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All Journal IPTEK The Journal of Engineering Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Jurnal ELTEK Sewagati
Hendro Nurhadi
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IMPLEMENTASI ENSEMBLE KALMAN FILTER PADA ESTIMASI GERAK PROYEKTIL DI BAWAH PENGARUH FAKTOR TEMPERATUR DAN KECEPATAN ANGIN Diah Agustin; Erna Apriliani; Hendro Nurhadi
Jurnal Nasional Aplikasi Mekatronika, Otomasi dan Robot Industri (AMORI) Vol 1, No 1 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1120.529 KB) | DOI: 10.12962/j27213560.v1i1.6661

Abstract

Abstrak—Proyektil merupakan bagian dari peluru yang meluncur di udara akibat adanya ekspansi termal yang terjadi di dalam selongsong. Salah satu jenis kaliber proyektil yang dikenal mempunyai daya hancur cukup tinggi adalah proyektil kaliber 12,7 × 99 mm. Dalam gerak proyektil yang sangat cepat di bawah pengaruh faktor temperatur dan kecepatan angin, diperlukan suatu estimasi untuk memperkirakan gerak proyektil agar dapat mencapai target dengan tepat. Oleh karena itu, pada tugas akhir ini dilakukan estimasi gerak proyektil di bawah pengaruh faktor temperatur dan kecepatan angin.menggunakan metode Ensemble Kalman Filter. Selanjutnya hasil dari simulasi metode Ensemble Kalman Filter dilakukan perbandingan dengan menggunakan metode Kalman Filter yang bertujuan untuk mengetahui keunggulan dari estimasi EnKF. Hasil akhir menunjukkan bahwa estimasi EnKF lebih baik dalam mengestimasi gerak proyektil dengan ditunjukkan persentase akurasi estimasi EnKF adalah 93.96 % untuk variabel V1, 97.54 % untuk variabel V2, dan 66.10 % untuk variabel V3.
SIMULASI DAN EKSPERIMEN KONTROL AUTOMATIC TURRET GUN Mohamad Nasyir Tamara; Bambang Pramujati; Hendro Nurhadi; Endra Pitowarno
JURNAL ELTEK Vol 16 No 1 (2018): ELTEK Vol 16 No 1
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1410.9 KB) | DOI: 10.33795/eltek.v16i1.82

Abstract

This research presented Active Force Control (AFC) as a control method which is applied to Automatic Turret gun (ATG) in ground combat vehicles This method compares the reference force conducted by actuator with actual force of the mechanical systems that arise due to disturbances. The advantage of AFC method is its ability to handle disturbances effectively without complicated mathematical calculations. The AFC method uses Crude Approximation (CA) in the internal loop controller AFC as inertia matrix estimator as an important part in the control loop. Simulation without load on the azimuth movement shows PID controller produces the best precision with MSE of 0 degrees while RACAFC and RAC method provide MSE 0.267 degrees. In simulation on the elevation movement, the RAC method showed the best results with an estimated MSE of the targets shot of 2.42 degrees, while the PID and RACAFC method are 2.5 and 2.46 degrees. When simulation is conducted with additional load RACAFC method gives the best precision with a MSE of 0.267 and 2:46 degrees, while the PID method was 4.24 and the 10.52 degrees. RAC method produces MSE of 0.7 and 2.87 degrees. With the added load the performance of PID controller decreases. In the experiment on the constructed rig, RAC and RACAFC scheme produce smoother movement trajectory and minimum oscillation compared to the PID controller. In loaded conditions these methods are able to maintain their performance. However, these three methods can still achieve a reference point with or without load in the end of travel time
Workability Analysis of 3D Printing Materials for Applications in The Construction Industry Yuyun Tajunnisa; Ridho Bayuaji; Hendro Nurhadi; Beta Rahayuning Pratiwi
IPTEK The Journal of Engineering Vol 9, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v9i2.a16185

Abstract

The development of 3D Printing machine technology as a printing tool that uses an additive manufacturing method system with the aim of producing a three-dimensional (3D) object or object according to the default digital design file. 3D Printing was created to facilitate construction work, with 3D Printing construction work becoming lighter because this tool saves time, and costs, and reduces the risk of work accidents. With 3D Printing, work runs quickly and avoids problems in the development process. In the last few decades, many developed countries have used 3D Printing technology in making buildings. The 3D printing process basically consists of three different stages namely, data preparation, material preparation and transfer to the printer, and the printing stage. In the data preparation stage, the components are designed as 3D CAD models, then converted to STL (Stereolithography) format and sliced with the desired layer depth. The preparation of concrete involves mixing and placing it into a container. Once fresh concrete has been placed into the container, it can be channeled smoothly through a pump-pipe-nozzle system to print self-compacting concrete filaments, which build structural components layer by layer. The material used in this 3D printing method was Portland cement where this cement is easy to find among the public. Portland cement itself is the cement that is commonly used as a basic material for making concrete, plaster, mortar, and non-specialized mortar. In addition, fly ash and silica fumes are also added as a mixture. The addition of silica fumes increases the compressive strength of concrete. Furthermore, the addition of fly ash to the concrete has the effect of reducing drying shrinkage; but reducing the compressive strength of the concrete. In this study, the author focuses on the workability of 3D Printing concrete materials, and the impact of the material was added with additional type C fly ash and silica fume, namely flowability. The result is a concrete mix design that has good flowability value to be applied to the 3D Printing method
SIGN AND IMPLEMENTATION OF ELECTRICAL SISTEMS FOR BREAD DOUGH DEVELOPMENT PROOFER TECHNOLOGYS BASED ON MICROCONTROLLER WITH PID CONTROL FOR DONUT DOUGH Mashuri Mashuri; Ika Silviana Widianti; Bambang Sampurno; Hendro Nurhadi; Muhammad Syaiful Hakim
IPTEK The Journal of Engineering Vol. 11 No. 3 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v11i3.a23047

Abstract

The proofing process is an essential step in bread-making, where the dough is allowed to rest for the gas content to develop and form a soft structure. However, many small-scale bread producers still rely on manual methods for proofing, leading to unstable temperature and humidity levels and longer production times. This study focuses on developing an electrical system for a bread proofer that can stabilize temperature and humidity during the proofing process. The system includes an Arduino Mega microcontroller with a DHT22 sensor for real-time temperature and humidity detection, an I2C LCD for monitoring, and a potentiometer for setting the desired temperature and humidity values. To achieve stability, a PID control system is used. The results show that the system can stabilize at a temperature of 40.10oC and humidity at 80-90RH for approximately 38.4 minutes. This electrical system offers an effective solution for optimizing the proofing process in bread production.
Diseminasi Kumbung Jamur Tiram Dan Alat Pengontrol Kelembaban Pada Kelompok Tani Jawatan Taliati POMOSDA Tanjunganom-Nganjuk Adi Setyo Purnomo; Hendro Nurhadi; Muhammad Lukman Hakim; Herdayanto Sulistyo Putro; Surya Rosa Putra; Sri Fatmawati; Nur Khoiriyah; Alya Awinatul Rohmah; Nurmala Nadiva; Nazila Atika Ramadhani; Dewita Cahya Lestari; Dino Adnan; Safira Widya; Feni Fibigirtania; Difani Naura Hikma; Lynove Regyta Rahma; Ridhotul Nur Jannah; Muhammad Naufal Hibbansyah
Sewagati Vol 10 No 4 (2026)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v10i4.9403

Abstract

Jamur tiram (Pleurotus ostreatus) merupakan salah satu komoditas hortikultura dengan potensi ekonomi tinggi karena kandungan proteinnya yang besar serta manfaatnya bagi kesehatan. Permintaan jamur tiram terus meningkat, namun banyak petani masih menghadapi kendala dalam menjaga kelembapan kumbung agar tetap stabil, terutama saat kondisi cuaca tidak menentu. Abmas ITS 2025 di POMOSDA Nganjuk bertujuan meningkatkan efisiensi budidaya jamur kelompok tani Jawatan Taliati. Rangkaian kegiatan meliputi observasi, sosialisasi, hingga pembuatan kumbung inovatif berbahan galvalum dan baja ringan yang lebih tahan lama. Selain itu, dilakukan perancangan sistem pengontrol kelembapan otomatis menggunakan sensor DHT22 dan mikrokontroler Arduino yang mampu mengaktifkan pompa penyemprot air secara otomatis saat kelembaban berada di bawah batas ideal. Untuk memastikan keberlanjutan automasi dalam mengoptimalkan panen jamur tiram dan kemandirian pangan, kegiatan ini diakhiri dengan simulasi, pendampingan, serta proses pemantauan.
Co-Authors Adi Setyo Purnomo Alya Awinatul Rohmah Bambang Pramujati Bambang Sampurno Beta Rahayuning Pratiwi Dewita Cahya Lestari Diah Agustin Difani Naura Hikma Dino Adnan Endra Pitowarno Erna Apriliani Feni Fibigirtania Herdayanto Sulistyo Putro Ika Silviana Widianti Lynove Regyta Rahma Mashuri Mashuri Mohamad Nasyir Tamara Muhammad Lukman Hakim Muhammad Naufal Hibbansyah Muhammad Syaiful Hakim Nazila Atika Ramadhani NUR KHOIRIYAH Nurmala Nadiva Ridho Bayuaji Ridhotul Nur Jannah Safira Widya SRI FATMAWATI Surya Rosa Putra Yuyun Tajunnisa