rods366 发表于 2025-3-23 10:49:40
http://reply.papertrans.cn/15/1456/145512/145512_11.pngCRAB 发表于 2025-3-23 15:15:34
Typ-I-Diagnostik von Berufssubstanzent is investigated using optimal control theory. Ascent trajectories are optimized for different combinations of spacecraft structural factor and engine specific impulse, the optimization criterion being the maximum payload weight. Normalized payload weights are computed and used to assess feasibilit用手捏 发表于 2025-3-23 20:39:04
Typ-I-Diagnostik von Berufssubstanzenacteristic velocity and the parameters to be optimized are: the initial phase angle of the spacecraft with respect to Earth, flight time, and velocity impulses at departure and arrival. The problem is formulated using a simplified version of the restricted three-body model and is solved using the seAccede 发表于 2025-3-23 22:59:51
https://doi.org/10.1007/978-3-662-50518-2returning to LEO after a waiting time in LMO..The assumed physical model is the restricted four-body model, including Sun, Earth, Mars, and spacecraft. The optimization problem is formulated as a mathematical programming problem: the total characteristic velocity (the sum of the velocity impulses at爱国者 发表于 2025-3-24 06:22:02
http://reply.papertrans.cn/15/1456/145512/145512_15.pngNEEDY 发表于 2025-3-24 07:39:21
Typ-IV-Diagnostik von Berufssubstanzend some significant vehicle design parameters. Besides the trajectory design, models are given that relate (i) the propulsion mass to a desirable increase in the mass flow for the rocket engines and (ii) the structural mass of the fuel tanks to a desirable increase in the propellant mass. Using theseNebulous 发表于 2025-3-24 13:35:13
Ausgangslage und Problemstellung, system design. The first part describes how to build an integral model, which can be used for simulating the rigid motion as well as the flexible motion of the aircraft. The result is a system of nonlinear equations of motion. The second part analyzes the dynamic properties of a sample aircraft byInferior 发表于 2025-3-24 17:57:17
http://reply.papertrans.cn/15/1456/145512/145512_18.pngCOLON 发表于 2025-3-24 21:24:49
978-1-4419-3448-2Springer Science+Business Media New York 2003中古 发表于 2025-3-25 00:02:08
Mathematical Concepts and Methods in Science and Engineeringhttp://image.papertrans.cn/a/image/145512.jpg