桁架结构的阻尼设计

论述桁架结构的阻尼控制设计理论基础，包括：一种新型的双夹层圆柱式ＶＥＤ结构设计公式，桁架结构中ＶＥＤ动力设计的绝对值模态应变能法（简记ＡＶＭＳＥ），ＶＥＤ最佳位置选择方法和结构模态阻尼比对ＶＥＤ刚度的灵敏度分析，并给出利用这种ＶＥＤ控制桁架结构模态阻尼的具体设计。通过一个三维复杂桁架结构的设计和实验实例，对这种设计理论和方法进行了验证。

Design Guidelines of Truss Structures for Damping Control

The theoretical basis of design guidelines of truss structures with VED for damping control is expounded, which includes design formulas of a new kind of cylindrical VED with sandwiched structure, Absolute Value Model Strain Energy Method (AVMSE) for dynamic design of viscoelastic composite truss structures with VED and method for determining the optimal positions of VED and sensitivity of structureal modal damping ratio to stiffiness of the VED. A practical VED design for controlling modal damping of truss structures is given in details. The design theory and guidelines are verified through a practical design and experiment of a complicated three dimensioin truss structure.