Having the harmonic response module in finite element calculation software adopted to analyze the steady state response of turbine straight blade under different harmonic excitations was implemented to obtain its dynamic stress at resonance frequency,including the stress situation under the rated operating conditions.In addition,through comparing the dynamic stress and their static bending stress of steam tur-bine straight blades,the distribution law of dynamic to static ratio was obtained to provide an idea for de-signing turbine straight blades
关键词
汽轮机叶片/动应力/谐响应/动静比
Key words
steam turbine blade/dynamic stress/harmonic response/dynamic to static ratio
维普
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