Abstract:

It is difficult to achieve the uniformity of vibration and stress distribution for slender specimens such as missiles. In order to complete the vibration test requirements, a multiple shaker is needed to excite them synchronously, and a multi-exciter synchronization vibration control system is implemented. A system equilibriumsynthesis is presented to make up for deficiencies of different methods for random vibration test control algorithm. A control system is implemented with a hardware architecture of multiple digital signal processor (DSP) and peripheral component interconnect extensions for instrumentation (PXI) bus and a software architecture of multi-level modular. The related experiment result shows that the proposed control algorithm is effective and the system structure has a good expansibility. The control system can meet the vibration test requirements and has a certain practical value.