Motorcycle Engine Research Articles

Simulation and experimental study of motorcycle engine fueled with hho enriched gasoline

Simulation and experimental study of motorcycle engine fueled with hho enriched gasoline

Experimental Study on the Management of Motorcycle Engineering Practice Workshops at SMKN 2 Pangkal Pinang and SMKN 1 Simpangkatis in Relation to Student Academic Achievement

The purpose of this study is to analyze the factors involved in managing practical workshops, including workshop space management, equipment management, and occupational health and safety (K3), in relation to student achievement in motorcycle engineering workshops at SMK N 2 Pangkal Pinang and SMK N 1 Simpang Katis. This research is an ex-post facto study using a correlational approach. The population consists of all 11th-grade students at SMK N 2 Pangkal Pinang and SMK N 1 Simpang Katis, totaling 120 students. The sample size, calculated using the Slovin formula with a 10% margin of error, resulted in 72 respondents. Data collection was carried out through questionnaires and tests, supported by Google Forms. The prerequisites for this research involved tests for normality, linearity, and multicollinearity. Hypotheses were tested using simple and multiple regression analyses. The results showed that workshop space management has a positive and significant impact on student achievement. Likewise, equipment management and K3 were found to have a positive and significant influence on student achievement. Overall, workshop management positively and significantly affects student performance at both SMK N 2 Pangkal Pinang and SMK N 1 Simpang Katis

SCIENTIFIC-TECHNICAL AND PRODUCTION POTENTIAL OF UKRAINE FOR THE PRODUCTION OF SCIENTIFIC PRODUCTS OF DIESEL CONSTRUCTION

In this work, an attempt is made to provide an assessment of the prospects for the development of automotive diesel engineering in Ukraine, the availability and preservation of scientific, technical and production potential for the continuation of the production of knowledge-intensive products of this domestic sub-industry in modern conditions. According to the authors, the manufacturers of vehicles in Ukraine quickly found the support of the State regarding the inclusion of the relatively most complex structural units of the car design - the engine and the chassis - in the list of imported components, since the manufacture of these parts requires high-tech processes that ensure the manufacture of low-quality parts. Other personal opinions of the authors have been expressed regarding the reasons for the absence of energy sources that ensure the economic development of the country and are considered science-intensive products in the modern domestic automotive industry. According to the results of the research, it was established that the list of developments of the domestic automotive diesel industry in recent years extends from the two-cylinder diesel engine of the ZIM-800D four-wheeled motorcycle, which was proven to be introduced into the series, and the ZIM-1901 and ZIM-1902 microcars, to the design documentation of the modern six-cylinder diesel engine 6DTNA2 with a four-valve cylinder head and electronic fuel injection system. As an example of the capacity of the domestic production potential, the production technology of the cylinder head of a four-cylinder diesel engine 4ChN 8.8/8.2 was worked out with the involvement of available production resources and the use of imported components. This approach makes it possible to significantly reduce the time for the manufacture and preparation of the production of structural elements of the domestically produced engine, which is a representative of the "Slobozhansky diesel" power series.

Comparative Analysis of Gasoline and Liquefied Petroleum Gas (LPG) on Motorcycle Engine Performance

This research aims to determine the efficiency of LPG fuel performance compared to gasoline in motorcycle engines. The research method involves a brake dynamometer test with engine speed variations of 2000 rpm, 2200 rpm, and 2500 rpm. Based on the results obtained, the exhaust gas temperature (°C) at an engine speed of 2000 rpm with gasoline is 148°C and 146°C, while with LPG, it is 107°C and 108°C. The fuel consumption rate (cc/min) at 2000 rpm is 15.8 cc/min, 16.2 cc/min with gasoline, and 9.36 cc/min with LPG. At 2200 rpm, the fuel consumption is 16.2 cc/min, 22.8 cc/min with gasoline, and 10.48 cc/min with LPG. At 2500 rpm, it is 20.2 cc/min, 19.4 cc/min with gasoline, and 14.40 cc/min with LPG. In terms of fuel consumption savings, using LPG as a fuel can significantly reduce fuel usage.

Development of Digital Learning Simulators to Increase Vocational Students' Prior Knowledge

Vocational high schools, receive special attention from the government to produce graduates who are skilled and in line with the demands of the 21st century. The COVID-19 pandemic has disrupted the education system, necessitating a shift from offline to online learning methods. This research focuses on developing digital simulator learning (DSL) media to improve the prior or initial knowledge and problem-solving skills of vocational school students in the field of motorcycle engineering and business. The novelty of DSL media is that students not only learn through the reading process but can also see visually through the simulation process, and also simulate troubleshooting on vehicles. This study follows the analysis, design, development, implementation, and evaluation (ADDIE) model. The research results found that smartphone-based DSL media affected increasing competence in initial knowledge of injection systems, while the effectiveness of DSL media was at a medium level.

Analysis of reject pinhole hardfacing process for stellite alloy metal motorcycle engine valves

If businesses wish to compete in the industrial world, they must produce quality and process results. No matter how big or little, some goods will always fail to generate or be rejected in a production process. In this case, companies in the automobile sector have noticed an increase in the number of pinholes that have been returned during the past three months. The company established a maximum reject rate of 0.9% each month based on the rejected data; from May to July, the average reject rate was 0.23%. Finding the factors causing the surge in pinhole rejects that occurred between May and July is the aim of this investigation. The analysis showed that the increase in pinhole rejects was caused by a variety of variables, including machine, process, and human factors. Further examination disclosed alterations to the device's configuration and software, along with the operator's persistent incapacity to comprehend the process. As operations become less efficient, repair components build up in the manufacturing line area. As a result, an improvement plan is needed, which is put into action by giving operator training and rearranging the machine and its software according to process requirements. Operators with a greater understanding of the process yield better results and higher productivity. As a result, operator confidence will rise along with performance. It was discovered that after developments in the field of human resource development, the number of rejections had dropped. Before the repair was finished, the average reject from May to July 2023 was 0.23%; following the repair, the average reject from August to October 2023 was 0.09%

APPLICATION OF THE SNOWBALL THROWING LEARNING MODEL TO IMPROVE K3LH LEARNING OUTCOMES AND INDUSTRIAL CULTURE

This research aims to find out whether the snowball throwing learning model can improve student learning outcomes in the Basic subjects of the Motorcycle Engineering and Business Skills Program at Setia Budi Binjai Vocational School, and is Classroom Action Research (PTK). The learning model applied in this research is the snowball throwing type cooperative learning model. The subjects of this research were students in class X TBSM I SMKS Budi Binjai for the 2023/2024 academic year, totaling 30 students. The sample selection technique uses a purposive sampling technique, which selects subjects based on the researcher's subjective decision, while the variables observed are student activity and learning outcomes. The data collection technique in this research uses tests, namely pretest and posttest. Data analysis was carried out using quantitative descriptive analysis. The research results showed that the application of the snowball throwing learning model could improve the learning outcomes of class Student learning outcomes increased by 0.43 from 0.27 (medium category) in the posttest in cycle I then increased by 0.70 (medium category) in the posttest in cycle II.

Optimization of two-wheeler Bike engine among three different designs using design of experiments

This research presents the results of a fin heat transfer study of three different models of the motorcycle engine. The objective of this study is to minimize the external body temperature because the optimum design will be found when the heat transfer rate is maximized. The study obtains the procurement of a balance between the outer boundary temperature due to convective heat transfer and air-cooled fin design. Heat transfer coefficient varies according to wind velocity (Km/hr) and Nusselt Number. The analysis was performed on three different engine models, named A, B and C. The optimum design was design B through simulation which has lower temperature gain, lower deformation and lower normal stress. DOE (Design of Experiments) was performed on the optimum design of the engine among all with three parameters thickness of fin, size of fin, and shape of fin, and again analysis was performed according to DOE cases. The material used for manufacturing the models was aluminum alloy 6061 which has a thermal conductivity of 200 W/mK. The study was performed on the designed models by taking the outer boundary temperature of 750oC. The heat transfer coefficient was about 77.28 W/m2K at 40 Km/h velocity.

PEMBUATAN PADUAN INTERMETALIK Mg2Si DENGAN DOPING BISMUTH SEBAGAI MATERIAL TERMOELEKTRIK

Increasing efficiency in gasoline fuel consumption in motorized vehicles is currently continuing. One way this is done is by making use of the energy that is lost during the combustion of a motorcycle engine. About half of the energy produced during burning will be lost due to heat energy and exhaust gases. This waste heat can be utilized by converting it into another form of energy. Thermoelectric materials are those that can convert heat energy into electricity directly. Thus, in this work, we synthesized the bismuth-doped Mg2Si thermoelectric material using a solid-state reaction method using a powder in a sealed tube technique. The initial step in the production process involves measuring the raw materials bismuth, silicon, and magnesium using the Mg2Si1-xBix formula (x = 0.00, 0.025, and 0.045). The raw material powder is grinded in a shaker mill before being sealed in a stainless steel tube. The powder is sealed in a tube and heated to 800 °C for 6 hours. According to XRD test results, the Mg2Si phase and Si and MgO phases have formed. The lattice constant of the cubic Mg2Si phase was found at ~0.636 nm. A SEM investigations of surface morphology suggest that bi-doping on Si sites influences grain size refinement. Therefore, it can be concluded that the Mg2Si intermetallic alloy production process was successfully completed.

Motorcycle Engine Performance Comparison Between Laser Ignition System and Conventional Ignition System Through Simulation

Motorcycle Engine Performance Comparison Between Laser Ignition System and Conventional Ignition System Through Simulation

Performance of Motorcycle Fueled with Pertalite‒LDPE Pyrolytic Oil Blendings

Plastic use has expanded substantially, and its waste is primarily disposed of in landfills, which further harm ecosystems owing to inadequate waste management. Pyrolysis, which converts plastic waste into liquid fuel, is one of the potential chemical recycling alternatives for plastic. The purpose of this study is to determine the viability of using pyrolytic oil from an LDPE grocery bag as an alternative fuel for a four-stroke spark ignition motorcycle engine. The LDPE grocery bag was pyrolyzed at 500 oC at a heating rate of 3 oC/min, and the condensed pyrolytic vapor's characteristics were determined. Torque, power, and fuel consumption were investigated using a four-stroke spark ignition motorbike powered by pertalite‒LDPE pyrolytic oil blends. The results reveal that the properties of LDPE pyrolytic oil and pertalite were considerably different; hence, when the blending fuel was applied to the motorcycle, the engine torque and power decreased at low engine speed (2000‒3500 rpm), about equal at medium speed (3500‒5500 rpm), and increased at high engine speed (5500‒8500 rpm). Furthermore, the greater blending fuel greatly reduced fuel usage due to the high viscosity of the LDPE pyrolytic oil.

THE ANALYSIS OF PORTING AND POLISHING RESULTS AGAINST MOTORCYCLE TORQUE 150 cm3

The purpose of this study is to investigate the torque results on standard and modified vehicles, presenting torque comparison graphs for standard and modified motorcycle engines. The experimental study used a 150cm3 motorcycle, analyzing the experimental results directly. The study shows the difference in performance, especially torque, across all engine variations at every 500rpm. The study involved porting and polishing modifications to increase engine torque, resulting in a 4.8% increase in torque over standard. The modifications widened the torque range, providing improved performance across a wide range of speeds. The modified motorcycle exhibited faster acceleration, navigating the terrain and heavy traffic with ease. Improved performance at high speeds, stability and temperature maintenance were observed. The porting and polishing modifications had a positive impact on engine torque throughout 6500 to 9000rpm, with 6500 rpm porting A and polishing B displaying optimal results, achieving 14.4Nm of torque, an increase of 0.8Nm over standard conditions.

THE RELATIONSHIP BETWEEN AUTHORITARIAN PARENTING AND CAREER PLANNING (Correlation Study on Class XI Students of Motorcycle Engineering Department at Vocational High School)

THE RELATIONSHIP BETWEEN AUTHORITARIAN PARENTING AND CAREER PLANNING (Correlation Study on Class XI Students of Motorcycle Engineering Department at Vocational High School)

Multi-Domain Smart Safety Helmet

Motorcycle accidents and head injuries are critical concerns globally, especially where helmet non-compliance is prevalent. To address this, a multi-domain smart safety helmet is proposed for rider safety and accident prevention through advanced sensor technology. This smart helmet integrates sensors like an MQ-3 alcohol sensor and helmet detection sensors to ensure safety conditions before the motorcycle engine starts. If alcohol levels exceed a threshold, the ignition system disables, preventing intoxicated riding. Helmet detection promotes helmet use, reducing head injury risk. The scalable sensor infrastructure enables multi-domain applications beyond motorcycles. This helmet can integrate into industries like coal mining and firefighting. In coal mining, it monitors environmental conditions and worker vital signs. In firefighting, it detects hazardous gases and monitors firefighter status. During motorcycle operation, the helmet continuously monitors critical parameters—speed, tilt, and environment—providing immediate feedback on unsafe behaviours. In accidents, the helmet's accelerometer detects impacts, activating GPS to pinpoint the location and GSM to alert emergency contacts. This smart helmet aims to enhance motorcycle safety, prevent accidents, and expedite emergency responses. It represents progress towards reducing motorcycle-related injuries and fatalities, with adaptable features for broader safety applications across industries and domains.

Sistem Keamanan Kendaraan Jarak Jauh Menggunakan GPS Berbasis NODEMCU ESP8266

The use of motorcycles as a means of personal transportation is a practical and easy-to-use transportation option in various crowded road conditions. In general, vehicle security systems are still very weak, and additional security systems are needed to prevent theft, especially in older vehicles. To increase security on motorbikes, researchers developed a security system that can monitor the location of motorbikes that can be monitored and controlled via an Android application. In making this prototype, the NodeMCU ESP8266 microcontroller as the Internet of Things (IoT), Ublox Neo-6M GPS module, and relays to control motorcycle electricity. The GPS module is used to determine the location based on the latitude and longitude of the motorcycle directly and will be sent to the server and then displayed through the Android application. In addition to displaying location coordinates, this application can also control motorcycle electricity with NodeMCU ESP8266 to activate relays connected to motorcycle electricity to function as turning on or off the motorcycle engine and there is a location history menu obtained from the GPS module.

Experimental investigation on the potential of passive prechambers for use in 2S engines

Design improvement of Internal Combustion Engines (ICEs) is required by the continuous update of European exhaust emission standards and vehicle registration protocols. This has pushed research and industry efforts towards the development of Low Temperature Combustion (LTC) systems. Among various LTC technologies, the so called “jet ignition” is claimed to be well-suited for light engines, since it provides a more uniform and rapid combustion while ensuring the mixture ignition process. In this context, the adoption of prechambers was found well-suited for two-stroke engines, for which low-pressure direct injection technologies have been developed in the last decade to reduce the fuel short circuit phenomenon. The present paper experimentally investigates the use of different passive combustion prechambers in a Low-Pressure Direct Injection (LPDI) 2-stroke engine, with the main purpose to understand the relationship between prechamber geometrical parameters and engine performance. A 50-cc single cylinder LPDI motorcycle engine is chosen as the test case and it is re-arranged to run in jet ignition mode. The experimental analysis focuses on the evaluation of benefits provided by jet ignition combustion compared to the baseline LPDI propulsion unit at different engine operating points. Design criteria for prechambers development and the tuning process of engine combustion parameters (such as start of injection, ignition time and throttle valve opening) are described in detail. The results of experimental activity are finally shown and critically discussed, highlighting advantages and disadvantages of this application in terms of engine performance, efficiency and cycle-to-cycle variation.

ANALISIS SISTEM PENGISIAN BATERAI PADA ROBOT KENDALI PENGANGKUT SAMPAH

Abstract -- Motorcycle engine electricity requires a source of electrical energy so that the starter system, ignition system, lighting system, and control system function. The charging system supplies electrical energy to the battery to run (supply) the electrical system on the waste transporter control robot. Taking this into account, this research analyzes the battery charging system on the waste transport control robot. The results of the research are charging voltage and electric current coming out of the kiprok and entering the battery with a testing time of 2 minutes at 1200 rpm to 1500 rpm with 3 tests.

E-Nose for Piston Ring and Cylinder Block Condition Detection of Motorcycle Engine Based on MyRIO LabVIEW Programming

This study has created a system capable of identifying the condition of the piston ring and cylinder block of a 4-stroke motorcycle engine using petrol or similar through exhaust emissions. Multisensory gas, sensitive to changes in CO, CO2, NOx, and HC gas elements and compounds, is installed as an input to the exhaust channel and integrated using LabVIEW programming on the NI myRIO module. Multisensory data is processed using the FFT and the backpropagation method to classify whether the piston rings and engine cylinder block are in good or damaged condition. Tests have been carried out on motorbikes with piston rings and engine cylinder blocks that are in good, damaged, or unknown condition. During the test, the target error value for motorcycles with piston rings and engine cylinder blocks in good or damaged condition is less than 1%. The system can distinguish the condition of the piston ring and cylinder block of a motorcycle engine that is 100% optimal and 100% damaged with an error of 0% compared to the compression test method, and the maximum error is 20% Compared to the technician's manual method. Ten motorcycles were randomly tested in unknown conditions; 50% were in good condition, and 50% were damaged. For further development, an electronic nose system can detect engine combustion conditions and damage to cylinder rings and 4-stroke motorbike engine blocks based on exhaust emissions.

Enhancing oil pressure dynamics in a high-performance racing engine with innovative lubrication system tuning

This work focuses on fine-tuning the oil pressure dynamics of a single-seater formula car, a participant in international engineering competition organized by the Society of Automotive Engineers (SAE). Adhering to competition guidelines, the Honda CBR600RR 05-06® motorcycle engine, renowned for its 600 c.c. displacement and exceptional power-to-weight ratio, emerges as a popular choice. However, as this engine is originally equipped with a wet sump lubrication system (featuring deep wet sumps to prevent oil starvation during turns), this presents challenges when adapted to Formula Society of Automotive Engineers (FSAE) cars. Cornering leads to significant pressure drops, as sloshing exposes the pickup port, causing consequential engine issues. To tackle sloshing-related challenges and pressure loss during lateral and longitudinal g-forces, a dry sump lubrication system was introduced in the Formula car. The dry sump system also lowers the engine’s center of gravity, by reducing sump height. However, transitioning to the dry sump system and integrating it with the existing engine demanded extensive design modifications to various components, including the oil reservoir, lubrication lines, scavenging pump, and oil ports. These adjustments were essential to achieve the targeted elevation in oil pressures at higher engine RPMs. A relationship between the engine oil pressure and the engine RPM was developed as part of the study.

The Influence of Fuel Pump Pressure Variations on the Performance of 2-Stroke Gasoline Direct Injection Engines

The direction of technological development in 2-stroke gasoline direct injection engines is to improve engine performance and reduce exhaust gas pollution, where the solution to achieve this is to use a high-pressure electric fuel pump that produces stable fuel pressure and is practical in its application. This research aims to determine the influence of variations in fuel pressure on the performance, especially torque and power, of a 2-stroke gasoline direct injection engine. Tests were carried out on a 110 cc 2-stroke gasoline direct injection motorcycle engine using Research Octane Number (RON) 90 fuel at varying fuel pressures of 7.5 Bar, 8 Bar, and 8.5 Bar on a chassis dynamometer to obtain engine performance data in the form of torque and power. The results of this research show that increasing fuel pressure will increase the atomization of fuel particles so that it will influence increasing the performance of this engine, where maximum torque and power of 6.20 Nm and 2.00 kW are achieved at 3250 rpm, at a pressure of 8.5 Bar.