Competitiveness analysis, manufacturing capability and pre-feasibility studies have been carried out in the rail propulsion system industry in Indonesia, particularly the traction motor industry (PT. PINDAD). The results show that currently the propulsion system industry is still less competitive, this is because the price of the products is still expensive. From the pre-feasibility analysis, the unit price of the traction motor for the capacity of 100 kW is still around US $ 130,000 / unit (with a production capacity of 40 units / year). The high cost of traction motor products of PT. PINDAD is suspected because of a limited market (only domestic), there are still many components imported and the manufacturing process is still not optimal. Therefore, to meet the feasibility scale, the unit price must be reduced to at least US $ 100,000 / unit (reduces 23%). This can be achieved if the production capacity is at least 100 units per year by penetrating the market and optimizing the production process.
Flutter is a rapid self-feeding motion which is caused by the interaction of aerodynamic, structural and inertial forces. Flutter can cause major damage on aircraft structure which can lead to fatal accident in aviation. Several methods have been evolved to avoid the flutter phenomena occur during the flight envelope of aircraft design. On this study, method was developed by Indonesian Aerospace which consist of Finite Element Method (FEM) analysis, Ground Vibration Test (GVT), and Wind Tunnel Flutter Test (WTT). Based on the study, FEM have similar results toward to Wind Tunnel Flutter Test conjunction the clean configuration of N219 aircraft half wing model.
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