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Experimental Study of Mechatronic System On Control of Air Flow Temperature Asmara Yanto; Adriyan Adriyan; Rozi Saferi; M. Hanif Al Hafizh
Jurnal Teknik Mesin Vol 12 No 1 (2022): Jurnal Teknik Mesin Vol.12 No.1 April 2022
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LP2M) - ITP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21063/jtm.2022.v12.i1.39-46

Abstract

In this work, an experimental study of a mechatronic system on control of airflow temperature has been conducted to identify the characteristics of the system. The system is tested by several reference temperatures from the monitor panel that programmed on the computer. The measurement of the output temperature by the sensor that is expected to be the same as the reference temperature is also displayed on the same monitor panel. While the measurement of AC power consumption by an actuator in the form of a heater is carried out by measuring the AC voltage on the heater during control. This voltage is measured with a computer-based oscilloscope. Based on the test results, with the initial temperature around the room temperature and reference temperature, the system time constant can be identified. This time constant value is obtained based on the output temperature graph which is identical to the first-order system response. Thus, this experimental study succeeded in identifying the characteristics of the system in the form of a time constant and the system was identified as identical to the first order system.
Investigasi tegangan kerja pada pisau pencacah di mesin shredder-extruder dalam satu penggerak utama menggunakan Metode Elemen Hingga Adriyan Adriyan; Sufiyanto Sufiyanto; Marfizal Marfizal
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2269

Abstract

Plastic flakes from shredding processes are produced by tearing plastic wastes using shredder blades. During the shredding process, tear forces are the source of loading acting on the tip of the shredder blades. Hence, this research is performed to investigate the working stresses on the blades when subjected to the tear forces during the shredding process. Thus, the working stresses on those blades can be computed by applying the finite element method. In this research, the blades are modeled by two kinds of finite elements, namely the triangular plane stress element and tetrahedron element, with linear shape functions. As a result, the maximum stresses on the blades lie within the range of 49 to 52 MPa for both models. These maximum working stress are below the yield strength of the material used for manufacturing those blades, i.e.: ASTM A36 with 250 MPa of yield strength. Overall, it can be concluded that there are no significant discrepancies in the computed working stresses among the blades.
Mobility, Kinematic, Singularity, and Workspace Analysis of a Translational Parallel Manipulator with 2(RRPaRR)-PRRR Kinematic Chains Adriyan Adriyan; Indra Hasan; Deru Assadullah Assadullah Hanif; Daniel Rumahorbo; Bima Amrianto; Rahmad Illahiy
Jurnal Polimesin Vol 21, No 5 (2023): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i5.4075

Abstract

This article presents an asymmetric parallel manipulator with 2(RRPaRR)-PRRR kinematic chains. This manipulator aims to operate as a lower-mobility parallel manipulator with the pure translational motion of its platform. Therefore, a series of analyses are performed to fulfill this intention. First, the mobility analysis is performed by applying the Grübler-Kutzbach equation and the screw theory. Then, the kinematic, singularity, and workspace analysis are applied to analyze this PM. As  a result, the application of the screw theory for the configuration of its kinematic chains shows its mobility in a pure translational motion in space. Then, this manipulator has a closed-form solution for its direct kinematic problem expressed in a quadratic equation. By applying singularity and workspace analysis via visualization, the singularity-free workspace along the z-axis of its workspace can be identified. This can later be used as a useful workspace. Overall, the presented manipulator can be applied to a translational parallel manipulator
Penerapan Pendekatan Sains Data untuk Pemodelan Klasifikasi Desain Keamanan Rangka Sepeda Melalui Pembelajaran Mesin Otomatis Adriyan, Adriyan; Istana, Budi
JURNAL SURYA TEKNIKA Vol. 11 No. 1 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i1.7218

Abstract

Perkembangan terkini dalam desain kerekayasaan dilakukan dengan memadukan ranah kecerdasan buatan karena tersedianya data historis rancangan suatu objek, misalnya rangka sepeda. Berdasarkan data historis ini, sebuah model dapat dibangun untuk memperoleh keputusan desain berbasis data-driven. Untuk itu, kajian ini membahas perpaduan ini melalui pendekatan metodologi data sains dalam membuat sebuah model keputusan desain menggunakan pembelajaran mesin otomatis (automatic machine learning yang disingkat AutoML). Model yang dibangun merupakan model klasfikasi multi kelas dalam menentukan keamanan rangka sepeda dengan lulus atau tidaknya suatu rangka sepeda dalam dua jenis uji beban. Teknik exploratory data analysis diterapkan untuk menilai fitur-fitur yang digunakan dalam pemodelan. Dataset ini memiliki jumlah kelas yang propersinya tidak berimbang yang dinyatakan dengan rasio tak-seimbang sebesar 10.77. Model klasifikasi dilatih dengan bagian data latih melalui validasi silang stratified K-fold menggunakan algoritma XGBoost dengan parameter untuk nilai default-nya. Ada dua model yang dibangun berdasarkan data latih tanpa persiapan dan dengan persiapan data. Kedua model memberikan perfomansi yang tidak terlalu signifikan berbeda melalui nilai multi-class Matthews correlation coefficient. Namun, matriks konfusi menunjukkan bahwa model dengan persiapan data dapat lebih baik mengklasifikasikan kelas-kelas minoritas. Akhirnya, kajian yang dilakukan ini menjadi sebuah rujukan awal untuk pemodelan keputusan desain terkait keamanan pada rangka sepeda.
Representasi Aljabar dan Geometri Interaktif dalam Permasalahan Kinematika Invers PRoM-120 Adriyan, Adriyan
JURNAL SURYA TEKNIKA Vol. 11 No. 2 (2024): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v11i2.8288

Abstract

PRoM-120 merupakan manipulator paralel ruang dengan derajat kebebasan tiga yaitu satu gerakan translasi dan dua gerakan rotasi pada end-effector-nya. Manipulator ini disusun oleh rantai kinematika 2(PRU)-PRS, dengan sambungan aktif berupa aktuator linier. Kajian yang disajikan dalam manuskrip bertujuan untuk menentukan jawab kinematika inversnya dengan menerapkan penyelesaian secara aljabar dan geometri interaktif. Penyelesaian secara aljabar memberikan jawab analitik tertutup kinematika invers. Sementara itu, penggunaan geometri interaktif melalui perangkat lunak GeoGebra dilakukan dengan menempatkan objek geometri seperti titik, garis, lingkaran, poligon, pada ruang kerjanya terlebih dahulu. Selanjunya, korelasi antar objek-objek ini dapat diekplorasi berdasarkan sifat-sifat geometri antar objek-objek ini, seperti perpotongan atau persinggungan. Sebagai konsekuensinya, jawab kinematika invers merupakan hasil ekplorasi sifat-sifat geometri antar objek geometri dalam bentuk titik potong atau titik singgung. Dengan demikian, metode geometri interaktif ini menghasilkan jawab dan visualisasi kinematika invers secara bersamaan tanpa harus menemukan jawab tertutupnya.
Penyelesaian Kinematika Langsung Manipulator Paralel Bidang 3-RRR Secara Eksak Menggunakan Open Source Computer Algebra Software: SymPy Adriyan, Adriyan
JURNAL SURYA TEKNIKA Vol. 9 No. 2 (2022): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v9i2.4458

Abstract

Penentuan jawab kinematika langsung manipulator paralel merupakan hal yang menarik untuk dikaji karena kompleksitas matematisnya. Artikel ini menyajikan penyelesaian eksak permasalahan kinematika langsung manipulator paralel bidang 3-RRR melalui pemanfaatan perangkat lunak aljabar komputer dengan kode terbuka: SymPy. Prosedur penyelesaian secara simbolik diimplementasikan ke dalam sebuah fungsi python melalui penggunaan pustaka SymPy secara ekstensif. Melalui fungsi ini akan dikalkulasi jawab kinematika langsung manipulator secara numerik untuk nilai konstanta kinematik dan besar sudut input pada sambungan aktif. Hasil pengujian untuk suatu dimensi konstanta kinematika manipulator ini menunjukkan bahwa terdapat dua akar-akar ril penyelesaian kinematika langsungya. Dua akar ril ini mengindikasikan bahwa manipulator memiliki dua modus rakitan kinematika langsung yang berbeda dengan modus rakitan untuk jawab kinematika invers.
Identifikasi Parameter Modal Model Bangunan Dua Lantai Menggunakan Metode Covariance-driven Stochastic Subspace Identification Adriyan, Adriyan
JURNAL SURYA TEKNIKA Vol. 12 No. 1 (2025): JURNAL SURYA TEKNIKA
Publisher : Fakultas Teknik UMRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37859/jst.v12i1.9310

Abstract

The modal parameters identification is a crucial part for designing and monitoring of a structure. This research is aimed to identify natural frequency and damping ratio of a lab-scaled two-story building model as a structure-under-test (SUT). The identification applies an operational modal analysis (OMA) technique, leveraging an algorithm of covariance-driven stochastic subspace identification (SSI-Cov) within PyOMA2 libraries. The SUT is subjected to random excitations using pseudo random signals within 0.1-25 Hz frequency range. The acceleration responses were sampled at 7.5 ms rate for 1 minute at each floor. Consequently, two modes with frequencies 2.2384 Hz and 5.9220 Hz are successfully identified below 25 Hz. These two modes yield 0.0135 and 0.0069 of damping ratios, respectively. These findings are compared to those of other algorithms that demonstrated a satisfactory identification of natural frequencies. However, a significant difference emerges in the identified damping ratios, particularly with regard to the second mode.
SOSIALISASI DAN IMPLEMENTASI DESAIN BESAR OLAHRAGA DAERAH (DBOD) KEOLAHRAGAAN KABUPATEN CIANJUR Rahadian, Adi; Afriyuandi, Asep Ramdan; Pratama, Andi Kurniawan; Sungkawa, Muhamad Guntur Gaos; Amalia, Eneng Fitri; Adriyan, Adriyan; Ramdani, Muhammad Rafly; Erlangga, Ariel; Julianto, Fadli Rahman; Fadilah, Tiar; Rustandi, Beny
MAJU : Indonesian Journal of Community Empowerment Vol. 2 No. 4 (2025): MAJU : Indonesian Journal of Community Empowerment, Juli 2025
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/maju.v2i4.1587

Abstract

The socialization and implementation of the Desain Besar Olahraga Daerah (DBOD) is a strategic step in supporting structured, sustainable, and locally-based sports development. Cianjur City, as part of West Java Province, has the potential of human resources, culture, and geography that support sports development at both the participatory and achievement levels. However, challenges remain in sports governance, limited infrastructure, low synergy among stakeholders, and the absence of a comprehensive long-term planning document. Through this activity, it is hoped that a shared understanding of the direction and objectives of the DBOD will be created, while also encouraging the active involvement of local governments, educational institutions, sports organizations, and the community. The main objectives of this activity are to socialize the concept and content of the DBOD, increase stakeholder capacity, and formulate implementation strategies that are appropriate to regional characteristics. The results of this activity are expected to strengthen the regional sports ecosystem and serve as a reference in the planning, implementation, and evaluation of sports programs in Cianjur City in a sustainable.