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Hatuwe, Mohammad Rusdy
Fakultas Teknik UPN "Veteran" Jakarta
Electrical & Electronics Engineering Engineering

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UJI “KETAHANAN LELAH DAN PENURUNAN GAYA PEGAS “ KATUP KOMPRESI AKIBAT “BEBAN OPERASI” PADA KATUP MOTOR DIESEL OUTPUT RATED 400 kW. Djaya, Yuhani; Hatuwe, Mohammad Rusdy
Bina Teknika Vol 11, No 2 (2015): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Major role in the valve spring Diesel 4 strokes is able to guarantee the valve open and closed positions without loss of engine compression. Therefore, the spring must be able to maintain the style required by the valve in accordance with the needs of its operations. When the spring force reduction operations over the threshold, then the spring will be malfunctioning. Before this happens, the spring should be replaced or restored. Meanwhile, the replacement with a new one because it failed to cause unplanned downtime. To balance the needs of utilities and prevention of failure (downtime) is required prediction faill replacement, and therefore the rate of decline in the spring force is directly related to the characteristics possessed by every spring, then to determine the rate of decrease in the valve spring force necessary to test fatigue characteristics. To achieve these objectives, characteristics and fatigue testing is done with spring material Goodman line approach. These tests include the identification of test material in the form of a test spring spring material chemical composition and hardness test; namely to determine the tensile strength limit in the diagram Heigh and criteria preset limit or unpreset spring tired. Next proceed to test the rate of decrease in the spring force on the cyclic loading which is the subject of this study, in which the rate of decrease in the spring force test due to cyclic done to reach the threshold spring force on the round number above 107. The test results showed that the decrease in the spring force caused by the spring force on the rate of decline of about 6% cyclic loading is at about 300 hours of operating hours, the next spring force experienced stability.
PEMBUATAN HULL PERAHU IKAN CADIK FIBER GLASS SKALA KECIL BAGI MITRA KELOMPOK NELAYAN Marasabessy, Amir; Nur, Iswadi; Hatuwe, Mohammad Rusdy
Bina Teknika Vol 12, No 2 (2016): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Event Service to the community for the partner group of fishermen village of Caringin District of Labuan Pandeglang in Banten Province aims to provide training and manufacturing miniature hull fishing boat outrigger fiber glass so that partners fishermen groups can manufacture fishing boats outrigger made of fiber glass are actually independently as an attempt to divert outrigger fishing boats from wood to glass fiber materials for the development of the fishing fleet in order to maintain/increase the fish catch in order to improve the standard of living to a better direction. The method used in the manufacture of miniature outrigger fishing boat fiber glass in the form of a lecture following the discussion/question and answer and applicative training with the involvement of partner group of fishermen. Plan activities that will be done in the implementation of manufacturing miniature hull fishing boat outrigger fiber glass that provides counseling by introducing wood and fiber glass as well as equipment to be used for the manufacture of hull miniature fishing boats outrigger fiber glass, the composition of the fiber glass to see the standardization of the mixture and training manufacture of molded semi parmanen which continued with casting hull miniature outrigger fishing boats.
UJI PREDIKSI UMUR KEANDALAN OPERASI RADIAL BALL BEARING PADA MOTOR DIESEL SINGLE CYLINDER DENGAN PENDEKATAN AMBANG BATAS KEAUSAN Hatuwe, Mohammad Rusdy; Djaja, Yuhani
Bina Teknika Vol 12, No 2 (2016): Bina Teknika
Publisher : Fakultas Teknik UPN "Veteran" Jakarta

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Abstract

Factually where the bearingss are not functioning properly makes the performance of the entire system will decrease or can not work properly. In this study, the wear test data that will be used is the data for the operating hours of 100 hours, 200 hours, 300 hours, 400 hours and 500 hours and the first converted into a linear function to obtain a threshold of wear of each specimen. In accordance with the objectives to be achieved in this study was to determine the relationship between the limits hours of operation and wear limit set maximum ball bearings manufacturer. The data used in this study is through the mechanism of experimental tests on Diesel engines Yanmar 15 HP, 1700 RPM using 3 specimens to be validated. Furthermore, these data will be generated from a particular distribution which will provide an overview wear limit as a function of operating hours.
Co-Authors Amir Marasabessy Djaya, Yuhani Nur, Iswadi Yuhani Djaja, Yuhani