Results 261 to 270 of about 219,485 (307)

Multi-state balanced systems in a shock environment

Reliability Engineering and System Safety, 2020
Abstract Reliability analysis of balanced systems has become an important research topic. In previous studies, a balanced system only has two states, i.e., perfect functioning and complete failure. However, most practical systems have more than two states because of the complex system structure and complicated working environment.
Xian Zhao, Xiaoyue Wang
exaly   +2 more sources

Shipboard Shock Environment and Its Measurement

The Shock and Vibration Digest, 1976
The design and acceptance of machinery and equipment for shipboard use requires knowledge of the shock environment produced by noncontact underwater explosions. Structural and response considerations preclude accurate prediction of this environment without experimental confirmation.
M. W. Oleson, R. O. Belsheim
openaire   +1 more source

Burn-in for Systems Operating in a Shock Environment

IEEE Transactions on Reliability, 2011
Burn-in is a widely used engineering method to eliminate defective items before they are shipped to customers or put into field operation. Burn-in procedures are usually applied to items with high initial failure rate which operate under a static operational environment.
Ji Hwan Cha, Maxim Finkelstein
openaire   +1 more source

Shock Waves in Space Environments

AIP Conference Proceedings, 2009
We present results on two topics: a) The three‐dimensional (3D) Hybrid Heliospheric Modeling System with Pickup Ions (HHMS‐PI) simulations of shock waves and initial comparisons with ACE and Ulysses data for the Halloween 2003 solar events, including the Ulysses SWICS pickup proton densities; and b) Our analyses of Voyager 2 (V2) data near the ...
Devrie S. Intriligator, Thomas Detman, James Intriligator, Christine Gloeckler, Wei Sun, W. David Miller, William R. Webber, Murray Dryer, Xianzhi Ao, Gary Zank Ross Burrows   +9 more
openaire   +1 more source

“Shock and Awe” and the Environment

Peace Review, 2007
“Shock and Awe” is the celebrated expression used to characterize the initiation of the American invasion in Iraq, a spectacular show of force and strength that lit up the sky like a fire‐works ext...
openaire   +1 more source

Shock model in Markovian environment

Naval Research Logistics (NRL), 2005
AbstractA Markov modulated shock models is studied in this paper. In this model, both the interarrival time and the magnitude of the shock are determined by a Markov process. The system fails whenever a shock magnitude exceeds a pre‐specified level η.
Li, Gang, Luo, Jiaowan
openaire   +1 more source

Shock Environment Characterization Using Shock Response Spectra

2019
This chapter introduces the shock response spectrum, or SRS, as one of the fundamental tools in shock analysis. Shock is a transient phenomenon requiring specialized tools and analysis techniques. The shock response spectrum provides information about the spectral content of the transient signal.
Carl Sisemore, Vít Babuška
openaire   +1 more source

Modeling of MEMS reliability in shock environments

Proceedings. 7th International Conference on Solid-State and Integrated Circuits Technology, 2004., 2005
To determine the reliability of MEMS devices in shock environments, in this paper, we present a method that can be used to formulate the responses of microcantilever under shock loads by taking it as a distributed-parameter system. The displacements and stresses of microcantilever are formulated with the mode superposition method. The failure modes may
null Xu-Wen Fang, null Qing-An Huang, null Jie-Ying Tang   +2 more
openaire   +1 more source

Economic shocks and the global environment [PDF]

, 1992
Policy formulation in most countries is complicated by the role of the external economic environment, especially during periods of great external shocks. The authors examine how individual countries were affected by, and responded to, external shocks. They apply an enhanced version of an earlier methodology for estimating the effect of three kinds of ...
McCarthy, F. Desmond, Dhareshwar, Ashok
openaire  

Common Mechanical Shock Environments

2019
Mechanical shock events are as varied as the systems they influence. Shocks can occur in many forms, with many different dynamic parameters. While mechanical shocks can be varied in their sources and characteristics, many similarities do exist and the same analysis techniques are applicable to all types of mechanical shock events. This chapter provides
Carl Sisemore, Vít Babuška
openaire   +1 more source