Two subway cars of the figure have a 2000 kg mass each and are connected by a coupler. The coupler can be modeled as a spring of stiffness k=280,000 N/m. Write the equation of motion and calculate the natural frequencies and mode shapes.
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Two subway cars of the figure have a 2000 kg mass each and are connected by a coupler. The coupler can be modeled as a spring of stiffness k=280,000 N/m. Write the equation of motion and calculate the natural frequencies and mode shapes.
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