Military equipment such as large radar system is difficult to transport because protecting each of inner components is mandatory. Therefore, a large radar system is basically transported by military vehicle and consider safety about transportation vibration during design procedure. However, in this paper, a large radar system which includes a large radar and cooling unit is transported by a commercial truck, not military, using different mounting methods so that analyzing acceleration is necessary in terms of verifying safety about transportation vibration. In addition, PSD data which is measured during a variety of transport environment explains that air suspension can absorb vibration efficiently and input vibration is small compared to the MIL-STD-810H, as such most amount of vibration from road can be damped and small energy would be transferred to upper equipment through load path, chassis to equipment. Furthermore, specific mounting method fasten a large radar system effectively. As a result, using a commercial truck with mounting methods during transportation large radar system is totally safe from transportation vibration.

In modern society, industries are being upgraded in various fields. In particular, the defense industry has developed numerous technologies, such as the localization of core military technologies. The defense industry is actively studying technologies in areas such as in helicopters and tanks. In the case of radars, research on the radar itself is very active as is the research on the components that make up the radar. In this study, the temperature distribution of the two types of evacuation centers that make up the radar were analyzed using Computer Fluid Dynamics (CFD) to identify the temperature distribution based on the internal structure of the shelter. The two types of shelters have different heating values in different arrangements in the shelter provided they have the same size of heat source. Simulation results showed that the average temperature at the KA LNA shelter was different. In this study, we analyzed the effects of internal structure on the temperature and confirmed that the internal temperature may be decreased by changing the structure without using an external cooling element.