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All Journal Jurnal Energi Dan Manufaktur Simetris Jurnal Simetris E-Dimas: Jurnal Pengabdian kepada Masyarakat Jurnal Teknik Mesin International Journal of Engagement and Empowerment (IJE2)
Suryanto, Hendri
Sekolah Tinggi Teknologi Ronggolawe
Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Journal : Simetris

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Studi Numerik Gerakan Mainan Mekanik Monobike Eva Hertnacahyani Herraprastanti; Hendri Suryanto .; Suluh Jatmiko .
SIMETRIS Vol 13 No 2 (2019): SIMETRIS
Publisher : Sekolah Tinggi Teknologi Ronggolawe Cepu

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Abstract

In today's development where there are several applications to design a product, where in the design of a product, not only can physically design the components, but also can design the desired movements. In order to produce product movements as desired, when designing it must first choose the right mechanism and perform synthesis and analysis of kinematics. To make a toy move, the components which make up the toy are needed by following a certain mechanism. In this study the mechanical toy that will be analyzed for its movements is Monobike. In the monobike there is a Slider Crank mechanism that results from the paddling of the foot which rotates the pedal and moves up and down. The up and down pedal will turn the second wheel and cause the body of the doll holding the fan to move up and down. The research objective is to numerically analyze component movements in Monobike mechanical toys which include linear displacement, velocity and acceleration analysis. In this research, a monobike mechanical toy that mimics human activities in pedaling a bicycle is determined. The methodology in this research is as follows: a) make a kinematic diagram, b) determine the position vector of each link, c) derive the equation, d) make the GNU Octave code. Based on the results of the study concluded that a numerical study with the GNU Octave can be done to analyze the kinematic motion of a machine. Linear displacement on link 3 has the furthest displacement of 18.38 mm, and one cycle of movement requires 120 seconds. The maximum linear speed of the Monobike mechanical toy is 36.2 mm / sec. While the maximum linear acceleration of a monobike mechanical toy is 172.3 mm / sec. GNU Octave is a freeware application that is no less reliable than the Matlab application in analyzing the kinematics of a machine.
Analisis Potensi Daya Mekanis Yang Dihasilkan Konverter Energi Metode Bandul Vertikal Di Air Tenang Hendri Suryanto; Drajat Indah Mawarni
SIMETRIS Vol 13 No 2 (2019): SIMETRIS
Publisher : Sekolah Tinggi Teknologi Ronggolawe Cepu

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Abstract

Hydroelectric power plants have been widely developed. One that is mostly built especially in mountainous or highland areas is power plants that use falling water energy or river water currents to turn turbines connected to generators. In coastal areas today power plants have been developed using abundant sea waves known as the Wave Energy Converter (WEC), with one of the methods used is the pendulum method. For areas in the lowlands and far from the coast but there are bodies of water such as lakes, swamps and rivers with slow flow, which are large enough, the potential of the water has not been used to drive electricity generation and the question arises whether it can be utilized to drive the converter. For this reason, it is necessary to research the use of calm water to drive the converter. By adopting the WEC technology used in ocean waves, the vertical pendulum method above the pontoon was chosen in this study, which according to the author's consideration is simpler than the other methods. The design of the converter made was a vertical pendulum mounted on a flat pontoon by adding components in the form of a barrier pair to make water surging continuously under the pontoon so that the pendulum swings continuously. In this study the observed variable was the power produced by the converter by varying the arm length from 0.2 to 0.3 m with a pendulum load varying from 0.5 to 1 kg. Theoretical analysis showed the results of greater mechanical power produced by using a larger pendulum mass. And the faster rotation of the pendulum shaft was produced by using the shorter pendulum arm.
ANALISIS KEKUATAN STRUKTUR HYDRAULIC LIFTING MACHINE DENGAN MENGGUNAKAN METODE ELEMEN HINGGA Ahmat Saebudin; Hendri Suryanto; Eva Hertnacahyani Herraprastanti
SIMETRIS Vol 14 No 2 (2020): SIMETRIS
Publisher : Sekolah Tinggi Teknologi Ronggolawe Cepu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51901/simetris.v14i2.138

Abstract

Hydraulic Lifting Machine merupakan jenis alat angkat yang didesain untuk memindahan barang ditempat yang relatif sempit. Dalam mendesain suatu alat selain fungsi dan kegunaannya kekuatan struktur merupakan salah satu aspek yang sangat penting untuk diperhatikan. Struktur tersebut haruslah mampu untuk menanggung beban yang timbul saat beroperasi dan memberikan keamanan bagi penggunanya dari kegagalan struktur. Oleh sebab itu tujuan dari penelitian ini adalah untuk menganalisis kekuatan struktur Hydraulic Lifting Machine dengan menggunakan metode elemen hingga. Berdasarkan hasil dari simulasi yang telah dilakukan dimana nilai tegangan resultan dan defleksi maksimum yang timbul pada struktur Hydraulic Lifting Machine yaitu pada beban kerja 100 kg tegangan resultannya sebesar 90,62 MPa dengan defleksi maksimum 4,39 mm, pada beban kerja 250 kg tegangan resultannya sebesar 218,51 MPa dengan defleksi 10,71 mm, pada beban kerja 500 kg tegangan resultannya sebesar 431,68 MPa dengan defleksi 21,25 mm, pada beban kerja 750 kg tegangan resultannya sebesar 644,84 MPa dengan defleksi 31,79 mm, dan pada beban kerja maksimal 1000 kg tegangan resultannya sebesar 858 MPa dengan defleksi 42,33 mm. Berdasarkan pada peraturan BS-5950 Structure Use of Steelwork in Building, nilai batas defleksi maksimumnya tidak boleh lebih dari 7,778 mm. Sedangkan untuk batas tegangan resultannya berdasarkan peraturan Allowable Stress Design (ASD) untuk dinyatakan aman adalah sebesar 149,7 MPa. Sehingga dapat disimpulkan bahwa struktur Hydraulic Lifting Machine layak digunakan dengan beban kerja maksimal 100 kg dengan angka safety factor 2,5. Kata kunci : Crane, Metode Elemen Hingga, Tegangan Von Mises.
Co-Authors Ahmat Saebudin Drajat Indah Mawarni Eva Hertnacahyani Herraprastansi Gunawan, Helmi Mochamat Slamet Riyadi Muhamad Najib Mubarok Sarip Sarip Sarip Sarip Sarip, Sarip Suluh Jatmiko Wahyusari, Retno