A Comparative Study of Conventional and FEM-Based Approach for Dynamic Analysis of Large Reciprocating Compressor Foundation Including Soil-Foundation Interaction

2022 ◽  
Vol 27 (1) ◽  
Author(s):  
Kallol Biswas ◽  
Prabir Kumar Paul ◽  
Anindya Roy
Keyword(s):  
Comparative Study ◽  
Dynamic Analysis ◽  
Reciprocating Compressor ◽  
Soil Foundation ◽  
Compressor Foundation

Testing and Analysis of the Dynamic Parameters of 3D Reciprocating Compressor Foundation

2012 ◽  
Vol 204-208 ◽  
pp. 4400-4405
Author(s):  
Xin Lin Wan ◽  
Su Zhang
Keyword(s):  
Vibration Test ◽  
Reciprocating Compressor ◽  
Dynamic Parameters ◽  
Test Results ◽  
Large Size ◽  
Test Technology ◽  
Forced Vibration Test ◽  
Machine Base ◽  
Compressor Foundation ◽  
Data Processing Methods

It is necessary to test dynamics parameters of foundations at construction ground of large-size dynamic machine base. This paper elaborate the test technology and data processing methods on the basis of the block forced vibration test with engineering example, and test results are analyzed and discussed.

The Engineering Properties Comparative Study of Wetlands Soft Soil and Soft Soil of other Genesis

2010 ◽  
Vol 150-151 ◽  
pp. 484-492
Author(s):  
Hong Jun Liu ◽  
Wei Shan ◽  
Yan Qiu Yang ◽  
Chun Jiao Wang ◽  
Ying Guo ◽  
...  
Keyword(s):  
Comparative Study ◽  
Soft Soil ◽  
Engineering Properties ◽  
Mechanical Index ◽  
Consolidation Pressure ◽  
Shearing Strength ◽  
Consolidation Coefficient ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Consolidation Degree

In order to provide technical reference in soft soil foundation treatment for construction of high-grade highway in wetlands soft soil area,by collecting undisturbed soil samples in Qiqihaer-Fuyu section of Jiagedaqi-Beijing highway and using triaxial tests, direct shear test, compressed consolidation testing and other testing methods, a detailed laboratory test and study has been carried out on the soft soil engineering properties and the comparative study on physical and mechanical index, compressed consolidation properties, shearing strength and shearing strength index and so on of wetlands soft soil and other genesis soft soil has been carried out,the results showed that: wetlands soft soil is better than delta soft soil in basic physical and mechanical index; comparing shearing strength parameters of wetlands soft soil and lacustrine soft soil shows that: under smaller consolidation degree and the consolidation pressure, their cohesion decreased with the increase of consolidation degree;with the consolidation degree and the consolidation pressure become bigger, the cohesion of wetlands soft soil is higher than lacustrine soft soil, internal friction angle changed little; Comparing with marine soft soil, the primary consolidation coefficient of wetlands soft soil is bigger and the secondary consolidation coefficient is smaller, that shows the foundation of wetlands soft soil is easy to drainage and consolidation. The research results have guiding significances for treatment of wetland soft soil foundation.

Dynamic Analysis of an Integrated Train–Bridge–Foundation–Soil System by the Substructure Method

2018 ◽  
Vol 18 (05) ◽  
pp. 1850069 ◽  
Author(s):  
Hong Qiao ◽  
He Xia ◽  
Xianting Du
Keyword(s):  
Dynamic Analysis ◽  
Shear Velocity ◽  
Rigid Body Dynamics ◽  
Dynamic Responses ◽  
Superposition Method ◽  
Foundation Soil ◽  
Soil System ◽  
Substructure Method ◽  
Soil Foundation ◽  
Bridge Foundation

The substructure method is applied to the dynamic analysis of a train–bridge system considering the soil–structure interaction. With this method, the integrated train–bridge–foundation–soil system is divided into the train–bridge subsystem and the soil–foundation subsystem. Further, the train–bridge subsystem is divided into the train and bridge components. The frequency-dependent impedance function of the soil–foundation subsystem is transformed into time domain by rational approximation and simulated by a high-order lumped-parameter model with masses. The equations of motion of the train and bridge components are established by the rigid-body dynamics method and the modal superposition method, respectively. Finally, the dynamic responses of the two subsystems are obtained by iterative procedures, with the influence of the soil shear velocity studied. The case study reveals that it is important to consider the effect of soil–foundation interaction in the dynamic analysis of train–bridge systems, but with the increase of the shear velocity of the soil, such influence becomes weaker.

Dynamic analysis of two types of over-crank guillotine shears—a comparative study

1998 ◽  
Vol 83 (1-3) ◽  
pp. 54-61
Author(s):  
V. Ramamurti ◽  
Harish Rajaram ◽  
Mahadevan Balasubramaniam
Keyword(s):  
Comparative Study ◽  
Dynamic Analysis

A Comparative Study on Some Modular Approaches for Analysis and Synthesis of Planar Linkages: Part II — Modular Dynamic Analysis, Modular Structural Synthesis and Modular Kinematic Synthesis

1998 ◽  
Author(s):  
Ting-Li Yang ◽  
Fang-Hua Yao ◽  
Ming Zhang
Keyword(s):  
Structural Analysis ◽  
Comparative Study ◽  
Dynamic Analysis ◽  
Structural Synthesis ◽  
Dynamical Equations ◽  
Kinematic Synthesis ◽  
Automated Generation ◽  
Kinematic Chains ◽  
Analysis And Synthesis ◽  
Planar Linkages

Abstract This paper presents a systematical comparative study of various modular methods based on the different module types: basic kinematic chains (BKCs), single opened chains (SOCs), loops (or a tree and co-tree), links-joints, etc. for analysis and synthesis of structure, kinematics and dynamics of planar linkages. The basic idea is that any linkage can be divided into (or built up by) some modular components in sequence, and based on the component constraints and network entirty constraints of the linkage, the unified modular approaches have been used for analysis and synthesis. In systematical comparative study, the main issues of a modular method have been discussed, such as: the topological characteristics revealed via different module types; the dimension of a set of kinematic equations; the automated generation and solution of kinematic equations; the dimension and automated generation of dynamical equations, and computation complexity for generating and solving dynamical equation; the automated generation of structural analysis and type synthesis; the generation of kinematic synthesis equations etc.. This paper gives a summary of the use of modular techniques for analyzing and synthesizing planar linkages in the recently thirty years. This comparative study includes two parts: Part I-modular structural analysis and modular kinematic analysis; Part II-modular dynamic analysis, modular structural synthesis and modular kinematic synthesis. This paper is the second part.

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