In this study,we focused on a novel parallel mechanism for utilizing the motion simulator of a high-speed boat(HSB).First,we expressed the real behavior of the HSB based on a seakeeping trial.For this purpose,we recor...In this study,we focused on a novel parallel mechanism for utilizing the motion simulator of a high-speed boat(HSB).First,we expressed the real behavior of the HSB based on a seakeeping trial.For this purpose,we recorded the motion parameters of the HSB by gyroscope and accelerometer sensors,while using a special data acquisition technique.Additionally,a Chebychev highpass filter was applied as a noise filter to the accelerometer sensor.Then,a novel 3 degrees of freedom(DoF)parallel mechanism(1T2R)with prismatic actuators is proposed and analyses were performed on its inverse kinematics,velocity,and acceleration.Finally,the inverse dynamic analysis is presented by the principle of virtual work,and the validation of the analytical equations was compared by the ADAMS simulation software package.Additionally,according to the recorded experimental data of the HSB,the feasibility of the proposed novel parallel mechanism motion simulator of the HSB,as well as the necessity of using of the washout filters,was explored.展开更多
Mono-wave-piercing boats adopt a tumblehome and wave-piercing design which is becoming popular among military vessels and yachts. Published studies on mono-wave-piercing boats mostly focused on motions and stability i...Mono-wave-piercing boats adopt a tumblehome and wave-piercing design which is becoming popular among military vessels and yachts. Published studies on mono-wave-piercing boats mostly focused on motions and stability in waves, or were conducted at low speed. A new high speed mono-wave-piercing boat is developed in this study and model tests have been finished in order to reveal more sailing characters of mono-wave-piercing boats. Special attention is paid to the sailing characters of mono-wave-piercing boats at speed. Model tests include resistance tests in calm water and seakeeping performance tests in regular waves. Available model test results give an insight in the way how the mono-wave-piercing boat runs in calm water and regular waves at speed and are valuable reference for similar and derived design.展开更多
文摘In this study,we focused on a novel parallel mechanism for utilizing the motion simulator of a high-speed boat(HSB).First,we expressed the real behavior of the HSB based on a seakeeping trial.For this purpose,we recorded the motion parameters of the HSB by gyroscope and accelerometer sensors,while using a special data acquisition technique.Additionally,a Chebychev highpass filter was applied as a noise filter to the accelerometer sensor.Then,a novel 3 degrees of freedom(DoF)parallel mechanism(1T2R)with prismatic actuators is proposed and analyses were performed on its inverse kinematics,velocity,and acceleration.Finally,the inverse dynamic analysis is presented by the principle of virtual work,and the validation of the analytical equations was compared by the ADAMS simulation software package.Additionally,according to the recorded experimental data of the HSB,the feasibility of the proposed novel parallel mechanism motion simulator of the HSB,as well as the necessity of using of the washout filters,was explored.
基金the Foundation of State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University(No.GKZD010061)
文摘Mono-wave-piercing boats adopt a tumblehome and wave-piercing design which is becoming popular among military vessels and yachts. Published studies on mono-wave-piercing boats mostly focused on motions and stability in waves, or were conducted at low speed. A new high speed mono-wave-piercing boat is developed in this study and model tests have been finished in order to reveal more sailing characters of mono-wave-piercing boats. Special attention is paid to the sailing characters of mono-wave-piercing boats at speed. Model tests include resistance tests in calm water and seakeeping performance tests in regular waves. Available model test results give an insight in the way how the mono-wave-piercing boat runs in calm water and regular waves at speed and are valuable reference for similar and derived design.
