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STRENGTH CONSIDERATION ON CAR BODY MODIFICATION FOR PANORAMIC TRAIN Harnany, Dinny; Adista, Reyhan K. A.; Syaifudin, Achmad; Putra, Ary Bachtiar Krishna; Priyambodo, Singgih
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1510

Modifying the car body structure from the existing train to another car body type requires an analysis of several factors. The strength of the design due to overload and the durability of the structures due to operational loads need to be re-evaluated. Furthermore, stiffness analysis also needs to determine the characteristics of the structure when it is not loaded. This study numerically analyzed the considerations in selecting the structural steel profile for modification of the existing car body into a panoramic type using the ANSYS Workbench R19. The underframe structure can still be used, and other structures are modified with the UNP profile. The side wall, and roof are changed in shape and size following the glass design of the panoramic train. The solid 3D model is rebuilt into a surface model to simplify the analysis. Static structural analysis is used to clarify the strength of the design under overload, a combination of static and transient structural analysis is applied to calculate the operating life, and modal analysis is chosen to figure out the stiffness. The simulation results showed that the modified design had met the needs and requirements based on the PM 175 standard of 2015 by the Indonesian Ministry of Transportation and the international standard EN-12663.

Multi-Objective Prediction of Drilling EMS-45 with Finite Element, Backpropagation Neural Network, and Metaheuristic Model Effendi, Mohammad Khoirul; Pramono, Agus Sigit; Suhardjono, Suhardjono; Sampurno, Sampurno; Harnany, Dinny; Pratiwi, Fungky Dyan
JMES The International Journal of Mechanical Engineering and Sciences Vol 8, No 1 (2024)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25807471.v8i1.19269

Making holes with the minimum thrust force and torque using a drilling machine is challenging for researchers because of the difficulties in setting input parameter such as the type of drill tool, point of angle, and feeding speed. Therefore, the trial-and-error method to predict optimum input parameters through experiment can be replaced with the Back Propagation Neural Network (BPNN) and metaheuristic method (i.e., genetic algorithm (GA) and Simulated Annealing (SA)) method to reduce costs and time. BPNN can be used to represent the input-output correlation precisely. However, obtaining a model with minimum Mean Squared Error (MSE) requires much data for training, testing, and validation. Since the obtained data from experiments requires expensive costs, combining data from experimental and simulation using ANSYS should considered to reduce the experimental costs. This study was then conducted to answer the research problem using an EMS 45 tool steel as the workpiece, with the three input parameters: type of drill tools (HSS M2 and HSS M35), the points of angle (118 and 134 degrees) and feeding speed rates (0.07 and 0.1 mm/s). The 32 data from experimental and modeling were used to model the correlation between the input and output parameters of the drilling process using BPNN. The BPNN’s network-model with minimum MSE is then used as the objective function to determine the input parameters to obtain the smallest value of thrust force and torque using the hybrid method using GA and SA.

Strength and Deformation Analysis on Car Door Design for Energy Saving Contest Pradanawati, Sylvia Ayu; Harnany, Dinny; Riyandwita, Byan Wahyu; Ikhtiar, Apri Roni; Sasongko, Dimas Wahyu; Khoiruddin, Ahmad Imam; Nazera, Afif Sulthan Rasyid; Rusydi, Muhammad; Saputra, Yafendra Arie; Widodo, Rizky Susilo
Journal of Emerging Supply Chain, Clean Energy, and Process Engineering Vol 3 No 1 (2024): Journal of Emerging Supply Chain, Clean Energy and Process Engineering
Publisher : Universitas Pertamina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57102/jescee.v3i1.77

The car door is a vital component of an automobile, playing a key role in passenger safety during accidents. For an energy-saving competition, the strength of a car prototype's door was thoroughly examined using Finite Element Analysis (FEA). This study involved three testing methods: pole side impact, side impact, and door slam tests. Simulations were conducted using the Finite Element Method (FEM) with aluminum alloy 6061-T4, type-E fiberglass, and type-S fiberglass as materials. These materials were selected based on their stress properties, mass, and cost. The simulation indicated that the side impact test produced the highest stress levels, especially in the fiberglass materials. While the aluminum alloy exhibited higher von Mises stress than its tensile strength in one case, both types of fiberglass maintained safety as their tensile strengths exceeded the maximum von Mises stress. The pole side impact test showed aluminum's highest stress and deformation, whereas fiberglass materials showed higher stress and deformation in the side impact test. The door slam test demonstrated minimal stress and deformation across all materials. Among the three, type-E fiberglass demonstrated the most favorable and safest performance. Consequently, type-E fiberglass is highly recommended as the ideal material for the car prototype's door.

STRENGTH CONSIDERATION ON CAR BODY MODIFICATION FOR PANORAMIC TRAIN Harnany, Dinny; Adista, Reyhan K. A.; Syaifudin, Achmad; Putra, Ary Bachtiar Krishna; Priyambodo, Singgih
Jurnal Rekayasa Mesin Vol. 15 No. 1 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i1.1510

Modifying the car body structure from the existing train to another car body type requires an analysis of several factors. The strength of the design due to overload and the durability of the structures due to operational loads need to be re-evaluated. Furthermore, stiffness analysis also needs to determine the characteristics of the structure when it is not loaded. This study numerically analyzed the considerations in selecting the structural steel profile for modification of the existing car body into a panoramic type using the ANSYS Workbench R19. The underframe structure can still be used, and other structures are modified with the UNP profile. The side wall, and roof are changed in shape and size following the glass design of the panoramic train. The solid 3D model is rebuilt into a surface model to simplify the analysis. Static structural analysis is used to clarify the strength of the design under overload, a combination of static and transient structural analysis is applied to calculate the operating life, and modal analysis is chosen to figure out the stiffness. The simulation results showed that the modified design had met the needs and requirements based on the PM 175 standard of 2015 by the Indonesian Ministry of Transportation and the international standard EN-12663.

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