scholarly journals Integrated Use of 3D Modelling tools and Virtual Reality to facilitate Design

2019 ◽  
Author(s):  
D Leahy ◽  
C Vance
Keyword(s):  
Virtual Reality ◽  
3D Model ◽  
Body Movement ◽  
Human Head ◽  
Design Decisions ◽  
Weapon Systems ◽  
Design Engineers ◽  
Unity 3D ◽  
Cad Models ◽  
Ship Movement

The technologies of: Anthropometric Modelling, Game Engine animation and Virtual Reality were integrated to facilitate early design decisions in the design of future Naval weapon systems and their integration into current and future Naval platforms. CAD Models of existing or future ships were imported into a 3D Games engine (Unity) along with CAD Models from the ship architect/designer of specific compartments where weapon system installations were proposed. Extremes of the user population (e.g. 3rd percentile Navy female and 97th percentile Navy male) were modelled performing the installation / maintenance tasks on the equipment and this was then exported/imported into the 3D Unity environment and viewed from predefined eye height perspectives. Within the Unity 3D environment, realistic dynamic aspects of the real world were added – e.g. ship movement in light or heavy seas as well as consequent human head / body movement (compensating for ship movement) and the effects that this may have on the task. In addition weather and visibility effects can be added which may affect the user’s ability to perform the tasks. Design engineers viewing the model in VR were able to get a sense of the distances / gaps / access from within the 3D model itself and make/feedback design recommendations from the unique perspective of being immersed within the design itself.

scholarly journals Solid Modelling Interaction with Sensors for Virtual Reality Welding

2018 ◽  
Vol 144 ◽  
pp. 01008 ◽  
Author(s):  
V. G. Bharath ◽  
Rajashekar Patil
Keyword(s):  
Virtual Reality ◽  
Augmented Reality ◽  
Movement Control ◽  
Solid Modelling ◽  
Input Output ◽  
Dynamic Constraints ◽  
Unity 3D ◽  
Input And Output ◽  
Cad Models ◽  
Motion Characteristic

The imperative part of strong displaying in virtual reality framework is to improve the movement of a user with definitive movement control in genuine intelligent condition. In a real environment motion characteristic is based on sensors and servomechanisms where as in virtual reality systems the motion fundamentals are kinematic in nature. To achieve physically correct interactivity suitable dynamic constraints, should be imposed which can be obtained by augmented reality interface. Beyond input and output hardware, the underlying software plays a very important role in virtual reality systems. It is responsible for the managing of input/output devices, analysing incoming data and generating proper feedback. This research paper focusses on movement displaying for connection between CAD models and Virtual Reality Models using 3ds Max 2017 and Unity 3d softwares. The paper portrays different equipment arrangement of sensors and Arduino for virtual reality welding.

scholarly journals Implementasi Virtual Reality Pada Tur Virtual Monumen Nasional Menggunakan Unity 3D Algoritma Greedy Berbasis Android

2018 ◽  
Vol 3 (2) ◽  
Author(s):  
Ilham Rizaldy ◽  
Ina Agustina ◽  
Fauziah Fauziah
Keyword(s):  
Virtual Reality ◽  
3D Modeling ◽  
3D Model ◽  
Unity 3D ◽  
3D Engine

Museum merupakan salah satu tujuan wisata yang paling diminati. Setiap daya tarik museum akan sejarah tentu memiliki berbagai objek yang tersebar di kawasan wisata, sehingga pariwisata berkewajiban memberikan informasi mengenai tentang lokasi Museum Monumen Nasional, dan proses manual masih kurang interaktif sehingga memberikan kesempatan untuk membuat aplikasi virtual tours 3D pada smartphone berbasis android, yang bisa membantu memberikan informasi seperti peta pada turis. Situs dan atraksi yang ada dikawasan wisata dengan tampilan virtual 3D. Model 3D dari setiap lokasi wisata turis yang dibuat dengan menggunakan aplikasi Blender 3D Modeling, tampil dalam aplikasi yang dibuat dengan Unity 3D Engine. Proses Rekayasa Perangkat Lunak (RPL) prototyping model yang merupakan metodologi yang digunakan dalam penelitian ini. Hasil aplikasi tersebut memungkinkan pengguna untuk mengetahui sejarah dan bangunan di Museum Monumen Nasional, dan wisatawan dapat menjelajahi virtual 3D dengan menggunakan smartphone berbasis android.

Rancang Bangun Aplikasi Simulasi Manasik Haji Berbasis Virtual 3D

Sainteks ◽  
2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Pajar Sidiq ◽  
Hindayati Mustafidah
Keyword(s):  
Virtual Reality ◽  
Game Engine ◽  
3D Game ◽  
Unity 3D

Haji merupakan rukun Islam yang kelima yang wajib dilaksanakan oleh seorang muslim yang telah mampu melaksanakannya. Manasik haji pada dasarnya adalah memberikan pelajaran atau informasi mengenai tata cara melaksanakan ibadah haji, sehingga tidak hanya terbatas pada calon jama’ah haji, biasanya masyarakat beragama muslim mempelajari tata cara melaksanakan ibadah haji dengan menggunakan buku-buku atau dengan cara memperagakan langsung dengan cara mensimulasikan tata cara ibadah haji sesuai dengan kondisi yang sebenarnya. Namun banyak kalangan masyarakat muslim yang enggan mendalami manasik haji, dikarenakan beberapa hal seperti tidak adanya waktu, dan kurangnya minat mempelajari dikarenakan kurang menarik dan tidak praktis. Dari hal tersebut sehingga muncul ide untuk membuat aplikasi simulasi manasik haji berbasis virtual 3D, aplikasi ini berisi tentang simulasi untuk rukun haji. Aplikasi manasik haji berbasis virtual reality ini dirancang dan dibuat dengan menggunakan software 3Ds Max dan unity 3D Game Engine. Hasil penelitian berupa aplikasi manasik haji yang dapat menampilkan simulasi virtual reality, yang meliputi simulasi tiba di bandara, Wukuf di Arafah, Mabit di Muzdalifah, Mabit di Mina, Jumrah, Tawaf, Sa’i dan simulasi Tahallul. Dengan adanya aplikasi ini diharapkan akan terjadi peningkatan minat masyarakat dalam mempelajari tata cara pelaksanaan ibadah haji.Kata kunci : virtual reality, manasik haji, simulasi, 3D.

Assessing Convergence in Predictions of Periodic-Unsteady Flowfields

2006 ◽  
Author(s):  
J. P. Clark ◽  
E. A. Grover
Keyword(s):  
Cross Correlation ◽  
Unsteady Flows ◽  
Digital Signal ◽  
Design Decisions ◽  
Time Resolved ◽  
Design Engineers ◽  
Cross Correlations ◽  
Parseval’S Theorem ◽  
Hot Streak

Predictions of time-resolved flowfields are now commonplace within the gas-turbine industry, and the results of such simulations are often used to make design decisions during the development of new products. Hence it is necessary for design engineers to have a robust method to determine the level of convergence in design predictions. Here we report on a method developed to determine the level of convergence in a predicted flowfield that is characterized by periodic-unsteadiness. The method relies on fundamental concepts from digital signal processing including the discrete Fourier transform, cross-correlation, and Parseval’s theorem. Often in predictions of vane-blade interaction in turbomachines, the period of the unsteady fluctuations is expected. In this method, the development of time-mean quantities. Fourier components (both magnitude and phase), cross-correlations, and integrated signal power are tracked at locations of interest from one period to the next as the solution progresses. Each of these separate quantities yields some relative measure of convergence that is subsequently processed to form a fuzzy set. Thus the overall level of convergence in the solution is given by the intersection of these sets. Examples of the application of this technique to several predictions of unsteady flows from two separate solvers are given. These include a prediction of hot-streak migration as well as more typical cases. It is shown that the method yields a robust determination of convergence. Also, the results of the technique can guide further analysis and/or post-processing of the flowfield. Finally, the method is useful for the detection of inherent unsteadiness in the flowfield, and as such it can be used to prevent design escapes.

scholarly journals HeMoG: A White-Box Model to Unveil the Connection between Saliency Information and Human Head Motion in Virtual Reality

2021 ◽  
Author(s):  
Miguel Fabian Romero Rondon ◽  
Dario Zanca ◽  
Stefano Melacci ◽  
Marco Gori ◽  
Lucile Sassatelli
Keyword(s):  
Virtual Reality ◽  
Human Head ◽  
Box Model ◽  
Head Motion

Study of Virtual Scene Interaction Based on VRML and 3DS Max

2015 ◽  
Vol 713-715 ◽  
pp. 2345-2347 ◽  
Author(s):  
Yang Kuang ◽  
Jie Jiang
Keyword(s):  
Virtual Reality ◽  
3D Model ◽  
Virtual Scene

3DS MAX has a capacity of producing visual 3D model, VRML is a kind of Virtual Reality Language. The combination of the two can construct virtual scene and realize interaction between user and virtual scene. This paper introduces the method of using VRML combined with 3DS MAX to achieve dynamic interactive virtual scene, Study on several interactive modes in VRML.

The Principle and Process of Digital Fabrication of Biomedical Objects

2018 ◽  
pp. 505-520
Author(s):  
S. H. Choi ◽  
H. H. Cheung ◽  
W. K. Zhu
Keyword(s):  
Virtual Reality ◽  
Biomedical Engineering ◽  
Virtual Prototyping ◽  
Digital Fabrication ◽  
Manufacturing Processes ◽  
Body Parts ◽  
Human Organs ◽  
Cad Models ◽  
Traditional Manufacturing ◽  
Bone Structures

Biomedical objects are used as prostheses to repair damaged bone structures and missing body parts, as well as to study complex human organs and plan surgical procedures. They are, however, not economical to make by traditional manufacturing processes. Researchers have therefore explored the multi-material layered manufacturing (MMLM) technology to fabricate biomedical objects from CAD models. Yet, current MMLM systems remain experimental with limited practicality; they are slow, expensive, and can only handle small, simple objects. To address these limitations, this chapter presents the multi-material virtual prototyping (MMVP) technology for digital fabrication of complex biomedical objects cost-effectively. MMVP integrates MMLM with virtual reality to fabricate biomedical objects for stereoscopic visualisation and analyses to serve biomedical engineering purposes. This chapter describes the principle of MMVP and the processes of digital fabrication of biomedical objects. Case studies are presented to demonstrate these processes and their applications in biomedical engineering.

Design and Implementation of Virtual Roaming Based on Unity3D

2014 ◽  
Vol 1079-1080 ◽  
pp. 837-842
Author(s):  
Sha Liang
Keyword(s):  
Virtual Reality ◽  
Rapid Development ◽  
Virtual Reality Technology ◽  
Body Experience ◽  
Key Technology ◽  
Virtual Scene ◽  
3D Rendering ◽  
Design And Implementation ◽  
Unity 3D ◽  
Rendering Engine

Along with the rapid development,3D virtual reality technology has been applied more and more widely. In order to display the virtual scene better and make user an immersed body experience, 3D rendering engine plays a key role in this field. Unity 3d is a professional gaming rendering engine with strong compatibility and comprehensive integration. In this paper, we focus on the Unity 3D rendering engine, and describe the basic workflow of virtual roaming. We discuss the key technology to realize outdoor roaming through Unity 3D and optimization.

Sign in / Sign up

Export Citation Format

Share Document