Industrial Filter Device, Germany

Structures Analyzed with Dlubal Software

  • Customer project

Customer Project

The project for designing a filter/dryer device including agitator required a complete stress and deformation analysis in RFEM. A special design challenge represented the complex modeling of the structue having 1,424 surfaces, 158 solids and 425 members.

Structural Engineering Peter & Partner
Ingenieur- und Sachverständigengesellschaft für Strukturmechanik, Much, Germany
www.ifs-peter-partner.de

Model

Model Input

The filter was modeled with linear elastic shell and solid elements. It consists of the following main structural components:

  • Floor slab
  • Filter bottom
  • Container wall with torispherical head and ring flange applied at bottom
  • Brackets on container wall
  • Support plate for agitator
  • Pipe connection and lifting eyes on torispherical head
  • Circulating serpentine pipes

The connection of container and floor slab has been especially interesting for the modeling process. The ring flange was applied in the form of a solid element to the bottom of the tank plate. It was fixed to the floor slab with 53 clamping bolts M 27.

They were uniformly distributed around the circumference to ensure a constant prestressing force. In order to anchor the ring flange against the floor slab with defined prestress forces, a circulating counter element was modeled as solid element on the tank wall. Thus, it was possible to clamp the container flange against the conical floor slab.

To reproduce this conical fastening in RFEM, it was necessary to define the contact property between these structural components in the analysis model. Contact solid elements defining an elastic spring were distributed uniformly around the circumference.

Loading

The following loads were applied to the structure:

  • Design pressure for container -1/6 bar, heating for flat bottom -1/10 bar, heating coil -1/10 bar
  • Vertical loads due to self-weight and equipment
  • Design temperature -20/200 °C
  • Internal positive and negative pressure with design of pressure fluctuations from 0.0 to 3.0 bar for 28,000 cycles of load according to AD‑S1 and S2
  • Agitator loads for 2 millions stress cycles

Calculation in RFEM

Five load groups were created from the single load cases and the FE‑mesh was generated. Then the internal forces, stresses and deformations were determined in RFEM.

In addition to the general stress analysis, fatigue designs due to pressure fluctuations and agitator loading were performed.

Write Comment...

Write Comment...

  • Views 1079x
  • Updated 11/30/2020

Contact us

Contact Dlubal

Do you have questions or need advice?
Contact our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.

(267) 702-2815

info-us@dlubal.com

Online Training | English

RFEM for Students | USA

Online Training 04/21/2021 1:00 PM - 4:00 PM CDT

Online Training | English

RFEM | Basics

Online Training 04/23/2021 8:30 AM - 12:30 PM CEST

Online Training | English

RFEM | Timber | USA

Online Training 05/05/2021 1:00 PM - 4:00 PM CDT

Online Training | English

Eurocode 3 | Steel structures according to DIN EN 1993-1-1

Online Training 05/06/2021 8:30 AM - 12:30 PM CEST

Timber structures | Part 2: design

Timber Beam and Surface Structures | Part 2: design

Webinar 05/11/2021 2:00 PM - 2:45 PM CEST

Online Training | English

Eurocode 2 | Concrete structures according to DIN EN 1992-1-1

Online Training 05/12/2021 8:30 AM - 12:30 PM CEST

Online training | English

RFEM for Students | Part 2

Online Training 05/17/2021 2:00 PM - 4:30 PM CEST

Online training | Arabic

RFEM | Basics | Arabic

Online Training 05/20/2021 8:30 AM - 12:30 PM CEST

Online Training | English

Eurocode 5 | Timber structures according to DIN EN 1995-1-1

Online Training 05/20/2021 8:30 AM - 12:30 PM CEST

Online Training | English

RFEM | Structural dynamics and earthquake design according to EC 8

Online Training 06/02/2021 8:30 AM - 12:30 PM CEST

Online training | English

RFEM for Students | Part 3

Online Training 06/15/2021 2:00 PM - 4:30 PM CEST

Online Training | English

RFEM | Basics | USA

Online Training 06/17/2021 9:00 AM - 1:00 PM CDT

Plate and Shell Buckling Utilizing Dlubal Software

Plate and Shell Buckling Utilizing Dlubal Software

Webinar 03/30/2021 2:00 PM - 2:45 PM CEST

CSA S16:19 Steel Design in RFEM

CSA S16:19 Steel Design in RFEM

Webinar 03/10/2021 2:00 PM - 3:00 PM CDT

The Most Common User Errors With RFEM and RSTAB

The Most Common User Errors With RFEM and RSTAB

Webinar 02/04/2021 2:00 PM - 3:00 PM CET

ADM 2020 Member Design in RFEM

ADM 2020 Member Design in RFEM

Webinar 01/19/2021 2:00 PM - 3:00 PM CDT

Dlubal Info Day

Dlubal Info Day Online | December 15, 2020

Webinar 12/15/2020 9:00 AM - 4:00 PM CET

FEA Troubleshooting and Optimization in RFEM

FEA Troubleshooting and Optimization in RFEM

Webinar 11/11/2020 2:00 PM - 3:00 PM CDT

Soil-Structure Interaction in RFEM

Soil-Structure Interaction in RFEM

Webinar 10/27/2020 2:00 PM - 2:45 PM CET

NBC 2015 Modal Response Spectrum Analysis in RFEM

NBC 2015 Modal Response Spectrum Analysis in RFEM

Webinar 09/30/2020 2:00 PM - 3:00 PM CDT

Documenting Results in the RFEM Printout Report

Webinar 08/25/2020 2:00 PM - 2:45 PM CEST

ACI 318-19 Concrete Design in RFEM

ACI 318-19 Concrete Design in RFEM

Webinar 08/20/2020 2:00 PM - 3:00 PM CDT

RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

Price of First License
3,540.00 USD