悬挂式缓冲系统易损件冲击响应特性
发布时间：2018-12-25 13:50
【摘要】：目的以考虑易损件的悬挂系统为对象,研究跌落冲击条件下易损件响应规律。方法建立系统无量纲动力学模型,利用四阶龙格库塔法分析易损件的位移和加速度响应。讨论系统悬挂角、频率比、阻尼比和无量纲冲击速度等参数对易损件位移、加速度响应的影响。结果系统的悬挂角、频率比以及主体与基础连接处的阻尼对易损件响应影响显著,随着系统悬挂角的增加,易损件加速度响应幅值增加,位移响应幅值减少,响应周期缩短。增加频率比可有效抑制易损件响应幅值。结论在跌落冲击条件下,悬挂系统的设计应选择适当的悬挂角、频率比等相关参数,以满足产品防护的需要。
[Abstract]:Aim to study the response law of vulnerable parts under drop impact by taking the suspension system considering the breakable parts as an object. Methods the dimensionless dynamic model of the system was established and the displacement and acceleration responses of the vulnerable parts were analyzed by the fourth order Runge-Kutta method. The effects of suspension angle, frequency ratio, damping ratio and dimensionless impact velocity on the displacement and acceleration response of the components are discussed. Results the suspension angle, the frequency ratio and the damping at the connection between the main body and the foundation have significant effects on the response of the vulnerable parts. With the increase of the suspension angle of the system, the acceleration response amplitude of the system increases, the displacement response amplitude decreases, and the response period is shortened. Increasing the frequency ratio can effectively suppress the response amplitude of the damaged parts. Conclusion under the condition of drop impact, the design of suspension system should select appropriate suspension angle, frequency ratio and other relevant parameters to meet the need of product protection.
【作者单位】： 江南大学;国家轻工业包装制品质量监督检测中心;
【分类号】：TB485.1
本文编号：2391212
[Abstract]:Aim to study the response law of vulnerable parts under drop impact by taking the suspension system considering the breakable parts as an object. Methods the dimensionless dynamic model of the system was established and the displacement and acceleration responses of the vulnerable parts were analyzed by the fourth order Runge-Kutta method. The effects of suspension angle, frequency ratio, damping ratio and dimensionless impact velocity on the displacement and acceleration response of the components are discussed. Results the suspension angle, the frequency ratio and the damping at the connection between the main body and the foundation have significant effects on the response of the vulnerable parts. With the increase of the suspension angle of the system, the acceleration response amplitude of the system increases, the displacement response amplitude decreases, and the response period is shortened. Increasing the frequency ratio can effectively suppress the response amplitude of the damaged parts. Conclusion under the condition of drop impact, the design of suspension system should select appropriate suspension angle, frequency ratio and other relevant parameters to meet the need of product protection.
【作者单位】： 江南大学;国家轻工业包装制品质量监督检测中心;
【分类号】：TB485.1
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