Article Per Year (5 Year)
p-Index From 2020 - 2025
0.778
P-Index
This Author published in this journals
All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Ilmiah Teknik Mesin Poros KOLECER: Scientific Journal of Mechanical Engineering
Kwintarini, Widiyanti
Unknown Affiliation
Automotive Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
DESIGN AND PROTOTYPING OF ELECTRIC CARRYING TRACTORS Rizayana, Farid; Kwintarini, Widiyanti; Hermawan, Muhammad Reza; Bayuseno, Athanasius P; Jamari, Jamari
ROTOR Vol 16 No 2 (2023)
Publisher : Jurusan Teknik Mesin Fakultas Teknik Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/rotor.v16i2.43816

Abstract

Locations with hard-to-reach access make people living in 3T (Terluar/Front, Terpencil/Remote, Terbelakang/Backward) areas unable to enjoy quality fuel oil (BBM) at affordable prices. This research provides solutions for people in remote areas and communities in the 3T area to utilize agricultural equipment without dependence on fuel. The agricultural equipment in question is a Multifunctional Portable Tractor driven by an electric motor, using a battery. Batteries are recharged from solar sources through solar panels, water turbines and wind turbines. The research method used adopts the "Walter Franco" method (Franco et al., 2020). Product design and development involved 3 farmer groups from 3 different regions in West Java and six small machinery component industries in West Java, Indonesia. Research methodology involves the use of observations and field testing prototypes as instruments. This research resulted in innovative equipment that can be used for sloping land farming. This equipment is the only mechanical agricultural equipment that can be folded and carried by one person, so its contribution to research in inclined land farming is very large. This equipment is proven to cultivate land on sloping land profitably, so its contribution to farmers in Indonesia and other countries will be very significant Keywords: Carrying tractor, Electric drive, 3T, Sloping land, Agricultural mechanization
Karakterisasi Material Hanger Panjat Tebing Kwintarini, Widiyanti; Sonawan, Hery; Alqurin, Wais
POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i1.26654

Abstract

The Rock climbing hangers function as anchors for safety when climbing and are usually used for cliff surfaces that have few natural anchors. The tests that will be carried out in this research are chemical composition testing, hardness testing and metallographic testing. Testing the chemical composition of materials aims to find out what alloys are in imported and local rock climbing hangers. In the material composition test results, the imported rock climbing hangers are Austenitic Stainless Steel 304, because they contain 18.49% Chromium (Cr) and 7.92% Nickel. The local rock climbing hangers are low carbon steel, because they contain 0.056% Carbon © elements. The hardness value of imported rock climbing hangers is greater, namely 292 HVN, compared to local rock climbing hangers which have a hardness value of 136 HVN. Local rock climbing hangers are low carbon steel so they are dominated by the ferrite phase and there is a small amount of pearlite phase. Meanwhile, the imported rock climbing hangers are Austenitic Stainless Steel 304 which have undergone a cold rolling process. The tensile test results show that the imported hanger has a stress value of 7655 N or 729 MPa, higher than the local hanger with a stress value of 2826 N or 259 MPa
Optimasi Desain dan Kinerja Mesin Pengupas Sabut Kelapa dengan Kapasitas 260 Buah per Jam Kwintarini, Widiyanti; Supriyono, Toto; Permana, Abduh
KOLECER Scientific Journal of Mechanical Engineering Vol. 1 No. 1 (2025): March 2025
Publisher : Program Studi Teknik Mesin Fakultas Teknik Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/ksjme1120252314823-28

Abstract

Kelapa (Cocos nucifera) merupakan tanaman tropis yang berasal dari pesisir Samudra Hindia di kawasan Asia dan kini telah tersebar luas di berbagai pantai serta kepulauan tropis di dunia. Tanaman ini memiliki banyak manfaat, terutama bagian sabut kelapa yang digunakan dalam berbagai industri. Seiring dengan meningkatnya permintaan sabut kelapa, petani membutuhkan alat pengupas yang lebih efisien, aman, dan mudah dioperasikan. Mesin pengupas sabut kelapa berfungsi untuk memisahkan sabut dari batok kelapa, namun banyak mesin yang tersedia di pasaran masih memiliki keterbatasan dalam aspek keamanan dan efektivitas operasional. Oleh karena itu, penelitian ini bertujuan untuk memodifikasi desain mesin pengupas sabut kelapa guna meningkatkan efisiensi dan keamanan penggunaannya. Modifikasi dilakukan dengan menerapkan mekanisme penjepitan sabut menggunakan pisau pengupas yang berputar berlawanan arah, sehingga proses pengupasan dapat berjalan lebih optimal. Mesin yang telah dimodifikasi memiliki dimensi 645 mm × 738 mm × 1672 mm dengan penggerak motor listrik satu fasa berdaya 1 hp dan kecepatan putar 1400 rpm. Hasil evaluasi menunjukkan bahwa modifikasi ini dapat meningkatkan keamanan, kemudahan pengoperasian, serta efisiensi proses pengupasan dibandingkan mesin konvensional. Penelitian ini diharapkan dapat menjadi dasar bagi pengembangan mesin pengupas sabut kelapa yang lebih inovatif dan mendukung industri pengolahan kelapa di masa depan.
Co-Authors Alqurin, Wais Bayuseno, Athanasius P Farid Rizayana Hermawan, M. Reza Hery Sonawan J. Jamari Permana, Abduh Toto Supriyono, Toto