[PDF] Top 20 A novel method for detecting the position of nonlinear components in multi-degree-of-freedom nonlinear systems

... ( ω ω ω ω (6) which is similar to the description of the output frequency response for linear systems. The NOFRFs reflect a combined contribution of the system and the input to the system output frequency response ... See full document

... locally nonlinear MDOF systems have been investigated using the concept of Nonlinear Output Frequency Response Functions ...MDOF systems have been derived, and these reveal, for the first ... See full document

... a novel method is developed in this section to estimate the linear stiffness and damping parameters for locally nonlinear MDOF ...This method requires that the masses m i , ( i = 1 , L , n ) ... See full document

... perturbation method [4–7, 33– 35], perturbation techniques [8], Lindstedt-Poincar´ e method [9, 10], parameter–expansion method [11, 12] and Parameterized perturbation method [13, ... See full document

... From these tables, one can see that the new acceleration scheme based on quadratic finite element approximation is the most quickly convergent. The iterative number is the least, only once. Since the new method is ... See full document

... We generate (see [6]) a G/M/1 queueing system with the inter-arrival times density function a and the service times exp ( ) µ . We divide the simulation period t into m periods when we have no arrival and no service ... See full document

... A flexible wing section was tested in the University of Liverpool wind tunnel. This tunnel has a maximum operating speed of around 20 m/s, which is well above the designed flutter speed of the model. The wing section in ... See full document

... researching nonlinear circuits and chaos all are estab- lished on the basis of dynamic mechanics except the mathematic method of finding differential ...researching nonlinear oscillation. The correct ... See full document

... A new mathematical model was built to better describe the novel nonlinear suspension for seat system, which can capture the main dynamic properties of seat suspension system. Using the signals measured ... See full document

... Notice that finding the analytical solution to (1.7) is still non-trivial. Hence, in practice, the solution is approximated using, for example, neural networks or Galerkin's method [5]. When the precise knowledge ... See full document

... The NOFRFs reflect a combined contribution of the system and the input to the frequency domain output behaviour. It can be seen from Equation (1.4) that G n ( j ω ) depends not only on H n (i=1,…,N) but also on the input ... See full document

... The m inim ization algorithm developed is based on Powell’s method, described in Numerical R ecip es (1989) fo r m u lti-v a ria b le s’ fu n ctio n minimization. For the evaluation o f the integral in (8) the Rom ... See full document

... based method is capable of producing solutions that are within a few percent of the optimal solution, and that the running time remains reasonable on practical-sized ...of multi-class IP networks with ... See full document

... Practical applications of this reducing technique show that the obtained function L  is, in most cases, a multi- modal function involving a long calculation-time to find a global minimum. That’s why a new concept ... See full document

... a nonlinear equilibrium equation into the optimal design of structures where a linear equation has been mostly used to ...kinematic nonlinear effects enter the equilibrium equation, difficulties can arise ... See full document

... grees of freedom, and the two components, xZpl, for plating with one degree of freedom, and x2Td, for random distribution with one degree of freedom, are calculated [r] ... See full document

... The working standards of 54 pesticides prepared from the individual standards. A method was developed for the 54 pesticides including retention time, quantifier and qualifier ions are given in Table (1). Six point ... See full document

... with the two famous algorithms. This can improve the behavior of the new algorithm to solve the nonlinear monotone equations which does not require Jacobian information of the nonlinear equations. The ... See full document

... ( ω ω ω ω (19) which is similar to the description of the output frequency response for linear systems. The NOFRFs reflect a combined contribution of the system and the input to the system output frequency ... See full document

... The mathematical description of nonlinear system in new set of coordinates allows us to use the backstepping approach to force it to behave like a linear one [7]. Backstepping has the availability to avoid ... See full document