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An Expected Average Run Length (EARL) Performance Comparison of the SSGR and EWMA Control Charts 期望平均运行长度(EARL)的SSGR和EWMA控制图性能比较
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.005
H. W. You, Z.L. Chong, W. L. Teoh, M.B.C. Khoo, W.C. Yeong
The acceleration use of control charts in industrial processes has led to the effectiveness in their evaluation by quality practitioners. This is crucial, as it influences their decisions on the choice of which control charts to employ. This study aims to explore and compare the performance of the side sensitive group runs (SSGR) and exponentially weighted moving average (EWMA) control charts. In general, the average run length (ARL) characteristics were used to evaluate the performance of these control charts. The ARL, which considers the exact shift size in the process, is restricted in the case when the practitioner cannot identify the process shift size (unknown shift size). In this situation, the expected average run length (EARL) is an alternative performance criterion. Upon comparison of the findings obtained, the EWMA chart has superior performance when (δmin, δmax) = (0.1, 0.4). In contrast, the SSGR chart overtakes the EWMA chart when (δmin, δmax) = (0.5, 0.8) and (δmin, δmax) = (0.9, 1.2), except when the sample size n = 3 for (δmin, δmax) = (0.5, 0.8). For this particular combination, the EWMA chart performs slightly better than the SSGR chart. The outcome of this study is expected to contribute to practitioners in identifying suitable control charts in process monitoring and implementation.
控制图在工业过程中的加速使用已经导致了质量从业人员对其评估的有效性。这是至关重要的,因为这会影响他们选择使用哪种控制图的决定。本研究旨在探讨和比较侧敏感组运行(SSGR)和指数加权移动平均(EWMA)控制图的性能。一般来说,平均运行长度(ARL)特征被用来评估这些控制图的性能。ARL考虑过程中确切的移位大小,在从业者无法识别过程移位大小(未知移位大小)的情况下受到限制。在这种情况下,预期平均运行长度(EARL)是一个可选的性能标准。结果表明,当(δmin, δmax) =(0.1, 0.4)时,EWMA图具有更好的性能。相反,当(δmin, δmax) =(0.5, 0.8)和(δmin, δmax) =(0.9, 1.2)时,SSGR图超越EWMA图,但当(δmin, δmax) =(0.5, 0.8)的样本量n = 3时除外。对于这种特殊的组合,EWMA图表的表现略好于SSGR图表。本研究的结果预期将有助于从业者在过程监控和实施中识别合适的控制图。
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引用次数: 0
Electrophoretic Deposition (EPD) of Multi-Walled Carbon Nanotubes (Mwcnts) Onto Carbon Fiber (CF) Fabric 多壁碳纳米管在碳纤维(CF)织物上的电泳沉积(EPD)
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.017
J Ervina, S Hamdan, MR Rahman
The Fiber Reinforced Polymer Composite (FRPC) has been widely employed in structural applications. However, adding nanoparticles such as multi-walled carbon nanotubes (MWCNTs) can be used to improve the composites' mechanical properties substantially. The purpose of this study is to investigate the stability of MWCNTs in distilled water (DW) and dimethylformamide (DMF). Electrophoretic deposition (EPD) was chosen as the method for depositing MWCNTs onto carbon fiber (CF) fabric because of the advantages of simple equipment and inexpensive cost. Thus, the effect of voltage and deposition time were examined to attain the ideal condition for the EPD of MWCNTs onto CF fabric. The stability of dispersed MWCNTs in various dispersing mediums was explored as the importance of the MWCNTs to remain stable in the medium is essential to achieve homogeneous deposition. The UV-Vis and colloidal stability test revealed that MWCNTs dispersed in DMF have greater stability than DW. Scanning Electrode Microscopy (SEM) images exhibited that 10 minutes and a 20 V voltage were the optimal conditions for the deposition of MWCNTs onto CF fabric.
纤维增强聚合物复合材料(FRPC)在结构领域得到了广泛的应用。然而,加入纳米颗粒如多壁碳纳米管(MWCNTs)可以显著改善复合材料的力学性能。本研究的目的是研究MWCNTs在蒸馏水(DW)和二甲基甲酰胺(DMF)中的稳定性。选择电泳沉积(EPD)作为碳纤维(CF)织物上沉积MWCNTs的方法,具有设备简单、成本低廉的优点。因此,我们考察了电压和沉积时间的影响,以获得MWCNTs在CF织物上的EPD的理想条件。研究了分散的MWCNTs在各种分散介质中的稳定性,因为MWCNTs在介质中保持稳定对于实现均匀沉积至关重要。UV-Vis和胶体稳定性测试表明,分散在DMF中的MWCNTs比分散在DW中的MWCNTs具有更大的稳定性。扫描电极显微镜(SEM)图像显示,10分钟和20 V电压是在CF织物上沉积MWCNTs的最佳条件。
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引用次数: 0
An Experimental Investigation On Converting Conventional to Supercharged CI Engine 传统内燃机转增压内燃机的试验研究
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.012
Balaji Ganesh N., Sri Hari P.V
Due to the increase in grounds performance of internal combustion engines, the diesel engine has become dominant forces in the power, propulsion, and energy. For domestic, industrial, and transportation applications, internal combustion engines are the more reliable and misogynist power source. Diesel engines rely on fluid Spritz dynamics for air-fuel mixtures and swirl plays a crucial role in the pattern of air motion as impacts fuel air mixing and combustion. Further-more, older studies have indicated that it affects heat transfer, combustion efficiency, and engine emissions. By varying air inlet pressure, this work demonstrates the presentation and production features of Compression Ignition engines. Using compressor, the inlet pressure of air is manipulated, and when compressed air is sent to engine at different pressures, performance parameters and heat balance sheets are calculated.
由于内燃机地面性能的提高,柴油机在动力、推进力和能量方面已经成为主导力量。对于家庭,工业和运输应用,内燃机是更可靠和厌恶女性的动力来源。柴油发动机依赖于空气-燃料混合的流体喷流动力学,而涡流在空气运动模式中起着至关重要的作用,影响着燃料-空气混合和燃烧。此外,较早的研究表明,它会影响传热、燃烧效率和发动机排放。通过改变进气压力,这项工作展示了压缩点火发动机的表现和生产特点。利用压气机控制空气的入口压力,并在不同压力下将压缩空气送入发动机,计算其性能参数和热平衡表。
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引用次数: 0
Internet of Vehicles Based On Cellular-Vehicle-To-Everything (C-V2X) 基于蜂窝车联网(C-V2X)的车联网
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.026
Nor Fadzilah Abdullah, Tan Ee Shen, Asma Abu Samah, Rosdiadee Nordin
In line with the development of automotive and traffic systems, high mobility and density in different road topologies cause scalability and delay issues due to frequent disconnection between communication nodes. From a safety aspect, Cellular-V2X (C-V2X) wireless technology was introduced by the Third Generation Partnership Project Organization (3GPP) to realise the transmission of emergency messages at critical times, anywhere. Specifically, Mode 4 C-V2X supports side-link communication without relying on a base station to provide network coverage. However, Mode 4 is susceptible to several limitations, which include half-duplex transmission, packet collision, and propagation errors that will cause intermittent connectivity issues. It is also difficult to determine appropriate parameter configurations that can increase the spectrum efficiency of dense networks to facilitate reliable and low-latency networks. The objective of this paper is to investigate the effectiveness of a Mode 4 C-V2X system under different road topologies and traffic scenarios. The study adopts a Krauss vehicular mobility model based on SUMO software to model normal and dense networks in a highway and a road intersection scenario, then perform simulation using OMNET++ software to analyse the impact of different physical layer (PHY) configurations such as modulation and coding scheme, packet size, number of resource block allocation, as well as the probability of resource reservation. The results show that the optimal configuration of parameters depends on the scenario. For highway scenarios, a lower MCS and a higher number of RBs are recommended. For road intersection scenarios, a higher MCS and a lower number of RBs are recommended. The packet size should also be in accordance with the requirements of the application used. The findings of this study can be used to assist in the design of an optimal intelligent transportation system using adaptive C-V2X parameters that can be automatically adjusted under different scenarios and network conditions.
随着汽车和交通系统的发展,不同道路拓扑的高移动性和高密度导致通信节点之间频繁断开连接,从而导致可扩展性和延迟问题。从安全角度来看,第三代合作伙伴计划组织(3GPP)引入了蜂窝v2x (C-V2X)无线技术,以实现在关键时刻,随时随地传输紧急信息。具体来说,Mode 4 C-V2X支持侧链路通信,而不依赖基站提供网络覆盖。然而,模式4容易受到一些限制,包括半双工传输、数据包冲突和传播错误,这些都会导致间歇性连接问题。确定合适的参数配置来提高密集网络的频谱效率,以实现可靠和低延迟的网络也是困难的。本文的目的是研究Mode 4 C-V2X系统在不同道路拓扑和交通场景下的有效性。本研究采用基于SUMO软件的Krauss车辆移动模型,对高速公路和十字路口场景下的正常网络和密集网络进行建模,然后利用omnet++软件进行仿真,分析不同物理层(PHY)配置(调制编码方案、分组大小、资源块分配数量、资源预留概率)对网络的影响。结果表明,参数的最优配置取决于具体的场景。对于高速公路场景,建议降低MCS和增加RBs数量。对于十字路口场景,建议设置较高的MCS和较低的RBs数量。包的大小也应该与应用程序的要求相一致。本研究结果可用于协助设计使用可在不同场景和网络条件下自动调整的自适应C-V2X参数的最佳智能交通系统。
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引用次数: 0
Failure Mode Effect Analysis in Turning of Mild Steel Under MQL Condition MQL条件下低碳钢车削失效模式影响分析
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.003
Mohd Rhafiq Mazlan, Abdullah Yassin, Abang Mohammad Nizam Abang Kamaruddin
FMEA was commonly used to improve production quality by reducing workplace failures and preventing them from happening. Nowadays, tool failures are the most common problems that can be found in the machining practice. Hence, FMEA was used to reduce tool failure occurrence and improve the production quality. In this paper, FMEA analysis was done for a turning process of mild steel. Several turning operations were done, and the failure mode and failure effect were identified. Then, the tool failure effect was studied, and the causes were generated using the Ishikawa diagram. The occurrence, severity, and detection rating were assigned, and the Risk Priority Number (RPN) was generated. FMEA Risk Matrix was used to help provide a visual aid for classifying and categorizing the level of risk. The highest risk was then identified from the highest RPN value, and the cause and prevention methods were generated for each failure effect cause. This study can be used as a guide or reference in the turning process practice for a more effective process.
FMEA通常用于通过减少工作场所故障和防止故障发生来提高生产质量。刀具失效是当今加工实践中最常见的问题。因此,采用FMEA来减少刀具失效的发生,提高生产质量。本文对某低碳钢车削加工过程进行了FMEA分析。进行了多次车削加工,确定了失效模式和失效效应。然后,对刀具失效效应进行了研究,并利用石川图导出了失效原因。分配发生、严重程度和检测等级,并生成风险优先级编号(RPN)。使用FMEA风险矩阵来帮助提供视觉辅助,对风险级别进行分类和分类。然后从最高RPN值中识别出最高风险,并针对每个失效影响原因生成原因和预防方法。本研究可为车削工艺实践提供指导或参考,使车削工艺更加有效。
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引用次数: 0
Design and Characterization of a Non-Linear Variable Inerter in Vehicle Suspension System 汽车悬架系统非线性变量惯性器的设计与表征
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.021
Goh K. Y., Soong M. F., Ramli R., Saifizul A.A., Khoo S.Y.
Inerter is a two-terminal component in suspension system such that the force at the two terminals is directly proportional to the relative acceleration of these two points. Studies have shown that the inerter can provide satisfactory vibration isolation for a number of suspension applications, including train suspension, building suspension and vehicle suspension. In the context of vehicle suspension, the existing passive inerter has been shown to provide benefits to vehicle dynamics performance measures, such as ride comfort and road holding ability. However, a basic passive inerter has fixed characteristic, and hence its potential is limited. This study overcome this limitation by incorporating variable inertia in inerter flywheel, however its non-linear characteristic needs to be determined. The method of achieving variable inertia in inerter flywheel is through introduction of movable masses or sliders attached with springs into inerter flywheel. The change of moment of inertia is caused by position change of sliders due to centrifugal force when the flywheel is rotating. Results showed that the proposed variable inerter exhibits a non-linear force-acceleration relationship with respect to its operating rotational speed. A vehicle suspension system equipped with a variable inerter is also able to further reduce vertical vehicle body acceleration and vehicle’s dynamic tire load when compared with vehicle suspension system without inerter and equipped with a passive inerter, which indirectly relates to a better vehicle ride and handling performance improvements. Hence, it can be proved that the proposed variable inerter is better than a passive inerter and is able to provide better ride comfort and road holding ability to a vehicle.
在悬架系统中,惯性器是一个双端元件,其两端的力与这两点的相对加速度成正比。研究表明,该隔振器可以为多种悬架应用提供满意的隔振效果,包括火车悬架、建筑物悬架和车辆悬架。在车辆悬架方面,现有的被动干涉器已被证明对车辆动力学性能指标有好处,如乘坐舒适性和道路持稳能力。然而,基本无源干涉器具有固定的特性,因此其潜力有限。本研究通过将变惯量加入到干涉器飞轮中,克服了这一局限性,但其非线性特性还有待确定。通过将可动质量块或带弹簧的滑块引入到惯性器飞轮中,实现了惯性器飞轮的变惯量。转动惯量的变化是由于飞轮转动时,由于离心力的作用,滑块的位置发生了变化。结果表明,所设计的可变干涉器与工作转速呈非线性力-加速度关系。与无阻尼器和装有被动阻尼器的悬架系统相比,装有可变阻尼器的悬架系统还能进一步减小车身垂直加速度和车辆动态轮胎载荷,从而间接改善车辆的平顺性和操纵性能。由此可以证明,所提出的可变阻尼器优于被动阻尼器,能够为车辆提供更好的平顺性和持路能力。
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引用次数: 0
Numerical and Experimental Investigation of Aerodynamic Characteristics of Morphing Trailing Edge Wings in The Application of MAV MAV应用中变形后缘机翼气动特性的数值与实验研究
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.009
S Kishore Kumar, Srinivas Pendyala
In the past few years, FDM basedpolymer3D printing process has flourished mainly with ABS filaments as a thermoplastic source. Food packing, medical, marine and agriculture industries employdevices and other usable items made of polymers. Utilizing layered fabrication components in these areascompelthem to have self-cleansing, anti-freezing and corrosion resistant surfaces. It is generally complex and expensive to prepare hydrophobic coatings. The present work is related to the development of a surface coating on 3D printed ABS specimens with the mentioned properties. 3D printed specimens were fabricated using Flash Forge 3D printer without any modifications, and the hydrophobic coatings were achieved by dip coating process using Tricalcium phosphate-chitin solutions with a ratio of 70:30. Static contact angle measurement was employedin gaging wettability impact on dip coated 3D printed specimens. By using digital vernier calipers and profilometer (SJ410), dimensional accuracy and surface roughness were assessed pre and post-coating. According to ASTM D570-98, water absorption tests were conducted at different time intervals. Results of the experiment showed that the hydrophobic solutions had been successfully synthesized. The maximum contact angle was achieved for solution 1(4g of tricalcium phosphate solution with 0.3g chitin solution) i.e., 109.3°. Improvement in the textureof 3D printed ABS surfaceswasobserved after dip coating. Dip-coated 3D printed ABS specimens exhibited minimal absorption based on their weight gain per area.
在过去的几年中,基于FDM的聚合物3d打印工艺主要以ABS长丝作为热塑性源而蓬勃发展。食品包装、医疗、海洋和农业行业使用由聚合物制成的设备和其他可用物品。在这些区域使用分层制造组件,迫使它们具有自清洁,防冻和耐腐蚀的表面。疏水涂层的制备通常复杂且昂贵。目前的工作是与具有上述性能的3D打印ABS样品表面涂层的开发有关。采用Flash Forge 3D打印机制作3D打印样品,不做任何修改,采用磷酸三钙-甲壳素溶液以70:30的比例浸涂工艺获得疏水涂层。采用静态接触角测量方法研究了浸渍涂层对3D打印样品润湿性的影响。采用数字游标卡尺和轮廓仪(SJ410)对涂覆前后的尺寸精度和表面粗糙度进行了评定。根据ASTM D570-98,在不同的时间间隔进行吸水试验。实验结果表明,成功地合成了疏水溶液。溶液1(4g磷酸三钙溶液和0.3g甲壳素溶液)的最大接触角为109.3°。在浸渍涂层后,3D打印ABS表面的纹理有所改善。浸渍涂层3D打印ABS样品显示最小的吸收基于他们的重量增加每面积。
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引用次数: 0
Assisted Car Platooning and Congestion Control at Road Intersections 交叉口辅助车辆排队与拥堵控制
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.030
Nor Fadzilah Abdullah, Yu Chor Kiat, Yee Yen Sing, Rosdiadee Nordin
Enhancing road safety and traffic efficiency are the important aspects and goals that automakers and researchers trying to achieve in recent years. The autonomous vehicle technology has been identified as a solution to achieve these goals. However, the adoption of fully autonomous vehicles in the current market is still in the very early stages of deployment. The objective of this paper is to develop a Cooperative Adaptive Cruise Control (CACC) model at a road intersection using platooning car-following mobility models, object detection at traffic light units, and Vehicle-to-Everything (V2X) communication through vehicular ad hoc networks (VANETs). The mobility model considers traffic simulation using the SUMO-PLEXE-VEINS platforms integration. Next, a prototype of an assisted car platooning system consisting of roadside unit (RSU) and on-board units (OBU) is developed using artificial intelligence (AI)-based smart traffic light for obstruction detection at an intersection and modified remote-control cars with V2X communication equipped with in-vehicle alert notification, respectively. The results show accurate detection of obstruction by the proposed assisted car platooning system, and an optimised smart traffic light operation that can reduce congestion and fuel consumption, improve traffic flow, and enhance road safety. The findings from this paper can be used as a baseline for the framework of CACC implementation by legislators, policymakers, infrastructure providers, and vehicle manufacturers.
提高道路安全和交通效率是近年来汽车制造商和研究人员努力实现的重要方面和目标。自动驾驶汽车技术已被确定为实现这些目标的解决方案。然而,目前市场上采用全自动驾驶汽车仍处于非常早期的部署阶段。本文的目标是在十字路口开发一种合作自适应巡航控制(CACC)模型,该模型使用队列车辆跟随移动模型、红绿灯单元的目标检测以及通过车辆自组织网络(VANETs)进行的车对一切(V2X)通信。移动性模型考虑了使用sumo - plexe - vein平台集成的交通仿真。接下来,利用基于人工智能(AI)的交叉口障碍物检测智能交通灯和配备车内警报通知的V2X通信的改装遥控汽车,分别开发了由路边单元(RSU)和车载单元(OBU)组成的辅助汽车队列系统原型。结果表明,所提出的辅助车辆队列系统可以准确检测障碍物,优化的智能交通灯操作可以减少拥堵和燃油消耗,改善交通流量,提高道路安全。本文的研究结果可以作为立法者、政策制定者、基础设施提供商和汽车制造商实施ccc框架的基线。
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引用次数: 0
Evaluation of End-of-Life Vehicle Recycling in India: A Techno-Socio-Economic Analysis 印度报废汽车回收评估:技术-社会经济分析
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.023
Altaf Hossain Molla, Mohd Radzi Abu Mansor, Nizaroyani Saibani, Noor Azuan Hashim, Zambri Harun
In light of the rapidly advancing Indian automotive sector, the issue of end-of-life vehicles (ELVs) has emerged as a matter of significant concern. Particularly critical aspects encompass recycling procedures, environmental impacts, and social implications. With the inevitable proliferation of ELVs anticipated in the next decade, the imperative for effective and sustainable ELV management becomes paramount, necessitating a comprehensive analysis of India's burgeoning ELV recycling landscape. The present study endeavors to scrutinize India's ELV recycling system from technological, social, and economic perspectives, constituting a preliminary step toward a judicious evaluation of sustainability in ELV recycling and performing a SWOT (strengths, weaknesses, opportunities, and threats) analysis to appraise India's ELV recycling framework comprehensively. Furthermore, the ensuing recommendations shall furnish invaluable insights for the development and implementation of forthcoming regulatory and legal frameworks that adequately incorporate the economic, social, environmental, and technological aspects of ELV recycling in India. To accomplish this endeavor, the study has diligently conducted in-depth interviews with pertinent stakeholders, undertaken rigorous field investigations, and administered comprehensive surveys. Additionally, an exhaustive examination of the existing literature has been undertaken to probe the current ELV recycling system, address lingering challenges, and proffer recommendations to elevate the ELV recycling infrastructure. The outcomes of this study may assist in developing deeper comprehension of India's ELV recycling system while furnishing pragmatic recommendations to fortify its efficacy.
鉴于快速发展的印度汽车行业,报废车辆(elv)的问题已经成为一个值得关注的问题。特别重要的方面包括回收程序、环境影响和社会影响。随着未来十年电动汽车的不可避免的扩散,有效和可持续的电动汽车管理变得至关重要,有必要对印度新兴的电动汽车回收前景进行全面分析。本研究试图从技术、社会和经济的角度审视印度的电动汽车回收系统,构成对电动汽车回收可持续性进行明智评估的初步步骤,并执行SWOT(优势、劣势、机会和威胁)分析,以全面评估印度的电动汽车回收框架。此外,随后的建议将为制定和实施即将出台的监管和法律框架提供宝贵的见解,这些框架将充分结合印度电动汽车回收的经济、社会、环境和技术方面。为了完成这项工作,本研究孜孜不倦地与相关利益相关者进行了深入访谈,进行了严格的实地调查,并进行了全面的调查。此外,对现有文献进行了详尽的检查,以探讨当前的ELV回收系统,解决遗留的挑战,并提出建议,以提高ELV回收基础设施。本研究的结果可能有助于深入了解印度的电动汽车回收系统,同时提供实用的建议,以加强其功效。
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引用次数: 0
Comparison Study On Pinch-Hitting Vibration Signal Analysis for Automotive Bearing: I-KazTM and I-Kaz 3D 汽车轴承夹击振动信号分析的比较研究:I-KazTM和I-Kaz 3D
Q4 ENGINEERING, MULTIDISCIPLINARY Pub Date : 2023-10-19 DOI: 10.30880/ijie.2023.15.05.027
A. Othman, H. Hamid, M. A. F. Ahmad, M. Z. Nuawi
Rotating machines are now an essential part of the automotive industry. Meanwhile, a bearing is playing the most important component of rotating machinery. To sustain the system's smooth running, maintenance methods such as preventive maintenance, breakdown maintenance, and predictive maintenance are used. Under preventive maintenance, vibration analysis is used to diagnose machines bearing faults. The main objective is to recognize bearing defects in a mechanical device by acquiring signals from the bearing using data acquisition hardware. This analysis is conducted under various load torque conditions, speeds, and defect types. A modular hardware configuration consisting of an accelerometer acquires the vibration signal. The signals are analyzed by using I-kazTM and I-kaz 3D signal analysis and its main objective is to observe the degree of dispersion data from its mean point. This analysis resolves the issues associated with time domain analysis. This pinch-hitting analysis research was conducted in two stages. The first stage is an experimental process that uses 3 types of bearings, the healthy (BL), inner race fault (IRF), and defect at outer race (ORF) bearing on the Machine Fault Simulator and forces with a different type of speed (1000, 1500 and 2500 rpm) and load variation (0.0564, 0.564 and 1.1298 N-m). In the second stage, computing the coefficient value and plots of signal’s I-kazTM and I-kaz 3D based on the bearings type were done accordingly. As a result, the analysis for detecting inner race fault, the deviation percentage averages calculation obtained the I-kazTM coefficient shows a better result with 96.86% by comparing to the I-kaz 3D that achieves 94.20%. Similarly, for the outer race defect, I-kazTM lead with 65.40% compared to I-kaz 3D with only 54.82%.
旋转机械现在是汽车工业的重要组成部分。同时,轴承是旋转机械中最重要的部件。为了保证系统的正常运行,需要采用预防性维护、故障维护和预测性维护等维护方法。在预防性维修中,振动分析是诊断机械轴承故障的常用方法。主要目标是通过使用数据采集硬件从轴承获取信号来识别机械设备中的轴承缺陷。该分析是在各种负载、扭矩条件、速度和缺陷类型下进行的。由加速度计组成的模块化硬件配置获取振动信号。利用I-kazTM和I-kaz三维信号分析对信号进行分析,其主要目的是观察数据离其均值的色散程度。这种分析解决了与时域分析相关的问题。本次捏击分析研究分两个阶段进行。第一阶段是一个实验过程,在机器故障模拟器上使用3种类型的轴承,健康(BL),内圈故障(IRF)和外圈(ORF)轴承缺陷,以及不同类型速度(1000,1500和2500 rpm)和负载变化(0.0564,0.564和1.1298 N-m)的力。第二阶段,根据轴承类型计算信号的I-kazTM和I-kaz 3D的系数值和图。结果,对检测内圈故障的分析,偏差百分比平均计算得到的I-kazTM系数为96.86%,优于I-kaz 3D的94.20%。同样,对于外圈缺陷,I-kazTM的领先率为65.40%,而I-kaz 3D的领先率仅为54.82%。
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引用次数: 0
期刊
International Journal of Integrated Engineering
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