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All Journal Jurnal Teknologi dan Manajemen Hexagon Journal of Community Services in Sustainability
Shalihah, Adinda Rahmah
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Industrial & Manufacturing Engineering

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Analysis of the Effect of Quay Container Crane Available on Dwelling Time at Jakarta International Container Terminal Gurning, Ridho Hans; Dendra, Feby Gusti; Shalihah, Adinda Rahmah
Jurnal Teknologi dan Manajemen Vol. 22 No. 2 (2024): JURNAL TEKNOLOGI DAN MANAJEMEN (AUGUST)
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jtm.v22i2.309

Abstract

The efficiency of loading and unloading dwelling time at the port has been done a lot. The problem at PT JICT is that there has been a decrease in throughput for the last three years, this has an effect on operational performance. operational performance is a representation of the achievement of all targets, thus the company always aims to improve its operational performance. Another problem is that the terminal's operational equipment has begun to be obsolete, which hinders the loading and unloading operation time, the lack of operational equipment that supports the loading and unloading process. The operational equipment studied is the Quay Container Crane which is seen from the available condition. All of these problems will have an impact on dwelling time at PT JICT which can affect operational performance. This research is expected to provide recommendations to PT Jakarta International Container Terminal to prepare adequate operational equipment so that the resulting dwelling time is known. This research method uses a dynamic system model and validation test with behavior pattern test. The results of the dynamic system model validation obtained dwelling time between 2.79 - 4.56 days, mean error of 3% and standard deviation error of 11%. Maintenance of quay container cranes has an influence on unloading productivity which has an impact on dwelling time. Based on 60 data, the quay container crane available variable is seen based on quartile values consisting of quartile 1 (Q1), quartile 2 (Q2) and quartile 3 (Q3). In the quay container crane available variable, the dwelling time value in quartile one is 1.34 days, quartile two is 1.47 and quartile three is 1.51 and the dwelling time value in quartile one is 14 units, quartile two is 12 units and quartile three is 10 units.
Simulasi Desain Sistem 1D Vibration Assisted Machining pada Pemesinan Milling Shalihah, Adinda Rahmah; Gurning, Ridho Hans; Wirandhanie, Agil; Ramadan, Fais
Hexagon Vol 6 No 1 (2025): HEXAGON - Edisi 11
Publisher : Fakultas Teknologi Lingkungan dan Mineral - Universitas Teknologi Sumbawa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36761/hexagon.v6i1.5105

Abstract

Vibration Assisted Machining (VAM) is a cutting method with additional vibrations on the tool or workpiece with a certain frequency and amplitude to improve the machining results' cutting performance and surface quality. VAM can be applied to several machining processes, such as drilling, turning, grinding, and milling. Based on the given direction, there are two types, 1D VAM where the vibration aligns with the actuator's axis, and 2D VAM where the vibration direction forms an elliptical movement. Both the application of VAM types in the milling process are still relatively minimal. Therefore, this study aims to present a 1D VAM system design using a piezoelectric ring actuator as a vibration device. The proposed design undergoes modal simulation and harmonic response simulation using Finite Element Analysis (FEA) method. A flexure hinge with a thickness of 5 mm and a notch radius of 5 mm is applied to the design. The results indicate that the proposed design operates optimally at a working frequency of 17,510 Hz, with a displacement amplitude of 0.0000094 mm along the Z-axis and a maximum equivalent von Mises stress value of 24.447 MPa. These results suggest that the design is viable for future experimental testing.
Sosialisasi K3 Dan 5R Pada Bengkel May Car Bodyworks Gurning, Ridho Hans; Arohman, Abdul Wahid; Shalihah, Adinda Rahmah
Journal of Community Services in Sustainability Vol. 3 No. 1 (2025): Journal of Community Services in Sustainability (April 2025)
Publisher : Politeknik STMI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52330/jocss.v3i1.431

Abstract

Basically, every job will have its own safety hazard risk factors, especially the automotive industry. Automotive industry work practices have Occupational Safety and Health (K3) risks for all workers in the work environment. Potential hazards that will be faced include exposure to chemicals, infections, allergies, electricity and physical such as slipping, falling, being scratched, stabbed, and hit which depend on the type of activity carried out in the area. Seeing aspects of the physical work environment such as the layout of practice equipment, personal protective equipment, work clothes, cleanliness of the room, lighting, irrigation, air conditioning in the work space is very important in creating a safe environment free from the risk of accidents or occupational diseases. This is what drives the Abdimas team to encourage socialization and implementation of K3 and 5R at the May Car Bodyworks Workshop with the aim of increasing efficiency, productivity, and quality in work activities at the Workshop. This activity uses a descriptive qualitative method, where the technique of collecting data information is selected in a specific way, and uses observation methods with interviews and documentation and is analyzed in the application. The results obtained are in the form of a report on the implementation and application of the 5R program in the Workshop and can implement the 5R and K3 culture programs.
Co-Authors Abdul Wahid Arohman Feby Gusti Dendra Ramadan, Fais Ridho Hans Gurning Wirandhanie, Agil