Air bearing center cross gap of neutron stress spectrometersample table support system

摘要

A support system is the main load-beatingcomponent of sample table for neutron stress spectrometer,and air beating is an important element of a supportsystem. The neutron stress spectrometer sample table wasintroduced, and the schemewas selected. To study thefor air beating combinationperformance of air beatingcenter cross gap, finite element models （FEMs） wereestablished based on air motion and Reynolds equations,effects of air supply pressure, and gap parameters on theoverturning moment and beating capacity of air beatingcenter cross gap were analyzed. Results indicate that thewidth, depth, and height differences of the marble floor gapplayed important roles in the performance of the airbearing. When gap width is lesser than 1 mm and gapdepth is lower than 0.4 mm, bearing capacity andoverturning moment would vary rapidly with the variationof the width and depth. A gap height difference results inthe beating capacity dropping rapidly. The FEM resultsagree well with experimental results. Further, findings ofthe study could guide the design of the support system andmarble floor.