Online Estimation Techniques for Natural and Excitation Frequencies on MDOF Vibrating Mechanical Systems

channel estimation for mimo-ofdm systems

تخمین دقیق مشخصات کانال در سیستم های مخابراتی یک امر مهم محسوب می گردد. این امر به ویژه در کانال های بیسیم با ‏خاصیت فرکانس گزینی و زمان گزینی شدید، چالش بزرگی است. مقالات متعدد پر از روش های مبتکرانه ای برای طراحی و آنالیز ‏الگوریتم های تخمین کانال است که بیشتر آنها از روش های خاصی استفاده می کنند که یا دارای عملکرد خوب با پیچیدگی ‏محاسباتی بالا هستند و یا با عملکرد نه چندان خوب پیچیدگی پایینی...

Natural Gait Generation Techniques for Principally Kinematic Mechanical Systems

In this paper we present a novel gait analysis technique which can directly be used to synthesize gaits for a broad class of mechanical systems. We build upon prior work in locomotion mechanics, however we take a different approach to generate gaits that yield absolute motion of the mechanical system. We present a systematic analysis to control all parameters of a proposed type of gait which el...

Studying piezoelastic and piezomagnetoelastic configurations for different excitation frequencies in MEMS energy harvesters

Typically two configurations are used for energy harvesting with different advantages: piezoelastic and piezomagnetoelastic. Best performance of the piezoelastic configuration is when the excitation frequency is close to the resonance frequency. If the input frequency slightly deviates from the natural frequency, the generated power is severely decreased. To tackle the problem, the piezomagneto...

An Optimum Design Method for Vibrating Mechanical Structures Based on Topology Optimization Techniques

Department of Precision Engineering, Kyoto University, Kyoto, Japan Department of Aeronautics and Astronautics, Kyoto University, Kyoto, Japan, [email protected] Department of Aeronautics and Astronautics, Kyoto University, Kyoto, Japan, [email protected] Department of Aeronautics and Astronautics, Kyoto University, Kyoto, Japan, [email protected] Graduate School of Env...

Nonlinear Normal Modes of Vibrating Mechanical Systems and Their Applications