Results 21 to 30 of about 814,209 (291)
Gearshift Control in Engagement Process of Dual-Motor Coaxial Propulsion System for Electric Bus
IEEE Access, 2022 Considering single-motor drive system cannot meet the requirements of high-performance electric buses for Beijing Winter Olympics, a dual-motor coaxial propulsion system based on single planet gear set is developed.
Cheng Lin, Jiang Yi, Xiao Yu, Huimin Liu
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Rocky Mountain Journal of Mathematics, 1986 The paper is concerned with a chordal quadratic system \(dx/dt=P(x,y)\), (1) \(dy/dt=Q(x,y)\), namely a two-dimensional autonomous system with polynomial right-hand sides without finite singularities. The authors establish necessary and sufficient conditions for a quadratic system to be chordal and determine all possible phase portraits for such ...
Gasull, Armengol +2 more
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Body Travel Performance Improvement of Space Vehicle Electromagnetic Suspension System using LQG and LQI Control Methods [PDF]
, 2020 Electromagnetic suspension system (EMS) is mostly used in the field of high-speed vehicle. In this paper, a space exploring vehicle quarter electromagnetic suspension system is modelled, designed and simulated using linear quadratic optimal control ...
Jibril, Mustefa
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A high order purely frequency-based harmonic balance formulation for continuation of periodic solutions [PDF]
, 2009 Combinig the harmonic balance method (HBM) and a continuation method is a well-known technique to follow the periodic solutions of dynamical systems when a control parameter is varied.
Allgower +32 more
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Quadratic Dynamical Systems and Algebras
Journal of Differential Equations, 1995 It was observed by \textit{L. Markus} [Ann. Math. Stud. 45, 185-213 (1960; Zbl 0119.298)] that one can assign to every differential equation \(\dot x = Q(x)\) in \(\mathbb{R}^n\) with homogeneous quadratic \(Q\) a commutative, nonassociative algebra whose product is defined by \(xy = {1\over 2} (Q(x + y) - Q(x) - Q(y))\).
Kinyon, M.K., Sagle, A.A.
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Optimized fuzzy fractional-order linear quadratic tracking control for a nonlinear system
Results in Control and Optimization, 2023 In this paper, a novel fuzzy fractional-order Linear Quadratic Tracking (LQT) controller optimized by a Multi-Objective gray Wolf Algorithm (MOGWA) is designed for a 6 Degree-Of-Freedom (DOF) quadcopter flying system.
M.J. Mahmoodabadi, N. Rezaee Babak
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Advances in Mechanical Engineering, 2015 From the perspective of vehicle dynamics, the four-wheel independent steering vehicle dynamics stability control method is studied, and a four-wheel independent steering varying parameter linear quadratic regulator control system is proposed with the ...
Linlin Gao +4 more
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, 2000 The integrals of motion of the classical two dimensional superintegrable systems with quadratic integrals of motion close in a restrained quadratic Poisson algebra, whose the general form is investigated.
Daskaloyannis, C.
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Systems of quadratic diophantine inequalities [PDF]
Journal de théorie des nombres de Bordeaux, 2008 Let Q 1 ,⋯,Q r be quadratic forms with real coefficients. We prove that for any ϵ>0 the system of inequalities |Q 1 (x)|<ϵ,⋯,|Q r (x)|<ϵ has a nonzero integer solution, provided that the system Q 1 (x)=0,⋯,Q r (x)=0 has a nonsingular real solution and all forms in the real pencil generated by Q 1 ,⋯,Q r are irrational and have rank >8r.
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, 2007 Fractionally-quadratic transformations which reduce any two-dimensional quadratic system to the special Lienard equation are introduced.
Arnol'd V. I. +8 more
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