The Comparison of Two Methods on the Reliability of Ship Collision for Bridge Based on Applied Mechanics

摘要

As for the reliability of ship-bridge collision, function relation between the structure response variable and basic variable is very complex and the traditional theory has been difficult to work it out, so we need the help of finite element numerical method to obtain the solution. APDL language and two methods are used to solve the reliability of ship-bridge collision, compared to seven MCS method conditions and ODRSM-MCS probability of failure of bridge pier. The pier failure probability of 10000 MCS method sampling and ODRSM-MCS sample is very close. ODRSM-MCS method and the MCS method to the case of the same accuracy, while MCS reliability is used in the calculation, the time used is 280min and the ODRSM-MCS mix of computational time is 5min. So the ODRSM-MCS method is much more efficient and effective.