• Latest
  • Trending
  • All
  • Capacitors
  • Resistors
  • Inductors
  • Filters
  • Fuses
  • Non-linear Passives
  • Applications
  • Integrated Passives
  • Oscillators
  • Passive Sensors
  • New Technologies
  • Aerospace & Defence
  • Automotive
  • Industrial
  • Market & Supply Chain
  • Medical
  • RF & Microwave
  • Telecommunication

How can failures in vibration tests be avoided?

3.6.2019

TAIYO YUDEN Launches Wire-Wound Automotive Power Inductors

16.5.2022

Skeleton Announces Agreement with Polish ZPUE for Rail Energy Storage Solutions

16.5.2022

European Electronic Components Distribution Under Strong Demand and Allocation in Q1 2022

16.5.2022

Tecate Releases Small-Cell 3V Supercapacitors

16.5.2022
  • Home
  • Privacy Policy
  • EPCI Advertisement & Membership
  • About
No Result
View All Result
NEWSLETTER
Passive Components Blog
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication

    TAIYO YUDEN Launches Wire-Wound Automotive Power Inductors

    Skeleton Announces Agreement with Polish ZPUE for Rail Energy Storage Solutions

    European Electronic Components Distribution Under Strong Demand and Allocation in Q1 2022

    Tecate Releases Small-Cell 3V Supercapacitors

    3D Systems to Deliver 3D Printed RF Components for Satellite Applications

    Kyocera to Build its Largest Plant in Japan for Crystals and Semiconductor Packages

    TDK to Build New Automotive MLCC Production Plant in Japan

    Supercapacitors Assist Diesel Locomotives Start At Winter Conditions

    Bourns Releases High Current Shielded Power Inductor in Compact Size

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Soldering THT Components by SMD Reflow Assembly; WE Webinar

    Strain Gage Resistive Sensor Simulation; Vishay Video

    EMC Filters Explained – from Component to Design; WE Webinar

    How to Avoid EMI Noise on Data Cable by Isolated Power Module; WE askLorandt Video

    Introduction to Wireless Power Transfer; WE Webinar

    How to Pass Conducted Emissions Using Line Filters; WE Webinar

    EMI Debugging of a Low Power Buck Converter; WE Webinar

    Flat Wire Inductors for Electrical Cars; WE Webinar

    Ferrite Filter Features and Selection Guide; WE Webinar

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Preferred Suppliers
  • Who is Who
  • Events
  • Home
  • NewsFilter
    • All
    • Aerospace & Defence
    • Antenna
    • Applications
    • Automotive
    • Capacitors
    • Filters
    • Fuses
    • Inductors
    • Industrial
    • Integrated Passives
    • Market & Supply Chain
    • Medical
    • New Materials & Supply
    • New Technologies
    • Non-linear Passives
    • Oscillators
    • Passive Sensors
    • Resistors
    • RF & Microwave
    • Telecommunication

    TAIYO YUDEN Launches Wire-Wound Automotive Power Inductors

    Skeleton Announces Agreement with Polish ZPUE for Rail Energy Storage Solutions

    European Electronic Components Distribution Under Strong Demand and Allocation in Q1 2022

    Tecate Releases Small-Cell 3V Supercapacitors

    3D Systems to Deliver 3D Printed RF Components for Satellite Applications

    Kyocera to Build its Largest Plant in Japan for Crystals and Semiconductor Packages

    TDK to Build New Automotive MLCC Production Plant in Japan

    Supercapacitors Assist Diesel Locomotives Start At Winter Conditions

    Bourns Releases High Current Shielded Power Inductor in Compact Size

    Trending Tags

    • Ripple Current
    • RF
    • Leakage Current
    • Tantalum vs Ceramic
    • Snubber
    • Low ESR
    • Feedthrough
    • Derating
    • Dielectric Constant
    • New Products
    • Market Reports
  • VideoFilter
    • All
    • Antenna videos
    • Capacitor videos
    • Filter videos
    • Fuse videos
    • Inductor videos
    • Non-linear passives videos
    • Oscillator videos
    • Passive sensors videos
    • Resistor videos
    • Sensors

    Soldering THT Components by SMD Reflow Assembly; WE Webinar

    Strain Gage Resistive Sensor Simulation; Vishay Video

    EMC Filters Explained – from Component to Design; WE Webinar

    How to Avoid EMI Noise on Data Cable by Isolated Power Module; WE askLorandt Video

    Introduction to Wireless Power Transfer; WE Webinar

    How to Pass Conducted Emissions Using Line Filters; WE Webinar

    EMI Debugging of a Low Power Buck Converter; WE Webinar

    Flat Wire Inductors for Electrical Cars; WE Webinar

    Ferrite Filter Features and Selection Guide; WE Webinar

    Trending Tags

    • Capacitors explained
    • Inductors explained
    • Resistors explained
    • Filters explained
    • Application Video Guidelines
    • EMC
    • New Products
    • Ripple Current
    • Simulation
    • Tantalum vs Ceramic
  • Knowledge Blog
  • Preferred Suppliers
  • Who is Who
  • Events
No Result
View All Result
Passive Components Blog
No Result
View All Result

How can failures in vibration tests be avoided?

3.6.2019
Reading Time: 5 mins read
0 0
0
SHARES
184
VIEWS

Source: Alter Technology article

by María Teresa Rodríguez.

RelatedPosts

TAIYO YUDEN Launches Wire-Wound Automotive Power Inductors

Skeleton Announces Agreement with Polish ZPUE for Rail Energy Storage Solutions

European Electronic Components Distribution Under Strong Demand and Allocation in Q1 2022

Vibration tests are important to check the reliability of the components/assemblies. These tests can be a headache and suppose a great cost if the design of the device and the fixing tool are not properly done. Simulation tools are the key to anticipate the problems reducing costs and lead times and doEEEt gives you access, in just one site, to components and specifications from different systems and space agencies

Introduction to Modal Analysis:

All objects have a natural frequency inherent to each object, at which they vibrate when they are subjected to certain external forces. When a force is applied at the object’s natural frequency, it goes into resonance, and a higher amplitude vibration response is created. This situation can cause a collapse of the object. To avoid resonance, the frequency applied should not be at or near the natural frequency of the device or element under test. If the forcing frequency cannot be changed, natural frequency needs to be modified. This can only be done by altering the mass or its stiffness.

Simulation is used to validate the designs before manufacturing and testing phase in a laboratory. It is really useful to crosscheck the results of this analysis with the results obtained in the validation of the final assembly under the applicable vibration test and avoiding the resonance effect.

Vibration simulation, as others, is based in finite element analysis (FEA). The main goal of a modal analysis is to determinate the natural frequencies and vibration modes of an element during vibration. Usually to develop this type of analysis, Finite Elements Method (FEM) is used.

FEM is a method to solve differential equations and boundary value problems. It involves dividing a whole domain into simpler parts that are called finite elements.

A set of finite elements that make up the model to be simulated is called mesh. The mesh should be as regular and uniform as possible, and the size of the elements will depend on the precision needed to reproduce properly the geometry of the item to simulate. Once the model is ready, simulation tools proceed to the calculation and analysis of the results.

 

 

 

 

Example of a discretization model in finite elements

 

Step of a Correct Simulation:
To develop a correct simulation, it is necessary to follow the steps showed in the diagram below:

The success relies on the simulation of the natural frequencies of the DUT, the fixing tool and the assembly of both parts. The final simulation consists of the analysis of the forced response of the assembly under the conditions of the requirements. If any of the results fails, a re-design of any of the parts (the device, the fixing tool or the assembly) is required.

Requirements for the Simulation:

To perform all the simulations, the following information needs to be provided:

  • Materials and their mechanical properties of the fixing tools and the device under test (DUT). Also the surrounding elements, meaning the fitting interfaces of the tool with the shaker, in order to be able to do a proper model for the MEF analysis and to check with our vibration tool. This point is important because it may cause a big variation of the results due to the variation of the inner dynamics and damping of the DUT and are mainly known as boundary conditions.
  • Damping is a very important factor in the simulation. It is the way a system naturally dissipates energy. Its level cannot be studied by FEM. It is usually taken out by a Modal test. It can be used a value based on our experience in other projects or if it is necessary, we can use damping ranges in the FEM and see their effect.
  • By last, also is mandatory to know the full specification of the vibration profile. Sine, Random and/or Mechanical Shock vibration conditions. And their respective information, an axis of the vibration or the test which the information is related.

For vibration conditions, Alter Technology frequently tests according to the next specifications:

Title Reference Organization Parts
1 Generic Specification for Connectors Electrical Non-Filtered Circular and Rectangular ESCC 3401 European Space Components Coordination (ESCC) Connectors
7 High-reliability soldering for surface-mount and mixed technology ECSS-Q-ST-70-38C European Cooperation for Space Standardization (ECSS) Sodered system including Surface mounted devices (SMD), printed circuit boards (PCB)
10 Manual soldering of high-reliability electrical connections ECSS-Q-ST-70-08C European Cooperation for Space Standardization (ECSS) Sodered system including Surface mounted devices (SMD), printed circuit boards (PCB)
13 Test Method Standard, Microcircuits MIL-STD-883 TM2005 / TM2006 / TM2007 / TM2026 Defense and Logistic Agency Microcircuits
16 Test Methods for Semiconductor Devices MIL-STD-750 TM2016 TM2046 TM2051 TM2056 TM2057 MIL-STD-750 TM2016 / TM2046 / TM2051 / TM2056 / TM2057 Defense and Logistic Agency Semiconductors
19 Test Method Standard, Microcircuits MIL-STD-202 TM201 TM204 TM214 TM213 MIL-STD-202 TM201 / TM204 / TM214 / TM213 Defense and Logistic Agency Component parts

Related Posts

Automotive

TAIYO YUDEN Launches Wire-Wound Automotive Power Inductors

16.5.2022
11
Capacitors

Skeleton Announces Agreement with Polish ZPUE for Rail Energy Storage Solutions

16.5.2022
4
Aerospace & Defence

Tecate Releases Small-Cell 3V Supercapacitors

16.5.2022
9

Popular Posts

  • Ripple Current and its Effects on the Performance of Capacitors

    3 shares
    Share 3 Tweet 0
  • What is a Dielectric Constant of Plastic Materials ?

    4 shares
    Share 4 Tweet 0
  • Capacitor Selection for Coupling and Decoupling Applications

    28 shares
    Share 28 Tweet 0
  • Understanding High-Precision Resistor Temperature Coefficient of Resistance

    0 shares
    Share 0 Tweet 0
  • Why Low ESR Matters in Capacitor Design

    0 shares
    Share 0 Tweet 0

Newsletter Subscription

 

  • Home
  • Privacy Policy
  • EPCI Advertisement & Membership
  • About

© 2021 EPCI - Premium Passive Components Educational and Information Site

No Result
View All Result
  • Home
  • News
  • Video
  • Knowledge Blog
  • Preferred Suppliers
  • Events

© 2021 EPCI - Premium Passive Components Educational and Information Site

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.