Repair Shop Research Articles

Pengaruh Promosi dan Citra Merek Terhadap Keputusan Pembelian pada Bengkel Mobil Garasi-In

The purpose of the study was to determine the extent to which the promotion and brand image of the car repair shop influence purchasing decisions. The study used a quantitative method by distributing questionnaires to 97 respondents via Google Form. Data includes instrument analysis to assess validity and reliability, classical assumption tests such as normality tests, heteroscedasticity tests, and multicollinearity tests, hypothesis tests such as t-tests and F-tests, multiple linear regression analysis, and calculating the coefficient of determination. This provides results that promotion and brand image have a significant influence on purchasing decisions. Producing a contribution value of promotion variables and brand image variables to purchasing decisions of 68.8% to purchasing decisions..

P-Phenylenediamines and p-phenylenediamine quinone derivatives in rubber consumer products and typical urban dust: Sources, transformation profiles, and health risks

N,N′-Substituted p-phenylenediamines (PPDs) are widely used as antioxidants in the rubber industry and are released into the environment in large quantities during the production and use of rubber products. We quantified PPDs and PPD quinone derivatives (PPD-Qs) in rubber consumer products, including car tires, rubber belts, rubber gloves, rubber cables, and rubber hoses, to obtain information on the degree of weathering over time during their use. Additionally, we investigated the occurrences and sources of PPDs and PPD-Qs in dust samples collected from four typical urban environments (roads, parking lots, automotive repair shops, and residences). The detected compounds included the highly toxic N-(1,3-dimethylbutyl)-N′-phenyl-1,4-phenylenediamine quinone, which can cause acute mortality of coho salmon (Oncorhynchus kisutch). Concentrations of PPDs in the automotive repair shops reached 56.0 μg/g, and were much higher than in the other environments, while the residential samples had the lowest contaminant concentrations. In road and residential samples, N,N′-di-2-naphthyl-p-phenylenediamine accounted for 17 %–30 % of the PPDs, and may have originated from different sources. We preliminarily identified 32 transformation products, and 11 of these were N,N′-di-2-naphthyl-p-phenylenediamine transformation products. The average daily intakes of PPDs and PPD-Qs were calculated to assess the health risks of dust exposure in each environment. Workers had high total intakes of PPD [60.3 ng/(kg day)] and PPD-Qs [20.1 ng/(kg day)], and were at some risk of occupational exposure. These results improve our understanding of the environmental occurrences, sources, transformation, and health risks of PPDs and PPD-Qs.

PENGARUH ORIENTASI PELANGGAN, KEPUASAN PELANGGAN YANG DIMEDIASI OLEH KUALITAS LAYANAN TERHADAP KEPUASAN PELANGGAN

Competition in the service industry encourages companies to improve customer orientation and service quality in order to achieve customer satisfaction and loyalty. This study aims to analyse the relationship between customer orientation, service quality, customer satisfaction, and customer loyalty at Honda repair shops in Tangerang. Using a quantitative approach, this study involved 100 Honda repair shop customer respondents. Data was collected through an online questionnaire and analysed using Structural Equation Modeling (SEM). The results state that customer orientation has a positive effect with service quality and customer satisfaction, service quality affects customer satisfaction, service quality mediates the relationship between customer orientation and customer satisfaction, and customer satisfaction has a positive effect on customer loyalty. This research has a contribution to the Honda Workshop by making customer loyalty a final strategy of the Honda Workshop. It is recommended that Honda workshops improve customer orientation and service quality to increase customer satisfaction and loyalty. Research limitations include a relatively small sample size and limited geographic coverage, opening up opportunities for further research on a larger scale.

Repositioning of an Engineering Works Complex as an Industrial Hub for Spare Parts and Components Production

Ajaokuta Steel Company Limited (ASCL) comprises several units, including the Engineering Works Complex, which is one of the key auxiliary units of the steel plant. This complex is equipped with the necessary tools and machinery for producing fixtures and spare parts that meet a wide range of requirements. These machines are operated by welltrained engineers, skilled technicians, and artisans. The complex is designed to carry out repairs on equipment across the entire steel plant, as well as to manufacture spare parts for external agencies. Additionally, facilities are available for training technicians and artisans. The Engineering Works Complex consists of five major workshops: the Machine and Tools Shop, Forge and Fabrication Shops, Foundry and Pattern Making Shops, Power Equipment and Repair Shops, and the Rubberizing Shop. It is fully equipped to meet the industrial demand for spares and consumables, and it has the capacity to serve as a research institution where modern research can be conducted. This research aims to explore the potential of repositioning the Engineering Works Complex at Ajaokuta Steel Company as a leading industrial hub for the production of spare parts and components in Nigeria. The study will analyze the potential economic benefits of this repositioning, such as increased employment opportunities, higher productivity, and greater contributions to the national economy. By drawing on case studies from other countries that have successfully developed their engineering sectors, the research will provide insights and lessons that can be applied to the Nigerian context. The Engineering Works Complex is actively utilizing the government's local content policy to achieve these goals. With the necessary attention, including adequate funding for the various shops within the complex, it could generate significant revenue and create employment opportunities in downstream industries, ultimately contributing to the industrialization of local communities and the country at large.

Assessment of Coating Properties in Car Body by Ultrasonic Method

Adhesive bonds, including car putty coatings, are used in the construction of modern motor vehicles. Therefore, it is important to improve methods that allow nondestructive evaluation of the properties of these joints. The main objective of this study was to evaluate selected properties of putty coatings such as the width of the applied coating and adhesion to the substrate based on changes in ultrasonic wave parameters. The research was carried out in two stages. In the first, the values of the surface wave amplitude were determined as a function of the width of the coating to the substrate. It was found that as the width of the coating increases, the amplitude of the surface wave pulse decreases. The second stage involved correlation studies to relate the reflection coefficient |r| to the adhesion of the coating to the substrate. Based on the results, it was found that as the value of the reflection coefficient decreases, the value of the coating’s adhesion to the substrate increases. The determined values of this parameter range from 0.30 to 0.86, which correspond to the adhesion of the range 1.51 to 18.97 MPa. The obtained test results have practical significance and can be used in evaluating the condition of coatings in vehicle body repair shops.

Pengaruh Kompetensi dan Kreativitas Montir Terhadap Keunggulan Bersaing pada Pelaku Usaha Bengkel Motor Kec. Cikarang Timur

This research investigates the influence of mechanic competency and creativity on competitive advantage in motorbike repair shops in East Cikarang District. The method of research applies a quantitative descriptive approach. The data collection method in this research is the questionnaire and Likert scale. In this study, the population was 50 motorbike repair shop business actors in East Cikarang. The sampling technique in this study used a saturated sampling technique where all population members became research subjects in data analysis. Multiple linear regression analysis techniques with a significance level of 0.05. Comprehensive analysis calculations using the SPSS version 27 program. The results of the research reveal that (1) partial competence has a significant positive effect on competitive advantage in East Cikarang motorbike repair shop business actors, (2) partial creativity has a significant positive impact on competitive advantage in repair shop business actors motorbikes in East Cikarang District, (3) simultaneously the competency and creativity of mechanics have a significant positive effect on the competitive advantage of motorbike repair shops in East Cikarang District. Motorbike repair business operators must develop the competency and creativity of existing mechanics to increase their competitive advantage.

Unlocking Potential: Digital Transformation and Decision Support in Automotive Repair - A Case Study

In today's rapidly evolving business landscape, the significance of digital transformation for Small and Medium-sized Enterprises (SMEs) cannot be overstated. CV Karya Makmur, an Indonesian automotive repair shop, stands at the forefront of this change, recognizing the urgent need to incorporate advanced Information and Communication Technologies (ICTs) into its operations. This transformation is not just about adopting new technologies; it is a comprehensive shift that redefines how the business interacts with customers, optimizes operational processes and improves its overall financial health. The journey of CV Karya Makmur highlights the broader implications of digital transformation in this sector. This case study delves into the multifaceted process of integrating technologies such as augmented reality (AR) and artificial intelligence (AI) to enhance service efficiency, tackle logistical hurdles, and improve access to vital information. Yet, the transition from conventional practices to a digital framework is fraught with obstacles, primarily due to resistance to change. Effective change management, focusing on the human elements of organizational transformation and employee engagement, is pivotal. CV Karya Makmur's experience underscores the critical need for digital systems that promote data-driven decisions, standardize operations, and facilitate better communication. Despite the initial challenges, the potential benefits—increased productivity, reduced operational costs, and a competitive edge in the market—are compelling. This study suggests that considering an organization's unique context and objectives, a tailored digital transformation strategy is essential for leveraging technology to enhance business outcomes in developing countries like Indonesia.

Cobalt recovery from spent lithium-ion batteries using a rotating cylindrical electrode reactor

Abstract The cobalt electrodeposition from a leaching containing cathode-powdery of spent laptop lithium-ion batteries (LIBs) of different commercial brands, collected from local laptop repair shops, was investigated. Citric acid (0.14 M) and hydrazine (0.1 M) were employed as complexing and reducing agents in the leaching during 24 h. Cobalt, manganese and nickel concentrations in the leachate, obtained by the flame method in an atomic absorption spectrometer, are reported. A rotating cylindrical electrode reactor which consists of a rotating open bottom as cathode and a static outer cylindrical as anode was employed. The numerical flow patterns and cathode velocities that induce the presence of Taylor vortices inside and/or outside the cathode were investigated. RANS equations with the standard k−ε turbulence model and enhanced wall treatment was used. Electrical power measurements were performed to validate simulations. Cyclic voltammetry experiments with synthetic solutions were applied to determine the reduction potential of cobalt (found in −1.2 V vs SCE). Subsequently, electrolysis experiments were carried out at predetermined cathode speeds (50, 75, and 125 rpm), imposing a working cathodic potential of −1.2 V versus SCE during 12 h. Experimental results indicate that the best cobalt recovery rates and current efficiency coincide with the presence of Taylor vortices both inside and outside the cathode, i.e., at 50 rpm. The peak performance in cobalt recovery and current efficiency was recorded at 49 % and 47.3 %, respectively. Finally, the deposits obtained from each electrolysis test were removed from the cathode and analyzed via energy dispersive spectroscopy. The range of purity of Co obtained in the electrodeposit film were between 56.75 % and 74.8 %.

Dynamic production capacity assessment of aircraft overhaul shop based on digital twin

Aircraft overhaul is of the highest level in aircraft MRO (Maintenance, Repair, Overhaul), which is an important and necessary activity for ensuring safety and reliability of aircraft throughout its whole lifecycle. Production capacity of aircraft overhaul shop has huge strategic value and determines the cycle time and throughput of the overhauled aircraft. However, due to the inherent complexity and stochasticity, aircraft overhaul tasks are generally executed manually by skilled workers, whose stochastic task execution time (TET) makes it challenging to assess the production capacity of aircraft overhaul shop. Digital twin provides an up-to-date technical measure to simulate, evaluate, and predict the whole lifecycle process of its physical entity, which makes it possible to tackle the complexity and stochasticity of aircraft overhaul process. This paper proposes to apply digital twin to assess the production capacity of aircraft overhaul shop dynamically. Firstly, the aircraft overhaul process and its dynamic production capacity assessment are analyzed. A modeling framework of aircraft overhaul shop digital twin is proposed with a novel twin fusion mechanism. Then, an improved kernel density estimation (KDE) method and a quota hour density proportion (QHDP) method are proposed and verified to process stochastic TET for production capacity assessment. Finally, the digital twin of a typical aircraft avionics repair shop is constructed to assess its production capacity. Four assessment results are compared with real observations from the aircraft avionics repair shop, which verifies the feasibility and advantage of the proposed methodology. A bottleneck analysis is also conducted to optimize the production capacity, which provides managerial insights.

Electric Motorbike Conversion Training to Reduce Pollution and Create A Friendly Environment For Society

Electric motorbike conversion training at Vocational High Schools (SMK) and motorbike workshops in Kotabumi, North Lampung, is a strategic step to prepare future workers to face the electricity-based transportation revolution. This study aims to evaluate the impact of training on improving the technical skills of vocational school students and motorbike repair shop mechanics, as well as analyzing the contribution of training to the adoption of environmentally friendly technology at the local level. The training method includes theoretical exposure, field practice sessions, and case studies to provide an in-depth understanding of electric motor conversion. Evaluation is carried out through practical exams and collecting feedback from participants and instructors. The research results showed a significant increase in participants' knowledge and skills regarding electric motor conversion. Adoption of this technology in local motorbike workshops is also increasing, creating the potential for reduced environmental impact and generating positive effects on the local automotive industry. The conclusion confirms that this training was successful in empowering vocational school students and motorbike repair mechanics, creating new career opportunities, and stimulating economic growth in the region. However, challenges such as adapting infrastructure and changing mindsets were also identified as areas requiring further attention. Therefore, this research provides valuable insights for further development in supporting technical education, industrial innovation and sustainability at the local level.

Analisis Kelayakan Usaha Bengkel Sepeda Motor di Kecamatan Wonocolo Kota Surabaya

This research aims to analyze the feasibility level of a motorbike repair shop business in Wonocolo subdistrict, Surabaya city. This research data analysis uses the method of calculating fixed costs, variable costs, total costs, revenues, income and business feasibility. In this research, the analysis used is B/C, R/C and ROI. The results of the research show that the average total cost for 6 informants who own a motorbike repair shop is IDR38,971,456/month, the revenue obtained is an average of IDR100,575,500/month and the average income is IDR 61,604,043/month. Calculation of business feasibility using the b/c ratio obtained an average result of 1.60%, the average r/c ratio calculation was 2.60% and the average ROI calculation was 118.667%. The results of these calculations state that the motorbike repair shop business in Wonocolo subdistrict, Surabaya city is feasible to run and develop.

Perancangan prototype UI/UX aplikasi home service kendaraan berbasis mobile dengan pendekatan Design Thinking

Vehicle repair services require most customers to spend extra time visiting a repair shop. Customers generally also have to wait in line for a very long time, so that service becomes less effective and efficient. This research aims to design a UI/UX prototype of the mobile-based Hi Service application so that it is hoped that it can make it easier to manage call services or home service for vehicle repairs by directly visiting the customer's home. The research method used is the Design Thinking approach which has five process stages in meeting user needs. UI/UX prototype testing is carried out using usability testing with a System Usability Scale (SUS) assessment. The research results show that the Hi Service application prototype test received a score of 82 and was included in the excellent category or rate. The study shows that the Design Thinking approach to the prototype created is able to meet user needs. Apart from that, testing the prototype through usability testing with SUS assessment showed a positive impact on the user experience when running the UI/UX prototype of the Hi Service application.

Pelatihan Singkat Servis Motor Bagi Siswa SMA Islam As Saadah Setu Tangerang Selatan

Motorized vehicles, especially motorbikes, have now become daily necessities, no longer classified as luxury goods. Due to the high level of need, almost every family has one motorbike, maybe even more than one. Motor vehicles are simple forms of transportation, can be driven in residential areas, both urban and rural, and the operational costs are relatively affordable for most groups. Current developments in motorbike design allow riders from young to old. Data shows that demand and use of motorbikes continues to increase. According to the Central Statistics Agency (BPS), in 2022 the number of vehicles in Indonesia will reach 148,212,865. The number of private vehicles in Indonesia is still dominated by motorbikes with a figure of 125,267,349 units (almost 85% of which are dominated by motorbikes). With the rapid increase in the number of motorized vehicles, many workshops and repairs have emerged, both large and small, official and unofficial workshops. The problems that arise are due to busyness, laziness or lack of knowledge and skills, so motorbike servicing is carried out at a repair shop. Especially for young people and students, who only like riding motorbikes, don't care about the condition of the motorbike, and don't learn how to service it even to repair minor damage. This will benefit the workshop. In fact, you should be able to save money if you can repair it yourself. It can even be detrimental if it is serviced by an irresponsible illegal workshop. From the results of surveys and observations at the Assa'adah Islamic Boarding School, South Tangerang, almost all students are unable to service their motorbikes themselves. Therefore, the team of Mechanical Engineering Lecturers at Pamulang University offers motorbike service training for students with the aim of giving them knowledge and skills in servicing motorbikes. Armed with this knowledge and skills, it is hoped that motorbike maintenance and if damage occurs, you can do it yourself, you don't need to take it to a repair shop. At least with this knowledge and skills, you can save financial expenses, and even the knowledge and skills obtained can become provisions for opening a motorbike service business in the future. The training offered is packaged in the form of Community Service (PKM) as one of the elements of the Tridharma of Higher Education. A short training method will be given in theory about motorbike service and maintenance, and practical motorbike service and maintenance will be carried out.

A New Approach for Multi-View Models’ Composition using Probes Event

The paper presents the development and application of the VUML Probe profile, an extension of the VUML (View-based UML) approach to modeling complex software systems. It focuses on improving behavioral modeling by introducing probes for observing and monitoring events. In the introduction, the importance of separation of concerns in the management of large software systems is emphasized, with the introduction of view-based modeling and the VUML profile. The application context section presents the VUML analysis and design process, illustrated by a case study of managing an automotive repair shop. Probes are introduced as a modeling concept for event detection and control, with basic categories and methods for projection, derivation, and composition. The VUML Probe profile is presented, integrating probe stereotypes into the VUML meta-model, with conformance rules to maintain semantic consistency. The application of probes in the VUML process is demonstrated, in particular, to ensure the autonomous evolution of model-views. Abstract probes are defined during the composition phase, and then used in view models. Finally, related work and avenues for future research are discussed, including language enhancements, integration with aspect-oriented modeling, and tool development. In summary, the paper offers a comprehensive framework for integrating event observation mechanisms into the VUML approach, aimed at improving the modeling and management of complex software systems.

Analysis and Design of Customer Service Information Systems at Bersaudara Car Repair Shop Of Pangkalpinang

Bersaudara Car Repair Shop of Pangkalpinang is a business that operates in the field of automotive services, specializing in car maintenance and repair. Currently, customer service data processing still uses a manual system with Microsoft Office tools. In its application, this application cannot support fast and easy work. This can have implications for service providers towards customers, because they often encounter obstacles in the process of handling repairs and making reports. The aim of this research is to provide a solution in forming a needs analysis and documented information system design which will be developed into an information system application at the brothers' car repair shop. Based on the SDLC (Software Development Life Cycle) concept, the initial thing needed to produce an information system is to create a needs analysis and documented system design. The system analysis and design carried out here goes through the stages of data collection, carrying out analysis using the PIECES (Performance, Information, Economic, Control, Efficiency, Service) framework and carrying out system design using an object-oriented approach using UML (Unified Modeling Language) notation. The results of the analysis and design were tested in the form of a design evaluation using the consistency analysis method which was proven to have a consistent percentage value of 100%. The results of this design are included in the correctness category which proves that the system requirements and system design are consistent and correct.

Vehicle Maintenance System using Python

Owners of vehicles can avoid unforeseen car problems by maintaining their vehicles regularly. Early detection of vehicle concerns is crucial to preventing them from developing into serious difficulties. Owners of vehicles frequently inquire about service at auto shops. Vehicle technicians examine crucial parts of the vehicle and fix problems to make sure they are in good condition and won't break down suddenly. The study was carried out by the researchers to evaluate the everyday activities and transactions carried out in auto repair facilities. The researchers gathered preliminary data and discovered that the majority of auto repair companies or garages still handle their daily transactions manually. Customer records are still entered manually, as are transactions with clients, tracking of vehicle repairs as they are made, updates on vehicle services, and billing. The functioning of the garage and the response time to client inquiries will be slowed by the ongoing usage of manual procedures. The researchers have identified a need to modernize how auto repair shops work. Customers and car garages will both profit from the system's installation. Utilizing the technology to run the company will help car garages expand and improve operational efficiency. Customers may do business for car service easily and comfortably

A screening method for plastic-degrading fungi

The growing amount of plastic waste requires new ways of disposal or recycling. Research into the biodegradation of recalcitrant plastic polymers is gathering pace. Despite some progress, these efforts have not yet led to technologically and economically viable applications. In this study, we show that respirometric screening of environmental fungal isolates in combination with scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and Raman spectroscopy can be used to identify new strains with the potential for the degradation of plastic polymers. We screened 146 fungal strains, 71 isolated from car repair shops, an environment rich in long-chain hydrocarbons, and 75 isolated from hypersaline water capable of growing at high concentrations of NaCl. When grown in a minimal medium with no carbon source, some strains produced significantly more CO2 when a pure plastic polymer was added to the medium, some only at high salinity. A selection of these strains was shown by FTIR and Raman spectroscopy to alter the properties of plastic polymers: Cladosporium sp. EXF-13502 on polyamide, Rhodotorula dairenensis EXF-13500 on polypropylene, Rhodotorula sp. EXF-10630 on low-density polyethylene and Wickerhamomyces anomalus EXF-6848 on polyethylene terephthalate. Respirometry in combination with specific spectroscopic methods is an efficient method for screening microorganisms capable of at least partial plastic degradation and can be used to expand the repertoire of potential plastic degraders. This is of particular importance as our results also show that individual strains are only active against certain polymers and under certain conditions. Therefore, efficient biodegradation of plastics is likely to depend on a collection of specialized microorganisms rather than a single universal plastic degrader.

THE INFLUENCE OF PROMOTION, PRICE AND PRODUCT QUALITY ON THE PURCHASE DECISION OF HONDA MOTOR PARTS (CASE STUDY IN AHASS HONDA INTI MOTOR DEPOK)

Ahass Honda Inti Motor is a company engaged in the motorcycle repair shop (spare parts service, spare parts and others). This dealership was built to be a solution to the many motorcycle dealers around Depok that have not been officially standardized. but according to the comparison and consideration for consumers. However, this dealer has several problems, such as consumers around Depok who prefer to service at unofficial dealers, even though in terms of spare parts security, it is the official dealer who has a better level of security. The variables used in this research study are Promotion (X1), Price (X2) and Product Quality (X3) and indicators of customer satisfaction are the main things studied. This research has a quantitative type and the data is processed using Rank Spearman. A total of 52 people were respondents in this research study. The research findings state that the effect of promotion on purchasing decisions is due to the rcount results being more than rtable. And there is a price effect on purchasing decisions because rcount is greater than rtable. There is a Quality Effect on Purchasing Decisions because the rcount value is more than the rtable. Key Words: Promotion, Price, Product Quality and Purchasing Decision

ПРОГРАМНЕ ЗАБЕЗПЕЧЕННЯ ПРОЄКТУВАННЯ ДЕТАЛЕЙ АВТОМОБІЛІВ

The informative and programmatic providing of processes of проєктування details of cars is the application of computer-aided design considered on an example for automation of works of industrial enterprise on the stages of designer and technological preproduction of SolidWorks and her addition of SolidWorks Simulation for possibility of replacement of expensive and scarce steel of 18HGT for making of cog-wheel of billow of back bridge of car UAZ-31512 on more cheap and more accessible in repair shops steel 45. After reassignmentof material to the cog-wheel of billow conducted her fixing and appendix of loading. Conducted dividing of model of cog-wheel of billow the repeated calculations into eventual elements; resulting forces and moments defined; built the matrix of inflexibility, carried out the synthesis of certainly-element model taking into account the terms of her fixing in key points and untied the got system of equalizations of algebra; components of the stress-deformation state of model defined.

Innovative Work Order Planning with Process Optimization Using Computer Simulation in the Automotive Industry, in the Case of Repair Workshops

This article introduces a novel approach to enhance the efficiency of work schedule management in automotive repair shops during the planning phase, leveraging computer simulation techniques. The primary focus of this study is the optimization of the scheduling process, specifically the sequencing of car repairs, aimed at minimizing the average repair time. The proposed simulation model harnesses the power of the FlexSim simulation environment, incorporating an embedded optimization module. The article outlines the fundamental stages involved in constructing the simulation model, encompassing essential input data and information. Furthermore, the article presents empirical results demonstrating the significant impact of various simulation scenarios on resource utilization, production costs, and process duration.