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PENGARUH DIAMETER ROLLER CVT (CONTINUOUSLY VARIABLE TRANSMISSION) DAN VARIASI PUTARAN MESIN TERHADAP DAYA PADA YAMAHA MIO SPORTY TAHUN 2007 Bagus Wibowo, Restu Prima
Jurnal Nosel Vol 1, No 3 (2013): January
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The purpose of this research are: (1) To know the effect of CVT (Continuously Variable Transmission) roller diameter to engine power on Yamaha Mio Sporty 2007, (2) To know the effect of variation of engine rotations to engine power on Yamaha Mio Sporty 2007, (3) To know the interaction between CVT (Continuously Variable Transmission) roller diameter and variation of engine rotations to engine power on Yamaha Mio Sporty 2007. The research used experimental methods. Techniques of data analysis in this study using the descriptive data analysis graphically illustrates the results of research in the histogram or frequency polygon which connects between the variables. Based the research can conclude that: (1) Changes in the size of the diameter of the roller CVT 16 mm is capable of producing maximum power peak in the early rounds of the engine so as to generate a lap down to the more powerful. (2) Changes in the size of the diameter of the roller CVT 17 mm produces decreased power because of too rapid movement of the roller is not in accordance with engine speed so that the workload is too imposing received roller CVT. (3) The use of roller diameter of 16 mm on a CVT motorcycle Yamaha Mio Sporty produce maximum power at engine speed earlier and more optimal than the use of CVT roller 15 mm. On the use of 16 mm diameter roller CVT engine produces maximum power of 4.55 hp at 7500 rpm engine speed, while the use of 15 mm diameter roller CVT produce power equal to 4.54 hp at 7800 rpm engine speed. (4) The use of roller diameter of 17 mm on a CVT motorcycle Yamaha Mio Sporty produce too rapid achievement of resources so that maximum power is not optimal. On the use of CVT roller diameter 17 mm produces a maximum power of 4.48 hp at 7700 rpm engine speed. (5) The increase in engine speed can increase the power generated at the wheel axle to the maximum because the larger the engine speed will cause a centrifugal force generated CVT roller so that the greater the power of the machine can be supplied with up to the axle.The increase in engine speed upon reaching the maximum power to the power generated at the wheel axis decreases.

PENERAPAN MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT (TGT) UNTUK MENINGKATKAN AKTIVITAS DAN PEMAHAMAN BELAJAR SISWA KELAS XI TEKNIK KENDARAAN RINGAN SMK N 1 SAWIT PADA MATA PELAJARAN MEMPERBAIKI SISTEM INJEKSI BAHAN BAKAR DIESEL TAHUN PELAJ Triyatno, Sunu
Jurnal Nosel Vol 4, No 3 (2016): January
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The objectives of this research are to investigate (1) the improvement of the learning activity on the topic of discussion of Diesel Fuel Injection System Repair of the students in Grade XI of Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit through the application of the cooperative learning model of the TGT type; and the improvement of the learning comprehension on the topic of discussion of Diesel Fuel Injection System Repair of the students in Grade XI Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit through the application of the cooperative learning model of the TGT type. This research used the classroom action research with two cycles. Each cycle consisted of four phases, namely: planning, implementation, observation, and reflection. The subjects of this research were the students in Grade XI Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit. The sources of the data of research were observation sheet on the learning activity and the result of learning comprehension test. The data of research were collected through test non-test (observation sheet). The data of the former were validated with the content validity and those of the latter were validated with construct validity. The procedures of research consisted of a series of four activities, which were done in repeated cycle namely: planning, implementation, observation, and reflection. The application of the cooperative learning model of the TGT type can improve the students? learning activity and learning comprehension on the topic of discussion of Diesel Fuel Injection System Repair of the students in Grade XI of Light Vehicle Engineering 1 of State Vocational High School 1 of Sawit. In Pre-cycle the percentage of the students? learning activity was 45.45%. Following the treatment, it became 66.67% in Cycle I and 81.82% in Cycle II respectively. In Addition, in Pre-cycle, the percentage of the learning comprehension was 48.48%. Following the treatment, it became 66.67% in Cycle I and 81.82% in Cycle II respectively.

ANALISIS PENGARUH PENAMBAHAN UNSUR MAGNESIUM (MG) TERHADAP TINGKAT KEKERASAN, STRUKTUR MIKRO DAN KEKUATAN IMPACT PADA VELG ALUMINIUM (AL - 0,5% SI) El-Karomi, Kurnia Syahri
Jurnal Nosel Vol 4, No 2 (2015): October
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This study aims to: (1)Determine the effect of the addition of the element magnesium (Mg) in the aluminium casting on the level of hardness. (2) Determine the effect of the addition of the element magnesium (Mg) in the aluminium casting to micro structure. 3) Determine the effect of the addition of the element magnesium (Mg) in the aluminium casting on the level of impact strength. This study was descriptive research that clearly describes the results of experiments in the laboratory to some specimens. This method is implemented by providing independent variables intentionally to the object of study to know the effect on the dependent variable. The results showed three main things: (1) The more elements of magnesium (Mg) are added, the hardness value increased aluminium casting results.(2) The more elements of magnesium (Mg) is added, the grain size gets smaller aluminium casting results. (3) The more elements of magnesium (Mg) is added, then the impact strength aluminium casting results decline, but the decline is not too much.

ANALISIS PENGGUNAAN CDI DIGITAL HYPER BAND DAN VARIASI PUTARAN MESIN TERHADAP TORSI DAN DAYA MESIN PADA SEPEDA MOTOR YAMAHA JUPITER MX TAHUN 2008 Purnomo, Heri
Jurnal Nosel Vol 1, No 1 (2012): July
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The purpose of this research is (1) Analyzing the use of CDI digital hyper band to the torque and engine power on the motorcycle Yamaha Jupiter MX in 2008. (2) Analyze the variations of engine round to the torque and engine power on the motorcycle Yamaha Jupiter MX 2008. This research has done in AHASS TARUNA MOTOR SPORT WORKSHOP that located in Jl. Bhayangkara no. 78 solo using DYNOJET. This research uses experimental methods. The sample in this research is a motorcycle Yamaha Jupiter MX in 2008 with 2S6439296 engine number and chassis number MH32S60058K439042. Based on the results of the research can be summed up: (1) Increasing round of engine could raise torque and power produced at the axle to the maximum. The round of engine a having reached a maximum of torque and power making torque and power that is produced at the axle to decline. (2) Using of CDI digital hyper band does not increase the maximum torque and power produced at the axle. (3) Using of digital CDI hyper band can increase round maximum machine , as that of 1500 rpm from round maximum machine that can be attained by standard CDI. Increasing round maximum machines increases the speed maximum that can be attained by a vehicle .

PENGARUH PEMANASAN DAN PENAMBAHAN ETANOL PADA BAHAN BAKAR BENSIN TERHADAP TORSI DAN DAYA PADA SEPEDA MOTOR YAMAHA VEGA R TAHUN 2009 Widodo, Ari
Jurnal Nosel Vol 3, No 3 (2015): January
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Purposes of the research are to know effect of fuel heating in cylinder block and ethanol addition in gasoline on torsion and power of Motorcycle Yamaha Vega R 2009.The research is an experimental one. Sample is taken by using purposive sampling technique. Sample of the research is Motorcycle Yamaha Vega R 2009 with machine number MH34D72039J261872. Data of torsion and power is obtained by using dynotest Sportdyno V3.3. Data of the research is, first, data of torsion and power without fuel heating and variation of ethanol and gasoline mixes are 0%, 5%, 10%, 15%, 20% and 30%; second, data of torsion and power with one-pipe fuel heating and variation of ethanol and variation of ethanol and gasoline mixes are 0%, 5%, 10%, 15%, 20% and 30%; third, data of torsion and power with two-pipe fuel heating and variation of ethanol and variation of ethanol and gasoline mixes are 0%, 5%, 10%, 15%, 20% and 30%; data of torsion and power with three-pipe fuel heating and variation of ethanol and variation of ethanol and gasoline mixes are 0%, 5%, 10%, 15%, 20% and 30%.Based on results of the research, it can be concluded that, first, the fuel heating either one-pipe, two-pipe, or three-pipe types can reduce torsion and power of motorcycle Yamaha Vega R 2009; second, ethanol addition of premium gasoline can reduce torsion and power of the motorcycle; third, the highest torsion of the tests, namely 8.913 N.m., was found for 0% ethanol addition without fuel heating, whereas the lowest torsion, namely 8.493 N.m., was found with variation of ethanol additions of 20% and 25% and two-pipe fuel heating; fourth, the highest power, namely 8.467 HP, was found with variation of ethanol additions of 0% and 5% without fuel heating, whereas the lowest power, namely 7.933 HP, was found with ethanol addition of 30% and two-pipe fuel heating.

EFEKTIVITAS PENERAPAN PEMBELAJARAN KOOPERATIF TIPE THINK PAIR SHARE (TPS) DALAM MENINGKATKAN MOTIVASI BELAJAR DAN HASIL BELAJAR SISWA KELAS XI PADA PEMBELAJARAN CHASSIS OTOMOTIF DI SMK BHINNEKA KARYA SURAKARTA Laksena, Fendy
Jurnal Nosel Vol 2, No 3 (2014): January
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This research aims to enhance grade XI students? motivation and achievement at SMK Bhinneka Karya Surakarta by applying cooperative learning type think pair share (TPS) for automotive chassis learning process.This is an class action research (CAR). In the basis of data analysis, the application of cooperative learning type think pair share (TPS) was able to boost students? motivation and achievement. The increase of students? motivation in learning automotive chassis subject could be seen from motivation observation sheet. The preaction percentage of students? achievement at class XI TOA was 49.10% with less active category, the first cycle of 65.95% with moderately active category and the second cycle was 80.29% with good activity category. Meanwhile, in class XI TOB the percentage was 47.22% with less active category, the first cycle of 63.54% with moderately active category and the second cycle was 81.60 % by category of activity either. The accomplishment value of the students preaction as shown by prettest score was 0% of the total 63 students of of class XI of automotive engineering, then there was increase on cycle I results-posttest completion percentage of 47.62% with low criteria. Later in the second cycle averages the percentage who completed the posttest score of 82.54% with a high criteria.It then could be inferred that the application of cooperative learning type think pair share was proved effective in enhancing students? motivation as shown by the increase on each cycle in which the target achievement was set to 75%. The students? accomplishment also reached the minimum target that was 75% for automotive chassis learning process at SMK Bhinneka Karya Surakarta

EFEKTIVITAS THE 5E LEARNING CYCLE MODEL DENGAN PENDEKATAN INKUIRI BERBASIS ICT (INFORMATION & COMMUNICATION TECHNOLOGY) DALAM PEMBELAJARAN CHASSIS OTOMOTIF Nugroho, Cahyo Aji
Jurnal Nosel Vol 2, No 2 (2013): October
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The purpose of this research is to know the effectiveness of inquiry 5e learning cycle model based on ICT on learning outcomes and students? activity in teaching automotive chassis in class XII SMK Pancasila in 2012/2013 academic year. Related to the objective of the research, the research used experimental method. The research design used is Quasi- Experimental Design with Pretest- Posttest and Control Group. The total number of population is 120 students coming from four classes. The sampling of the research is cluster random sampling. From the population, two classes/ clusters were taken randomly as the sample so there are two classes in this research, experimental and control groups. Experimental group used inquiry 5e learning cycle model based on ICT, Control group used lecture model based on ICT. Technique of the data collection consist of test and obsrvation letter.The data are analyzed by using t-test formula (t-test for independent sample). In this case, data which are analyzed are pre-test and post-test scores of the two groups. The result of t-test in post-test computation shows that t observation (t0) is 3.73. Value tt with degree of freedom 48 of t table (tt) = 2.00. In this case, to = 3.73 is higher than tt = 2.00 (to > tt). From the result, there are significant difference learning outcomes between using inquiry 5e learning cycle model based on ICT and by using lecture based on ICT. Observation result from observer concluded, there are significant difference on the students? activity of chassis automotive between the students? taught by using inquiry 5e learning cycle model based on ICT and those taught by using lecture based on ICT. The experimental group show that students? activity better than control group.Based on the research finding above, it can be concluded that Inquiry 5e Learning Cycle Model Based on ICT is effective to learning outcomes and students? activity in teaching automotive chassis in class XII SMK Pancasila in 2012/2013 academic year.

ANALISIS PENGGUNAAN AIR DISTILASI SEBAGAI MEDIA PENYERAPAN EMISI NOX PADA GAS BUANG SEPEDA MOTOR HONDA SUPRA X 125 TAHUN 2012 Setyawan, Budhi
Jurnal Nosel Vol 2, No 4 (2014): April
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Purposes of the research are: (1) to know effect of distilled-water use as an absorptive media on NOx emission of exhaust gas of motorcycle Honda Supra X 125 2012, and (2) to know effect of distilled water surface height on absorption of NOx emission of exhaust gas of motorcycle Honda Supra X 125 2012. The research was an experimental method. Data analysis of the research was descriptive comparative analysis. Descriptive research method aims to describe and to interpret existing data attempting to seek problem solving through causal relationship, namely to examine particular factors related to investigated-situation or phenomenon and to compare one factor to another (Surakhmad, 1998: 139, 143). Results of the research conclude that: (1) there has been a decrease of NOx after the use of distilled water as an absorptive media of exhaust gas. Emission level of NOx without distilled water is greater than that of with distilled water. Mean difference between NOx emission without distilled water and one with distilled water at water surface height of 200 mm is 1.65 ppm. While, mean difference of NOx emission with water surface of 200 mm and that of 400 mm is 0.42 ppm. Further, for water surface height of 400 mm and 600 mm, the mean difference is 0.44 ppm; (2) there is effect of water surface height on power of absorbing NOx emission of exhaust gas. The higher distilled water surface height, the longer period of time the exhaust gas contact with water so that water-soluble NOx emission level is greater also. For water surface height of 400 mm, mean emission of NOx is 11.00 ppm and for water surface height of 600 mm, mean NOx emission is 10.56 ppm.

ANALISIS PRODUKTIVITAS DAN PERHITUNGAN WAKTU BAKU DI BAGIAN MACHINERY DENGAN MENGGUNAKAN METODE WORK SAMPLING DI UNIT MACHINERY AND TOOL PT.MEGA ANDALAN KALASAN Agustian, Devi
Jurnal Nosel Vol 3, No 1 (2014): July
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The purpose of this research is to quantify the productivity and standard time achieved by the operator in the manufacture of objects produced in turning machine C6232B1, CNC Turning machine Doosan Puma GT2100, cutting machine at machinery division PT. Mega Andalan Kalasan by using work sampling method. This research is descriptive quantitative. Research by the work sampling method executable instantaneously at the times specified by the researcher visits. Data collection is carried out by observation, interviews, and direct observation with the operators work activity during productive or idle time.Based on data and results of research analysis gained: (1) Percentage of productivity from turning machine operator, CNC machine operator, and cutting machine operator are 83.40%, 82.26%, 83.80%. (2) Standard time achieved by turning machine operator are Spindle Luar5,12 minutes, Slider Luar1,16 minutes, Mur Handle Pendorong6,68 minutes, Tutup Boom21,41 minutes, Ring Rangka Depan0,97 minutes, Bush Pipa Pengungkit2,27 minutes, Baut Gulungan Kabel4,97 minutes, As Pengunci1,25 minutes, Dudukan Head And Foot End 2,47 minutes, Alur Tiang Panci 11,42 minutes, Engsel Penompang Betis 2,54 minutes, Handle Ungkit Gasspring Pendek2,04 minutes, As Dudukan Panel3,26 minutes, Sambungan Motor Backraise 3,36 minutes, Mur Castor 6,53 minutes. Standard time achieved by cutting machine operator are Engsel Penompang Betis10,54 minutes, Mur Castor Ms6,56 minutes, Dudukan Motor Backraise6,84 minutes, Rumah Ulir22,39 minutes, Mur Castor Stainless9,56 minutes, Mur Pengungkit Kanan4,43 minutes, Mur Pengungkit Kiri5,09 minutes, Tutup Penompang Betis12,92 minutes, Rumah Tiang Betis11,89 minutes, Sock Pendorong8,14 minutes, Roda15,27 minutes, Slider Luar1,10 minutes, Ulir Pendorong Backrest3,36 minutes, Mur Pengangkat Chasis3,05 minutes. Standard time achieved by CNC machine operator are Porok Castor 8,21 minutes, Baud Engsel Kaki 4,22 minutes, Pin Pengunci 3,91 minutes, Pin Pengungkit 2,43 minutes, Pin Backreise 2,57 minutes, Engsel 7,36 minutes, Pin Roda 2,98 minutes, Pin Motor 2,99 minutes.The average from percentage of standard time differences every operators from turning machine operator, cutting machine operator, and CNC machine operator are 11.73%, 11.5%, and 11.75%. The average is not exceed than company standard tolerance 25%.

ANALISIS KUALITAS HASIL REPAIR WELDING TERHADAP SIFAT FISIS DAN MEKANIS PADA CAST WHEEL ALUMINIUM DENGAN METODE PENGELASAN OKSI-ASETILIN Chafiedz, Nur
Jurnal Nosel Vol 2, No 1 (2013): July
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The purposes of this research are: (1) To know microstructure oxy- acetylene welded joints in aluminium cast wheel.,(2) To know hardness aluminium cast wheel before and after oxy-acetylene welding.,(3) To know the impact strength in aluminium cast wheel before and after oxy-acetylene welding From the research, we can conclude that the chemical composition on aluminium cast wheel including alloy Aluminium Silicon, because the element Si alloy is the largest, ie 7.38% Si. Microstructure on base metal granules the spread equally on the surface of Al. Specimen hardness value raw material higher than oxy-acetylene welding specimens. The average value of raw material hardness results 57.58 BHN while the average value of oxy-acetylene welding results 54.80 BHN. Average hardness oxy-acetylene welding specimens in the HAZ area 38.69 BHN. The average value of raw material impact results 0,12 J/mm² while the average value of oxy-acetylene welding results 0,085 J/mm².

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