Results 31 to 40 of about 1,614 (263)

Study on suppressing of stick-slip using dynamic vibration absorber

Nihon Kikai Gakkai ronbunshu, 2019
This study discussed design criteria for suppressing stick-slip using dynamic vibration absorber. First, a simplified analytical model that can quantify the effect of the dynamic vibration absorber on the occurrence and nonoccurrence conditions of stick ...
Satoru MAEGAWA, Fumihiro ITOIGAWA
doaj   +1 more source

Evaluation of dynamic absorber to suppress subharmonic nonlinear vibration in car powertrain

Mechanical Engineering Journal, 2015
This paper analyzed the suppression method of the nonlinear vibration called subharmonic vibration of order 1/2 in the car powertrain by using a dynamic absorber.
Sofian ROSBI, Takahiro RYU, Takashi NAKAE, Kenichiro MATSUZAKI, Atsuo SUEOKA, Yoshihiro TAKIKAWA, Yoichi OOI   +6 more
doaj   +1 more source

A global-local approach to the design of dynamic vibration absorber for damped inverted pendulum structures

Vietnam Journal of Mechanics, 2015
In practice, an inverted pendulum can be used to model many real structures as the arms of robots, soil structures, or fluid structures. However, the study on the design of dynamic vibration absorber for inverted pendulum structures is very limited in ...
N. D. Anh, N. X. Nguyen
doaj   +1 more source

Development and optimization of a resonance-based mechanical dynamic absorber structure for multiple frequencies

Journal of Low Frequency Noise, Vibration and Active Control, 2021
This paper presents a new dynamic absorber attenuating the vibrations at three resonance frequencies simultaneously. The dynamic vibration responses of mechanical systems with dynamic absorbers are mainly influenced by how close the eigenfrequencies of ...
Gil Ho Yoon, Hyunggyu Choi, Hongyun So
doaj   +1 more source

Occurrence Mechanism and Suppression Method for Shudder in Automatic Transmission Powertrain

International Journal of Automotive Engineering, 2014
Shudder occasionally occurs in the lock-up clutch of automatic transmissions when the frictional characteristics of the lock-up clutch have a negative slope with respect to the relative slip velocity. This study evaluates the effect of a dynamic absorber
Rosbi Sofian, Takahiro Ryu, Kenichiro Matsuzaki, Takashi Nakae, Atsuo Sueoka, Yoshihiro Takikawa, Yoichi Ooi, Kensaku Kawazu   +7 more
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Adaptive Piezoelectric Absorber for Active Vibration Control

Actuators, 2016
Passive vibration control solutions are often limited to working reliably at one design point. Especially applied to lightweight structures, which tend to have unwanted vibration, active vibration control approaches can outperform passive solutions.
Sven Herold, Dirk Mayer
doaj   +1 more source

Enzymatic degradation of biopolymers in amorphous and molten states: mechanisms and applications

FEBS Open Bio, EarlyView.
This review explains how polymer morphology and thermal state shape enzymatic degradation pathways, comparing amorphous and molten biopolymer structures. By integrating structure–reactivity principles with insights from thermodynamics and enzyme engineering, it highlights mechanisms that enable efficient polymer breakdown.
Anđela Pustak, Aleksandra Maršavelski
wiley   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

Elinvar Materials: Recent Progress and Challenges

Advanced Engineering Materials, EarlyView.
Elinvar materials, exhibiting temperature‐invariant elastic modulus, are critical for precision instruments and emerging technologies. This article reviews recent progress in the field, with a focus on the anomalous thermoelastic behavior observed in key material systems.
Wenjie Li, Yang Ren
wiley   +1 more source