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一、前言微机振动试验数据处理系统,作为一种强有力的手段,已在地震工程中的振动试验设备数字控制和数据处理中得到了广泛的应用。近年来我们应用 MDR-Z80微机系统实现了:1.电液式地震模拟振动台的数字迭代控制,在我所的1.5吨振动台上再现了希望的地震时程;2.在英制 DERRIT-RON VP-180电磁振动台上再现了特定的随机时程;3.利用微机系统给出了多种振动试验所需模拟信号,如正弦、正弦扫频、随机、伪随机和瞬态信号等;4.原型和模型动力试验的数据处理和模态参数
I. INTRODUCTION The microcomputer vibration test data processing system, as a powerful tool, has been widely used in the digital control and data processing of vibration test equipment in seismic engineering. In recent years, we have implemented the MDR-Z80 microcomputer system to: 1. Iterative digital control of an electro-hydraulic seismic simulation shaker, which reproduces the desired earthquake time schedule on our 1.5-ton vibration table; 2. In the British DERRIT-RON The VP-180 electromagnetic vibratory table reproduces a specific random time course; 3. The microcomputer system is used to give the analog signals needed for various vibration tests, such as sine, sine sweep, random, pseudo-random and transient signals; 4 Data processing and modal parameters for prototype and model dynamic tests