จำนวน Repository ( 14 )

การพัฒนาวิชาชีพวิศวกรรมอย่างต่อเนื่อง
การพัฒนาวิชาชีพวิศวกรรมอย่างต่อเนื่อง

Continuing Professional Development for Engineers is any structured process or activity that enhances the competence and quality of a person necessary to perform a professional job. The continuing engineering profession is a useful tool for professionals. The objectives of the research is to find a short course approach for the continuous development of the engineering profession to meet the needs of industrial engineers in the current era to have knowledge and ability in technology continuously it is important that all engineers have to attend training to enhance their knowledge. Which the development of the knowledge of the engineer As part of the promotion of license for professional practice at the ordinary level and degree engineer Including the registration as an ASEAN Engineer and APEC Engineer.

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การลดเสียงรบกวนการเบรกจากผ้าเบรกด้วยเทคนิคการเสริมชั้นความหน่วง
การลดเสียงรบกวนการเบรกจากผ้าเบรกด้วยเทคนิคการเสริมชั้นความหน่วง

Nowadays brake pad is a one of products that plays a role in the automotive parts industry and directly affects safety. Therefore there are many designs of brake pad for product development. The technique of reinforcing the layer in brake pads is another option for developing such products. The objectives of this research are to solve the problem of noise from brake pads using the material layer reinforcement technique and raise the quality of brake pads to use in the industrial sector. As a result the prototype brake pads with reinforcement techniques by means of damping layer were performed. Consequently the experimental work reveals that the brake pads with damping layer technique for brake pads can reduce vibration and also brake noise at the same frequency at less 10 percent at braking speeds of 50 100 and 130 km/h. Besides this technique can be applied to the production of brake pads in the same formula. However the prototype brake pads is still in the product development phase for testing in a variety of conditions both temperature factors and usage period

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การศึกษาลักษณะทางกายภาพของจานเบรกรถจักยานยนต์ที่มีผลกระทบต่อประสิทธิภาพการเบรก
การศึกษาลักษณะทางกายภาพของจานเบรกรถจักยานยนต์ที่มีผลกระทบต่อประสิทธิภาพการเบรก

Nowadays a disc brake is one of important auto parts for motorbike cycle industry which effected directly to life safety. As the result this project aims to test the performance of the disc brake in order to study the physical disc brake that effects to braking distance and to be an alternative for testing the brake disc. Therefore the braking performance tester was designed and created in the single dynamometer which was not over 9.70•kgm2 as the moments of inertia of motorcycles. Regarding JASO T204:2001 this test was focused on the 3 different types of brake discs (i.e. normal type grooving type and perforated type). The tested temperature was at normal state of the brake disc temperature (60°C - 80 °C) and at high state (more than 100 °C). The braking force from 9.81N to 34.33N at master cylinder was tested. The result revealed that at normal temperature the braking performance of the three disc brakes (normal type grooving type and perforated type) was at 7.29 9.10 และ 9.50 m/sec2 per 1m2 of contact surface areas respectively. However the brake performance at high temperature was at 7.21 9.03 และ 9.46 m/sec2 per 1m2 of contact surface areas respectively. This result reveals that the most efficient disc brake at normal temperature was perforated type of disc brake which was 30.32% different from normal type of disc brake. Likewise; the perforated type of disc brake was the most performance disc brake at high temperature which was different from normal type of disc brake at 31.21%

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การศึกษาส่วนผสมที่เหมาะสมของโครงสร้างกันแรงกระแทกของรถยนต์จากกากผักตบชวาและแกลบสำหรับการชนคนเดินเท้า
การศึกษาส่วนผสมที่เหมาะสมของโครงสร้างกันแรงกระแทกของรถยนต์จากกากผักตบชวาและแกลบสำหรับการชนคนเดินเท้า

Recently the Thai industry has continually grown up and also plays a role to economic growth in the country which affects the many of automotive components to be in the market. While the degeneration and waste of automotive components had increased as well. Therefore a crash box is one of the automotive parts which damage from the accident. Consequently the researchers have created a prototype material to develop into the crash box to reduce the environment problem from automotive parts. The random mixture of water hyacinth and husk was attempted to up to 5 ingredients. By forming a solid cylinder and 200 mm of long was used as prototype of the crash box in this research. Thus the energy absorption using compressing test was attempted to by the universal testing machine. The results showed that using polymers as a binder with 50% of water hyacinth and 50% of husk was the better ability of energy absorption. Regarding this ingredient 1612444 J/m3 of the energy absorption was referred to indicate that is the best ability of energy absorption. It is probably reduce the severity of the impact in the event of pedestrian collision.

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