Results 101 to 110 of about 156,516 (318)

Some observations regarding the vibrational environment in child safety seats

, 2000
A growing issue in the area of Vehicular Ride Comfort is that of child safety seats. Postural, thermal and vibrational comfort considerations are finding their way into child seat design.
Giacomin, J
core   +1 more source

Vibration Characteristics Analysis of the Header Assembly of Combine Harvester Under Multi-Source Coupled Excitation

Agriculture
The vibration of the combine harvester header assembly directly affects harvesting efficiency and operational quality. To address the insufficient dynamic characterization of the cantilever conveying trough under complex field excitations, this study ...
Qi He, Liquan Tian, Pengfei Qian, Zhong Tang, Zhaoming Zhang, Ting Lu   +5 more
doaj   +1 more source

Research on vibration characteristics of a bicycle with two infants (2nd report, effect of both the infant's weight and bicycle's specifications on occupants)

Nihon Kikai Gakkai ronbunshu, 2015
This paper describes the effect of vibration characteristics on a bicycle-rider-two infants system when the weight of infants and the seat position are changed.
Shinichiro OTA, Shuji NISHIYAMA, Taiki SHINOHARA   +2 more
doaj   +1 more source

Frequency Characteristics of Electro-hydraulic Vibrator

Journal of UOEH, 2002
Frequency characteristics of an electro-hydraulic vibrator were measured using two kinds of test signals. First, sine signals had theoretically 1.0 m/s2 (root-mean-square) in the frequency range from 1 to 16 Hz at single axis. The frequency characteristics were flat from 1 to 12 Hz, but 14, 16 Hz was considerably poor.
openaire   +3 more sources

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

The effect of different combinations of boundary conditions on the average radiation efficiency of rectangular plates [PDF]

, 2014
The boundary conditions of a vibrating plate are known to have an influence on its sound radiation for frequencies below the critical frequency. To investigate this effect in a systematic way, the average radiation efficiency and radiated power are ...
Squicciarini, G., D. J. Thompson, Corradi, R., CORRADI, ROBERTO, Thompson, D.J., G. Squicciarini   +5 more
core   +1 more source

Research on the Characteristics and Comprehensive Mitigation Measures of Vibration and Acoustic Environment in Building Clusters Above Metro Depots

Buildings
Taking a metro over-track TOD (Transit-Oriented Development) project in Chongqing as the engineering background, this study adopts a combined research approach integrating field measurements and numerical simulation. A coupled finite element model of the
Jian Li, Xiaohong Xue, Jian Wang, Wanliang Kang, Boyang Zhang, Zhengye Huang, Yuan Mei, Xin Ke   +7 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Flexural–torsional coupled vibration and buckling of thin-walled open section composite beams using shear-deformable beam theory

, 2009
A general analytical model based on shear-deformable beam theory has been developed to study the flexural–torsional coupled vibration and buckling of thin-walled open section composite beams with arbitrary lay-ups.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Benchmark footbridge for vibration serviceability assessment under vertical component of pedestrian load [PDF]

, 2012
Vibration serviceability criteria are governing the design and determining the cost of modern, slender footbridges. Efficient and reliable evaluation of dynamic performance of these structures usually requires a detailed insight into the structural ...
Živanović, Stana
core   +1 more source