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All Journal Paduraksa : Jurnal Teknik Sipil Universitas Warmadewa Kurva S : Jurnal Keilmuan dan Aplikasi Teknik Sipil Dinamika Bahari: Journal of Maritime Dynamic Jurnal Ekologi, Masyarakat dan Sains Bulletin of Computer Science and Electrical Engineering (BCSEE) SELODANG MAYANG Journal of Metallurgical Engineering and Processing Technology Teknik: Jurnal Ilmu Teknik dan Informatika International Journal of Advanced Science and Computer Applications Jurnal Sintesis: Penelitian Sains, Terapan dan Analisisnya Jurnal Rivet: Riset dan Invensi Teknologi Journal of Innovation Research and Knowledge Elektriese: Jurnal Sains dan Teknologi Elektro Nusantara Civil Engineering Journal Media Bina Ilmiah Journal of Railway Transportation and Technology OKTAL : Jurnal Ilmu Komputer dan Sains Journal of Research and Inovation in Civil Engineering as Applied Science Journal of Science and Education Research Sainstech Nusantara Research of Scientia Naturalis
Aco Wahyudi Efendi
Civil Engineering, Faculty Of Engineering, Tridharma University Balikpapan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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Analysis of Floating Mooring Buoy as Platforms at Sea Aco Wahyudi Efendi
Dinamika Bahari Vol 4 No 1 (2023): May 2023 Edition
Publisher : Politeknik Ilmu Pelayaran Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46484/db.v4i1.361

Abstract

Analysis of the buoyancy of this platform for use in mid-ocean land survey operations where this platform is loaded with the weight of the tools and workers on the platform. The purpose of this research is to describe the buoyancy of the mooring buoys. The research was conducted by calculating the capacity and weight of each material used and the buoyancy of the buoy to be used as a platform for land surveys in mid-ocean, the ability of seawater to shift the size of the pontoon to be used as a platform and calculate the load on the pontoon itself to obtain the buoyancy value of the pontoon. The ability of the strapping between the pontoon and the anchor was calculated to anticipate unstable pontoon motion and must have a stress capability that exceeds the stress experienced when the pontoon is hit by a wave. The tension in the chain is greatest force is assumed, namely the force of the ballast. When the earthworks pontoon capacity is used as mooring buoy by estimating the total weight of the earthworks pontoon capacity, it is still in a semi-floating condition, although under certain conditions it will drop to as much as 95% of the estimated buoyancy pressure capacity of the mourning buoy.
PEMODELAN PENURUNAN TANAH DI IBU KOTA NEGARA NUSANTARA MENGGUNAKAN ANALISIS NUMERIK METODE ELEMEN HINGGA LISA V.8 Aco Wahyudi Efendi
PADURAKSA: Jurnal Teknik Sipil Universitas Warmadewa Vol. 12 No. 1 (2023)
Publisher : Program Studi Teknik Sipil, Fakultas Teknik dan Perencanaan, Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22225/pd.12.1.5643.21-29

Abstract

The IKN area is dominated by hilly areas and broad plains, Seeing the various soil characteristics and varying land elevations, disasters such as landslides and land subsidence often occur. This study validates the results of LISA against a geotechnical analysis program that is very often used and specifically for geotechnical software. It is hoped that the results of this study can contribute to the geotechnical world, especially to become a new treasure using the finite element method LISA. Forr the point of view the settlement that occurs is 0.0623 meters, where at analysis using geotechnical software, the settlement that occurs at the same point in the review is 0.0633 meters, there is an insignificant difference with a ratio of 1.016 from the results of the geotechnical software with the results of LISA V.8 FEA.
Desain Kandang Sperma Ideal untuk Sapi menggunakan LISA V.8 FEA Aco Wahyudi Efendi
Jurnal Sintesis: Penelitian Sains, Terapan dan Analisisnya Vol 4 No 1 (2023): Juni 2023
Publisher : Fakultas Sains, Teknologi, dan Analsisi Institut ilmu Kesehatan Bhakti Wiyata

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56399/jst.v4i1.71

Abstract

Kandang yang baik akan memberikan kualitas ternak yang baik pula. Kualitas semen sapi limusin dan simental yang dipelihara dalam kandang tunggal lebih baik dibandingkan dengan yang dipelihara dalam kandang ganda. Untuk mendapatkan kualitas kandang yang baik juga perlu memperhatikan kekuatan bahan kandang agar tidak mudah rusak dan membuat ternak tidak nyaman. Penelitian ini bertujuan untuk mengetahui kekuatan struktur kandang ternak untuk memberikan kenyamanan dan juga untuk membuat kandang tanah tua yang khas. Pada penelitian ini peneliti melakukan pemodelan geometrik kandang sperma sapi, sesuai dengan pemodelan ini ditentukan bahan yang digunakan untuk mendapatkan nilai parameter dari masing-masing bahan tersebut, peneliti juga mengumpulkan data beban hidup berupa bobot ternak dan aktivitas di lapangan. Tegangan-tegangan yang terjadi pada dampak beban struktur kandang dari ternak yang mengamuk selama proses dan atau menuju kandang, terlihat bahan yang digunakan sangat baik, sehingga dapat digunakan sebagai kandang sperma khas dari ternak dengan mengikuti ukuran yang sesuai menurut studi.
Simulasi Rona Zonasi Dampak Paparan Kebisingan Menggunakan SURFER Ir. Aco Wahyudi Efendi, ST., MT
OKTAL : Jurnal Ilmu Komputer dan Sains Vol 1 No 02 (2022): OKTAL : Jurnal Ilmu Komputer Dan Sains
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

 Dalam pembangunan infrastruktur PLTD Senayan 101 MW dalam proses perencanaan hingga tahap operasional kegiatan PLTD, kondisi lingkungan untuk terjadinya dampak penting yaitu dampak kebisingan yang terjadi akibat pengoperasian mesin harus diperhatikan. Mengingat dalam ruang lingkup Upaya tersebut, PLTD Senayan sedang melakukan studi kebisingan untuk mengetahui dampak pengoperasian PLTD Senayan 101 MW terhadap kawasan sekitarnya. Pada pedoman paparan kebisingan (NAB-Noise) berdasarkan Lampiran II Keputusan Menteri Tenaga Kerja No. Kep-51/MEN/1999 tentang Nilai Batas Faktor Fisik Di Tempat Kerja dan Tata Tertib Menteri Ketenagakerjaan Negara Lingkungan Hidup No. 48 Tahun 1996 tentang Baku Tingkat Kebisingan. Terlihat pada bahwa area kebisingan hingga ke area pemukiman dengan nilai kebisingan diatas 70 db, namun setelah dipasang barrier setinggi 6 meter dengan area imbasan kebisingan berkurang pada area pemukiman yaitu menurun hingga di bawah 70 db bisa dilihat pada gambar 2 dari rona pada daerah pemukiman sudah berwarna hijau dan bernilai di bawah ambang batas., bisa dilihat imbas kebisingan membias kearah sambaing akibat dari pemasangan barrier tersebut, dimana sebelumnya pada imbasan kebisingan diwilayah tersebut nilai kebisingan masih diambang batas atas. Namun imbas kebisingan akan benar-benar berkurang jika barrier terpasang mengeliling dari area sumber kebisingan atau area mesin.
The Settlement Behavior Using Replacement Embankment with Mortar Foam and Geofoam using LISA FEA Aco Wahyudi Efendi
Nusantara Civil Engineering Journal Vol 2 No 2 (2023): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/nuce.v2i02.484

Abstract

The IKN area, especially in the dock and stockyard construction area, is in an area with soft surface soil and requires several options for handling the stockyard area with several materials that are being widely used and easy methods and provide economic value in development. The use of geoform can increase the CBR value of native soil and the use of geofoam as embankment material provides a higher safety factor value with a smaller deformation value besides that the foam mortar material contributes to a small decrease and stress on the surface of the native soil. This study provides a behavioral review of the vertical settlement and stresses that occur in the soil and gives special behavior to the Geofoam material in the presence of hydrostatic forces. The largest settlement that occurred was 0.0961 m on the surface of the foam mortar, while on the existing soil surface a settlement of 0.0288 m occurred, while the largest settlement that occurred was 0.04254 m on the surface of the geofoam, while on the existing soil surface a settlement of 0.0277 m occurred.
Behavior of welded joints on the roof truss of KOJK Office using LISA V.8 FEA Aco Wahyudi Efendi
Journal of Metallurgical Engineering and Processing Technology Vol 5, No 1 (August 2024)
Publisher : Universitas Pembangunan Nasional "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v5i1.12020

Abstract

Welded joints play a crucial role in the structural integrity of buildings, particularly in supporting heavy loads and resisting various forces such as wind, seismic, and gravitational loads. This research was carried out by identifying the stresses that occur in the welded joints of the truss trusses of the roof of the KOJK Central Java building, with initial analysis conditions of rigid and stiff connections, and second conditions with conditions that occur according to field findings, where the joints are non-standard and there are several holes due to welding. not perfect. Modeling analysis uses Finite Element Analisys software, namely LISA V.8 FEA (License), to obtain the stress behavior that occurs in the roof truss elements of KOJK Central Java. From the results of analysis and modeling by making two conditions, namely the condition of welding joints according to standards and welding joints under field conditions. The stress ratio at the weld joint is 1.351 and the stress ratio at the truss pull rod is 1.054.
Characteristic behavior of soil using bacterial biogrouting with LISA FEA V.8. Aco Wahyudi Efendi
International Journal of Advanced Science and Computer Applications Vol. 3 No. 1 (2024): March 2024
Publisher : Utan Kayu Publishins

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47679/ijasca.v3i1.47

Abstract

The increasingly widespread use of micro-bacteria in research to improve soil characteris-tics in the world of construction and also provide a significant increase in soil carrying ca-pacity so that this kind of research makes a very good contribution where the material and mixing object are natural materials, namely in the form of bacteria. This study used the finite element method with the help of LISA V.8 FEA (Li-cense), a finite element method software package, to obtain the stress arising from existing soil ma-terial with soil material that has been mixed with mycobac-teria or the biogrouting method. According from the results of the analysis using numerical analysis using the finite el-ement method LISA V.8 FEA program, it can be seen that there is a reduc-tion in the oc-currence of settlement after adding the two bacteria which have been aged for 30 days with a reduction in soil settlement of 2.9-2.27 mm de-spite an increase in stress. ranging from 58.3 to 69.4 kN/m2.
Behavior Analysis of Deformation Changes After Sagging on The Telaga Abadi Suspension Bridge Efendi, Aco Wahyudi
Nusantara Civil Engineering Journal Vol 1 No 2 (2022): Nusantara Civil Engineering Journal
Publisher : Civil Engineering Dept, Balikpapan State Polytechnics

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (877.193 KB) | DOI: 10.32487/nuce.v1i1.389

Abstract

The occurrence of changes in the location and height of the tide at the time of execution that exceed the planning conditions and disrupt the flow of municipal shipping. For this reason, the suspension bridge chamber was upgraded in order to create a traffic-free area opposite the free threshold. The results of the manual analysis taking into account the labor force due to the bridge steps, so that the real value of the bridge chamber is obtained to obtain the ideal deformation of the bridge working load. The ability of the bridge state to change the deformation results from this evaluation. The behavior of the four conditions was significantly different, namely the SDL forward state, in which the horizontal force that occurred in this state increased, but the deflection decreased by up to 200%, whereby in the f0 forward state was 0.16 meters , but in the SDL forward state the horizontal force only increased with a deflection of 0.05 meters. However, the overall result is that the stress states that occur are still below the limit or permissible conditions, based on the stress-strain curve of the cable material, the stress under operating conditions is still in the elastic range of the material.
APPLICATION OF CHATGPT IN THE ANALYSIS OF INTERNAL FORCES OCCURRING IN SIMPLE BEAMS USING LISA V.8 FEA Efendi, Aco Wahyudi
Selodang Mayang: Jurnal Ilmiah Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir Vol. 10 No. 1 (2024): JURNAL SELODANG MAYANG
Publisher : Badan Perencanaan Pembangunan Daerah Kabupaten Indragiri Hilir Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47521/selodangmayang.v10i1.313

Abstract

ChatGPT (Chat Generative Pre-trained Transformer, literally Trained Chat Generative Transformer) is an artificial intelligence chatbot in the form of a generative language model that employs transformer technology to anticipate the likelihood of the next sentence or word in a conversation or text command. The increasing use of ChatGPT in all scientific lines has a positive impact as in some previous research results. In this research, we will apply the use of ChatGPT in the field of structural engineering by analyzing a steel portal due to lateral loads which will produce the drift value that occurs by validating it using the finite element analysis program LISA V.8 FEA (license) and against manual calculations. it is hoped that this research can provide satisfactory results as in previous research in other engineering and social fields. The research looked at the results and data processing outputs, as well as the comparison of the three methodologies, which were manual analysis, ChatGPT, and the Finite Element Method. Because the value of manual computation, ChatGPT, and FEA agrees with the results 95% of the time, the results of the instant value that occurs in the three reviews above are extremely satisfying. The greatest torque obtained by calculating manually, for example, is 750,000 N, which is the same as the maximum torque obtained using ChatGPT. Furthermore, the working pressure is 500 N, which is consistent with physical pressure, chatGPT, and LISA FEA V.8 (license) results. ChatGPT (Chat Generative Pre-trained Transformer, secara harfiah berarti Trained Chat Generative Transformer) adalah sebuah chatbot kecerdasan buatan berupa model bahasa generatif yang menggunakan teknologi transformator untuk mengantisipasi kemungkinan kalimat atau kata berikutnya dalam sebuah percakapan atau perintah teks. Meningkatnya penggunaan ChatGPT di semua lini keilmuan dan memberikan dampak positif seperti pada beberapa hasil penelitian sebelumnya. Pada penelitian kali ini, kami akan mengaplikasikan penggunaan ChatGPT pada bidang teknik struktur dengan menganalisa sebuah portal baja akibat beban lateral yang akan menghasilkan nilai drift yang terjadi dengan melakukan validasi menggunakan program analisis elemen hingga LISA V.8 FEA (lisensi) dan terhadap perhitungan manual. diharapkan penelitian ini dapat memberikan hasil yang memuaskan seperti pada penelitian terdahulu pada bidang teknik dan sosial lainnya. Penelitian ini melihat hasil dan output pengolahan data, serta perbandingan dari ketiga metodologi, yaitu analisis manual, ChatGPT, dan Metode Elemen Hingga. Karena nilai perhitungan manual, ChatGPT, dan FEA setuju dengan hasil 95%, maka hasil nilai instan yang terjadi pada ketiga tinjauan di atas sangat memuaskan. Torsi terbesar yang didapatkan dengan hitung manual misalnya adalah 750.000 N, sama dengan torsi maksimum yang didapatkan dengan menggunakan ChatGPT. Selanjutnya, tekanan yang bekerja adalah 500 N, yang sesuai dengan tekanan fisik, chatGPT, dan hasil LISA FEA V.8 (lisensi).
Behavior of Cakar Ayam Modifikasi (CAM) foundation on soft soil with LISA V.8 FEA Efendi, Aco Wahyudi; Safitri, Novia
Kurva S : Jurnal Keilmuan dan Aplikasi Teknik Sipil Vol 11, No 1 (2023)
Publisher : Department of Architecture, Faculty of Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31293/teknikd.v11i1.7887

Abstract

Pada beberapa lokasi yang ditinjau menjadi lahan stockyard dan dermaga penunjang di Kawasan Ibu Kota Negara Nusantara setelah dilakukan penyelidikan tanah didapatkan jenis tanah permukaan berupa tanah lunak dan diperlukan penanganan khusus. Fondasi sistem Cakar Ayam Modifikasi(CAM), ini telah digunakan diberbagai lokasi dengan kondisi tanah lunak di Indonesia. Penelitian ini melakukan analisis numerikal dengan menggunakan program Finite Element Method (FEM) LISA V.8 (Lisensi) dengan pengaruh beban gardar truk yang bekerja pada plat lantai dari system CAM. Dari hasil analisis numerik perilaku yang terjadi pada system Cakar Ayam Modifikasi(CAM), didaptkan terjadi perubahan posisi tegangan yang terjadi Ketika dilakukan Batasan kondisi dengan memberikan penurunan hingga 0.9 m dengan tanpa kondisi tersebut, dimana perubahan tegangan turun hingga rasio 4.25 pada area plat dan terjadi kenaikan pada sisi lainnya hingga rasio 1.02, sedang pada elemen Cakar Ayam Modifikasi(CAM) terjadi penurunan tegangan pula sebesar 2.26.
Co-Authors Akbar Zulkarnain Amir Wardana Andi Muhammad Ade Satriya Chi Weijia Dadang Sanjaya Atmaja ESWAN, TUKIMUN, Luzan, Irwan Faisal Muh Yusuf Natriya Faisal Rachman Rizki Satria Putra Safitri, Novia Yahya Do Zubran, Azan