METHOD OF ACCELERATING TESTED OBJECT BY JET APPARATUS AND TEST BENCH TO THIS END Russian patent published in 2009 - IPC G01M15/00 

FIELD: process engineering.

SUBSTANCE: invention relates testing equipment and can be used to accelerate tested objects at rocket track. Proposed method comprises determining the weight of tested object (TO), type of rocket solid-propellant engines (RSPE), boost section length, tolerable overload, number of jet apparatus (JA) stages, rate and time T of RSPE operation proceeding from the condition t+t_c>T>t, where t is JA boost section operation time, t_c is the time of operation of the stage with the least cycle of engine operation It comprises also starting RSPE first-stage, holding JA at the start with the help of collapsible link during ΔT=T-t, destruction of aforesaid link, gradual start of RSPE and acceleration of JA from TO. Proposed dynamic test bench comprises rocket tract (RT), at least one JA stage with at least one RSPE and tested object arranged on rocket carriage fitted, via shoes, on rail guides of JA. Gas dynamic brake is mounted behind the first stage, consisting of the base to interact, via friction shoes, with rail guides of JA, plate-like sail fixed on the base opposite the RSPE nozzles and perpendicular to their lengthwise axis. Note here that sail area and its distance from the first-stage RSPE nozzles are selected from the conditions that allow equality of lengthwise component of forces acting on the sail to total thrust of the first stage. Note that gas dynamic brake is coupled with the JA first-stage collapsible at preset time moment by linkage that can be represented by explosive bolts. Container filled with weighting ballast is additionally arranged on the base of gas dynamic brake.

EFFECT: increased acceleration rate, higher efficiency of rocket track and expanded range of used RSPE.

4 cl, 5 dwg