Automotive Mechanics Research Articles

How do pedagogic causal mechanisms in vocational education work?

ABSTRACT This study introduces Pedagogic Causal Mechanisms (PCMs) in vocational education as a way to analyse and improve teaching and learning. PCMs are specific processes that directly connect educational inputs to learning outcomes. This paper uses an automotive mechanics lesson in Eswatini to show how PCMs work, focusing on Variation Theory as an example that creates an ‘Ah ha moment’ for students. Variation Theory demonstrates PCMs by highlighting key features through simple contrasts while keeping other elements constant. The research first describes the lesson in detail, then uses broader theories of vocational pedagogy to analyse it. It then introduces causal mechanisms as a concept, before defining PCMs more specifically. After explaining PCMs, the study shows how they provide particularly useful educational explanations, enhance professional judgement, and work with other PCMs to build situation-specific causality plans.

DFA Analysis Revolutionizes FSAE Steering, Enhancing Efficiency in Automotive Design

In the dynamic realm of automotive engineering, particularly in Formula Society of Automotive Engineers (FSAE) racing, where vehicle assessment is based on efficiency, motor power, chassis dynamics, and steering, there exists a notable focus on steering system design. This research delves into the conceptualization and component development aimed at aiding automotive mechanics in crafting steering systems for FSAE race cars. Employing Solid Edge 2021 software, the study utilizes the Design of Assembly (DFA) analysis method to streamline the mechanical process. Through DFA analysis, the study assesses various Technical Attributes (TAs) of the steering system, revealing values ranging from 0.548 to 1.765. The ideal steering system ensures that the desired steering input by the driver aligns with the output motion of the vehicle, known as the Ackerman condition. Steering gear mechanisms translate rotational motion into translation and adjust the effort applied to the steering linkage. The study's findings contribute to the advancement of steering system design in FSAE vehicles, emphasizing ergonomic considerations and the utilization of advanced software tools like Catia and Solid Edge 2021 for enhanced performance and safety. Highlight: FSAE steering: DFA analysis enhances design efficiency for racing vehicles. Software aid: Solid Edge 2021 streamlines FSAE steering system development. Ergonomic focus: Design prioritizes driver comfort and vehicle performance optimization. Keywoard: FSAE vehicles, Steering system design, DFA analysis, Solid Edge 2021, Ergonomics

Sistem Pendukung Keputusan Rekomendasi Pembelian Motor Pada Dealer Dinamika Honda menggunakan Metode Analytics Hierarchy Process

Motor vehicles, particularly motorcycles, have become an integral part of daily life in many countries. Selecting a motorcycle that meets the user's needs is a critical decision. This study employs the Analytical Hierarchy Process (AHP) method to aid the decision-making process in selecting Honda motorcycles. The AHP method is utilized to describe and measure various relevant criteria in motorcycle selection, such as fuel efficiency, performance, design, price, and safety factors. Subsequently, the sub-criteria and relative weights of each criterion are determined through the participation of an expert panel consisting of motorcycle users, automotive mechanics, and transportation safety experts. The data is analyzed using AHP software, and the results prioritize each type of Honda motorcycle based on the defined criteria and sub-criteria. The recommendations for selecting Honda motorcycles are then compiled based on the rankings provided by the AHP method. The results of research members of the picture of important factors in the selection of Honda motorcycles, as well as providing a systematic and structured approach to the Motorika Consumers Candidates to Bur in Motorsumen Moolensumen Buyers.

Vocational pedagogy in Automotive Mechanics: Ontological dimensions and Cognitive Load Theory implications

This research explored the way ontological categories are fundamentally useful for analysing vocational pedagogy, particularly in the context of Automotive Mechanics. Two ontological traditions were found to be especially useful: mereology, with its focus on part–whole systems, and process ontology, which emphasises the dynamics of change. The convergence of ontological categories with learning science in Automotive Mechanics pedagogy is also examined, particularly the way in which cognitive load theory helps to manage the learning complexities tied to ontological automotive concepts. The research, which targeted first-year student training, employed a qualitative case study methodology encompassing three vocational education and training institutions in Eswatini that provide training in Automotive Mechanics. The data collection involved conducting interviews with lecturers, making observations in both classrooms and workshops, and recording the teaching process on video during a one-year period. Field notes and transcriptions were analysed in order to extract key themes connected to the teaching methods. These themes were identified, grouped and further condensed to isolate the most prevalent teaching practices across the institutions. Upon identifying a significant theme pertaining to parts and wholes, the researchers delved into the philosophical and theoretical aspects of part–whole relations and their role in teaching and learning processes. They discovered beneficial interconnections between mereology, process ontology, and cognitive load theory, especially the way the hierarchical structure of Automotive Mechanics pedagogy interacts with the constraints of working memory and chunking. These connections both foster in-depth pedagogic analysis and contribute to the enhancement of Automotive Mechanics pedagogy.

Competencias profesionales en la carrera Mecánica Automotriz , respuesta a las demandas del mercado laboral

In this work, the generic and specific skills required by the labor market for graduates in Automotive Mechanics are determined. It was framed in a quantitative research, the study was of a propositional descriptive type, it included a non-experimental, transectional design. A survey has been carried out in which the following results were found: 60% of academics consider it important that graduates demonstrate theoretical-practical knowledge in automotive mechanics. Furthermore, 80% of them believe that professional performance should be in line with technological advances in the field. 100% of academics also emphasize the importance of continuing training programs. In response to these findings, the “Diploma in modern technologies in gasoline and diesel engines in automobiles” has been designed in a blended format, aimed at practicing professionals.

Tracer study of 2017-2019 NAMCOL TVET graduates

This article focuses on the outcome of a tracer study of former NAMCOL TVET trainees who completed their training in 2017, 2018 and 2019 in the following trades: Automotive Mechanics, Welding & Metal Fabrication, Office Administration and Plumbing & Pipe-Fitting in terms of their employment profile, opinions on the quality and effect of training they received in light of their employment experiences. The study revealed that former trainees were well equipped with relevant knowledge and skills needed by the job market. However, the majority were unemployed, and among the employed, others were employed outside their specialisation. Furthermore, the study revealed some challenges that former trainees encountered while studying with NAMCOL, among others, inadequate equipment, lack of job attachment opportunities, financial constraints, and the delay of equipment and material supply. The study further made recommendations that could improve TVET quality and delivery at NAMCOL.

Application of CLIL Feature in VET

The Upper Secondary Vocational School for Transport in Bratislava takes up the challenges of arming its students with relevant education. Due to the fact that students learn in various ways, the teachers implement a combination of approaches including synchronous, asynchronous, critical thinking, case study, tutorial, and team-based learning among others. They provide education in both classroom mode and on the online platform. Moreover, they try to educate their students in both Slovak and English languages. Besides the regular English language programs, the teachers also provide core skill-enhancing courses like Technical English, Business English, as well as, English of automotive mechanics and commerce. The paper presents examples of good practice related to the use of a recently written textbook English of Automotive Mechanics and Commerce within the teaching processes, which has been essential for skilled language teachers who also have a nice command of mechanical and commercial understanding.

Survey on the prevalence of occupational injuries to the head and teeth in automotive repair and maintenance in Switzerland

Automotive mechanics are exposed to an increased risk for occupational injuries (OI) to the hands, arms, head and teeth. The aim of this study was to assess the self-reported prevalence of OIs to the head, including traumatic dental injuries (TDIs), among automotive repair and maintenance workers dealing with motorcycles, cars and vehicles over 3.5 tons. We surveyed healthy mechanics in Swiss automotive repair workshops from 2019 to 2021. Overall, 121 automotive repair and maintenance workers responded to our 12-item questionnaire concerning their professional experience, protective measures and occupational injuries to the head and teeth (response rate: 12%). 119 were considered eligible for inclusion and two were excluded. Most persons surveyed (94%) were males with more than 10 years of professional experience. Eighty-five (72%) reported occupational injuries in general, 37 (43.5%) specified OIs to the head or tooth area, and 16 stipulated that these cases teeth were affected. The most common self-reported diagnosis was tooth fracture (p=0.191). Traumatic dental injury in childhood increased the odds ratio (OR) for occupational injury to the head or teeth by a factor of 2.4 (95% CI: 1.1, 5.5, p=0.036). Age, gender and dental trauma in childhood may also influence the prevalence of occupational injuries in general in this cohort. We conclude that occupational dental accidents in automotive repair workshops can be reduced by raising awareness of this issue and by taking effective preventive measures.
 Accepted for publication: February 28, 2022
 Published online: March 16, 2022

Survey on the prevalence of occupational injuries to the head and teeth in automotive repair and maintenance in Switzerland.

Automotive mechanics are exposed to an increased risk for occupational injuries (OI) to the hands, arms, head and teeth. The aim of this study was to assess the self-reported prevalence of OIs to the head, including traumatic dental injuries (TDIs), among automotive repair and maintenance workers dealing with motorcycles, cars and vehicles over 3.5 tons. We surveyed healthy mechanics in Swiss automotive repair workshops from 2019 to 2021. Overall, 121 automotive repair and maintenance workers responded to our 12-item questionnaire concerning their professional experience, protective measures and occupational injuries to the head and teeth (response rate: 12%). 119 were considered eligible for inclusion and two were excluded. Most persons surveyed (94%) were males with more than 10 years of professional experience. Eighty-five (72%) reported occupational injuries in general, 37 (43.5%) specified OIs to the head or tooth area, and 16 stipulated that these cases teeth were affected. The most common self-reported diagnosis was tooth fracture (p=0.191). Traumatic dental injury in childhood increased the odds ratio (OR) for occupational injury to the head or teeth by a factor of 2.4 (95% CI: 1.1, 5.5, p=0.036). Age, gender and dental trauma in childhood may also influence the prevalence of occupational injuries in general in this cohort. We conclude that occupational dental accidents in automotive repair workshops can be reduced by raising awareness of this issue and by taking effective preventive measures.

Language Styles of Automotive Mechanics in Selected Garages in Dar es Salaam

This study investigates the language styles used by automotive mechanics in Dar es Salaam to communicate mechanical information. It is guided by conceptual metaphor theory and translanguaging. Data was obtained from interviews with 20 participants, observation, and social media, specifically Jamii Forums and Facebook. The findings of the study show that automotive mechanics employ a variety of strategies to communicate messages to their clients when giving instructions, advising, explaining mechanical processes, and recommending spare parts to them. These strategies include using loan words, translanguaging, and assigning the names of body parts and human actions to car parts and mechanical processes respectively. Other strategies include the metaphorical use of body parts and personification. The study shows that automotive mechanics use these strategies not only because of their incompetence in using English or Swahili to communicate technical issues but also as a matter of style.

A Study of a Detachable Omni-directional Automotive Mechanism for Efficient Operation of Manual Wheelchairs

A Study of a Detachable Omni-directional Automotive Mechanism for Efficient Operation of Manual Wheelchairs

The Differences in Communication Ability and Mathematical Disposition of Students who are given a Geogebra- Assisted Contextual Learning Model and the Cooperatif Learning Model

This study aims to: (1) analyze the differences in mathematical dispositions between students who are given a contextual learning model assisted by Geogebra and students who are given a model of cooperatif learning assisted by Geogebra at SMK Harapan Mekar 1 Medan, (2) analyze the interaction between learning and early mathematics ability (high, moderate, low) students towards improving students' mathematical communication skills at SMK Harapan Mekar 1 Medan, (3) analyzing the interaction between learning and the initial mathematics ability (high, medium, low) of students towards improving the mathematical disposition of students at SMK Harapan Mekar 1 Medan. The population of this study were all students of SMK Harapan Mekar 1 Medan in class X majoring in Automotive Mechanics and Computer Engineering. Samples were taken randomly from 6 classes, Students were selected as a sample of 2 classes, namely class X-2 as the experimental class I which was given the contextual learning model assisted by Geogebra and class X-3 as the experimental class 2 which was given the cooperative learning model assisted by Geogebra, with a total of 64 students. Data were analyzed using descriptive statistical analysis through two-way analysis. The results of this study indicate that: (1) There are differences in mathematical communication skills between students who are given a contextual learning model assisted by Geogebra and students who are given a cooperative learning model, (2) there are differences in mathematical disposition between students who are given a contextual learning model assisted by Geogebra and students who given a cooperative learning by Geogebra.

Stiffness Optimization of Control Unit of Vehicle Using Vibration Technique

All modern automotive engines are controlled by an ECU. Engine efficiency, combustion, and emission characteristics are all affected by ECU tuning or tune-up. The electrical system in automobiles has evolved over time, and it now incorporates automatic machine control of automotive mechanics. In the beginning, a car’s electrical system consisted solely of primitive wiring technologies for supplying power to other parts of the vehicle. Engine management design specifications for the electronic control unit (ECU). Electronic systems are an unavoidable part of Engine management due to legislation requiring lower pollution, as well as the need for improved efficiency, fuel economy, and continuous diagnosis. The ECU of a TOYOTA Soluna car was used in this project for research and experimentation. ANSYS 19 software will be used to perform a modal and harmonic analysis of the current control unit. After that, different stiffener patterns will be added to improve the vibration characteristics of the ECU housing. We will finalize the stiffener pattern based on the FEA results. The FFT analyzer and the impact hammer test will be used to conduct experimental vibration testing.

Mapeamento e verificação da existência de sistema prévio de tratamento de efluentes nas fontes geradoras de efluentes oleosos no município de Coxim

A Política Nacional de Resíduos Sólidos determina a obrigatoriedade de aplicação da logística reversa para Óleos Lubrificantes, seus derivados e suas embalagens, devido ao risco que este produto oferece ao meio ambiente, entretanto, verifica-se o descumprimento deste dever pelos geradores. Portanto, este estudo objetivou mapear e diagnosticar a situação de empreendimentos que geram esse resíduo no município de Coxim, verificando a existência de um sistema prévio de tratamento de efluentes, o que permite sua posterior logística reversa. Neste sentido a metodologia adotada foi o mapeamento das fontes por meio de visita aos pontos e anotação das coordenadas geográficas com o auxílio de um GPS, após os dados foram processados com auxílio do software livre Quantum GIS. Foram 40 pontos potencialmente geradores de efluentes oleosos em atividade no município: são lavadoras de veículos, oficinas mecânicas, oficinas de moto e postos de combustível, dos quais cerca de 83% possuem sistemas de pré-tratamento de efluentes, que são as caixas separadoras de água e óleo. 7% apresentam seus sistemas com algum problema operacional ou de forma inadequada, a maior quantidade de empreendimentos em dissonância com a Política Nacional é a mecânica de veículos, já que os postos apresentam 100% de eficiência no tratamento anterior, pois todos possuem caixas separadora de água e óleo. Conclui-se com este trabalho que existe a necessidade da mecânica de veículos se adaptarem às políticas vigentes, como postos de gasolina, embora seja necessário aplicar sistemas de pré-tratamento para tratamento de efluentes a todos os potenciais geradores do município, a cidade de Coxim, tem valores significativamente positivos, uma vez que a grande maioria das empresas conta com esse sistema o que implica na operacionalização da logística reversa obrigatória na região de estudo.

Raman microspectroscopic mapping as a tool for detection of gunshot residue on adhesive tape.

Our research group previously reported a novel method for the detection of gunshot residue (GSR) via tape lifting combined with Raman microspectroscopic mapping and multivariate analysis. This initial study achieved proof of concept for this approach. Here, we report validation studies which investigate the reproducibility/ruggedness and specificity of the approach. Raman mapping for GSR detection on adhesive tape was performed on an independent Raman microscope, not used to generate the training set. These independent spectra were classified against the original training dataset using support vector machine discriminant analysis (SVM-DA). The resulting classification rates of 100% illustrate the reproducibility of the technique, its independence upon a specific instrument and provide an external validation for the approach. Additionally, the same procedure for GSR collection (tape lifting) was performed to collect samples from environmental sources, which could potentially provide false-positive assignments for current GSR analysis techniques. Thus, particles associated with automotive mechanics were collected. Automotive brake and tire materials are often composed of the heavy metals lead, barium, and antimony, which are the key elements targeted by current GSR detection technique. It was determined that Raman spectroscopic analysis was not susceptible to misclassifications from these samples. Results from these validation experiments illustrate the great potential of Raman microspectroscopic mapping used with tape lifting as a viable complimentary tool to current methodologies for GSR detection. Furthermore, current methodologies are not well-developed for automated organic GSR detection. Illustrated here, Raman microscoptrosocpic mapping has the potential for the automatic identification of organic GSR. Graphical abstract ᅟ.

Pelatihan Mekanik Sepeda Motor Untuk Anak Putus Sekolah Di Kelurahan Labuhbaru Barat Kecamatan Payung Sekaki Pekanbaru

Motorcycle Mechanic Training For Children Without
 
 SchoolIn West Labuhbaru Urban District Payung Sekaki Pekanbaru
 
 
 Jusnita1), Indra Hasan2) Fikri Hadi3)
 jusnita@umri.ac.id
 
 
 Abstract
 
 Needs service for motorcycles become a routine need to be done by users. The purpose of this activity is to provide training courses for workshop and training of automotive mechanics and to grow the entrepreneurship spirit, helping government program in overcoming unemployment. The methods used are lectures, questions, discussions, demonstrations and practice exercises. The benefits of this service are; The participants get the knowledge and mechanical skills otmotif, Lecturer can implement one tri Dharma Higher Education, for the local government the formation of qualified candidates. This activity was held in West Labuhbaru Village, Payung Sekaki Sub-district, followed by 15 participants, 1 elementary school graduate, 7 junior high school graduates and 7 senior high school graduates. This activity begins by gathering participants in the West Labuhbaru Village hall as a training ground. The results of community service activities in outline include the following components; 1). The success of the target number of trainees. 2) Achievement of training objectives 3) Achievement of material targets that have been planned 4). The ability of participants in the mastery of the material. Target trainees as planned before 10 people. In the implementation, this activity was attended by 15 participants. Thus it can be said that the target participants reached 100%. The figures indicate that the community service activities seen from the number of participants who follow can be said successful / successful.
 
 Keywords: Training, Workshop, Training, Automotive, Entrepreneurship

Do Robots Need to Be Stereotyped? Technical Characteristics as a Moderator of Gender Stereotyping

As suggested by previous results, whether, when designing robots, we should make use of social stereotypes and thus perpetuate them is question of present concern. The aim of this study was the identification of the specific conditions under which people’s judgments of robots were no longer guided by stereotypes. The study participants were 121 individuals between 18 and 69 years of age. We used an experimental design and manipulated the gender and strength of robots, and we measured the perception of how a robot could be used in automotive mechanics for light and heavy tasks. Results show that the technical characteristics of robots helped to anchor people’s judgments on robots’ intrinsic characteristics rather than on stereotypical indicators. Thus, stereotype perpetuation does not seem to be the sole option when designing robots.

Acquired Color Vision Defects and Hexane Exposure: A Study of San Francisco Bay Area Automotive Mechanics.

Occupational exposure to solvents, including n-hexane, has been associated with acquired color vision defects. Blue-yellow defects are most common and may be due to neurotoxicity or retinal damage. Acetone may potentiate the neurotoxicity of n-hexane. We present results on nonhexane solvent and hexane exposure and color vision from a cross-sectional study of 835 automotive repair workers in the San Francisco Bay Area, California (2007-2013). Cumulative exposure was estimated from self-reported work history, and color vision was assessed using the Lanthony desaturated D-15 panel test. Log-binomial regression was used to estimate prevalence ratios for color vision defects. Acquired color vision defects were present in 29% of participants, of which 70% were blue-yellow. Elevated prevalence ratios were found for nonhexane solvent exposure, with a maximum of 1.31 (95% confidence interval (CI): 0.86, 2.00) for blue-yellow. Among participants aged ≤50 years, the prevalence ratio for blue-yellow defects was 2.17 (95% CI: 1.03, 4.56) in the highest quartile of nonhexane solvent exposure and 1.62 (95% CI: 0.97, 2.72) in the highest category of exposure to hexane with acetone coexposure. Cumulative exposures to hexane and nonhexane solvents in the highest exposure categories were associated with elevated prevalence ratios for color vision defects in younger participants.

Work-related back discomfort and associated factors among automotive maintenance mechanics in Eastern Nigeria: A cross sectional study.

Back pain has been identified as a common cause of disability in the working population. Automotive mechanics habitually use awkward back posture in their course of manual activity and hence may be at risk of work-related back pain. To investigate the prevalence, pattern and severity of back pain among automotive maintenance mechanics, as well as the personal and job variables associated with or predicting occurrence of back pain. Using a cross-sectional design, information about self-reported back pain and the associated variables were collected among 684 randomly recruited automotive mechanics. Prevalence of back pain was 76.02%; with the majority experiencing low back pain. 63.3% of the workers reported they limited their activity due to the back pain. Older workers (>50 years), daily work lasting ≥5 hours duration, no more than primary education, being normal weight, frequent use of kneeling and sustained postures, and lack of knowledge of ergonomic postures were associated with increased prevalence of back pain. Lack of job autonomy, inadequate task clarity, heavy physical work load, manual material handling, strenuous posture, noisy environment, vibrations, work schedule and inadequate auxiliary support were also associated with increased prevalence of back pain among the mechanics. Work-related back pain is prevalent among automotive maintenance mechanics. Work-related back pain is high among automotive maintenance mechanics. Workstation policy and legislation on reduction of risks with combined health literacy and ergonomic education programs in this occupational group are imperative.

ASSESSMENT OF WORK-SPACE AND WORK-METHOD DESIGNS IN NIGERIA AUTOMOBILE SERVICE AND REPAIR INDUSTRY

Nigeria automobile service industry is labour intensive with high level of work-related injuries among its workforce. This research assessed work-space (WsD) and work-method designs (WmD), level of compliance with recommended standards (RSs) and effects on workers’ wellbeing. Clearances for services in 55 supine positions and 45 stand-up workbenches’ (SUWb) heights were measured and compared with RSs. Questionnaires were completed among 252 workers to measure prevalence of work-related injuries. Descriptive statistical procedure and Chi-Square tests were conducted using SPSS. 94.4% of workers suffered from low back, 43.5% neck and 40% knees pains among others. Averagely, 43.33±7.3cm and 67±0.15cm were measured for supine position clearance and SUWb heights with 15.03±14.3 and 26.55±16.23 percentage deviations respectively from the minimum RSs. Automotive mechanics may be prone to back, hand and/or wrist related problems and Cumulative Trauma Disorders. Ergonomics trainings, use of mechanical devices and protective equipment will reduce injuries connected with the job. http://dx.doi.org/10.4314/njt.v35i2.12