The flight distance in ski jumping depends largely on the initial conditions immediately after leaving the ramp, the aerodynamic position of the athlete during the flight, and his kinematic behavior during the landing phase. However, these variables are not mutually independent. An attempt to maximize the jumping length means that one is faced with the problem of optimization. This paper discusses the difficulties in the optimization of some of the influencing factors with respect to maximization of performance. Although a ski jump may be divided into distinct phases approach run, takeoff, flight, and landing the results of the study suggest that a relevant procedure in optimizing a jump must include all phases, since every stage of the jump has its consequences on the subsequent phases. The major problems occur when looking at the transitions during takeoff and landing, due to the wide variety of possible kinematic behaviors of the athletes.

Author:Akir Durisar
Language:English (Spanish)
Published (Last):23 April 2011
PDF File Size:11.67 Mb
ePub File Size:4.12 Mb
Price:Free* [*Free Regsitration Required]

Springer Professional. Back to the search result list. Table of Contents. Hint Swipe to navigate through the chapters of this book Close hint.

Abstract A novel active mass damper, the twin rotor damper TRD , was presented in previous research, including control algorithms for monofrequent vibrations. In this paper, the steady-state damping performance is evaluated by applying a harmonic excitation force to a single degree of freedom SDOF oscillator with and without the action of the damping device.

An analytic solution describing the steady-state damping performance is derived. The analytic solution allows for the comparison with a dynamic vibration absorber DVA of comparable size stroke and control mass. Please log in to get access to this content Log in Register for free.

To get access to this content you need the following product:. Springer Professional "Technik" Online-Abonnement. Springer Professional "Wirtschaft" Online-Abonnement. Part 1: design. Part 2: verification. ASME Prentice Hall, Englewood Cliffs Device for damping vibrations of bodies, U. Patents No. Vieweg, Braunschweig Peterson, C. Vieweg, Braunschweig Publisher Springer International Publishing.


Dynamic properties of tall timber structures under wind-induced vibration

Springer Professional. Back to the search result list. Table of Contents. Hint Swipe to navigate through the chapters of this book Close hint.



Published by Cornelsen,, Berlin, Seller Rating:. About this Item: Cornelsen,, Berlin, More information about this seller Contact this seller 1.


Time History Analysis of Explosion

Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. This paper describes a project that aims at evaluating the dynamic properties of tall timber structures under wind-induced vibration in serviceability level from a series of onsite measurements on existing multi-storey timber buildings and timber towers. Ambient vibration measurement was carried out on nine timber towers and three tall timber buildings to derive dynamic parameters including natural frequencies, damping ratios, and mode shapes. View PDF.


Dynamik der Baukonstruktionen

Goodreads helps you keep track of books you want to read. Want to Read saving…. Want to Read Currently Reading Read. Other editions. Enlarge cover. Error rating book.

Related Articles