A Design/Analysis Method of Gasketed Bolted Joints for Noise/Vibration Control

1995 ◽  
Author(s):  
James R. Zwick ◽  
Zhi Quan Hu ◽  
Gary Novak
Keyword(s):  
Vibration Control ◽  
Design Analysis ◽  
Bolted Joints ◽  
Analysis Method ◽  
Noise Vibration

scholarly journals Feasibility of a Transient Dynamic Design Analysis Method

1994 ◽  
Vol 1 (3) ◽  
pp. 241-251
Author(s):  
Patrick F. Cunniff ◽  
George J. O’Hara
Keyword(s):  
Degrees Of Freedom ◽  
Time History ◽  
Design Analysis ◽  
Analysis Method ◽  
Dynamic Design ◽  
Fixed Base ◽  
Design Values ◽  
Rigid Mass ◽  
Comparison Of The Results ◽  
Three Degrees Of Freedom

This article addresses the degree of success that may be achieved by using simple equipment–vehicle models that produce time history responses whose equipment fixed base modal maximum response values are equivalent to those found in the U.S. Navy's dynamic design analysis method. The criteria of success is measured by a comparison of the results with typical interim shock design values. The equipment models reported are limited to two- degree and three degrees of freedom systems; the model of the vehicle to which the equipment is attached consists solely of a rigid mass and an elastic spring; and the shock excitation is produced by an ideal impulse that is applied to the vehicle mass.

Shock Analysis and Design Method of Vibration Isolating System in the Time Domain

2005 ◽  
Author(s):  
Yinglong Zhao ◽  
Lin He ◽  
Zhiqiang Lv ◽  
Yu Wang
Keyword(s):  
Dynamic Analysis ◽  
Time Domain ◽  
Design Analysis ◽  
Analysis Method ◽  
Maximum Displacement ◽  
Element Analysis ◽  
Protection Measures ◽  
Analysis And Design ◽  
Shock Protection ◽  
The Time Domain

Choosing the equipment with good shock-resistant performance and taking shock protection measures while designing the onboard settings, the safety of onboard settings can be assured when warships, especially submarine subjected to non-contact underwater explosion, that is, these means can be used to limit the rattlespace (i.e., the maximum displacement of the equipment relative to the base) and the peak acceleration experienced by the equipment. Using shock-resistant equipments is one of shock protection means. The shock-resistant performance of the shock-resistant equipments should be verified in the design phase of the equipments. The shock design analysis methods used before and now includes shock design number method (static g-method), dynamic analysis in the time domain and dynamic design analysis method (DDAM). The FEA (Finite Element Analysis) software, for example, MSC.NASTRAN®, can be used for shock design analysis of the shock-resistant equipments. MSC.NASTRAN are used for shock design analysis of floating raft vibration isolating equipment with dynamic analysis method in the time domain in this paper, and the analysis results are in agreement with the test results. The shock design analysis method used in this paper can be used to analyze the shock-resistant performance of onboard shock-resistant equipments.

Sign in / Sign up

Export Citation Format

Share Document