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Journal : V-MAC (Virtual of Mechanical Engineering Article)

Rancang Bangun dan Analisis Akurasi Dinamometer Untuk Kajian Biomekanika Gaya Penari Bapang Prasetyo Adri Pamungkas; Muhammad Agus Sahbana; Nurida Finahari
Virtual of Mechanical Engineering Article Vol 5 No 2 (2020): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v5i2.1042

Abstract

Biomechanics is the study of internal and external forces acting on the body of living things and the effects of these forces. The study of the motion of living things is carried out by applying theories and laws of motion. The forces acting on the human body organ systems in biomechanics include gravitational force, body reaction force and muscle force. These forces can be measured using a dynamometer. This study aims to design a load cell sensor-based dynamometer which is used as a mass sensor, applied to the design, then analyzed its accuracy for the study of the biomechanics of Bapang dancers. The design is based on the availability of research funds but refers to the Mettler Toledo weighing principle, where the floor scale is designed as a measuring base for the dancers to perform their dances. The area of ​​this measuring base is predefined as 1.25 x 1.25 m. This has reduced the accuracy of the design results considering the ideal area for free dancing is 3 x 3 m. The design results have worked well and can record changes in the load during changes in dancer movements. The measured reading accuracy value reaches 98.36% but still includes measurement errors due to differences in the place and time of the calibration measurement, and differences in the clothes of the people who are the object of the load. The load reading display captures an average time delay of 0.468 seconds. It is recommended that the drawbacks of this design be corrected by designing a dancer's load measurement system using a load sensor that is shaped like a ballet shoe, but uses a wireless data transfer system so that the dancers can move freely. In addition, the shoe-shaped dynamometer design can definitively separate the load readings for the right and left feet.
Kinematika Sendi Lengan Penari Bapang Malangan Achmad Maulana Risky; Dadang Hermawan; Nurida Finahari
Virtual of Mechanical Engineering Article Vol 6 No 1 (2021): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v6i1.1292

Abstract

Dancers experience various injuries, because dancing requires high intensity movements. Frequent injuries to dancers involve overuse of joints and muscles. The highest potential for injury is in the knee. However, in the Bapang Malangan Dance, the arms are the limbs that are often used in extreme movements. Thus the potential for injury can be high. This study focuses on the kinematics of arm movement of the Bapang Malangan Dance in relation to the possibility of injury. The research was carried out through analyzing image data resulting from the rendering of dance video footage, following a kinematics-based biomechanical framework and engineering dynamics. The results showed that the kinematic analysis of the Bapang dancer's arm was depicted only on the change in position because velocity and velocity could not be measured directly. Changes in the position of the Bapang dancer's arms can be depicted in graphic form through frame analysis of the transformed video files into image files. The arm joints that get a lot of weight are the shoulder and elbow joints, which in Bapang Malangan dancers have the potential to experience injury due to tugging and twisting. The complexities of movements and changes in dancer movements turn out to make it difficult to determine the speed and acceleration by analyzing the rendered images. A measuring instrument is needed that can directly measure arm movements when dancing. This tool must not use cables so as not to obstruct the dance movement. Keywords: biomechanic, kinematic, arm joint, dancer, Bapang Malangan
Analisis Gaya Apung Dalam Olahraga Water Tubing Gatut Rubiono; Nurida Finahari
Virtual of Mechanical Engineering Article Vol 8 No 1 (2023): V-MAC
Publisher : Prodi Teknik Mesin Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/v-mac.v8i1.2669

Abstract

Water tubing merupakan olahraga air yang menggunakan ban dalam untuk mengarungi sungai. Olahraga ini menjadi daya tarik wisata sehingga termasuk dalam pengembangan sport tourism. Water tubing merupakan fenomena benda apung dimana suatu benda akan mengapung di atas permukaan air jika gaya apung benda lebih besar dari gaya berat bendanya. Penelitian ini bertujuan untuk menganalisis gaya apung dalam olahraga water tubing. Analisis dilakukan dengan membandingkan gaya apung dan gaya berat. Berat benda diasumsikan sebagai jumlah berat ban dan berat orang dengan variasi 50 kg sampai 100 kg dengan interval 5 kg. Ban dalam dibedakan tiga jenis berdasarkan ukuran diameter. Hasil perhitungan ditampilkan dalam bentuk tabel dan grafik. Hasil analisis menunjukkan bahwa tiga jenis ban dan variasi berat benda memberikan gaya apung yang lebih besar dibandingkan gaya beratnya