Demand-Based Optimal Design of Storage Tank with Inerter System

Abstract EN

A parameter optimal design method for a tank with an inerter system is proposed in this study based on the requirements of tank vibration control to improve the effectiveness and efficiency of vibration control.

Moreover, a response indicator and a cost control indicator are selected based on the control targets for liquid storage tanks for simultaneously minimizing the dynamic response and controlling costs.

These indicators are reformulated through a random vibration analysis under virtual excitation.

The problem is then transformed from a multiobjective optimization problem to a single-objective nonlinear problem using the ε-constraint method, which is consistent with the demand-based method.

White noise excitation can be used to design the tank with the inerter system under seismic excitation to simplify the calculation.

Subsequently, a MATLAB-based calculation program is compiled, and several optimization cases are examined under different excitation conditions.

The effectiveness of the demand-based method is proven through a time history analysis.

The results show that specific vibration control requirements can be met at the lowest cost with a simultaneous reduction in base shears and overturning base moments.