Josef Hernawan Nudu
Program Studi Teknik Industri, Universitas Atma Jaya Yogyakarta Jl. Babarsari 43, Yogyakarta 55281

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ALGORITMA PENENTUAN TITIK PENCEKAMAN HOLE-BASED MODULAR FIXTURE Nudu, Josef Hernawan; Toha, Isa Setiasyah
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 10 No. 2 (2008): DECEMBER 2008
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (226.542 KB) | DOI: 10.9744/jti.10.2.112-123

Abstract

This article illustrates fixturing algorithm for determining clamping point of hole-based modular fixture. The proposed algorithm is based on the algorithm developed by Ariastuti et al. The previous algorithm could be applied for determining clamping point of dedicated or slot-based modular fixture but it can not be applied directly for hole-based modular fixture. Conversion of locators’ coordinate and clamping coordinate into coincident baseplate-coordinates and an approach for modeling the magnitude and action point of equivalent forces are proposed. This algorithm is designed for fixturing prismatic workpart having machining feature(s) being processed on a vertical milling machine. The machining features are hole, blind hole, pocket, slot, blind slot, step, and blind step. Three hypothetical worksamples were analyzed using Ariastuti’s algorithm and this new algorithm. The result shows that both algorithms have the same properties in terms of feasible fixturing and unfeasible fixturing on a single setup.The new algorithm gives coordinates that coincide with holes of related baseplate in feasible fixturing. Forces equilibrium during machining is the only aspect being considered for feasibity analysis. Fixture elements’ dimension, strength, and deformation have not been considered yet. Abstract in Bahasa Indonesia: Makalah ini memaparkan algoritma fixturing untuk penentuan titik pencekaman fixture modular jenis hole yang dikembangan dari algoritma Ariastuti et al. Algoritma Ariastuti et al. dapat digunakan untuk menentukan titik pencekaman dedicated fixture dan modular fixture jenis slot, namun tidak dapat diterapkan secara langsung pada modular fixture jenis hole. Algoritma usulan menambahkan satu tahapan berupa penyesuaian koordinat lokator dan klem yang bersesuaian dengan posisi lubang pada plat dasar modular fixture jenis hole. Algoritma yang diusulkan berbeda dalam hal penentuan besar dan titik tangkap gaya potong ekivalen, serta penentuan titik pencekaman yang dipilih. Penelitian dibatasi pada fixturing benda kerja prismatik yang memiliki feature hole, blind hole, pocket, slot, blind slot, step, dan blind step untuk pemesinan pada mesin milling vertikal. Fisibilitas fixturing ditentukan oleh kondisi kesetimbangan gaya selama proses pemesinan. Aplikasi algoritma usulan pada tiga buah benda uji hipotetis memberikan hasil yang setara dengan algoritma Ariastuti et al.; berupa kondisi fixturing fisibel atau tidak fisibel. Hasil kondisi fixturing yang fisibel adalah titik lokator dan klem yang bersesuaian dengan posisi susunan lubang pada plat dasar fixture modular untuk pemesinan benda kerja dalam satu kali setup. Algoritma yang dikembangkan belum mempertimbangkan kendala dimensi dan kekuatan elemen fixture serta deformasi. Kata kunci: fixture modular, fixturing, titik pencekaman
The Influence of Eco-Friendly Packaging, Emotional Branding, and Digital Customer Experience on Brand Preference of Health Products d'Ornay, Anastasia; Zakaria, Muhammad; Riyanti, Apriani; Mustafa, Fahrina; Wulandari, Ayu Ratna; Nudu, Josef Hernawan
Journal of Innovative and Creativity Vol. 5 No. 3 (2025)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v5i3.5617

Abstract

The core goal of the research is to determine the impact of green packaging, emotional branding, and digital customer experience on the selection of health products' brands. The main reasons for this study are the demand for green products, emotional connection with brands, and the migration of consumers from offline to online for information and purchases. The research employed a quantitative explanatory design with health product consumers being the sample population of 200 participants, who had online interaction with the brands and were selected through purposive sampling. The instrument of the study was initially evaluated for validity and reliability and then underwent classical assumption tests prior to the application of multiple linear regression analysis. Each of the three independent variables was found to have a major beneficial impact on brand preference. The coefficient of determination value shows that the model is capable of explaining the variations in brand preference. This study, when considering its theoretical implications, adds to the existing understanding of the topic of consumer behavior and modern marketing strategies in the health care sector. Additionally, the findings of the study provide a roadmap for companies to gain competitive advantage by incorporating eco-friendly packaging, upgrading emotional branding, and digitalizing experiences to facilitate brand preference creation more effectively.
The Influence Of Learning Management System Usability, Leadership Effectiveness And Information Transparency On Service Quality In Education: Penelitian Yani, Indri; Hendratni, Tyahya Whisnu; Nudu, Josef Hernawan; Putrianti, Flora Grace; Sukmarani; Aswadi, Dana
Jurnal Pengabdian Masyarakat dan Riset Pendidikan Vol. 4 No. 2 (2025): Jurnal Pengabdian Masyarakat dan Riset Pendidikan Volume 4 Nomor 2 (October 202
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jerkin.v4i2.4191

Abstract

The primary objective of this research is to measure the impact of a learning management system's (LMS) features, leadership effectiveness, and information openness on the quality of educational services. A quantitative explanatory approach with a sample of 200 students selected via purposive sampling was used for this research. The students who participated were those who had used an LMS for at least one semester and had interacted with the digital academic service system. Prior to conducting multiple linear regression analysis, the research tool was subject to a number of tests including validity, reliability, and classical assumptions. It was resulting that the three independent variables had a significant and positive impact on educational services. This research has made a theoretical contribution to the area of educational management in the digital age by identifying technology, leadership and transparency in information as essential in the process. The institutions can, as has been the case with research findings that have a practical nature, increase service quality by optimizing the LMS, reinforcing leadership, and providing clear and easily accessible information, as it is the case with research findings that have a practical nature.