| It has immeasurable value and significance for deep-space exploration. The main way that man explore and utilize outer space resources is to send out detectors which can land on the expected planet. During the process of landing, that how to relieve and absorb shock and vibration of landfall and reduce effective load inside landing device with the aim of avoiding damage is a key step in the process of deep-space exploration.In view of such problems, on the basis of deep research into developing state of related areas, a brand new unfolding system design scheme which can be applied to the airbag landing device is was proposed in this thesis. Such system mainly aims for the planets like Mays around which there is air and large gravity to land on. With the guide of the design scheme above, all parts of such unfolding system were designed in detail.Then, the designed unfolding system was analyzed. The whole task was divided into two parts:For one part, kinematics and dynamics about the unfold system were analyzed. The relation between all motion coefficients and all torques of joints was researched as well as the effect of outside forces when that system works like the ground shock force when that device unfolds. At the same time, such structure parameters as the stiffness of torsion spring were revised.For the other part, the FEM is carried on about the unfolding system in its different unfolding phases, the models of all periods were constructed and numerical values were solved. Some inherit capabilities and responses under shock input were studied.Through analysis above, rationality and feasibility of that unfolding system were proved adequately. Relative theory and practical base was established for further improvement of such landing device. |
