Abstract The failure of the thermal protection structure is very important to safety aircraft structure. In order accurately predict flexural behavior aerogel sandwich structure, first all, for in form statically indeterminate beam with variable cross-section, theory considering transverse shear deformation core layer was deduced. Secondly, by comparing deflections, forms deflection curve and m...

Central tower concentrating solar power systems are moving to the forefront become technology of choice for generating renewable electricity, but their widespread implementation is limited by cost. Heliostats contribute almost 50% plant’s cost and thus most significant element in central systems. For both large small-area heliostats, drive elements demonstrate largest these While large-area hel...