Design on Inside Bag Enlaceing Device of Hazardous Chemicals in Double Bags
In order to improve the automation level of double bag packaging for hazardous chemicals,the working theory of enlaceing device of double bags was analyzed,Design ideas and structural model of main components were established to double bag enlaceing device,and the key parameters were optimized. Finally,the design of double bags enlaceing device was gained.
Abstract Many human operations have created a large population of small orbital debris in near Earth environment. The threat they represent for satellites is a major factor for the preparation of future space missions. Several experiments devoted to the study of this environment, as well as various materials exposed to space, have been retrieved in the past few years. The analysis of the results shows some differences with previous modeling. Comparison with data from LDEF and from EURECA give some insight in the long term evolution of particle size distribution. Chemical identification of particle remnants inside craters is difficult but provides valuable information on the origin of the impactors. Permanent monitoring of environment is obviously needed, especially for the type of orbits where data are presently scarce ie. heliosynchronous and geostationary orbits.