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All Journal Media Mesin: Majalah Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Review Pendidikan dan Pengajaran (JRPP) Education and Counseling Journal
Supriyono Supriyono
Universitas Muhammadiyah Surakarta
Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Other

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The Effect of the Ball Size on the Product Characteristics of Shaker HEBM to Produce Nano Particle from Bamboo Charcoal Supriyono Sastrowiyono
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 1 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i1.5761

Abstract

The objective of this research is to study the effect of ball size on characteristics of product of shaker high energy ball milling (HEBM) to produce nano particle from bamboo charcoal. A new shaker mechanism is developed. The characteristics of the particle are represented by particle size, surface morphology, and the substances presence in the product. Particle size analyzer (PSA) is conducted to have the particle sizes, whereas SEM and EDX are used to have surface morphology and substances presence in the products respectively. The mixtures of 11 gr of bamboo charcoal powder of 200 meshes and about 299 gr of steel ball are placed in vials. The vial is from stainless steel cylinder with 1  inch diameter and 120 mm length. The stroke of the shaker is 54 mm at increasing speed of connecting rod pulley for every 1 million cycles. The total number of cycle is 3 million. Therefore, the connecting rod speed of the first 1 million cycles is 300 rpm, the second is 333 rpm, and the third is 367 rpm. The steel ball sizes are  and  inch. PSA results indicate that there is no certain correlation between the steel ball size and particle size. The final shape of the particles is determined by fracture mechanism. The highest substance presence in the result is carbon and followed by silicon.
CHARACTERIZATION OF BAMBOO TUTUL CHARCOAL PARTICLE PRODUCED BY HIGH ENERGY BALL MILLING SHAKER TYPE S Supriyono; B Susilo
Media Mesin: Majalah Teknik Mesin Vol 20, No 1 (2019)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v20i1.7978

Abstract

The objective of this study is to characterize bamboo tutulcharcoal particles produced by High Energy Ball Milling (HBEM)shaker type.The HEBM process was conducted in the stainless steel vialsfor 2 million cycles at 900 motor RPM. The ball milling diameter was 1/4 inch made from steel.Therefore, perhaps the final particle sizewill be determined byempty space of the vial for the movement of the balls. In this study, the empty space is varied for 1/2, 1/3, 1/4, and 1/5 of vial volume. Particle Size Analyzer (PSA) is used to have the particle sizes and SEM-EDX is used to have surface morphology of the particle. The average final particle sizes are 547.8 nm, 522.9 nm, 422.7 nm, and 739.4 nm for 1/2, 1/3, 1/4, and 1/5 empty space of vial respectively. The surface morphologies of the particles are determined by fracture mechanism as they can be seen on the SEM results. Based on the results, it can be said that there is no correlation between the particle size and the empty space of the vial. As long as there is space for movement of the milling balls, the collision occurs and the reduction of the particle also happens.
REVERSE ENGINEERING BODY FENDER MOBIL ESEMKA RAJAWALI II DENGAN MEMBANDINGKAN HASIL PENGUKURAN DENGAN MENGGUNAKAN COORDINATE MEASURING MANUAL MACHINE DAN LASER SCANNERARTICULATED MEASUREMENT ARMS Akhmad Pujiono; Supriyono Supriyono; Joko Sedyono
Media Mesin: Majalah Teknik Mesin Vol 19, No 1 (2018)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v19i1.5811

Abstract

Total Incremental Method for Solving Nonlinear System of Equation Due to Plasticity of Reissner Plates with Boundary Element Method Supriyono Supriyono
Media Mesin: Majalah Teknik Mesin Vol 8, No 1 (2007)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v8i1.3098

Abstract

In this paper a total incremental method for solving nonlinear system equation due to plasticity of shear deformable plates is presented. The material is assumed to undergo small strains. The von Mises criterion is used to evaluate the plastic zone and elastic perfectly plastic material behaviour is assumed. An initial stress formulation is used to formulate the boundary integral equations. The domain integral due to material nonlinearity is evaluated using a cell discretization technique. Several examples are presented and comparisons are made to demonstrate the validity and the accuracy of the total incremental method to solve the nonlinear system of equation due to plasticity.
CHARACTERIZATION OF BAMBOO TUTUL CHARCOAL PARTICLE PRODUCED BY HIGH ENERGY BALL MILLING SHAKER TYPE S Supriyono; B. Susilo
Media Mesin: Majalah Teknik Mesin Vol 20, No 2 (2019)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v20i2.8534

Abstract

The objective of this study is to characterize bamboo tutul charcoal particles produced by High Energy Ball Milling (HBEM) shaker type. The HEBM process was conducted in the stainless steel vials for 2 million cycles at 900 motor RPM. The ball milling diameter was 1/4 inch made from steel. Therefore, perhaps the final particle size will be determined by empty space of the vial for the movement of the balls. In this study, the empty space is varied for 1/2, 1/3, 1/4, and 1/5 of vial volume. Particle Size Analyzer (PSA) is used to have the particle sizes and SEM-EDX is used to have surface morphology of the particle. The average final particle sizes are 547.8 nm, 522.9 nm, 422.7 nm, and 739.4 nm for 1/2, 1/3, 1/4, and 1/5 empty space of vial respectively. The surface morphologies of the particles are determined by fracture mechanism as they can be seen on the SEM results. Based on the results, it can be said that there is no correlation between the particle size and the empty space of the vial. As long as there is space for movement of the milling balls, the collision occurs and the reduction of the particle also happens.
THE EFFECTS OF PACK CARBURIZING USING CHARCOAL ON PROPERTIES OF MILD STEEL Supriyono Supriyono
Media Mesin: Majalah Teknik Mesin Vol 19, No 1 (2018)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v19i1.5812

Abstract

The aim of this research is to study the effects of pack carburizing using charcoal on properties of mild steel. The properties are represented by the results of microstructure, hardness test and tensile test.  The carburizing process was conducted in the temperature of 930oC which is the austenite temperature of the mild steel. The source of carbon was charcoal. The specimens were held for 2, 3 and 4 hours at the carburizing temperature. The carbon content of the raw amterial was 0.17%. The raw material was hypoeutectoid steel with ferrite and pearlite phases in its microstructure.  After the carburizing process, the microstructure can be divided into two zones e.i. case zone and core zone. The case zone consists of hypereutectoid, eutectoid, and hypoeutectoid sub-zone. The core zone is the same as raw material. The longer the holding time will result in the deeper the case zone and the stronger the material.
2D ELASTICITY ANALYSIS WITH BOUNDARY ELEMENT METHOD Supriyono Supriyono
Media Mesin: Majalah Teknik Mesin Vol 9, No 1 (2008)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v9i1.3159

Abstract

In this paper, a boundary element method for 2D elasticity analysis is presented. The formulations are also presented. Numerical integration is applied to solve the boundary integral equation obtained from the formulation. Quadratic isoparametric elements are used to represent the variation of a variable along an element. Several
KAJIAN PARTIKEL ARANG DAUN BAMBU TUTUL HASIL TUMBUKAN HIGH ENERGY BALL MILLING TIPE SHAKER MILL Yoyo Saputro; S Supriyono; Agus Dwi Anggono
Media Mesin: Majalah Teknik Mesin Vol 20, No 2 (2019)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v20i2.8530

Abstract

Arang daun bambu tutul sebagai kajian produk nanopartikel dan penghasil silica yang memiliki berbagai keunggulan dari segi sifat fisika dan kimia. Pada penelitian ini produksi nanopartikel menggunakan High Energy Milling (HEM) tipeshaker mill untuk memproduksi nanopartikel dari arang daun bambu tutul. Pada penelitian ini dilakukan uji PSA untuk menganalisa ukuran partikel, untuk menganalisa distribusi morfologi partikel dan komposisi kimia yang terkandung dalam material menggunakan uji SEM dan EDX. Siklus yang digunakan pada penelitian adalah 2 juta siklus dengan putaran motor listrik 1000 rpm, dan diameter bola baja 1/4 inchi. Tabung stainless steel berjumlah 4 dengan diameter tabung 2 inchi dan tinggi tabung 120 mm dengan perbandingan volume ruang kosong tabung yaitu 1:1, 1:2, 1:3, dan 1:4 dengan material. Penelitian ini bertujuan untuk mengetahui pengaruh volume ruang kosong tabung dan rata – rata diameter partikel, distribusi partikel, dan komposisi yang terkandung dalam partikel hasil tumbukan dengan alat shaker mill. Hasil penelitian ini menunjukkan bahwa volume ruang kosong tabung sangat berpengaruh pada mekanisme tumbukan. Dari uji PSA semakin besar volume ruang kosong tabung, semakin kecil ukuran partikel material yang dihasilkan. Hasil uji SEM dan EDX didapatkan unsur kimia karbon yang paling tinggi 68,47 % pada volume 1:1 ruang kosong tabung. Sehingga arang daun bambu tutul merupakan sumber potensi sebagai penghasil silica.
ANALISA ELASTISITAS DENGAN BOUNDARY ELEMENT Supriyono Supriyono
Media Mesin: Majalah Teknik Mesin Vol 16, No 2 (2015)
Publisher : Program Studi Teknik Mesin, Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/mesin.v16i2.1515

Abstract

Dalam tulisan ini, analisa elastisitas dengan  boundary element method disampaikan. Perumusan-perumusan boundary element method juga diperkeknalkan. Untuk menyelesaikan persamaan yang didapatkan integrasi numerik diterapkan. Elemen dari tipe Quadratic isoparametric digunakan untuk mereprentasikan variasi variable ynag tidak diketahui sepanjang elemen. Beberapa contoh aplikasi disampaiakn untuk menunjukan  keakurasian Boundary Element Method.
PENERAPAN MODEL DISCOVERY LEARNING UNTUK MENINGKATKAN KEAKTIFAN DAN HASIL BELAJAR PESERTA DIDIK DI SEKOLAH DASAR Arga Yudha Adhiprama; Supriyono Supriyono
Consilium: Education and Counseling Journal Vol 4 No 1 (2024): Edisi Maret
Publisher : Biro 3 Kemahasiswaan dan Kerjasama Universitas Abduracman Saleh Situbondo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36841/consilium.v4i1.4260

Abstract

Tujuan penelitian ini untuk meningkatkan keaktifan dan hasil belajar peserta didik menggunakan model pembelajaran discovery learning. Jenis penelitian ini menggunakan penelitian tindakan kelas (PTK) yang dilakukan dalam 2 siklus. Subjek penelitian adalah siswa kelas VI sebanyak 28 peserta didik yang terdiri dari 14 peserta didik laki-laki dan 14 peserta didik perempuan. Teknik pengumpulan data menggunakan teknik tes dan non tes, kemudian dilakukan analisis deskriptif kuantitatif dari data yang diperoleh. Penerapan model discovery learning menunjukkan hasil diantaranya dapat meningkatkan keaktifan dan hasil belajar peserta didik kelas VI SDN Karangasem 02 Surakarta terutama tema 7 dan tema 8. Hasil penelitian pada siklus 1 persentase keaktifan belajar siswa mencapai 79% dari 28 peserta didik. Sedangkan hasil belajar siklus 1 jumlah ketuntasan 75% atau 21 peserta didik, jumlah tidak tuntas 25% atau 7 peserta didik. Hasil penelitian pada siklus 2 persentase keaktifan belajar siswa mencapai 86% dari 28 peserta didik. Sedangkan hasil belajar siklus 2 jumlah ketuntasan 79% atau 22 peserta didik, jumlah tidak tuntas 21% atau 6 peserta didik. Dengan demikian penerapan model pembelajaran discovery learning selama pembelajaran dapat meningkatkan keaktifan dan hasil belajar peserta didik kelas VI SDN Karangasem 02 Surakarta pada pembelajaran tematik tahun pembelajaran 2023/2024.
Co-Authors Agus Dwi Anggono Ahmad Syafi’i Ahmad Syafi’i Akhmad Pujiono Anggun Citra Anggraeni Arga Yudha Adhiprama B Susilo B. Susilo Joko Sedyono, Joko Meilani Wulandari Meilani Wulandari Riska Mardiyah Rosa Kusuma Arfianti Siti Sumiati Vera Yunita Prihapsari Yoyo Saputro