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Primaningtyas, Widya Emilia
Politeknik Perkapalan Negeri Surabaya
Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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Journal : PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION

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ANALISIS PENGARUH VARIASI JENIS BAHAN PENGIKAT TERHADAP PERMEABILITAS PASIR CETAK PADA PENGECORAN LOGAM Tisya Pramesta Ramadhani; Farizi Rachman; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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The results of field observations and reports on the production and quality control of PT. Aneka Adhilogam Karya in 2021, show that the percentage of reject product decrease by 0.23% and company’s quality target decrease by 0.5% from the previous year, it can be concluded that every year the company try to reduce the percentage of reject products which are suspected to be caused by problems in the composition of the molding sand. It was found that the moisture content of the molding sand exceed the normal limit of 11,2%, so that the reject product was suspected to be caused by problems in the composition of the molding sand. Research on the correct composition of molding sand between the composition of sand and binder is needed to improve the quality of casting results. This research was carried out using an experimental method and then comparing the permeability of molding sand and casting results from two types of addition of binders, namely bentonite and molasses. Variations in the composition used are 1%, 3%, and 5%. The results of this study obtained a recommendation for the composition of molding sand that has the highest permeability and produces a product with the least quantity of defects is molding sand with the addition of 5% molasses binder, with a permeability value of 53.50±0.50 cm3/minute and a defect area of 11.97%.
Perancangan Konstruksi Main Girder pada Overhead Crane Single Girder SWL 2 Ton untuk Laboratorium Outboard Engine di Politeknik Perkapalan Negeri Surabaya Maulana Tanziilal Aziizir Rohiim; Tri Andi Setiawan; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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In this study, the main girder overhead crane construction design with a SWL capacity of 2 tons was carried out for the outboard engine laboratory at PPNS. The design is continued with the analysis of the strength of the construction made to calculate the maximum stress, and deflection. The analysis process will use the FEM (fenite element methods) approach using FUSION 360 software. Comparing the simulation results is carried out on the resulting stress values. From the results of the design and analysis, it is found that the dimensions of the main girder have met the requirements.
Analisis Tegangan dan Besar Defleksi pada Wall Jib Crane Kapasitas SWL 1 Ton Menggunakan Metode Elemen Hingga (Studi Kasus PT. Adiluhung Sarasanegara Indonesia) Laila Radina Ningtyas; Mohamad Hakam; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
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Analysis of the construction of a wall jib crane with a capacity of 1 ton was carried out by comparing the materials ASTM A36, ASTM A515, AISI 1008. The analysis was carried out using the finite element method with Fusion 360 software. From the results of the analysis, the material with the smallest deflection value is AISI 1008 of 9.98 mm with a von misses stress of 94,187 MPa, while in ASTM A36 and ASTM A515 the deflection value is 10.08 mm. The accumulated stresses and deflections that occur in each planned construction, both from manual calculations and simulations are declared safe, because the stress and deflection values that occur in the construction of the jib crane wall are below the allowable stress and deflection values. Based on the results of the design that has been carried out, the AISI 1008 material was chosen because it has a high safety ratio for wall jib crane construction.
Pengaruh Penggunaan Adhesive Agent terhadap Kekuatan Bending Komposit Sandwich Berpenguat Serat Daun Nanas - Bagasse Galuh Anitasari; M. Miftachul Munir; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
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The growth of ship production in Indonesia encourages the shipping industry to utilize the composite material in order to be more efficient. Natural fiber-reinforced composite (NFRC) is one option that should be considered for use. NFRC is considered safer than fiberglass, which could trigger several health problems. Sugarcane and pineapples are one of the most common agricultural commodities yet their waste has not been treated optmimally. This research is going to analyse the effect of reinforcement powder size on its bending strength in pineapple leaf fiber – baggase reinforced sandwich composites as the alternative materials for partition wall in ship interior accommodation room. Sandwich composites were reviewed for their bending strength on specimens with and without adhesive agent using 40 mesh reinforcement powder size. The composite was made using the hand lay-up method with skin composition is 20%;80% and core composition is 25%:75%. The highest bending strength for sandwich composite is 49,23±1,04 MPa as a result of the experiment using adhesive agent. Meanwhile the lowest bending strength is 44,66±2,45 MPa as a result of sandwich without adhesive agent. Composite material with the highest bending strength value could be applied as the material for partition wall in the ship interior accommodation room according to SNI 01-4449-2006.
Pengaruh Kombinasi Serat Karbon-Serat Sabut Kelapa Terhadap Kekuatan Impact dan Bending pada Aplikasi Helm Sepeda Motor Fajar Andi Nugroho; Mohamad Hakam; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
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Coconut coir fiber is a fiber derived from coconut shell waste which has economic value, is easy to process and easy to develop for the environmentally friendly composite industry, especially for motorcycle helmets. Carbon fiber is a synthetic fiber made of polyacrylonitrile, a study was conducted to see the response of variations in coconut fiber and carbon fiber layers on the impact and bending strength of composites used for motorcycle helmet applications. The use of synthetic carbon fiber in this composite provides several advantages including high tensile strength, relatively lighter weight, and low thermal expansion so that when combined with natural fibers, in this case coconut fiber, it will increase its structural strength. In this study, the bending strength of 50.765 MPa and impact strength of 0.038 J/mm2 were produced. The two highest values from each of these tests were obtained from the composite composition using 3 layers of carbon fiber and 2 layers of coconut fiber.
Analisis Pengaruh Variasi Komposisi terhadap Kekuatan Tarik Komposit Serat Sabut Kelapa Zidane Al Bayan Sulaksono; Fais Hamzah; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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One of the transportation supporting the economy in Indonesia is the ship. The government prioritizes the maritime sector in national development, which has a positive impact on the domestic shipping industry in the production of ships with various raw materials being developed. Fiberglass is a type of FRP (Fiber Reinforced Plastic) reinforcing fiber. In the manufacture of FRB (Fiber Reinforced Boat), fiberglass is an important part, its texture is light, and sharp, easily blown by the wind and can be inhaled into the breath which is not good for health. Indonesia is overgrown with coconut plants, parts of the coconut plant have many benefits, but coconut coir is less used, and is considered a waste that accumulates under coconut plants and is left to rot, therefore it is necessary to use coconut coir as an alternative to natural fiber from coconut coir. Synthetic fibers in the manufacture of composites. In this study, a study was conducted on the effect of composition on the tensile strength of coconut fiber reinforced composites, using a fiber delignification time of 45 minutes and the variation of fiber composition was 20%, 30% and 40% based on volume fraction. Coconut coir fiber is carried out by delignification process using NaOH solution with a concentration of 5% for 45 minutes. The composite with the highest tensile strength was 40% fiber composition, which was 60.96 ± 6.36 MPa. While the lowest tensile strength with a fiber composition of 20% is 31.88 ± 9.51 MPa.
Analisis Variasi Komposisi terhadap Kekuatan Tarik Komposit Serat Daun Nanas dengan Orientasi Random Evy Agnessylviana Rooseta; Wiwik Dwi Pratiwi; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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Pineapple leaf waste that is treated properly will provide added value. For example, the use of pineapple leaf fiber for the manufacture of composites. In addition, composites with natural fibers are lighter than synthetic fibers. Synthetic fibers also have several disadvantages, namely they can irritate the hands and can injure the lungs during the production process. In this study, research was conducted on the effect of orientation and composition on the tensile strength of pineapple leaf fiber reinforced composites. The arrangement of the fibers used is random, while the variations in fiber composition are 55%, 60% and 65% based on volume fraction. Pineapple leaf fiber used through the delignification process using 5% NaOH solution for 2 hours. The composite that produces the greatest tensile strength is a composite with one direction fiber orientation with a fiber composition of 55%, namely 7.18 ± 0.91 MPa. While the lowest tensile strength in random orientation composites with a fiber composition of 65% is 4.04 ± 1.02 MPa.
Pengendalian Kualitas Ketipisan Dinding Botol Kaca Berkarbonasi Pada Proses Blow and Blow Dengan Metode Six Sigma Abid Zaidahul Barok; Endang Pudji Purwanti; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
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Non-returnable glass bottles for carbonated drinks produced by the blow and blow process have defects on the walls of the glass bottles, so that the production process is still rejected. Machine 11 had the highest reject percentage in June 2019 reached 1.20% with an average monthly reject percentage of 0.74%, this could cause harm to the company. This research aims to determine the cause of thinness of carbonated bottle walls below specifications, and also to find an effort to reduce the cause of thinness of carbonated bottle walls under specifications. The method used is Six sigma DMAIC. At the measure stage gets 4.09 sigma from the DPMO calculation and control diagram the p-chart has a statistically uncontrolled. In analyzing stage using FTA, there were 5 factors found; blank mold was replaced in productin, final blow time was too fast, counter blow time was too fast, blank mold was often repaired, swab was not done correctly, while the effort quality control to do was manually re-inject the bottles which came out of the newly replaced mold, check panel periodically during the job change process, to check final blow timing and counter blow timing, check mold lifetime, swab the dirty/ dry mold and did regular checks.
Pengaruh Perlakuan Alkali terhadap Kekuatan Tarik Komposit Epoxy Berpenguat Serat Bagasse Enggar Dyah Nailufah Haryanti; Budianto Budianto; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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Sugarcane is a plant that is used as the main ingredient for making sugar. On the other hand, the utilization of bagasse is not optimal, where on average, bagasse is only used as fuel for the production process and for power generation. Bagasse fiber can be processed for the manufacture of composites. The benefits of bagasse fiber as a composite are quite good mechanical properties, noncorrosive, easy to obtain and environmentally friendly. In addition, when compared to synthetic fibers, composites with natural fibers are lighter. Synthetic fiber also has some drawbacks, namely it can cause skin irritation and injure the lungs during the production process. This time, a research was conducted on the effect of alkaline treatment on bagasse fiber. The variation of NaOH concentration is 0% and 3% for 1 hour. The composite was made using 5 mm short fibers arranged randomly and Chopp Matt fibers with a composition of 35%:65%. The composite with the highest tensile strength was obtained at the delignification process variation of 3% NaOH concentration with a tensile strength of 38.25±5.79 MPa. Then the lowest tensile strength occurred at 0% NaOH concentration variation with a tensile strength of 18.74±3.02 MPa.
Pengaruh Variasi Perlakuan Alkali terhadap Kekuatan Tarik Komposit Berpenguat Serat Eceng Gondok Moch. Daffa Afif R. Tausa; Pranowo Sidi; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
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Water hyacinth (Eichhornia crassipes) is a weed plant in aquatic areas that lives floating in waters. Water hyacinth has a very fast reproduction so that this plant is considered as a plant that damages the environment. In this research, water hyacinth fiber-reinforced composites were made. The main variables of this study were the volume fraction variation of 15% and the alkaline process using NaOH concentration of 0% and 5% immersion for 2 hours with the tensile testing procedure referring to ASTM D 3039. From the results of the study obtained the average maximum tensile strength 19.71 ± 4.60 MPa at 5% NaOH delignification for 2 hours and the lowest average tensile strength at 0% NaOH delignification for 2 hours 14,76 ± 1,98 MPa.
Co-Authors Abdullah, Kharis Abi Rafdi Haidi Abid Zaidahul Barok Abu Zamani Adristi Nisazarifa Ahmad, Mahasin Maulana Alfanda, Benedicta Dian Aloysius Yudhistira Adi Nugraha Amanda Rosalina Aminatus Sa’diyah Amir Biqi Andiana, Rocky Andita Dharmayanti Fatimatu Zahro Anggara Trisna Nugraha Bayu Wiro Karuniawan Berlyan Putri Anugrah Nillahi Ts. Budianto Budianto Cahyono, Luqman Chamim Handoyo Desrilia Nursyifaulkhair Dhika Aditya Purnomo Dwi Sasmita Aji Pambudi Dymaseka Nasbih Sabbilli Endang Pudji Purwanti Enggar Dyah Nailufah Haryanti Evy Agnessylviana Rooseta Fais Hamzah Fajar Andi Nugroho Farizi Rachman Feri Alfian Pradana Fipka Bisono Galuh Anitasari Imah Luluk Kusminah Inshiro Auliyasari Khafifulloh Al Faqih Zam Zammi Kiki Dwi Wulandari Kusminah, Imah Luluk Kusuma, George Endri Kusumawardhani, Jeanny Marine Ardya Putri Viola Laila Radina Ningtyas M. Miftachul Munir Maulana Tanziilal Aziizir Rohiim Mazidah Alfarah Syawalyah Moch. Daffa Afif R. Tausa Mohamad Hakam Nindyapuspa, Ayu Ningrum, Dwi Setia Novi Indah Riani Pradana, Feri Alfian Pramesti, Lely Pranowo Sidi Priyambodo Nur Ardi Nugroho Rahma Rei Sakura Rahma Rei Sakura Rina Sandora Risa Nurin Baiti Santoso, Budhi Silvi Ariani Siti Annuriyah Sri Puji Lestari Suheni Suheni Sumardiono Sumardiono, Sumardiono Tarisa Anggraini Tisya P. Ramadhani Tisya Pramesta Ramadhani Tjahyonowatie, Sri Tri Andi Setiawan Utomo, Agung Prasetyo Virgiana Kusuma Pratiwi Wahyuniarsih Sutrisno Wildan Al Farizy Rif’an Wiwik Dwi Pratiwi Wiwik Dwi Pratiwi Wulandari, Kiki Dwi Zidane Al Bayan Sulaksono