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※美国达纳(DANA)大型道路模拟机(电子液压振动试验台),可以试验总重至8万磅的载重汽车和越野汽车。该模拟机由6台电液激振器组成,激振器安装在60万磅重加强混凝土的弹簧基础上。能支承并对26000磅重的车桥加振,每端13000磅。激振器冲程为10吋,每端有0.15吋的液力缓冲。单个激振器速度为180吋/秒。激振系统有双液压动力装置。各能以3000磅/吋~2的压力供给160加伦/分的液体流量。每台激振器的动力部分由二级250加伦/分流量的伺服伐控制。该模拟机可准确的再现各种道路的情况,能试验三桥车。
※ Dana large-scale road simulator (electronic hydraulic vibration test bed) can test trucks and off-road vehicles with a total weight of 80,000 pounds. The simulator consists of six electro-hydraulic exciters mounted on a spring of 600,000 pounds of reinforced concrete. Can support and vibrate 26,000-pound axle with 13,000 pounds at each end. Exciter stroke of 10 inches, each end of the 0.15-inch hydraulic buffer. Single exciter speed of 180 inches / second. The excitation system has a double hydraulic power unit. Each can supply 160 gallons / minute of liquid flow at a pressure of 3,000 pounds per square inch. The power section of each exciter is controlled by a two-stage 250 gal / min servo servo cut. The simulator can accurately reproduce the situation of various roads, can test three bridge car.