This message shows up in the event of the following.
Please contact your administrator.
1. Server PC that has the floating license installed has been shut down.
2. Internet connection problems for the server PC.
3. Floating license has been expired.
A message saying “There is no valid Nodelock-License available.” appears when I start PIAnO.admin2019-05-03T14:09:04+09:00
– License that confirms the user’s PC using Hostname and MAC address.
– This license can only be used for a single PC.
– License that confirms server PC using IP address.
– As long as the IP address is available, the number of copies registered in the license can be used on any PC.
– A server PC must have the PLServer (License manager) installed.
How should I select which DOE to use?admin2019-05-03T13:26:57+09:00
PIAnO sampler supports a feature “Select Automatically”.
This feature suggest the user with an appropriate DOE when provided with information on the following: objective of DOE, number of levels, possible number of evaluations.
For more information on manual selection of DOE, please contact our technical support using email below.
How should I select which metamodel to use?admin2019-05-03T13:25:02+09:00
Simply put, it is linking PIAnO with external CAE tools.
Therefore, when the integration and automation is successfully established, PIAnO can automatically change values of the variables and obtain output results.
Is automation mandatory for design optimization?admin2019-05-03T11:28:29+09:00
It is possible to try various optimization strategies when the process is automated. However, it is not mandatory.
If process automation is not established, design optimization can be performed through the following steps:
DOE → Manually perform simulations for each sample → Generate metamodel → Approximate optimization
What is design optimization and how is it different from conventional design?admin2019-04-26T14:59:51+09:00
Design optimization is a numerical process of finding the values of input variables while meeting design requirements and defined limitations.
Conventional design process is based on designer’s know-how which makes prompt problem solving possible. However, when the number of design variables and requirements increase, it becomes harder to derive a solution. Additionally, the obtained solution may only be an adequate design.
Design optimization uses optimization techniques which helps engineers achieve much higher performances while satisfying the requirements. It can also be automated which greatly increases work efficiency.
What are design variables, objective, and constraints?admin2019-04-26T14:57:12+09:00
An industrial product does not have a deterministic input variable but has variations around a representative value. This causes variations in the performance around its representative value, where some input variations cause significant variations in the output than others.
In order to minimize the variation in the output, robust design optimization tries to make the influence of input variables as small as possible.
What is reliability based design optimization (RBDO)?admin2019-04-26T14:27:08+09:00
An industrial product does not have a deterministic input variable but has variations around a representative value. This causes variations in the performance around its representative value, which can lead to possibilities of infeasibilities that violate constraints.
Such possibility are called probability of failure and RBDO is an optimization technique used for making this probability to meet its desired target.
What is reliability analysis (RA)?admin2019-04-26T14:04:42+09:00
Reliability analysis is a method for calculating the stochastic properties of an output variable due to the variations in an input variable. It is used for calculating the probability of failure in reliability based design optimization (RBDO).