Avoiding Covid-19 Using a 3D Digital Mock Up and Augmented Reality with Cobot in Digital Factory

The Fourth Industrial Revolution or Industry 4.0 is extremely relevant and important in manufacturing for several reasons. Failing to adopt the technology of the Fourth Industrial Revolution can cause organizations to fall behind, as their operations are not digitized enough in benchmarking competitors. A major industry as bicycle manufacturing needs to be transformed into a digital factory in order to keep up with the evolving technology. The objectives of this research are in designing a 3D digital mock up and Augmented Reality (AR) for bicycle frame production in the form of digital factory for increasing production capability by decreasing the break-even point whilst avoiding Covid-19 contraction using Tecnomatix Plant Simulation and Unity 3D programs. This research constructed three alternative digital factory layouts that are designed by using a 3D simulation program. The risk of Covid-19 contraction points and the three layouts of cost per unit are analyzed. The results show that the break-even point of the first to the third layouts with Automated Guided Vehicle (AGV) are 26,580, 26,322 and 25,354 units respectively. The result of the risk about Covid-19 contraction points from the first to the third layout with AGV are 21,272, 2,872 and 0 points respectively. This means the most appropriate layout for bicycle frame production is the third layout due to the best break-even point that can significantly avoid Covid-19 contraction. The benefit of this research is to integrate a 3D digital mock up, AR and Cobot including AGV to assist the resilience of operations with a dynamic industrial environment.

Analysis the Strength of Mild Steel Material on a Handcycle Bike Frame

The frame is one of the most important parts in a series of constituents of a bicycle. The materials for making bicycle frames usually use tight and strong materials such as stainless steel, carbon and titanium. Mild steel is steel with low carbon, which is about 0.05-0.30%. After conducting a tensile test on the mild steel material used on the handcycle bicycle frame, the highest stress results were 1,093.87 N/mm² and the highest strain was 0.167%. For the results of stress analysis contained in the autodesk inverter, the von mesess results are obtained for men weighing 70 kg von mesess maximum 1400 mpa and women weighing 60 kg 1200 mpa. The maximum displacement generated for men weighing 70 kg 96.63 mm and women weighing 60 kg 82.83 mm. For the safety factor obtained based on the safety number from Dobrovolsky for static loads, the safety number is 1.25-2; dynamic load 2-3 shock load 3-5 while the safety rate that occurs in the load is 0.15 for men weighing 70 kg and 0.16 for women weighing 60 kg. So the handcycle bikes that we made are safe to ride because the results obtained are still below existing standards.

The Evaluation of Structural Analysis on Bicycle Frame using Steel Alloy and Titanium Alloy

Analysis of Bicycle Frame by using 3D CAD MODELLING TOOL In this project we are going to design Bicycle Frame by using 3D CAD Modelling tool i.e., CATIA V5 R20.After completion of design we are going to do structural analysis on frame with the use of existing material and proposed material and we’ll conclude why the proposed material better than the existing material.

Pembuatan Alat Portable Hand Washer (PHW) Dengan Sistem Kran Injak Kaki Untuk Mencegah Penularan Covid-19

Prinsip Kerja Alat pencuci tangan dengan menggunakan mekanisme pijakan kaki dimana air diisikan pada penampung air 120 L, isikan sabun cair pada botol yang telah disediakan kemudian pasang botol sabun pada baut yang ada pada mekanisme penggerak. Injak pedal air agar air keluar dari penampungan setelah air digunakan secukupnya kemudian pijakan dilepas maka pijakan akan kembali kepada posisi semula dikarenakan ada pegas yang mengembalikan pijakan tersebut dan secara otomatis air yang mengalir akan berhenti. Hasil dari simulasi pembebanan maksimum yaitu tangki air = 62 kg diperoleh angka keamanan tertinggi = 15 yaitu pada bagian head atas, sedangkan angka keamanan terendah = 1,7 di down bagian depan. Berdasarkan teori bahwa untuk beban statis angka keamanan: 1,25 – 2; beban dinamis: 2 – 3; beban kejut 3 – 5. Konstruksi rangka sepeda tersebut masuk dalam kelompok beban dinamis sehingga angka keamanannya minimal 2,00 maka untuk berat tangki 62 kg aman. Kata kunci: pencuci tangan, kran injak, sistem injak, covid-19 AbstractWorking Principle Hand washing tool uses a footrest mechanism where water is filled in a 120 L water reservoir, fill in the liquid soap in the bottle provided then attach the soap bottle to the bolt on the drive mechanism. Step on the water pedal so that the water comes out of the reservoir after enough water is used then the footing is released then the footing will return to its original position because there is a spring that returns the footing and the flowing water will automatically stop. The result of simulation the maximum loading of the water tank = 62 kg, the highest point = 15 at the top of the head, while the lowest number = 1.7 below the front. Based on the theory that for the statistical load the safety number: 1.25 - 2; dynamic load: 2 - 3; shock load 3 - 5. The bicycle frame construction is included in the dynamic load group so that the safety number is at least 2.00 so that for a tank weight of 62 kg it is safe. Keywords: hand washing, stepping faucet, stepping system, covid-19

An Analysis of Vibration Reduction Design on the Bicycle Frame Based on Multi-Body Dynamics Simulation

In recent years, the awareness of environmental protection has risen, and modern people’s quality of life has improved. Bicycles are no longer just general transportation and carrying tools, but evolved into the need to emphasize comfortable riding, energy-saving and carbon reduction, and physical fitness. In this study, the different vehicle-to-weight ratio and road bumpiness before and after designing the bicycle frame’s damping and stiffness parameters were considered. The simulation results designate that the seat acceleration in both the y and z-axis is adequate constant, and the seat velocity gradually increases, whereas the vertical seat displacement of damped has significantly reduced compared with undamped.