Dynamic Characteristics Analysis of a Hydraulic Propeller Controlled by a Servo Valve for Work Class ROV
Journal Title: International Journal of Oceanography & Aquaculture - Year 2018, Vol 2, Issue 4
Abstract
In order to study the dynamic response characteristic of hydraulic propeller control system for a work-class ROV (Remote Operated Vehicle), a dynamic system model for hydraulic propeller controlled by a servo valve is constructed with respect to propeller dynamic load characteristics. An solution method for motor flow, motor pressure, motor speed, propeller torque and thrust is presented. The dynamic response characteristics of hydraulic propeller control system with different control voltages are analyzed by numerical simulation. The thrust constraint model in thrust allocation is constructed, and the nonlinear function relationship between the control voltage and the expected thrust is obtained. Compared with tank test results of hydraulic propeller, the simulation results are accurate and reliable. It is good for motion control, thrust allocation and hydraulic propeller control of underwater vehicles and dynamic positioning ships.
Authors and Affiliations
Xin-fei Li, Fu-xiang Huang, Yan Guo
Total Replacement of Fish Meal With processed Poultry Offal Meal (P-POM) Enhances the Growth Performance and Feed Utilization in Snakehead, Channa Striata (Bloch, 1793) Juveniles
This study was conducted to evaluate the replacement of fishmeal (FM) with processed poultry offal meal (P-POM) on growth performance and diet digestibility in snakehead, Channa striata juveniles. Fish (mean initial weig...
A Potential Substitute to Fish Meal: The Veined Rapa Whelk, Rapana Venosa
In aquaculture industry, fish meal is considered to be the most important raw material in aquatic feeds, due to high quality and quantity of its protein. The necessity of fish meal has been increasing as the aquaculture...
Water Security Plan for the Sustainable Development of Water Resources of Amini Jalgram, Union Territory of Lakshadweep, South India
The Water Security Plan for the sustainability of Water Resources of Amini Jalgram, Union Territory of Lakshadweep, South India has been studied. Amini Island is one of the smallest inhabited islands of the Union Territo...
Study of Mud Crab Fattening in Earthen Pen Pond with Different Stocking Density
The effect of stocking densities on the growth, survival and production of mud crab (Scylla spp.) was tested in a pen culture rearing system. The experiment was conducted for a rearing period of 90days in nine earthen pe...
Diatoms as Indicator Tool for Climate and Environmental Changes and Research Imperatives for Tropical Asia
Diatoms are microscopic autotrophic algae belonging to the Bacillariophyceae class. They may be planktonic, benthic, and epiphytic or epipelic etc., found in a wide range of habitats - freshwater, marine water and oceans...