引用本文: 吴蒙蒙, 杨少红, 黄方等. 材料力学冲击问题中结构阻尼的影响分析. 力学与实践, xxxx, x(x): 1-5.
Wu Mengmeng, Yang Shaohong, Huang Fang, et al. Analysis of the influence of structural dampling on impact problem in mechanics of materials. Mechanics in Engineering, xxxx, x(x): 1-5.
 Citation: Wu Mengmeng, Yang Shaohong, Huang Fang, et al. Analysis of the influence of structural dampling on impact problem in mechanics of materials. Mechanics in Engineering, xxxx, x(x): 1-5.

## ANALYSIS OF THE INFLUENCE OF STRUCTURAL DAMPLING ON IMPACT PROBLEM IN MECHANICS OF MATERIALS

• 摘要: 材料力学中引入假设简化冲击问题，易造成对工程实际冲击过程理解上的偏差，为提高课堂教学的创新性和挑战度，本文设计了钢球-弹簧冲击实验装置，通过实验研讨了冲击动荷因数的测量结果与教材能量法计算值的偏差，并运用单自由度阻尼系统的振动理论分析了结构阻尼对冲击动荷因数的影响，通过算例验证了增大阻尼可减小冲击动荷因数。实践表明，采用理论与实验相结合的教学法加深了学生对冲击过程的直观感受和完整理解，培养了学生解决复杂力学问题的综合能力和创新思维。

Abstract: The introduction of assumptions to simplify impact problems in material mechanics can easily lead to deviations in understanding the actual impact process of engineering. In order to improve the innovation and challenge of teaching, this paper designs a steel ball-spring impact experimental device. Through experiments, the deviation between the measurement results of the impact dynamic load factor and the calculated values of the textbook energy method are discussed. And the vibration theory of a single degree of freedom damping system is used to analyze the influence of structural damping on the impact dynamic load factor. In addition, it has been verified through numerical examples that increasing damping can reduce the impact dynamic load factor. Practice has shown that the combination of theory and experiment deepens students' intuitive perception and complete understanding of the impact process, and cultivates their comprehensive ability and innovative thinking in solving complex mechanical problems.

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