Overall design on a Lian Yungang 5000 m~3 drag suction dredger;

Dump door mounting for mud hold on drag suction dredger;

Estimation of dredging operation resistance of drag suction dredger;

Trailing suction hopper dredger plays an important role in growth and construction of port and waterway.

The paper expounds the major mathematical models that have been developed independently for trailing suction hopper dredgers to optimize their production and improve their working technology according to the changes of seabed.

After analyzing the dredging diesel updating for trailing suction hopper dredger that imported from abroad, this paper gives a demonstration of operation characteristics, application range, relevant technological problems and solvent of new machine type.

On type of all-electric propulsion plan for suction hopper dredger;

The classification of CCS has the trend to allow the suction hopper dredger to reduce its freeboard,while the intact stability should be calculated in terms of DR67 resolution.

Analysis of overflow loss of trail suction dredger;

This paper introduces the draghead technique development of trail suction dredger, analyzes the structure whose drag principle adapts the working situation and presents advices on how to improve the dredging ability, selection and use of the draghead.

Optimum Hopper Capacity Selection for TSHD Based on the Cost Calculation;

To find the rule about the change of the mass center positions of a TSHD s draghead with time when working in different soil hardness of seabed under the function of swell compensator, a simulation model of TSHD is built based on a mathematical model, by using the software of ADAMS (Automated Dynamic Analysis of Mechanical Systems).