On the integration of model-based feature information in Product Lifecycle Management systems

[EN] As CAD models continue to become more critical information sources in the product's lifecycle, it is necessary to develop efficient mechanisms to store, retrieve, and manage larger volumes of increasingly complex data. Because of their unique characteristics, 3D annotations can be used to embed design and manufacturing information directly into a CAD model, which makes models effective vehicles to describe aspects of the geometry or provide additional information that can be connected to a particular geometric element. However, access to this information is often limited, difficult, and even unavailable to external applications. As model complexity and volume of information continue to increase, new and more powerful methods to interrogate these annotations are needed. In this paper, we demonstrate how 3D annotations can be effectively structured and integrated into a Product Lifecycle Management (PLM) system to provide a cohesive view of product-related information in a design environment. We present a strategy to organize and manage annotation information which is stored internally in a CAD model, and make it fully available through the PLM. Our method involves a dual representation of 3D annotations with enhanced data structures that provides shared and easy access to the information. We describe the architecture of a system which includes a software component for the CAD environment and a module that integrates with the PLM server. We validate our approach through a software prototype that uses a parametric modeling application and two commercial PLM packages with distinct data models.This work was supported by the Spanish Ministry of Economy and Competitiveness and the FEDER Funds, through the ANNOTA project (Ref. TIN2013-46036-C3-1-R).Camba, J.; Contero, M.; Company, P.; Pérez Lopez, DC. (2017). On the integration of model-based feature information in Product Lifecycle Management systems. International Journal of Information Management. 37(6):611-621. https://doi.org/10.1016/j.ijinfomgt.2017.06.002S61162137

Permodelan Struktur Gedung 6 Lantai Dengan Menggunakan Aplikasi Autodesk Revit 2018 Untuk Perhitungan Volume

Bangunan mega konstruksi, gedung pencakar langit yang sedang gencar dibangun di seluruh negara, hingga jembatan dengan berbagai macam struktur yang lebih kokoh belum cukup membuat dunia puas. Oleh karea itu, perlu adanya suatu inovasi yang dapat merevolusi industri pembangunan dunia. Salah satunya adalah perkembagan teknologi di bidang AEC (Architecture, Engineering, and Construction) yang mampu mensimulasikan seluruh informasi di dalam proyek pembangunan ke dalam model 3 dimensi (3D) atau yang biasa dikenal dengan BIM (Building Information Modeling). Selama perjalanannya, BIM telah mendapatkan respon yang positif dari masyarakat mengingat keuntungan yang ditawarkan di bidang AEC. Sebab dengan menerapkan BIM dalam dunia konstruksi, maka para developer, konsultan, maupun kontraktor mampu menghemat waktu pengerjaan, biaya yang dikeluarkan, serta tenaga kerja yang dibutuhkan. Dalam pengaplikasiannya, BIM tersebut memang membutuhkan perangkat lunak khusus, seperti Autodesk Revit, ArchiCAD, AECOSim, dan software lainnya. Akan tetapi pada Laporan Kerja Praktek ini akan lebih spesifikasi membahas mengenai perangkat lunak khusus berupa Autodesk Revit. Revit sendiri merupakan software yang dikembangkan oleh Autodesk yang sudah terintegrasi oleh sistem Building Information Modeling (BIM) sehingga dapat membuat model virtual bangunan secara 3 dimensi seperti bangunan sesungguhnya. Dalam suatu aplikasi pasti ada kelebihan dan kekurangan dari program tersubut, sama halnya dengan software Audesk Revit ini. Kelebihan Revit antara lain Design Model 3D Structure, Design Model Arsitektur, Design Instalasi MEP (Mekanikal, Eletricikal, Plumbing), Perhitungan Struktur (Analisa Kekuatan Bngunan), Mmembuat Hitungan Volume untuk Kebutuhan BoQ, Schedule dan Metode. Sedangkan kekurangan Revit adalah terbatas dalam kreasi modeling karena kita harus mencari Family model untuk support design arsitek. Pada laporan ini, akan dilakukan permodelan pada struktur Gedung Bertingkat 6 Lantai dengan menggunakan aplikasi Revit yang sebelumnya sudah terlebih dahulu dilakukan perencanaan sesuai dengan peraturan yang ada, seperti Peraturan Pembebanan Indonesia Untuk Gedung Tahun 1983 (PPIUG 1983), Tata Cara Perencanaan Ketahanan Gempa Untuk Struktur Bangunan Gedung dan Nongedung (SNI 1726-2019), Persyaratan Beton Struktural Untuk Bangunan Gedung (SNI 2847-2019). Dari permodelan yang telah dilakukan, maka diperoleh hasil perhitungan volume sebagai berikut: volume dari pekerjaan kolom adalah 328,3 m³, balok anak 237,36 m³, balok induk 955,8 m³, luivel 6,84 m³, pelat lantai dan atap 1528,16 m³, keramik 8908 m², Tangga 27,8 m³, dinding precast 4165 m², kaca 2476 m², pile cap 582,4 m³, dan tulangan 599788,545 kg/m. ======================================================================================================= Mega construction buildings, skyscrapers that are being built incessantly across the country, and bridges with a variety of stronger structures are not enough to satisfy the world. Therefore, it is necessary to have an innovation that can revolutionize the world development industry. One of them is the development of technology in the field of AEC (Architecture, Engineering, and Construction) which is able to simulate all information in a development project into a 3-dimensional (3D) model or commonly known as BIM (Building Information Modeling). During its journey, BIM has received a positive response from the public considering the advantages offered in the AEC field. Because by implementing BIM in the world of construction, developers, consultants, and contractors are able to save time on work, costs incurred, and the labor required. In its application, BIM does require special software, such as Autodesk Revit, ArchiCAD, AECOSim, and other software. However, this report will discuss more specifications regarding special software in the form of Autodesk Revit. Revit itself is a software developed by Autodesk that has been integrated by the Building Information Modeling (BIM) system so that it can create 3-dimensional virtual models of buildings like real buildings. In an application, there must be advantages and disadvantages of the program, as well as this Audesk Revit software. Revit's strengths include 3D Structure Model Design, Architectural Model Design, MEP Installation Design (Mechanical, Eletrical, Plumbing), Structural Calculation (Building Strength Analysis), Making Volume Counts for BoQ Needs, Schedule and Methods. Meanwhile, the lack of Revit is limited in modeling creations because we have to find a family model to support the design architect. In this report, modeling will be carried out on the 6-storey building structure using the Revit application which previously had been planning in accordance with existing regulations, such as the Indonesian Loading Regulations for Buildings in 1983 (PPIUG 1983), Earthquake Resistance Planning Procedures for Structures. Buildings and Non-Buildings (SNI 1726-2019), Requirements for Structural Concrete for Buildings (SNI 2847-2019). From the modeling that has been done, the results of the volume calculation are as follows: the volume of the column work is 328.3 m³, joist 237.36 m³, main beam 955.8 m³, luivel 6.84 m³, floor and roof slabs 1528 , 16 m³, ceramic 8908 m², stairs 27.8 m³, precast wall 4165 m², glass 2476 m², pile cap 582.4 m³, and reinforcement 599788.545 kg / m

Material Thermal Inputs of Iowa Materials for MEPDG, 2011

The thermal properties of concrete materials, such as coeffi cient of thermal expansion (CTE), thermal conductivity, and heat capacity, are required by the MEPDG program as the material inputs for pavement design. However, a limited amount of test data is available on the thermal properties of concrete in Iowa. The default values provided by the MEPDG program may not be suitable for Iowa concrete, since aggregate characteristics have signifi cant infl uence on concrete thermal properties

Fast, Scalable, and Interactive Software for Landau-de Gennes Numerical Modeling of Nematic Topological Defects

Numerical modeling of nematic liquid crystals using the tensorial Landau-de Gennes (LdG) theory provides detailed insights into the structure and energetics of the enormous variety of possible topological defect configurations that may arise when the liquid crystal is in contact with colloidal inclusions or structured boundaries. However, these methods can be computationally expensive, making it challenging to predict (meta)stable configurations involving several colloidal particles, and they are often restricted to system sizes well below the experimental scale. Here we present an open-source software package that exploits the embarrassingly parallel structure of the lattice discretization of the LdG approach. Our implementation, combining CUDA/C++ and OpenMPI, allows users to accelerate simulations using both CPU and GPU resources in either single- or multiple-core configurations. We make use of an efficient minimization algorithm, the Fast Inertial Relaxation Engine (FIRE) method, that is well-suited to large-scale parallelization, requiring little additional memory or computational cost while offering performance competitive with other commonly used methods. In multi-core operation we are able to scale simulations up to supra-micron length scales of experimental relevance, and in single-core operation the simulation package includes a user-friendly GUI environment for rapid prototyping of interfacial features and the multifarious defect states they can promote. To demonstrate this software package, we examine in detail the competition between curvilinear disclinations and point-like hedgehog defects as size scale, material properties, and geometric features are varied. We also study the effects of an interface patterned with an array of topological point-defects.Comment: 16 pages, 6 figures, 1 youtube link. The full catastroph

Concurrent Design of Embedded Control Software

Embedded software design for mechatronic systems is becoming an increasingly time-consuming and error-prone task. In order to cope with the heterogeneity and complexity, a systematic model-driven design approach is needed, where several parts of the system can be designed concurrently. There is however a trade-off between concurrency efficiency and integration efficiency. In this paper, we present a case study on the development of the embedded control software for a real-world mechatronic system in order to evaluate how we can integrate concurrent and largely independent designed embedded system software parts in an efficient way. The case study was executed using our embedded control system design methodology which employs a concurrent systematic model-based design approach that ensures a concurrent design process, while it still allows a fast integration phase by using automatic code synthesis. The result was a predictable concurrently designed embedded software realization with a short integration time