Abstract The present work concentrate on frequency analysis of beams laminated with light activated shape memory polymer (LASMP), whose Young’s modulus can be adjusted by light exposure. Based on this noncontact mechanism, stiffness of beams with LASMP can be manipulated so as to realize frequency control. Natural frequency of LASMP patch laminated beams with different boundary conditions is computed by present methodology and FEM for validation first. Then, influence of LASMP patch pair length and location on natural frequency of simply supported beam is evaluated numerically. This work is helpful and useful for frequency control of beams in practical applications.

中文翻译：

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使用 LASMP 使用 Ritz 方法对光束进行频率分析

摘要 目前的工作重点是对层压有光激活形状记忆聚合物 (LASMP) 的梁进行频率分析，其杨氏模量可以通过曝光进行调节。基于这种非接触机制，可以通过 LASMP 控制梁的刚度，从而实现频率控制。首先通过现有方法和有限元法计算具有不同边界条件的 LASMP 贴片层压梁的固有频率以进行验证。然后，数值评估了LASMP补片对长度和位置对简支梁固有频率的影响。这项工作对实际应用中光束的频率控制很有帮助和有用。