The design method of percussive dissipater in conduit outlet of rapid flow when pipe gets through the dyke is introduced in this paper and the design condition,advantage and potential application of this method are also presented with example.

Based on the summarization of the research on impact energy of mooring ships under wave actions and analysis of the main factors influencing the impact energy on wharf induced by mooring ships,this paper points out the adaptability of the existing calculation methods,and proposes some suggestions on the contents and orientation of further research.

The paper describes it is necessary to calculate the impact energy of the vessel against the wharf before proposing the design of fender and measures of the use when renovating the old wharf.

It is of key importance to conclude accurately the impact energy exerted by mooring ship under wave actions for the design of terminal and the selection and design of rubber fender.

This paper analyzes the characteristics and modes of ferryboats′ berthing,discusses the calculation method of strike energy about large-scale ferryboats,and recommends reasonable calculation mode.

As a considerable ingredient of wharf s secure use, the strike energy against wharf is affected by many factors.

The principled diagram of the major loop circuit and the relay circuit based on the intermediate frequency power supply energy stroke startup mode is presented in this paper.