Advances in Mechanical Engineering最新文献_第10页

Periodic wave impeding barrier as a countermeasure of ground vibration 作为地面振动对抗手段的周期波障

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-08-01 DOI: 10.1177/16878132231190994

Hinde Laghfiri, N. Lamdouar, S. Abbas, El Mostapha Boudi

{"title":"Periodic wave impeding barrier as a countermeasure of ground vibration","authors":"Hinde Laghfiri, N. Lamdouar, S. Abbas, El Mostapha Boudi","doi":"10.1177/16878132231190994","DOIUrl":"https://doi.org/10.1177/16878132231190994","url":null,"abstract":"Single wave impeding barrier has been widely evaluated to attenuate vibrations. Nevertheless, research on the utilization of multiple-layer wave impeding barriers is extremely limited since most studies focus on periodic foundations and periodic piles. In this work, the attenuation of ground vibration utilizing a periodic wave-impeding barrier composed of rigid and elastic materials was investigated by applying improved plane wave expansion approach using the notion of phononic crystals, then the simulation of the proposed barrier is presented to demonstrate its relevance to the real case, where it can isolate more than 75% of vibration induced by El Centro earthquake. The effects of the key factors on the attenuation zone of the proposed wave impeding barrier are evaluated by conducting a thorough parametric study. Numerical results demonstrate that the mitigation efficiency at low frequencies increased as Young’s modulus of elastic material increased and as the density of two materials and periodic constant decreased. In addition, the proposed ANN model showed high accuracy to predict those parameters in order to choose them according to the desired attenuation zone. The findings of this study will aid the stakeholders in selecting the optimal geometrical and physical characteristics of the suggested barrier to attenuate vibration.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43109860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Influence of coupling factors on structural reliability based on polynomial response surface optimization model 基于多项式响应面优化模型的耦合因素对结构可靠度的影响

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-08-01 DOI: 10.1177/16878132231184145

Kaijia Jiang, Junhao Wang, Zhongquan Chen, Qiangqiang Zhou, Shuheng Jiang

{"title":"Influence of coupling factors on structural reliability based on polynomial response surface optimization model","authors":"Kaijia Jiang, Junhao Wang, Zhongquan Chen, Qiangqiang Zhou, Shuheng Jiang","doi":"10.1177/16878132231184145","DOIUrl":"https://doi.org/10.1177/16878132231184145","url":null,"abstract":"The sensitivity analysis model is frequently used to express the influence of conditional elements on structural reliability. However, the traditional sensitivity analysis model is limited to a few influencing factors, and has a small scope of application. In this paper, a modified sensitivity model is proposed by combining the optimal polynomial response surface function with the Sobol sensitivity algorithm. And the sensitivity calculation approach was combined with coupling factor test design, range verification, multi-body dynamics analysis and structural statics analysis, which enables to achieve the quantitative sensitivity value of the influence of conditional factors on structural reliability. Finally, a typical harvester structure is selected as a case, to verify the evaluation accuracy and effectiveness of the revised model. The results show that the sensitivity of threshing drum speed has the greatest influence, while the sensitivity of granary load has the least influence. The average quantitative prediction accuracy of revised approach is up to 97.36%. The revised model can accurately evaluate the sensitivity value of coupled influencing factors for industrial equipment.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42208366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

AZ31-Mg metal matrix composite in metallurgical and testing approaches AZ31镁基金属基复合材料的冶金及检测方法

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231184199

Betelhem Haymanot Maryam, D. Sinha, Samuel Kefyalew, S. S. Gautam, S Kumar, S. Pande

{"title":"AZ31-Mg metal matrix composite in metallurgical and testing approaches","authors":"Betelhem Haymanot Maryam, D. Sinha, Samuel Kefyalew, S. S. Gautam, S Kumar, S. Pande","doi":"10.1177/16878132231184199","DOIUrl":"https://doi.org/10.1177/16878132231184199","url":null,"abstract":"The objective of this research is to experimentally investigate the metallurgical, mechanical, and tribological behavior of Mo S 2 , SiC, and Zr O 2 reinforced AZ31 magnesium metal matrix composite (MMC) fabricated via powder metallurgy process. Accordingly, the mixing of the powders was carried out through ball milling operation at various times with constant speeds. The compaction of the milled powder was carried out on hydraulic press at various compaction pressures. The improvement of the wear resistance performance at 10 and 5 vol.% SiC were revealed around 12.9% and 25.8%. The fracture mechanisms of the optimal specimen resulting from the compression test were studied under SEM observation and it revealed that both ductile and brittle fractures occurred. The results from the confirmation test revealed an improvement of 2.04 g/cm3, 13%, 110.35 MPa, and 1293.399 MPa for actual density, porosity, ultimate strength, and hardness, respectively. The uniform nature of particle distribution was observed in SEM micrograph under investigation of the microstructure of the sample. The average particle size of the sample was also obtained around 809.14 nm. The proposed material is expected to be useful for various automotive and aerospace applications precisely for pistons and wings of airplane in aerospace.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49658841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Peristaltic pumping of ternary hybrid nanofluid between two sinusoidally deforming curved tubes 三元杂化纳米流体在两个正弦变形弯管之间的蠕动泵送

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231189373

Z. Abbas, Rabia Mehboob, M. Rafiq, S. Khaliq, Amjad Ali

{"title":"Peristaltic pumping of ternary hybrid nanofluid between two sinusoidally deforming curved tubes","authors":"Z. Abbas, Rabia Mehboob, M. Rafiq, S. Khaliq, Amjad Ali","doi":"10.1177/16878132231189373","DOIUrl":"https://doi.org/10.1177/16878132231189373","url":null,"abstract":"This paper aims to inspect the mixed convective peristaltic transport of ternary hybrid nanofluids between two sinusoidally deforming lubricated curved concentric tubes. Titanium, Alumina, and copper nanoparticles are taken for the current problem with blood as a base fluid. The heat equation is also modeled in the presence of heat generation/absorption. The curved shape structure of flow geometry from the external side with a flexible complex nature of the peristaltic endoscope present inside that is similar to the endoscopy of a living organ. The governing expressions of the proposed model are followed under the long wavelength and small Reynolds number hypothesis. The exact solutions for flow fields that is, velocity, temperature, pumping phenomenon, and streamlines are attained by utilizing the separation of variable technique. Furthermore, graphs are used to examine and discuss different parameters outcomes. The outcomes reveal that liquid velocity enhances near the outer wall of the sinusoidal curved tube but it declines with the peristaltic endoscope for enhancing curvature parameter. The fluid temperature is reduced by enhancing the values of curvature parameter.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41415947","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on the improvement of tilt characteristics for the axial piston pump cylinder block based on the magnetic auxiliary support for distributing pair 基于分布副磁辅助支撑改善轴向柱塞泵缸体倾斜特性的研究

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231184331

Biao Zhang, Boran Du, Dong Xiang, Jihai Jiang

{"title":"Research on the improvement of tilt characteristics for the axial piston pump cylinder block based on the magnetic auxiliary support for distributing pair","authors":"Biao Zhang, Boran Du, Dong Xiang, Jihai Jiang","doi":"10.1177/16878132231184331","DOIUrl":"https://doi.org/10.1177/16878132231184331","url":null,"abstract":"Due to the unbalanced effect of force and torque on the axial piston pump cylinder block, a wedge angle of oil film exists between the valve plate and the cylinder block. The cylinder block tilt seriously affects the oil film and the distributing pair lubrication state, leading to boundary lubrication appears in some cases. To reduce the impact of the tilt on the cylinder block of axial piston pump, the magnetic auxiliary support (MAS) for the pair is proposed. The MAS reduces the overturning torque on the cylinder block by the auxiliary magnetic support. Then the tilt characteristics of the cylinder block are improved. In this paper, the cylinder block overturning torque equations under the support of MAS are established, and the improvement of overturning torque is analyzed. An experimental platform was constructed to measure the thickness of the oil film of the pair and test the tilt of the cylinder block. The experimental results showed that the MAS can effectively improve the tilt of the cylinder block and the performance of the axial piston pump. This method has certain reference significance for the research of axial piston pumps.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44784224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research of grinding efficiency and main duct wear of pendulum mill based on CFD-DEM co-simulation 基于CFD-DEM联合仿真的摆磨磨效率与主道磨损研究

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231187812

Wei Lu, Zhipeng Yao, Jia Yao, Shenglong Meng, Xuemei Li, Gangwei Shi

{"title":"Research of grinding efficiency and main duct wear of pendulum mill based on CFD-DEM co-simulation","authors":"Wei Lu, Zhipeng Yao, Jia Yao, Shenglong Meng, Xuemei Li, Gangwei Shi","doi":"10.1177/16878132231187812","DOIUrl":"https://doi.org/10.1177/16878132231187812","url":null,"abstract":"Pendulum mill is a widely used grinding equipment in powder processing industry. Less in-depth studies have been carried out especially for grinding efficiency and wear. Through theoretical analysis, the main influencing parameters were screened, among which spindle speed and spade degree mainly affect the grinding efficiency, but wind velocity mainly causes the main duct wear. The Fluent-DEM co-simulation method is used for the study of the complex physical field of mill operation. The simulation shows that grinding efficiency increases with spindle speed, but the increase from 110 to 120 rev/min is not significant, so the choice of spindle speed should consider both grinding efficiency and energy consumption. The spade degree determines the spade position, the closer the spade is to the grinding roller, the higher the grinding efficiency. Wind velocity has little effect on grinding efficiency, but it does affect the likelihood of particles entering the main duct and causing wear. Multi-objective optimization determines a spindle speed of 110 rev/min and a spade angle of −12° at a wind velocity of 46 m/s to achieve maximum grinding efficiency and minimum wear. This study provides a digital analysis basis for optimizing the operating parameters of the pendulum mill.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44367874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and simulation of a wall-climbing robot car using 3D printing technology and the vacuum method 基于3D打印技术和真空法的爬壁机器人汽车的设计与仿真

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231186277

V. Pham, Hoa-Cuc Nguyen, Ngoc-Duong Nguyen, Bich-Ngoc Mach, Thanh Q. Nguyen

{"title":"Design and simulation of a wall-climbing robot car using 3D printing technology and the vacuum method","authors":"V. Pham, Hoa-Cuc Nguyen, Ngoc-Duong Nguyen, Bich-Ngoc Mach, Thanh Q. Nguyen","doi":"10.1177/16878132231186277","DOIUrl":"https://doi.org/10.1177/16878132231186277","url":null,"abstract":"This paper presents a novel approach to building a vertical wall-climbing robot using the vacuum method and the internal contact model. By leveraging advanced 3D printing technology, the proposed robot model addresses three key challenges encountered in previous studies: achieving high traction force for smooth and efficient movement, ensuring low roughness and fast shifting capability, and minimizing production costs for mass deployment. The vacuum suction method employs an air compressor to generate suction force, enabling the robot to ascend walls vertically. This process significantly increases airflow velocity, creating a low-pressure area that enhances adhesion to the surface. The utilization of 3D printing technology allows for the creation of the robot’s bodywork and essential components, facilitating adjustments in the mechanical system design. The developed robot is well-suited for inspecting and maintaining hazardous areas in tall buildings and conducting surveillance in factory settings. Moreover, it proves valuable for cleaning and monitoring slippery surfaces with minimal roughness. The research findings demonstrate that incorporating 3D printing technology in the design and construction of wall-climbing robots has successfully achieved the desired speed and grip capabilities.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49096176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Parallel simulation of high-speed trains controlled by radio block centers using Spark cloud 基于Spark云的无线电块中心控制高速列车并行仿真

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231186258

Xin Tao, Yonghua Zhou, Yiduo Mei, H. Fujita

{"title":"Parallel simulation of high-speed trains controlled by radio block centers using Spark cloud","authors":"Xin Tao, Yonghua Zhou, Yiduo Mei, H. Fujita","doi":"10.1177/16878132231186258","DOIUrl":"https://doi.org/10.1177/16878132231186258","url":null,"abstract":"Train movement prediction simulation is an effective method of enhancing operation safety and efficiency of railway transportation. Train movement data generated by the trains running in a railway network are huge, and on the other hand, the data quantity generated from data processing is also explosively increased for the analysis and decision such as conflict recognition and scheduling optimization, which greatly increases the time cost of prediction simulation. This paper attempts to propose a train movement model driven by the movement authorities (MAs) issued from radio block centers (RBCs) and its parallel simulation algorithm realized on Spark cloud. This paper provides a solution of iterative computing of dynamic process simulation based on cloud. Different from the general big data processing of independent datasets, the resilient distributed datasets are expandable along iterative computing processes. The Dataframe of SparkSQL modules on Apache Spark is employed to handle the problems of usage interdependency of datasets. The parallel simulation is realized by Scala language that is used to build the Spark platform. The simulation results on a high-speed railway network demonstrates that the proposed train movement model and parallel algorithm can achieve theoretical rationality and decrease the time cost to satisfy real-time performance.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44438817","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research on dynamic characteristic of compressor RIP under thermal oxygen aging and variable preload conditions 热氧老化和变预负荷条件下压缩机RIP动态特性研究

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231186734

Junjie Chen, Changyao Chen, Yufeng Gan, Jia Liu, Xiang-yu Gao

{"title":"Research on dynamic characteristic of compressor RIP under thermal oxygen aging and variable preload conditions","authors":"Junjie Chen, Changyao Chen, Yufeng Gan, Jia Liu, Xiang-yu Gao","doi":"10.1177/16878132231186734","DOIUrl":"https://doi.org/10.1177/16878132231186734","url":null,"abstract":"The dynamic characteristics of rubber isolation pad (abbreviated as RIP) after service under the high temperature thermal oxygen aging and the variable preloads have preload dependence and thermal oxygen aging dependence, which is a crucial problem for matching the vibration isolation system of air conditioner compressor to reveal the dynamic characteristic mechanism of the RIP with different preloads and thermal oxygen aging conditions. The Peck model is first introduced to characterize the thermal oxygen aging factor, the fractional derivative Kelvin-Voigt thermal oxygen aging-perturbation model (FDKVTPM) and the Coulomb frictional thermal oxygen aging-perturbation model (CFTPM) are established to describe the frequency dependence and the amplitude dependence, respectively. The thermal oxygen aging-dynamic characteristic model of the RIP is built by considering the influence of variable preloads, the model parameters under different preloads are further identified, the validity of the model was examined by the experimental data. The concepts of the stiffness transition point (STP) and the stiffness transition frequency (STF) are innovatively proposed to better describe softening effect of the RIP under variable preload and variable amplitude working conditions. The results show that the static stiffness of RIP increases by 20.7%, the dynamic stiffness increases by 9.3%, and the loss factor decreases by 35% after thermal oxygen aging under different preload conditions, which can lay a theoretical foundation for in-depth study of the stiffness matching and optimization of air conditioner compressor with the RIP.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48324090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Study on energy excitation effect and structure optimization of vibratory vibrator considering captured road 考虑被俘路面的振动激振器能量激励效应及结构优化研究

IF 2.1 4区工程技术

Advances in Mechanical Engineering Pub Date : 2023-07-01 DOI: 10.1177/16878132231186014

Zhiqiang Huang, Ruohao Wang, Lei He, Mingwei Fu, Yuxi Xi

{"title":"Study on energy excitation effect and structure optimization of vibratory vibrator considering captured road","authors":"Zhiqiang Huang, Ruohao Wang, Lei He, Mingwei Fu, Yuxi Xi","doi":"10.1177/16878132231186014","DOIUrl":"https://doi.org/10.1177/16878132231186014","url":null,"abstract":"This paper focuses on the influence of road weight captured by vibration on vibratory vibrator energy excitation and the optimization of vibratory vibrator baseplate when there is road instead of direct contact between baseplate and the ground. For this purpose, based on the vibration attenuation formula of the foundation surface, the variation law of the captured road weight is obtained. The excitation dynamics model considering the captured road weight is constructed and verified. The energy excitation effect of vibration system is analyzed. By using topology optimization method, the baseplate is optimized, and the comparative study of vibratory vibrator excitation effect before and after optimization is carried out. In the process of energy transmission of the vibrator, the reaction mass will consume most of the energy, the actual output vibratory wave energy is only 5.5% of the total energy. The octagonal I-steel baseplate can reduce its weight by 442 kg while ensuring its rigidity, and the energy excitation effect is relatively improved by 18.2%. The research will provide a reference for improving the energy excitation effect of vibratory vibrator considering the weight of the captured road.","PeriodicalId":49110,"journal":{"name":"Advances in Mechanical Engineering","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41754341","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0