TY - JOUR ID - 143732 TI - Cost Estimation for Space Propulsion Systems and Human Resource Cost and The Project Implementation Time Optimization JO - Space Science and Technology JA - JSST LA - en SN - 2008-4560 AU - Naseh, Hassan AU - Jafarpanah, Mostafa AD - Assistant Professor, Aerospace Research Institute, Ministry of Science, Research and Technology, Tehran, Iran AD - M.Sc., Aerospace Research Institue, Ministry of Science, Research and Technology, Tehran, Iran Y1 - 2022 PY - 2022 VL - 15 IS - 3 SP - 79 EP - 92 KW - cost estimation KW - Cost and Time Optimization KW - human resource KW - Motivation KW - Propulsion Systems KW - Space DO - 10.30699/jsst.2022.1302 N2 - The purpose of this paper is to present the cost estimation and optimization of space propulsion systems. Thus, choosing optimal propulsion system (from fuel and oxidizer aspect) is done in order to increase the efficiency and decrease the cost. Also, human resource cost and technology development time based on the consideration of labor cost effect on the personals motivation have been optimized. To this end, cost estimation and optimization algorithm has been drawn and suggested. The suggested algorithm has two steps. The first step in the algorithm is concern to cost estimation for seven fuel and oxidizer components. In the second step, labor cost and project implementation time is estimated and optimized based on the optimal space propulsion system derived from the previous step. Here, the objective functions are propulsion system technology development cost and time. On the other hand, the purpose is to consider the salary enhancement and consequently efficiency enhancement, time decrease and cost decrease. UR - https://jsst.ias.ir/article_143732.html L1 - https://jsst.ias.ir/article_143732_4148bca72191bc035f004e2307e23029.pdf ER -