This paper reports comparative experiments with two novel and one conventional thrust control algorithms for the unsteady (transient) control of thrust generated by conventional bladedpropeller marine thrusters. First, comparative experiments with three different thrust control algorithms over a wide range of unsteady operating conditions suggest that model-based control algorithms offer transi...

In [1], Savage described a unified mathematical framework for strapdown inertial navigation algorithm design. The commenting note [2] showed that the " velocity translation vector " (VTV) in the Savage's framework is equivalent to the dual part of an appropriate screw vector in the dual quaternion representation [3] and significantly simplified the VTV rate equation by way of the screw vector r...

This paper presents experiments with a new algorithm for the unseady (tranient) thrust control bladed-propeller marine thrusters. Comparative experiments over a wide range of unsteady operating conditions with three different thrust control algorithms demonstrate the model-based control algorithm to offer transient thrust-control performance superior to that of its non-model-based counterpart. ...

High velocity low amplitude spinal manipulation (HVLA-SM) is used frequently to treat musculoskeletal complaints. Little is known about the intervention's biomechanical characteristics that determine its clinical benefit. Using an animal preparation, we determined how neural activity from lumbar muscle spindles during a lumbar HVLA-SM is affected by the type of thrust control and by the thrust'...

leishmaniasis has long been known as a significant public health challenge in many parts of iran. phlebotomus pa­patasi and p. sergent i are the vectors of zoonotic cutaneous leishmaniasis and anthroponotic cutaneous leish­maniasis respectively, and 5 species of sand flies including p. kandelakii , p. neglectus , p. perfiliewi , p. keshishiani and p. alexandri are considered as probable vectors...

This paper investigates a formation control problem for two space vehicles in the vicinity of the L2 libration point of the Sun-Earth/Moon system. The objective is to accurately regulate the relative position vector between the vehicles to a desired configuration, under tight tolerances. It is shown that the formation control problem is solvable using six constant thrust electric actuators requ...

Considering a control system with fast and slow variations, the purpose of this note is to propose a notion of “average control system” that does not depend on how fast or slow the controls will be. This differs from the more usual use of averaging in control where the fast or slow variations of the control have to be specified before performing averaging. We also present an application to low ...

Abstract Thrust eccentricity refers to the phenomenon that thrust vector deviates from axis of symmetry. This will produce lateral force and torque around aircraft, which affects normal flight increases required control torque, reduces density uncontrolled rockets. There are three sources eccentricity: mass eccentricity, geometric aerodynamic eccentricity. The is caused by asymmetrical flow com...

The paper focuses on comparing applicability, tuning, and performance of different controllers implemented tested a finless rocket during its boost phase. objective was to evaluate the advantages disadvantages each controller, such that most appropriate one would then be developed in real-time rocket. compared were Linear Quadratic Regulator (LQR), Gaussian (LQG), Proportional Integral Derivati...