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PUSAT RISET DAN INOVASI NASIONAL UNIVERSITAS SAINS DAN TEKNOLOGI KOMPUTER Alamat: Jl. Majapahit No.304, Palebon, Kec. Pedurungan, Kota Semarang, Jawa Tengah 50199
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Jurnal Riset Rumpun Ilmu Teknik (JURRITEK)
Published by Pusat Riset dan Inovasi Nasional
ISSN : 28290178     EISSN : 2829016X     DOI : 10.55606
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT
Sub Rumpun TEKNIK SIPIL DAN PERENCANAAN TATA RUANG 1. Teknik Sipil 2. Teknik Lingkungan 3. Rancang Kota 4. Perencanaan Wilayah dan Kota 5. Teknik Pengairan 6. Teknik Arsitektur 7. Teknologi Alat Berat 8. Transportasi 9. Bidang Teknik Sipil Lain Yang Belum Tercantum Sub Rumpun ILMU KETEKNIKAN INDUSTRI 1. Teknik Mesin (dan Ilmu Permesinan Lain) 2. Teknik Produksi (dan Atau Manufakturing) 3. Teknik Kimia 4. Teknik (Industri) Farmasi 5. Teknik Industri 6. Penerbangan/Aeronotika dan Astronotika 7. Teknik Pertekstilan (Tekstil) 8. Teknik Refrigerasi 9. Bioteknologi Dalam Industri 10. Teknik Nuklir (dan Atau Ilmu Nuklir Lain) 11. Teknik Fisika 12. Teknik Enerji 13. Penginderaan Jauh 14. Teknik Material (Ilmu Bahan) 15. Bidang Keteknikan Industri Lain Yang Belum Tercantum Sub Rumpun TEKNIK ELEKTRO DAN INFORMATIKA 1. Teknik Elektro 2. Teknik Tenaga Elektrik 3. Teknik Telekomunikasi 4. Teknik Elektronika 5. Teknik Kendali (Atau Instrumentasi dan Kontrol) 6. Teknik Biomedika 7. Teknik Komputer 8. Teknik Informatika 9. Ilmu Komputer 10. Sistem Informasi 11. Teknologi Informasi 12. Teknik Perangkat Lunak 13 Teknik Mekatronika 14. Bidang Teknik Elektro dan Informatika Lain Yang Belum Tercantum Sub TEKNOLOGI KEBUMIAN 1. Teknik Panas Bumi 2. Teknik Geofisika 3. Teknik Pertambangan (Rekayasa Pertambangan) 4. Teknik Perminyakan (Perminyakan) 5. Teknik Geologi 6. Teknik Geodesi 7. Teknik Geomatika 8. Bidang Teknologi Kebumian Lain Yang Belum Tercantum Sub Rumpun ILMU PERKAPALAN 1. Teknik Perkapalan 2. Teknik Permesinan Kapal 3. Teknik Sistem Perkapalan 4. Teknik Kelautan dan Ilmu Kelautan 5. Oceanograpi (Oceanologi) 6. Bidang Perkapalan Lain Yang Belum Tercantum
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 317 Documents
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Pemanfaatan Piezoelektrik pada Tanggul Pengaman Jalan (Polisi Tidur) sebagai Sumber Energi Listrik Lampu Penerangan Jalan Ayu Fitriah Sapruddin; Alda Dwiyanti; Justin Gilbert Kude Songe
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 3 No. 2 (2024): Oktober : Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8120

Abstract

The increasing number of motor vehicles in Indonesia produces repetitive mechanical loads on road surfaces that are rarely converted into useful energy. This study designs and evaluates a piezoelectric energy-harvesting speed bump intended to support low-power street lighting. The prototype integrates 25 piezoelectric discs (50 mm diameter) connected in series, an AC–DC bridge rectifier, a 2.7 V/500 F supercapacitor for short-term storage, and a DC–DC step-up converter to charge a 12 V battery. Field tests used a motorcycle at speeds of 5, 10, and 15 km/h with rider masses of 48, 70, and 79 kg; each condition was repeated ten times and averaged. Output voltage, current, and electrical energy per pass were measured after rectification. Results indicate that higher speed and mass increase electrical output, with a peak energy of 0.021 J at 15 km/h and 70 kg and an estimated conversion efficiency of about 0.20%. After repeated charging cycles, stored energy powered a 12 V/20 W LED lamp for several minutes. The proposed integration of series piezoelectric elements with supercapacitor buffering and step-up regulation demonstrates a feasible micro-energy harvester for traffic-dense areas and provides a basis for durability and scaling studies. Future work addresses packaging, fatigue, and multi-vehicle loading.
Implementasi Fuzzy Logic Control Metode Mamdani pada Pengatur Nilai Ph Air dan Nutrisi Hidroponik Huban Kabir; Yusep Romario; Sadiana Putra
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8149

Abstract

In this study, a device was designed and implemented to control the water pH and nutrient density (concentration) in a hydroponic system using the Mamdani method of fuzzy logic, thus maintaining nutrient solution parameters within an optimal range for plant growth. This system relies on three input values ​​obtained from a water pH sensor, a nutrient TDS sensor, and a flow meter. These three sensors are used to control four peristaltic motors, each of which functions to increase and decrease the pH and nutrient levels in the solution. The speed of the peristaltic pump motor, when the water pH is set at 6.5 and the nutrient concentration is set at 700 ppm, is influenced by the difference between the sensor reading and the set point. The greater the difference, the higher the peristaltic pump motor speed. Conversely, the smaller the difference between the sensor reading and the set point, the lower the peristaltic pump motor speed. Furthermore, the amount of water flowing through the pipe also influences the peristaltic pump motor speed.
Analisis Kebutuhan Kapal Tongkang dan Tugboat pada Distribusi Crude Palm Oil (CPO) Shabrina Rifa; Juang Akbardin; Dwi Novi Wulansari
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8165

Abstract

This study aims to analyze the need for barges and tugboats in distributing Crude Palm Oil (CPO) in the West Papua region. The analysis is conducted based on three main aspects: the balance of supply and demand, ship operational costs, and shipping time, to determine the most efficient mode of sea transportation. The research method used is a quantitative approach by processing CPO distribution data owned by PT Kurhanz Trans in 2024. The results show that the combination of a 240-foot barge with a 5,000 HP tugboat is the most optimal alternative. This combination is able to balance cargo capacity, operational cost efficiency, and shipping time. The total operating cost of a 240-foot barge is recorded as lower than a 230-foot barge, with the same shipping time of 70 hours for a distance of 140 nautical miles. Thus, the 240-foot barge can be recommended as the best alternative to support the smooth distribution of CPO in the West Papua region efficiently and economically.    
Optimalisasi Penjadwalan Perbaikan Kapal X di PT XYZ Menggunakan Critical Path Method Revian Devo Aryton Putra; Yekti Condro Winursito
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8182

Abstract

Punctuality is a crucial factor in ship repair projects because it directly affects operational efficiency, project costs, and the utilization rate of shipyard facilities. Delays in work completion can lead to increased costs, disruption of ship operational schedules, and decreased shipyard productivity. Therefore, this study aims to analyze and optimize the repair scheduling of Ship X at PT XYZ using the Critical Path Method (CPM). The research data were obtained from the actual project schedule compiled using Microsoft Project software, including the duration of each activity and the dependency relationships between tasks. The analysis results show that the project has one main critical path with a total duration of 74 hours. Most activities are on the critical path with a float value of 0 hours, while the Non-Destructive Test Penetrant Testing activity has a time slack of 1 hour. The application of the CPM method has proven effective in identifying critical activities, improving schedule control, and supporting managerial decision-making in optimizing ship repair projects.  
Pembuatan Aplikasi Sistem Electronic Contractor Safety Management System (E-CSMS) Berdasarkan Pedoman CSMS PT. XYZ Maulana Harry Wiryanta; Wiryanta Wiryanta
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8185

Abstract

PT. XYZ faces administrative challenges in implementing the Contractor Safety Management System (CSMS), which has been managed manually from risk assessment and pre-qualification to contractor selection resulting in validation delays, document duplication, and limited monitoring. This study aims to: (1) identify the constraints of the manual CSMS at PT. XYZ; (2) design an electronic-CSMS (e-CSMS) application tailored to internal user needs; (3) analyze the contribution of e-CSMS to document management effectiveness; and (4) evaluate the design's alignment with the Occupational Health and Safety Management System (SMK3) principles as per Government Regulation No. 50 of 2012. The method employed is Research and Development (preliminary stage) using a descriptive qualitative approach through interviews, observations, and document studies. The design results include: (i) a unified digital form integrating procurement data input, risk assessment entries (severity and probability), and document upload and assessment for pre-qualification/selection in a single workflow; (ii) a monitoring dashboard with filtering and export functions; and (iii) internal access settings within PT. XYZ's HSSE portal. Functionally, this design addresses the main bottlenecks of the manual process by creating a more concise, structured, and documented verification workflow, thereby making document management more efficient and traceable. In terms of compliance, e-CSMS supports the implementation of SMK3 elements in the administrative domain of policy establishment, planning, and execution of OHS plans through consistent recording and verification mechanisms. Development recommendations include expansion to field implementation phases, automation of risk-level calculations, and an option for preliminary data entry by contractors with final verification remaining with the internal team.
Analisis Desain Perkerasan Jalan Kaku dengan Menggunakan Metode Bina Marga (MDPJ 2024 dan MKJI 1997): Studi Kasus: Jalan Ruas Sp. Brongkos – Ngembul. Kec Kesamben, Jawa Timur Ghany Setio Lusty; Hendrig Sudradjat; Hazairin Nikmatul L
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8186

Abstract

This study analyzes the design of the width and rigid pavement of the road on Sp. Brongkos – Ngembul, Kesamben District, Blitar Regency, along 4.5 km with an existing road width of 5 meters, rumija 16.8 meters. The surrounding area includes forestry, residential, plantation, industrial, and Jolosutro Beach tourist access, with increased traffic density during the holiday season and industrial operations. The method used is descriptive quantitative based on LHR and CBR data. The calculation of lane width using MKJI 1997 (Indonesian Road Capacity Manual) shows the need for widening of 3 meters per lane and 2 meters of shoulder. The rigid pavement design using the MDPJ 2024 method (Road Pavement Design Manual) consists of a layer of coarse-grained soil embankment, class A aggregate, lean concrete, and structural concrete with a thickness of 200 mm, 200 mm, 150 mm, and 200 mm, respectively. With the JPCP design, for the tie bar connection reinforcement with a diameter of 16 mm, a length of 700 mm, a distance of 70 cm, and a dowel with a diameter of 28 mm, a length of 45 cm, and a distance of 30 cm.
Evaluasi Kerusakan Lapisan Permukaan Jalan dengan Metode PCI dan Tindakan Preservasi di Jalan Pemda, Kapur, Kec.Sungai Raya, Kab.Kubu Raya Aprilia Putri Santoso; Eti Sulandari; Siti Mayuni
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8193

Abstract

Pemda Road in Kapur Village, Sungai Raya District, Kubu Raya Regency, West Kalimantan is a district road that functions as an alternative route connecting Tanjung Raya II Road and Kapur Village Main Road. Along with increasing traffic loads and limited maintenance, this road section has experienced various surface pavement distresses that reduce driving comfort and compromise road safety. This paper seeks to detect the types and severity levels of pavement damage and to determine appropriate preservation actions using the Pavement Condition Index (PCI) method. The research method involved a visual field survey by dividing the road into several segments, identifying damage types and severity levels, calculating PCI values, and determining suitable preservation measures based on the Asphalt Institute MS-17 guidelines. The results indicate that the flexible pavement section has a PCI value of 21.643, classified as very poor, with dominant damages consisting of potholes and edge cracking. Meanwhile, the rigid pavement section shows a PCI value of 94.960, which falls into the excellent category. The results of this research are anticipated to facilitate decision-making in determining maintenance priorities and road preservation strategies to improve pavement performance and extend service life.
Analisa Pengaruh Variasi Pengelasan Tungsten Inert Gas (TIG) terhadap Sifat Material Aisi 304 pada Sudu Runner Turbin Francis Ali Ali; Diaz Waluya Pratama
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8209

Abstract

This study aims to analyze the effect of Tungsten Inert Gas (TIG) welding parameter variations on the mechanical and metallurgical properties of AISI 304 austenitic stainless steel, which is widely used in construction and industrial applications due to its excellent corrosion resistance and joint strength. The research focuses on identifying the optimal welding current to minimize welding defects and enhance joint structural integrity. Welding current was varied at three levels, namely 100 A, 125 A, and 135 A, while other parameters such as welding speed, argon shielding gas flow rate, and electrode type were kept constant. Mechanical properties were evaluated through Micro-Vickers hardness testing conducted in the weld metal, Heat Affected Zone (HAZ), and base metal, as well as tensile testing to determine ultimate tensile strength and elongation. In addition, non-destructive testing using the dye penetrant method was performed to detect surface welding discontinuities. Metallographic analysis was carried out using optical microscopy following an etching process to observe grain morphology, grain size, and the formation of microstructural phases. The results are expected to demonstrate a correlation between increased heat input due to higher welding current and changes in mechanical properties and microstructure, particularly in the HAZ. This study provides practical guidance for determining optimal TIG welding parameters for AISI 304 to achieve high tensile strength, homogeneous hardness distribution, and a stable microstructure resistant to intergranular corrosion.
Pengembangan Media Pembelajaran Sistem Rem Hidrolik Sepeda Motor Untuk Meningkatkan Minat Belajar Mahasiswa Pendidikan Teknik Otomotif Universitas Muhammadiyah Purworejo Bagus Adi Pratama; Suyitno Suyitno; Aci Primartadi
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8219

Abstract

This study aims to develop learning media for motorcycle hydraulic brake systems through three main aspects. First, it examines the development procedures covering the planning, design, and implementation stages. Second, it evaluates the feasibility of the developed media for Automotive Engineering Education students at Muhammadiyah University of Purworejo in terms of effectiveness, ease of use, content relevance, and visual and functional appeal. Third, the study analyzes the effect of the media on improving students’ learning motivation, including learning interest, active participation, and persistence in understanding automotive materials. The research employed a Research and Development (R&D) approach involving purposively selected students from the Automotive Engineering Education program. Data were collected using questionnaires to assess media feasibility and student responses. Data analysis consisted of a normality test, homogeneity test, and a t-test to identify significant differences between pre- and post-intervention learning outcomes. The results indicate that the developed learning media is feasible and effective, and has a positive impact on students’ learning motivation and learning outcomes at Muhammadiyah University of Purworejo.
Analisis Tenaga Kerja dalam Meningkatkan Produktivitas Pekerjaan pada Pembangunan Perumahan Palm Vista Residence Naimatul Fikriyah; Kartono Wibowo; Abdul Rochim
JURNAL RISET RUMPUN ILMU TEKNIK Vol. 5 No. 1 (2026): April: Jurnal Riset Rumpun Ilmu Teknik
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurritek.v5i1.8246

Abstract

Labor productivity is a critical factor in construction project success as it directly affects time, cost, and work quality. In the Palm Vista Residence housing development project, delays in ground floor structural works indicate suboptimal human resource performance. This study aims to analyze labor productivity levels, identify factors influencing productivity, and formulate strategies to improve productivity in sloof beams, columns, and floor slab works. The research employs a quantitative approach with descriptive-analytical methods through field observations, questionnaires, and interviews. Labor productivity is measured using the work sampling method and the Labour Utilization Rate (LUR), while influencing factors are analyzed using multiple linear regression. Strategy prioritization for productivity improvement is determined using the Analytical Hierarchy Process (AHP). The results show that labor productivity is at a moderate level and is significantly influenced by work experience, managerial aspects, and coordination and planning. The priority strategies include improving worker competence and strengthening project management practices. These findings are expected to provide practical guidance for construction labor management to enhance efficiency and ensure timely project completion.

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