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由哈尔滨工业大学锻压教研室为哈尔滨车辆工厂研究的5t桥式自由锻锤砧下直接减震基础于1987年11月15日在哈尔滨车辆工厂通过航天部技术鉴定。我们运用基础振动的半空间理论分析锻锤基础的振动,建立了有阻尼双自由度振动力学模型及砧下弹性垫层刚度优化设计的数学模型,利用电子计算机优选出弹性垫层的最佳刚度。用哈工大锻压教研室研制成功的“锤用橡胶减震器”等构成组合弹性隔震元件对该5t锤进行砧下直接减震,并通过侧向楔式摩擦阻尼器限制砧座的回跳及其水平错移。该锤减震后经国家地震局的专家测量,锻锤基础的垂直振
Harbin Institute of Technology, forging by the Department for the Harbin vehicle factory 5t bridge free forging anvil under the direct antivibration based on November 15, 1987 in Harbin, the factory passed the Ministry of Aeronautics technology appraisal. Based on the half-space theory of foundation vibration, the vibration of the forging hammer foundation is analyzed, and the mathematical model of the damped two-degree-of-freedom vibration model and the stiffness optimization design of anvil under the anvil are established. The optimum stiffness of the elastic cushion is optimized by computer . Hammer with a large forging Department of the successful development of the “hammer with a rubber shock absorber” and other components of a combination of elastic isolation element of the hammer 5t anvil under the direct shock absorption, and through the lateral wedge-type friction damper limit anvil back rebound and its Horizontal shift. The hammer after the earthquake by the State Seismological Bureau experts measure the vertical vibration forging hammer foundation