Earthwork Actuarial Software System Design and Development

2011 ◽  
Vol 267 ◽  
pp. 578-583
Author(s):  
Qiao Mei Su ◽  
Jian Min Wang ◽  
Jiao Jiao Guo
Keyword(s):  
Scientific Method ◽  
Model Building ◽  
Three Dimensional ◽  
Complex Form ◽  
Observation Data ◽  
Software System ◽  
Three Dimensional Model ◽  
Volume Calculation ◽  
Engineering Construction ◽  
Special Software

Earthwork is an important content in engineering construction. This paper explores a scientific method of earthwork calculation, designs and develops corresponding software which accurately calculates the earthwork, effectively reduces engineering investment and budget deviation. It mainly studies the three-dimensional model building by the complex form through two period observations. The model building methodology mainly adopts the elevation of two period observation data`s mutual insertion to establish the two period superposition triangle net. And then getting the method of calculating tri-prism volume formed by triangular. This method, the volume calculation principle is simple, high precision, and the design of the special software system is based on the above method. At present, the software system applies in the engineering, and it has computational fast, convenient, results accuracy and reliable etc., advantages.

3D reconstruction and calculation of surface area and volume of bell pepper

2007 ◽  
Vol 3 (1) ◽  
pp. 89-113
Author(s):  
Zoltán Gillay ◽  
László Fenyvesi
Keyword(s):  
3D Reconstruction ◽  
Surface Area ◽  
Three Dimensional ◽  
Reference Method ◽  
Bell Pepper ◽  
Three Dimensional Model ◽  
Acceptable Error ◽  
Volume Calculation ◽  
Bell Peppers ◽  
Area And Volume

There was a method developed that generates the three-dimensional model of not axisymmetric produce, based on an arbitrary number of photos. The model can serve as a basis for calculating the surface area and the volume of produce. The efficiency of the reconstruction was tested on bell peppers and artificial shapes. In case of bell peppers 3-dimensional reconstruction was created from 4 images rotated in 45° angle intervals. The surface area and the volume were estimated on the basis of the reconstructed area. Furthermore, a new and simple reference method was devised to give precise results for the surface area of bell pepper. The results show that this 3D reconstruction-based surface area and volume calculation method is suitable to determine the surface area and volume of definite bell peppers with an acceptable error.

Three-Dimensional FEM Analysis of Sensitive Mechanism of Airflow Level Posture Sensor Based on Thermoelectric Coupling

2011 ◽  
Vol 271-273 ◽  
pp. 211-215
Author(s):  
Ming Ming Ji ◽  
Lin Hua Piao ◽  
Bai Hua Li
Keyword(s):  
Finite Element ◽  
Model Building ◽  
Three Dimensional ◽  
Fem Analysis ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Equation Solving ◽  
Dimensional Modeling ◽  
Element Simulation ◽  
Simulation Based

Using ANSYS program, the finite element simulation based on thermoelectric coupling is conducted by a series of procedures, such as three-dimensional model building of airflow level posture sensor according to the actual size of the proportion, network modifying, loads applying and equation solving. The sensitive mechanism of airflow level posture sensor is explained by finite element method. The numerical results show that compared with two-dimensional modeling, the simulation result of three-dimensional modeling and thermoelectric analysis methods are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.

scholarly journals Research on Application of Full Attribute 3D Design Model in Engineering

2021 ◽  
Vol 294 ◽  
pp. 02002
Author(s):  
Xinqian Xu ◽  
Rui Xia ◽  
Lai Xu ◽  
Xiwen Hu
Keyword(s):  
3D Model ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Process Data ◽  
3D Design ◽  
Engineering Construction ◽  
Data Application ◽  
Construction Operation ◽  
Research On Application ◽  
Calculation Analysis

In order to take full advantages of the integration of 3D technology graphics and data, this paper proposes the concept of a full-attribute 3D model that satisfies the full-process data application of substation engineering construction. All stages of engineering construction extract the required data from the full-attribute 3D model for calculation, Analysis, statistics, management and other functions, to achieve all-round coverage of three-dimensional data information from design to construction and construction management, laying the foundation for data circulation and management of the entire life cycle of substation projects. A method of applying a full-attribute three- dimensional model for construction, operation and maintenance management is proposed, which lays a foundation for the realization of refined, digital and intelligent project management.

scholarly journals PHOTOGRAMMETRIC METHOD OF FORENSIC PHOTOGRAPHY Artem Kovalenk

2020 ◽  
Keyword(s):  
3D Model ◽  
Three Dimensional ◽  
Digital Camera ◽  
Criminal Proceedings ◽  
Three Dimensional Model ◽  
Forensic Photography ◽  
Computer Image Processing ◽  
Special Software ◽  
Photogrammetric Method ◽  
Special Rules

The article is devoted to defining the essence and directions of application of the photogrammetric method of forensic photography in criminal proceedings. It is determined that the photogrammetric method of forensic photography is to photograph objects according to special rules in order to further measure them on the obtained images. It is determined that the photogrammetric method of judicial photography consists in photographing objects according to special rules in order to perform their further measurements using the obtained images. The method of measuring objects using a single image is called monophotogrammetric and is known in the theory of forensic photography as measuring (scale) method; using a pair of images is called stereophotogrammetric (known as stereoscopic); measurement with more than two images is a polyphotogrammetric method. As a result of polyphotogrammetric fixation of an object with the help of a serial digital camera and computer image processing, it is possible to obtain its high-quality geometrically accurate textured three-dimensional model. Objects of different sizes, from micro-objects, to entire buildings or areas, interiors can be scanned with polyphotogrammetric method. The 3D model of the scanned object reconstructed as a result of polyphotogrammetric photography and software processing can be saved in a number of conventional formats in electronic form, viewed and researched using special software. The rules and algorithm of polyphotogrammetric scaning are given, the process of reconstruction of 3D model on the basis of received images is described. The advantages of the researched method of forensic photography are its non-invasiveness, clarity and accuracy of the obtained models, wide possibilities of their use and research.

Computer Aided Protein Design: Three Dimensional Model Building of the Saruplase Structure

1991 ◽  
pp. 159-166
Author(s):  
W. Straßburger ◽  
W. Winter ◽  
G. J. Steffens ◽  
W. A. Günzler ◽  
L. Flohé
Keyword(s):  
Protein Design ◽  
Model Building ◽  
Three Dimensional ◽  
Dimensional Model ◽  
Three Dimensional Model ◽  
Computer Aided

Three-Dimensional FEM Analysis of Effect of Acceleration on Airflow Level Posture Sensor

2011 ◽  
Vol 271-273 ◽  
pp. 220-224
Author(s):  
Ming Ming Ji ◽  
Lin Hua Piao ◽  
Bai Hua Li
Keyword(s):  
Flow Field ◽  
Model Building ◽  
Three Dimensional ◽  
Fem Analysis ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Equation Solving ◽  
Dimensional Modeling ◽  
Element Simulation ◽  
Hermetic Chamber

Using ANSYS-FLOTRAN CFD program, the finite element simulation is conducted by means of a series of procedures, such as three-dimensional model building of airflow level posture sensor, network modifying, loads applying equation solving, the flow field in three-dimensional hermetic chamber of sensitive element of airflow level posture sensor in different acceleration and inclination is Calculated, The numerical results show that for the sensor of airflow level posture sensor, the effect of acceleration and inclination is similar. Both of them can change the flow field of sensor, and will output a corresponding voltage. The simulation result of three-dimensional modeling is more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.

Study on the Airflow Level Posture Sensor Based on Fluid-Solid Coupling

2011 ◽  
Vol 268-270 ◽  
pp. 636-639
Author(s):  
Ming Ming Ji ◽  
Lin Hua Piao ◽  
Bai Hua Li
Keyword(s):  
Tilt Angle ◽  
Model Building ◽  
Three Dimensional ◽  
Three Dimensional Model ◽  
Three Dimensional Modeling ◽  
Equation Solving ◽  
Dimensional Modeling ◽  
Element Simulation ◽  
Hermetic Chamber ◽  
The Difference

Using ANSYS program, the finite element simulation based on Fluid-Solid coupling is conducted by a series of procedures, such as three-dimensional model building of airflow level posture sensor according to the actual size of the proportion, network modifying, loads applying and equation solving. The flow field in three-dimensional hermetic chamber of sensitive element of airflow level posture sensor is calculated. The numerical results show that: 1) The velocity difference of air flow at two heat source changes with the tilt angle, the difference between airflow velocity increases with the increase of the tilt angle. 2)Compared with two-dimensional modeling, the simulation result of three-dimensional modeling and fluid-solid analysis methods are more comprehensive and accurate, which provides more reliable basis for practical research of the airflow level posture sensor.

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