多点同步并激振动试验控制系统的设计与实现

针对类似导弹的细长条试件进行振动试验,难以实现振动与应力分布的均匀性，需采用多点同步并激振动试验才能达到试验要求，研制了多点同步并激振动试验控制系统。对多点同步并激随机振动试验控制提出系统均衡综合方法，以弥补不同均衡方法的不足。使用多处理器结合扩展总线通讯模式的硬件结构和多层次模块化的软件结构，对系统进行了实现。实验结果表明,该控制系统对多振动台同步振动试验控制效果良好，满足试验要求，具有一定的实用价值。

Design and implementation of vibration test control system of multi-exciter synchronization

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.