จำนวน Repository ( 62 )

การสร้างชุดทดสอบความคงทนไดอิเล็กทริกต่อไฟฟ้าแรงดันสูงของฉนวนไฟฟ้า
การสร้างชุดทดสอบความคงทนไดอิเล็กทริกต่อไฟฟ้าแรงดันสูงของฉนวนไฟฟ้า

This research is presented by the designing and constructing test package that are divided into three types; the liquid insulator solid insulator and gas insulator. These materials are provided by in country in order to construct the test package for the results of expected to have at least error. This leads to reliability and validity in this study. The design of the liquid insulator of test package was conducted by the standard IEC 156 in which the material tested used oil transformer. Additionally its solid insulation was the range of catching objects and adjusting using the sheet of bakelite. Furthermore its gas insulation used acrylic was consisted of gas inside oxygen of pressure at 2 Bar. Three types of test could be supplied AC high voltage to test package causing of breakdown via insulators. After that taking note the value of breakdown was the liquid insulator of test material at 29.86kV its solid insulator at 36.32kV and its gas insulator (oxygen) at 48.40 kV

2563
การทดสอบประสิทธิภาพระบบการพิมพ์พื้นนูนและการพิมพ์พื้นฉลุบนวัสดุจากเยื่อธรรมชาติเพื่อพัฒนาเป็นบรรจุภัณฑ์ที่เพิ่มมูลค่าและการใช้งานในเชิงพาณิชย์
การทดสอบประสิทธิภาพระบบการพิมพ์พื้นนูนและการพิมพ์พื้นฉลุบนวัสดุจากเยื่อธรรมชาติเพื่อพัฒนาเป็นบรรจุภัณฑ์ที่เพิ่มมูลค่าและการใช้งานในเชิงพาณิชย์

This research is to study and develop natural pulp materials for packaging. This is the agricultural waste. To benefit commercially To build capacity and capability in economic development and environmental conservation Is the creation of packaging work Formed in sheets and shapes using natural materials such as mulberry paper pineapple paper. And banana paper Then design and create the packaging. To test the properties. According to the standard packaging. They also sought satisfaction in the form and use of natural pulp materials. Include the packaging according to the case study. Research indicates that When developing pulp quality The banana paper can not be printed. Can print lines. But screen printing is not suitable for banana paper. Foil printing case when mulberry paper and pineapple paper Foil printing Printing lines Can be done well on mulberry paper and pineapple paper. Death images can be printed on all three types of paper but the screen is not good. Sealing material from natural pulp onto corrugated paper. From the test it was found that the amount of adhesive that was suitable for sealing was between 20-30 mg. If the adhesive was less than 20 milligrams only mulberry paper was sealed. The amount of glue at 50 milligrams is the amount of glue is too high causing all three types of paper to rot. Because of the adsorption of glue to the pulp. Packaging material from natural pulp. Fold of banana paper that does not pass the test. The banana paper is high in strength. When folding the packaging causes the pulp to split along the crease. Can not be molded. Evaluation of the satisfaction with the form and use of packaging materials from natural pulp. It was found that the average value of paper pulp suitable for packaging materials from natural pulp was the most agreeable paper. Secondly paper shreds are very popular and the last one is banana paper. Moderate agreement

2563
การออกแบบและพัฒนาหุ่นทดสอบการชนรถจักรยานยนต์
การออกแบบและพัฒนาหุ่นทดสอบการชนรถจักรยานยนต์

The purpose of this research is to design and develop dummy (anthropometric test dummy) for motorcycle frontal collision test. The conceptual design of dummy is male aging between 25-55 years old 6 pieces of rib and deformable 76.2 mm. In order to performance test it was classified into 2 testing by static testing and dynamic testing. For static testing the energy absorption behavior between force and deflection or “ static curves” is determined. While dynamic testing is considered to the energy absorption behavior between forces and several velocities or dynamic forcedeformation curves impact acceleration impact force on sternum and injury severity with the relationship of viscous in velocity function. The results of the energy absorption behavior on chest of dummy from static testing the tendency of chest deflection is relatively low during the initial force and suddenly increasing when rise to the critical point. This behavior is similar to the energy absorption of the human chest. Therefore the design features of this test dummy can reflect behavior that is close to the human anatomy. In case of dynamic testing it is discovered the ability of the dummy testing to absorb up to 560 J impact acceleration 3 8 . 4 3 g impact force on sternum 5 . 0 9 4 kN. The viscous in velocity function is 0 . 8 2 5 m/ s which compared to injury severity at AIS3+ ( or higher than serious injury) . Therefore the dummy design in this research project corresponds to the collision test of a motorcycle.

2563
การออกแบบและพัฒนาชุดขับเคลื่อนในการทดสอบการชนรถจักรยานยนต์
การออกแบบและพัฒนาชุดขับเคลื่อนในการทดสอบการชนรถจักรยานยนต์

A design and development of powertrain module crash test using with the motorcycle crash test is aim to create a special tool for automotive assessment and safety engineering based on the realistic test. In order to main system of power module tester is consisting of powertrain system using electrical motor transferring system using chains and gears and control direction system using dual rails respectively. Based on powertrain module tester performance crashing speed relative angle between target and distance before crash are regarded. Nevertheless the result of testing performance was conducted to statistic hypothesis test by Mean Absolute Deviation: MAD Standard Deviation: SD Mean Square Error: MSE Mean Absolute Percent Error: MAPE and Root Mean Square Error: RMSE. The results of this approach discovered that the crashing speed was the highest error with 96% and the lowest was distance before crash. Furthermore it was corresponding to the statistic hypothesis test. However the result of the error was influence of the rails distance which limit by funding. In case of crash energy the mean of energy was appeared on 10.978 J. Whereas the tendency of variable was similar to polynomial equation.

2563
เครื่องจำลองการชนคนเดินเท้า
เครื่องจำลองการชนคนเดินเท้า

Recently the consumption rate of vehicle is continuously an increase as an economic growth. This not only causes the massive traffic but also effects on the accidental capacity especially the road accident between car and pedestrian. The most of victims who dead are Vulnerable Road Users are crashed by the front-end structure. Regarding this problem; the possibility of the Pedestrian Crash Simulator has studied and established following the Euro New Car Assessment Programs in Pedestrian Protection. This simulator can be adjusted in 3 axles of tested position. Besides the body forms are used as impactors which are pushed the high speed drive unit via the iron less linear motor. In addition the simulator can be adjusted from 0 to 65 of degree comparing the horizontal line. As a result the limitation of the Pedestrian Crashed Simulator is linear speeds because of budget limitation. The highest of performance is not more than 3000 mm/s with 19.46 mm/s2 of speeds and acceleration respectively. However this simulator can be developed the ability by addition of the power unit and control equipment. The highest acceleration should be 35.06 m/s2 within 1.76 m. of magnetic track rail to equivalent the specified condition of the EURO NCAP (in Pedestrian protection). Pedestrian protection testing machine

2563