Results 71 to 80 of about 376,126 (204)

Research and Analysis of Quasi-Zero-Stiffness Isolator with Geometric Nonlinear Damping

Shock and Vibration, 2017
This paper presents a novel quasi-zero-stiffness (QZS) isolator designed by combining a tension spring with a vertical linear spring. In order to improve the performance of low-frequency vibration isolation, geometric nonlinear damping is proposed and ...
Qingguo Meng, Xuefeng Yang, Wei Li, En Lu, Lianchao Sheng   +4 more
doaj   +1 more source

Using unmanned aerial vehicles (drones) to improve access to blood in low‐ and middle‐income countries: Current challenges and opportunities

Vox Sanguinis, Volume 121, Issue 6, Page 700-709, June 2026.
Abstract Blood transfusion is life‐saving for patients in emergencies, but low‐ and middle‐income countries (LMICs) often face a severe shortage of banked blood. Establishing blood banks in rural areas presents substantial logistical and economic challenges for many LMICs.
Suvro Sankha Datta, Ritwick Mondal, Shramana Deb, Giuseppe Tortora, Angela Pirri   +4 more
wiley   +1 more source

On the transmissibilities of nonlinear vibration isolation system

, 2016
Transmissibility is a key parameter to quantify the effectiveness of a vibration isolation system. Under harmonic excitation, the force transmissibility of a linear vibration isolation system is defined as the ratio between the amplitude of the force ...
Brennan, Michael J. [UNESP], Lu, Zeqi, Chen, Li-Qun, Brennan, Michael J.   +3 more
core   +1 more source

Dynamic performance of an inerter vibration isolator under base excitation considering friction

Journal of Low Frequency Noise, Vibration and Active Control
The inerter is a vibration control element related to the acceleration between its two ends, which can increase inertia through a speed-increasing mechanism.
Shibo Xing, Yongjun Shen, Tian Wu
doaj   +1 more source

Ride comfort and segmental vibration transmissibility analysis of an automobile passenger model under whole body vibration. [PDF]

Sci Rep, 2023
Guruguntla V, Lal M, Ghantasala GSP, Vidyullatha P, Alqahtani MS, Alsubaie N, Abbas M, Soufiene BO.   +7 more
europepmc   +1 more source

Characteristics of Force Transmissibility in PLOVIS-II Cooler Micro-Vibration Isolation System

Aerospace
This study investigates the basic characteristics of force transmissibility for a passive launch and on-orbit vibration isolation system (PLOVIS-II), which was developed to examine the microvibration attenuation of a spaceborne cryogenic cooler.
Yeon-Hyeok Park, Mun-Shin Jo, Hoon-Young Kim, Hyun-Ung Oh   +3 more
doaj   +1 more source

Modal Analysis and Vibration Mitigation of Twin Bus Seat with Passive Leg Isolation [PDF]

E3S Web of Conferences
This paper presents an integrated experimental and numerical investigation of the vibration characteristics and mitigation strategies for a twin bus seat structure.
Mahbub S.M. Tasnim, Yanesagar Divaneshwaran, Mohamed Zamri   +2 more
doaj   +1 more source

Transmission Of Foundation Vibrations

, 2019
Ground vibrations triggered by machine foundations can influence adjacent structures in both serviceability and durability limit states. In order to control the potential damage to structures in the vicinity of the source, it is important to be able to predict the response of the surrounding soil.
Su, Huize, Psyrras, Nick, Crispin, Jamie J, Karamitros, Dimitris K, Mylonakis, George   +4 more
openaire   +1 more source

Vibration Severity Analysis in a Cabin of a Self-Propelled Sprayer: A Study Considering the Variation in the Forward Speed and the Tire Inflation Pressure in an Ergonomic Context

AgriEngineering
The mechanical vibrations that occur in agricultural machinery, arising from terrain irregularities or the moving parts of the machine, can harm the operators when they are subjected to work for many hours daily over a period of many years.
Maria T. R. Silva, Fábio L. Santos, Rafaella V. Pereira, Francisco Scinocca   +3 more
doaj   +1 more source

A Method for Analyzing Hand-Transmitted Vibration Characteristics in the Hand-Arm Parts When Operating the Portable Pneumatic Extinguisher

Shock and Vibration, 2019
This study presents the vibration transfer characteristics and the vibration absorption power distribution of the specific working condition of a portable pneumatic extinguisher. A hand-transmitted vibration biomechanical model of the hand-arm system was
Jian Wen, Wenkai Ma, Wenbin Li
doaj   +1 more source