In light of the high price, unequal rigidity in horizontal direction and complicated installation of the horizontal steeless rope isolator, a drum shape of isolator consisted of ordinary steel rope (called PGG isolator) is studied and manufactured.
针对卧式不锈钢钢丝绳隔震器价格高、水平向刚度不相同、安装较复杂的不足 ,研制了由普通钢丝绳加工而成的鼓形隔震器 (简称 PGG隔震器 )。