and the design of the auxiliary system, the train can be run to the next station under the emergency power supply, and the effectiveness of the scheme is verified by simulation. Moreover, the transformation on the basis of the existing Shanghai 952 train illustrates the feasibility of the existing train to achieve the emergency traction function and provides guarantee for the safe operation of the train.

Xiaoming Xu

Xudong Sun

Qiaolian Zhou

Xinhua Jiang

Donghai Hu

Ren He

Design and research on the function of lithium-ion batteries emergency traction system for rail vehicles

轨道车辆锂离子电池应急牵引系统功能设计与研究

An ejection aperture nozzle is the essential part for all microdrop generation techniques. The diameter size, the flow channel geometry, and fluid impedance are the key factors affecting the ejection capacity. A novel low-cost fabrication method of microglass nozzle involving four steps is developed in this work. In the first heating step, the glass pipette is melted and pulled. Then, the second heating step is to determine the tip cone angle and modify the flow channel geometry. The desired included angle is usually of 30~45 degrees. Fine grind can determine the exact diameter of the hole. Postheating step is the final process and it can reduce the sharpness of the edges of the hole. Micronozzles with hole diameters varying from 30 to 100 µm are fabricated by the homemade inexpensive and easy-to-operate setup. Hydrophobic treating method of microglass nozzle to ensure stable and accurate injection is also introduced in this work. According to the jetting results of aqueous solution, UV curing adhesive, and solder, the fabricated microglass nozzle can satisfy the need of microdroplet jetting of multimaterials.

Dan Xie

Xuefeng Chang

Xiayun Shu

Junfeng Xiao

Honghai Zhang

Fabrication of Microglass Nozzle for Microdroplet Jetting

微玻璃喷嘴的制备用于微滴喷射

Nanoparticles have numerous applications and are used frequently in different cooling, heating, treatment of cancer cells and manufacturing processes. The current investigation covers the utilization of tetra hybrid nanofluid (aluminium oxide, iron dioxide, titanium dioxide and copper) for Crossflow model over a vertical disk by considering the shape effects (bricks, cylindrical and platelet) of nanoparticles, electro-magneto-hydrodynamic effect and quadratic thermal radiation. The present study is devoted to present the mathematical formulation of the tetra-hybrid nanofluid flow in a porous channel with stretching/shrinking walls. The present inspection model is derived from given partial differential equations (PDEs) and then transformed into a system of ordinary differential equations (ODEs) by incorporating similarity variables. The transformed ODEs are solved using the bvp4c methodology, which yields numerical results. From the obtained results it is observed that the maximum amount of [Formula: see text] happens when there is slightly increase in [Formula: see text] with stretched wall that is [Formula: see text]. A high radiation value indicates a considerable contribution from radiative heat transfer, whereas stretching and shrinking increase and reduce the size of the boundary. The combined impact caused an increase in the Nusselt number. The graphical and tabular representations are used to explain the physical behaviour of various model parameters. Previous outcomes are also contrasted with the current outcomes.

Meshal Shutaywi

Jawad Raza

Liaquat Ali Lund

Zahir Shah

Narcisa Vrinceanu

Wejdan Deebani

Optimization of heat transfer in a channel with stretching walls using a magnetized tetra-hybrid nanofluid

磁化四混合纳米流体在拉伸壁通道中传热优化

Due to the balanced strength-plasticity, gradient structural (GS) materials have received much attention in recent years. Extrusion machining (EM), a new severe plastic deformation, can prepare GS metal sheets in one step. However, studies on the forming mechanism and mechanical properties of GS plates prepared by EM are insufficient, and there is a gap in their microstructure evolution and thermal stability. Combining numerical simulation and experiments, the GS pure copper sheets prepared under different extrusion thicknesses t ch were systematically investigated. The results showed that the prepared sheets exhibited significant gradient distributions in equivalent strain, grain size, and hardness, which could be adjusted by varying t ch . As t ch increased, the material strength decreased, and the elongation tended to increase. Moreover, the increased t ch contributed to a higher lateral extrusion machining ratio. From the coarse-grained layer to fine-grained layer, the grain orientation tended to be randomized. When the annealing temperature exceeded 250°C, the gradient structure gradually disappeared, and the hardness greatly decreased. Upon annealing at 350°C, the tensile strength and elongation approximated the initial annealed samples. Accordingly, the GS sheets prepared by EM possessed better properties and provided relevant guidance to improve the theory and application of related processes.

Rujie Li

Rongbin Deng

Xueqin Pang

Peixuan Zhong

Process and mechanism of gradient structural pure copper sheets prepared by extrusion machining

挤压加工制备梯度结构纯铜板的工艺与机理

The external combustion hot blast stove is widely used in the steelmaking industry due to the advantage of providing a large amount of high-temperature and stable hot blast for blast furnaces. To research the thermal efficiency and stability of external combustion hot blast stoves, the non-equilibrium porous medium model coupled with transient thermal analysis is used to discuss the characteristics of two types of external combustion hot blast stoves during the cyclic operation process. In this paper, a comparison of the numerical data and in situ data during one cycle to ensure the accuracy of the calculation, which of the results showed that the temperature maximum relative error value is within 3%. The numerical results displayed that the velocity and temperature distribution of fluid are mainly affected by pressure, flow rate, cycle time, and geometric structure, where the hot blast temperature is affected by the cycle time but the distribution of velocity and relative pressure are affected by the height of hot blast branch. It can be concluded that the flow field and the structure of type A hot blast stove are more stable than that of type B by comparing the results of two types of hot blast stoves.

YuFeng Gan

Chichun Lee

Tiaoyuan Wu

Junjie Chen

Xiangdong Gao

3D thermodynamics and parameters analysis of the external combustion hot blast stove

外燃式热风炉的三维热力学及参数分析

This work presents the structural design of a propeller, with its profile established using the OpenProp software for a 5 m long competition catamaran at a speed of 5.5 m/s. The materials selected using the Ashby method were polymer matrix composites, and the chosen manufacturing method was vacuum bagging. The determination of the stacking sequence was initially done using panel theory and the macromechanics of composite materials. The stacking sequence was then optimized using the finite element method with Abaqus CAE. Experimental validation was conducted through instrumented cantilever bending tests on both specimens and the blade. The finite element results showed errors of less than 5% compared to the experimental measurements, thus validating the simulations and allowing the blade to be designed with static safety factors greater than eight under operational service conditions.

Julio Cuellar Posada

Santiago Marín Jiménez

Juan Manuel Meza

Structural design of a polymer matrix composite ship propeller

聚合物基复合材料船用螺旋桨的结构设计

In this study, an algorithm was developed to detect hunting oscillation in railway vehicles using only accelerometers. Typically, the wheel profile of most railway vehicles has a conical shape, causing inherent hunting oscillation. The critical speed at which hunting oscillation occurs is determined by the wheel profile, rail profile, and dynamic characteristics of the railway vehicles. Hunting oscillation significantly impairs ride comfort, reduces running stability, and increases the risk of accidents such as derailment. Therefore, if hunting oscillation occurs during railway operation, it must be detected, and a deceleration procedure should be applied immediately to ensure dynamic stability. The detection algorithm in this study is based on the geometric behavior of the bogie. It utilizes longitudinal and lateral acceleration data from accelerometers installed on the upper frame of the bogie above the axle boxes. The algorithm processes the acceleration data to obtain the hunting oscillation frequency and harmonics, integrating all this data to calculate the Index of Hunting Oscillation. Validation was performed through simulations using a standard electric train model, confirming the algorithm’s effectiveness. Additionally, tests on actual bogies using a roller rig validated the algorithm’s performance in detecting hunting oscillation effectively.

Ji Hwan Shin

Joon Hyuk Park

Yu Jeong Shin

Development of hunting oscillation detection algorithm for railway vehicles by using accelerometers

铁路车辆狩猎振动检测算法的发展：基于加速度计的应用

短名	Lect. Note Mech. Eng.
Journal Impact	1.77
国际分区	THERMODYNAMICS(Q3)

ISSN	1687-8132, 1687-8140, 2195-4356, 2195-4364
h-index	29

涉及主题	工程类物理计算机科学量子力学热力学数学材料科学机械工程人工智能复合材料结构工程生物地理经济机械化学地质学航空航天工程几何学电气工程管理操作系统控制（管理）
出版信息	出版商: SAGE Publications Inc.，出版周期: ，期刊类型: journal，开源期刊: 是
基本数据	创刊年份: 2009，原创研究文献占比: 92.82%，自引率:5.30%， Gold OA占比: 91.65%
期刊费用	$2650详情
平均审稿周期	网友分享经验：较慢,6-12周
平均录用比例	网友分享经验：容易

Advances in Mechanical Engineering

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