Motor Manufacturers Research Articles

Pengaruh Pengetahuan dan Kepatuhan Terhadap Keselamatan dan Kesehatan Kerja pada Shop Packing PT. Yamaha Indonesia Motor Manufacturing

This research aims to determine the effect of knowledge and compliance on K3. This research was carried out at PT Yamaha Indonesia Motor Manufacturing West Java. The research method is descriptive quantitative verification with multiple linear regression analysis using SPSS25 calculations. The population consists of employees of at the packing shop, totaling 102 individuals. Using Slovin's formula with a 5% significance level, 81 respondents were selected. The sampling method applied random sampling techniques based on the criteria for permanent and contract employees. Based on the research results, it can be concluded that, knowledge with a score of 200 is in the high category, compliance with a score of 174 is quite high, while, K3 with a score of 206 is in the good category, knowledge partially has a very significant positive effect with a sig value of 0.001 < 0.05 while tcount is 4.813 > from t table 1.988 on K3, compliance has a very significant positive effect with a sig value of 0.000 < 0.05 while tcount is 3.154 > T table 1.988 towards K3, Simultaneously, knowledge and compliance have an effect on K3 with a sig value of 0.000 < 0.05 and fcount 93,078 > f table 3.09. Meanwhile, the determination value is 0.751 or 75.1%, while the remaining 0.239 or 23.9% is the contribution of other variables not examined in this research.

Success Secret of Top Management Japanese Employees in PT. Toyota Motor Manufacturing Indonesia by Using Ethnography Theory

Success Secret of Top Management Japanese Employees in PT. Toyota Motor Manufacturing Indonesia by Using Ethnography Theory

Analysis of Improvements to Bank Capacitor Requirements in 20kv Voltage Distribution Network Panels for Power Plant 2 at PT. Toyota Motor Manufacturing Indonesia

This research aims to describe and analyze the effectiveness of using capacitor bank capacity in PT's power plant 2 distribution system. TMMIN. The focus is to analyze the initial design of capacitor bank requirements for each panel in the substation production line, including Painting, Assembly and Welding, to increase capacitor bank requirements according to electrical theory standards. The Power Factor calculation method is used to measure the required capacitor bank capacity. The power factor is influenced by the type of electrical load which is resistive, inductive or capacitive, with a value range between 0 and 1. A power factor close to 1 indicates high active power and better electrical power quality, while a power factor close to 0 indicates high reactive power. reducing power quality and increasing electrical energy use. The current power factor value is obtained from the actual voltage and active power conditions, and the required capacitor bank value is calculated with a target power factor of 0.9 or 0.95. According to calculations, the panels that can be repaired are panels 3, 4, 5, 6 Painting, panel 1 Assembly, and panel 1 Welding. The results show that 2 MDB panels reach ideal conditions with 6 steps of 2x50kVAR capacitor bank, while the other 6 MDB panels require an additional 2 steps of 2x50kVAR capacitor bank to achieve ideal conditions.

Investigation of shaded pole stator topology for low power AC motors design

PurposeThis paper aims to investigate the features of single phase shaded pole stator with squirrel–cage rotor or permanent magnet rotor, that leads to an investigation of these topoloties as induction motor or synchronous motor. The comparative analysis is realised for the following three topologies: single phase shaded pole induction motor (SPIM) with squirrel–cage rotor, the second topology (single phase synchronous motor) has the same stator configuration but with permanent magnet rotor and the third investigated topology is similar to the second one, where the stator poles instead of iron steel are made of soft composite material.Design/methodology/approachThe investigation in this work starts with a performance analysis of single-phase SPIM. Afterwards for the same stator topology the squirrel rotor is replaced with a two-pole permanent magnet rotor and the same performance analysis is realised for this topology. Finally, the second topology is improved bay replacing the iron steel stator poles with stator poles made of soft magnetic composite material and performance analysis is realised for this third type of topology as well. The performance analysis of all topologies is realised by implementation of finite element method and finite element analysis.FindingsThe presented data and diagrams from the realized investigation show that single phase synchronous motor with shaded pole stator has an improved characteristics in comparison with the initial single-phase SPIM. Finally, the third topology realized on the bases of the single-phase synchronous motor has the best performance characteristics due to the implementation of soft magnetic material in the realization of the stator poles. The proposed methodology for structural and performance improvement of a single-phase SPIM topology opens the possibility for additive manufacturing application and significant cost reduction.Originality/valueThe focus was put on exploration the possibilities of the single-phase shaded pole stator topology for application in low-power and low-cost single phase self-starting motors. By simple replacement of the squirrel–cage rotor, in the reference AKO-16 motor, with one-piece ferrite permanent magnet rotor, the self-starting single phase synchronous motor was derived. In the next step, owing to simplify the SPPM motor production process and manufacturing, the stator poles instead of iron steel lamination were made of soft composite material Somaloy®. It opens the possibility for additive manufacturing application and significant cost reduction.

Study on the Influences of an Outer-Coreless-Rotor Permanent Magnet Synchronous Machine Using Halbach Magnet Array

In order to evaluate the influences of the topology design of a Halbach Magnet Array (HA) on the performance of a motor, a PMSM with an outer coreless rotor using a Halbach Magnet Array (HAORPMSM) is proposed in this article. The design parameters of the HA could be separated into dividing methods per pole, magnet thickness, and initial magnetization direction angle. The phase Back-EMF under constant mechanical speed is chosen as the index to measure the performance of the motor. To start with, different dividing methods of the HA are evaluated. After that, the influence of thickness considering the utilization of the magnet is studied. Lastly, the relationship between initial magnetization direction and motor manufacturing is represented. The results show that the HA design meets the optimized performance considering the balance of the amount of magnet usage and manufacturing when using specific HA parameters.

Research on Optimization Design of Electric Motor Based on Finite Element Calculation

With the widespread application of permanent magnet synchronous motors in the new energy vehicle market, the demand for verification and optimization of the design rationality of permanent magnet synchronous motors is gradually increasing. This article first establishes a three-phase four pole permanent magnet synchronous motor model based on the motor parameters provided by the motor manufacturer. Then, finite element simulation calculations are carried out on this model to solve the three-phase induced electromotive force, three-phase magnetic flux, cogging torque, iron core loss, and eddy current loss of the permanent magnet synchronous motor when it is unloaded. The rationality of the motor design is verified through the solution results. Finally, the average core loss of the permanent magnet synchronous motor is reduced by 3.6% through parameterized simulation, and its operating efficiency is improved. The optimization design is carried out on it.

Optimalisasi Komitmen Organisasi Karyawan Bagian Produksi PT. Hino Motors Manufacturing Indonesia Kabupaten Purwakarta Melalui Pengembangan Karier dan Kepuasan Kerja

The success of such a company lies in the role of every employee who has a strong commitment to its organization, because each employee whose strong commitments mean that they are willing to engage themselves with the company is characterized by a strong level of loyalty and dedication to the company. Then, from there, the commitment should be observed by every company. Some of the factors that can make the organization's commitment strong are how the company looks at the career development and job satisfaction of each of its employees. This research aims to find out the relationship between career development and job satisfaction and the organizational commitment of employees of the Production Division at PT. Hino Motors Manufacturing Indonesia in the district of Purwakarta. The research uses quantitative approaches and nonprobability sampling. Data analysis techniques using validity tests, reliability tests, classical assumption tests, double linear regression tests, and hypothesis tests are interpreted by interpreting the output tables of the Statistical Package for Social Science (SPSS) software program version 26. The results of this research show that career development has a partial influence on employee organization commitment, and job satisfaction has a partial impact on employee organization commitment. Furthermore, career development and employment satisfaction have a simultaneous effect on the commitment of employees in the production division of PT. Hino Motors Manufacturing Indonesia, Purwakarta district. This means that the more companies pay attention to employee career development, the higher levels of employee satisfaction can further strengthen the organization's commitment.

Advances in BLDC motor control: A thorough examination of torque ripple reduction and speed regulation techniques

Applications that depend on variable speed drives have one main concern: accurate and efficient control of Brushless Direct Current (BLDC) motors. This research explores the key factors that determine the performance of BLDC motors, including torque, motor speed and flux or electromagnetic back-emf fluctuation for optimal efficiency. Although optimal circumstances need continuous torque generation in BLDC motors with trapezoidal back emf, real-world situations result in pulsing torque because of elements such as changes in the motor's manufacturing structure and design, such as slot and teeth. Because of their efficiency, dependability and precise control capabilities, BLDC motors have acquired appeal across a wide range of applications. They are inherently prone to torque ripple and need sophisticated speed management for maximum performance. Torque ripple in BLDC motors is caused by the interaction of the rotor's permanent magnets with the stator's ferromagnetic teeth, which varies in strength throughout the magnetic field and causes unpredictable torque variations. This torque ripple can have a negative impact on speed-torque characteristics, causing noise, vibrations and probable problems in sensorless drives. This study provides a thorough examination of several approaches for decreasing torque ripple. The analysis demonstrates that torque ripple in BLDC motors can be reduced by boosting the input voltage during commutation, magnifying it fourfold compared to the back emf. In addition, the research examines alternative approaches for increasing input voltages throughout the commutation time. These discoveries contribute to the progress of BLDC motor control approaches, allowing for smoother operation and greater performance in a variety of applications.

Rotor fault characterization study by considering normalization analysis, feature extraction, and a multi-class classifier

Background. Rotor faults are the most common malfunctions encountered, especially during the manufacturing stage, in asynchronous motors. These faults cause vibration in the motor torque and a decrease in efficiency. In recent years, the detection of rotor faults has been done using motor current. The reflection of rotor faults on motor current depends on slip, and therefore, the effect increases as the current grows. Good results are achieved in fault detection at nominal loads. However, especially when motor manufacturers are considered, testing the motor by loading it requires expensive testing equipment and long-term test procedures. Therefore, the detection of faults in the motor at no load is emphasized. However, since the effect of the fault decreases when the motor is at no load, fault detection becomes difficult. Generally, small-level faults cannot be detected. Objective. This study focuses on fault detection from the motor current at no load. The development current at no load was used to eliminate the negative effects of slip. However, since the slip is not constant, the change in frequency and amplitude values to be used as a feature makes the diagnosis difficult. Method. In this study, the spectrogram was used to evaluate the change during the start-up time. Thus, a standard dataset was determined for comparison. The texture properties of the spectrogram image were extracted using various methods. The extracted features were subjected to normalization analysis and classified using the k-NN algorithm. Results. In the classification phase, a classification accuracy of 98.66% was achieved using the k-NN method, and it was seen that the proposed method could be used for the detection of rotor faults. Conclusions. The study has successfully demonstrated that broken rotor bar faults in asynchronous motors can be diagnosed using the motor start-up data.

Selective neodymium oxide recovery from permanent magnet scraps using waste pickling solutions

Neodymium (Nd) magnets are in high demand for use in the manufacture of electric vehicle motors and medical equipment such as magnetic resonance imaging. In this study, we describe a new process for recycling Nd permanent magnets (PMs). PM scrap powder was leached into a waste pickling solution, evaporated under reduced pressure, concentrated, and converted into an oxide via heat treatment. Nd was selectively leached from the prepared oxide using hydrochloric acid. Iron was removed from the leached solution, and the Nd composite was then recovered using a urea-mediated Nd-recovery method. The oxidation temperature was determined using a thermogravimetric analysis. High-purity Nd-oxide powders were obtained by calcination at 900 °C. This economical process enables the recovery of PM powder by relying on the pickling process and acid-regeneration plants, which are both essential in steel manufacturing.

ANALYSIS OF THE COOPERATIVE LOTKA-VOLTERRA MODEL IN THE CASE OF TWO AUTOMOTIVE INDUSTRIES IN INDONESIA

The automotive industry sector is one of the main sectors contributing to the national economy. Companies in the automotive industry work together to increase productivity and win the market competition. This research aims to construct the cooperative interaction between two companies into the cooperative Lotka-Volterra model. The cooperative Lotka-Volterra model was analyzed for stability at the equilibrium point and bifurcation analysis was performed. Sales data for the Calya 1.2 G product from PT Toyota Motor Manufacturing Indonesia and sales data for the New Sigra 1.2 R MT product from PT Astra Daihatsu Motor are applied to the model. The results of the study show that there is a model that explains the cooperative interaction of the two companies, namely the cooperative Lotka-Volterra model. Four equilibrium points are obtained with three equilibrium points being unstable and the fourth equilibrium point being stable with conditions. The Hopf bifurcation analysis of the model shows that there are no parameters that cause a change in stability from initially stable to unstable. The data simulation shows that the cooperation of the two companies is mutually beneficial because it increases the number of sales and creates balanced market conditions.

In Search of the Proper Dimensions of the Optimum In-Wheel Permanent Magnet Synchronous Motor Design

In this paper, a new approach to the optimized design of outer rotor Permanent Magnet Synchronous Motors (PMSMs) for in-wheel light electric vehicle (LEV) applications is presented. The optimized design study is based on various dimensions such as back iron depth, permanent magnet depth and air gap length. The novel method is developed to reveal the quality factor of design (QFD), which implies the maximum possible performance results, and determine the best possible design for in-wheel PMSMs for direct-drive LEV applications. Therefore, the thickness of the back iron, permanent magnet and air gap dimensions are altered accordingly to obtain an optimized design. This design study is conducted for an in-wheel PMSM that has rated values of 2.5 kW, 150 V, 900 min−1, and 24-slot/20-pole configuration intended for LEV propulsion. These designs are simulated in order to obtain the maximized combination of efficiency, shaft power, shaft torque and a minimized combination of total weight, iron losses, copper losses, input current and cogging torque. The measure of the optimized parameters is named QFD, which indicates the goodness of the design through the use of radar charts. The values of the essential coefficients of QFD may vary for different applications, e.g., the design of PMSMs used in traction applications has some certain criteria that imply high-performance operation. Additionally, the QFD can guide motor manufacturers as a starting point for a design study.

RPM MEASUREMENT COMPARISON USING A THERMOMETER AND LM393 MICROCONTROLLER

RPM measurement is a crucial measurement tool for assessing a machine's rotation quality and ensuring that it meets the DC motor manufacturer's specifications. The quality of rotation of electric motors and combustion motors can both be observed through RPM measurements. The precision with which the LM393 sensor measures the rotation of a DC motor engine is the problem formulation in this study. Thus, the purpose of this study is to evaluate the rotation measurement accuracy of the LM393 Microcontroller sensor and compare it to a traditional tachometer. In order to conduct rotational variations on the DC motor, the following voltages will be applied: 0.93V, 2.83V, 4.25V, 7.05V, and 9.07V. Next, a tachometer and an LM393 microcontroller are used to measure the DC motor rotation. The gathered data will be made available for verification. Based on the measurement results, the corresponding data differences are -5.560 RPM, -1.577 RPM, -2.182 RPM, -3 RPM, and 0.334 RPM. Therefore, measurement validation was done based on the disparity in readings, yielding results of 0.252%, -1.45%, 0.12%, 0.038%, and 0.0725%. Based on validation results showing a presentation of no more than 10%, the LM393 measuring tool for DC motor RPM measurement is deemed valid and suitable for use.

Electromagnetic Characterization of Silicon–Iron Additively Manufactured Cores for Electric Machines

This paper deals with the electromagnetic characterization of a laminated toroidal ferromagnetic core made through additive manufacturing, specifically using the laser powder bed fusion process. The continuing demand for increasingly efficient, lightweight, and higher performance electric machines is creating huge challenges in the design and realization of new electric motor solutions. The constant improvements in additive manufacturing technologies have prompted researchers to investigate the possibility of adopting these production techniques for the manufacture of high-value electric motors. For these reasons, this paper investigates the ferromagnetic characteristics of an additively manufactured core made with FeSi6.5 powder. The BH curve and the specific iron losses of the processed material have been measured so that they can be compared with a commercial lamination, and have the possibility of carrying out more precise finite element simulations.

Выбор задаваемых параметров для оценки соответствия восстановленных погружных электродвигателей требованиям на капитальный ремонт

The main characteristic of the performance of submersible electric motors after overhauls is their reliability. To assess the compliance of reliability indicators of restored submersible electric motors with technical requirements for overhauls, various types of tests are used. The most acceptable of them is the bench test method based on a sequential failure analysis of the studied electric motors. To implement it, the specified parameters should be set. In this study, based on the use of technical requirements for the manufacture and repair of submersible electric motors, the authors determined the specified average operating times for failure of new electric motors (before the first overhaul) and after it. Bench tests were carried out for two batches of submersible electric motors: overhauled and non-overhauled. In each batch, 20 electric motors were studied. The experiment determined the standard deviation of the mean time between failures (MTBF) of new electric motors, which amounted to 3.54 thousand hours, after the overhaul - 2.37 thousand hours. The coefficients of variation were 0.3 and 0.34, respectively. The study results determined the values of the set parameters of the mathematical model, enabling the use of the method of successive failure analysis. The values included the set average MTBF before the first overhaul - 16 thousand hours; the set average MTBF after the overhaul - 12.8 thousand hours; the risks of the repair provider and the customer - 0.05; the set mean square deviation of the MTBF of electric motors before the first overhaul - 4.8 thousand hours; the set mean square deviation of the MTBF after the first overhaul - 4.8 thousand hours; the set mean square deviation of the MTBF after the overhaul - 2.37 thousand hours.

Evaluation of Mechanical Properties Considering Uncertainties for Hairpin Coils in Electric Vehicle Motor Manufacturing

Evaluation of Mechanical Properties Considering Uncertainties for Hairpin Coils in Electric Vehicle Motor Manufacturing

The Supply Chain Advantages and Challenges of BYD in the New Energy Vehicle Industry: Implications for the Future

The new energy vehicle supply chain is evolving rapidly to meet growing market demand, and innovations in battery technology, motor manufacturing, and charging infrastructure, among others, are driving progress in this sector. This paper explores the supply chain strengths of BYD, a major new energy vehicle manufacturer in Chinas automobile manufacturing industry, and related issues. Through an in-depth analysis of BYDs history, the companys current status, and its innovative initiatives in the supply chain, the paper identifies its supply chain strengths in intelligence, sustainability, and innovation. However, some of the challenges BYDs supply chain faces, such as delivery issues, data security risks and low collaboration with suppliers, are also raised. Finally, the paper offers some recommendations, including actively collaborating with high-quality suppliers, strengthening data processing and management capabilities, and adhering to supply chain innovation. These recommendations can guide BYDs development and provide useful references for peer companies supply chain optimization.

Strategic Minerals for Climate Change and the Energy Transition: The Mining Contribution of Colombia

To transition to carbon neutrality by the year 2050, copper, lithium, rare earths, cobalt, nickel, and silver are essential due to their use in the manufacture of electric cars, lithium batteries, wind turbines, solar panels, motors, and electrical wiring. The main goal of this study is to carry out a mining approach of the prospective areas of Colombia with strategic minerals for energy transition and climate change, analyzing the geospatial location, mining rights, mineral extraction, and royalty collection. Open data from SGC, ANM, and SIMCO geoportals were consulted. The prospective areas totaled 311,535.2 km2, equivalent to 27.3% of Colombia, and were located mainly in the Andes Mountains. The total area of mining rights and applications with strategic minerals for the energy transition is 112,802.2 km2 or 9.9% of Colombia, representing 5731 rights and 3939 applications. From 2012 to 2023, 448,330 tons of nickel, 172.9 tons of silver, and 171.6 tons of copper were mined in Colombia, which has contributed USD 513,140,286 as royalties to the state. No royalties have been earned from the extraction of rare earths, lithium, or cobalt. Fulfilling the Paris Agreement is possible with new sustainable mining projects of strategic minerals.

Davlumbazlarda Kullanılan 1 fazlı Asenkron Motorun Tedarikçi Seçiminin Bulanık TOPSIS Yöntemiyle Belirlenmesi

Hoods are the most important devices used in our kitchens that contribute to the ventilation of the environment. 95% of the electric motors used in hoods are single-phase asynchronous motors. There are many domestic and foreign electric motor manufacturers producing for the hood industry. Supplier selection in companies producing hoods is vital and critical for sustainable production. It is extremely important to make the right decision in the purchasing process of the supplied products. While the decisions taken can sometimes be clearly separated from each other, sometimes they can be intertwined and interconnected. Multi criteria decision making techniques are used when making decisions that cannot be clearly separated or explained with numerical data. The aim of this study was to determine the most suitable Supplier for the built-in appliance company operating in the Turkiye/Amasya region by using fuzzyTOPSIS method in the supply of 1-phase asynchronous motors used in hoods. After 5 experts working in the company were determined as decision makers, 4 criteria were determined: quality, system capacity, finance and logistics performance. The best supplier selection among 6 different suppliers was made using this method. For the first time, a solution proposal was presented with the fuzzyTOPSIS technique for the 1-phase induction motor supplier selection and a contribution was made to the literature.

Comparative Study of Car Seat Sales During and Before the 0% PPNBM Policy During the Covid-19 Pandemic at PT X

This research aims to find out the sales of car seats during the 0% PPnBM policy for the period March to December 2021 and to find out the sales of car seats before the 0% PPnBM policy for the period March to December 2020 and to find out the comparison of sales from of PT. when PPnBM was 0% for the period March to December 2021 and before the PPnBM policy was 0% for the period March to December 2020 at PT. Toyota Motor Manufacturing Indonesia. This research method uses documentation techniques in data collection. In documentation techniques, documents are records of past events, which can be in the form of writing, drawings or works. The data used by the author in this research is seat sales data (documentation) which data was obtained from the logistics division regarding car seat sales at PT. X. And using validity tests and descriptive statistics. The results of data processing obtained in a descriptive statistical manner are that there was a very good increase in sales of car seats when the PPnBM policy was 0% and the results of hypothesis testing using the t-difference test were that there was a significant difference in sales when the PPnBM policy was 0%. So it can be concluded that there is an average difference between car seat sales when PPnBM was 0% and car seat sales before PPnBM was 0%, which means there was an increase in car seat sales when the PPnBM policy was 0%.