There are two basic approaches to the development of parts, systems, machines, vehicles and other engineering constructions
Fail Safe or Safe Life
Fail-Safe characterizes a part or equipment or function that responds in such a manner that minimal or no damage or danger for employees, operators and equipment occurs. For example, the wing construction of an airplane may begin to rupture. According to the fail-Safe Design Philosophy the construction design would ensure that damage would gradually expand rather than immediate total breakage occurring and would also ensure that other components and parts compensate and take over functions in such a manner that damage can be rectified during maintenance. Another example is the air-pressure breaking system on heavy transport vehicles. These are installed in such a way that, in case of failure of the compression system, a corresponding auxiliary pressure system (for example automatic brake suspension) will bring the vehicle to a halt to minimize damage.
Safe-Life design stands for products build for lasting durability to be overhauled or replaced once a certain operational life expectancy expires.
Both design philosophies have their own respective economic and operational safety areas of operation.
Fail Safe is implemented especially where gross weight plays a decisive role for profitability (airplanes and transport vehicles).
Safe Life is always then applied when long intervals between maintenance checks are preferred due to high maintenance costs (structural engineering, heavy machinery, etc. ) and/or gross equipment weight plays a subordinate role.
The disadvantage of products built according to Safe-Life considerations are that they are over-sized and often still operationally safe after expiry of their life expectancy but superseded due to change of design and development philosophy.
The aap Development Philosophy – The Nature Safe Design Philosophy
aap Ahrens, Ahrens & Partner GmbH uses a unique new development philosophy.
The most cost-effective design philosophies (Fail-Safe/Safe-Life) are coupled with fundamental environmental objectives.
Besides pure financial calculations for raw materials, personnel and production, all other aspects relating to the harnessing of energy during the generation process, utilization phase and the return of recyclables for re-use are all being considered.
Features of Cross Wind Systems:
Use of natural colours and shapes
Sensible blending with the environment
Harmonious matching of all building materials
Preferential treatment of renewable resources
Preferential treatment of recycled materials
Preferential treatment of recyclable materials
Avoidance of material waste
Furthermore, all aap products will be examined on any adverse environmental effects they could imply. Hence the environmental impact on fauna and flora concerning:
Fauna: threat potential, mating and breeding seasons, hibernation and migration seasons, hunting seasons
Flora: threat potential, seed and pollination times, fertilizing times and harvest seasons
Will be closely considered besides profitability matters.
Last of all, we also strive to design our products as much as possible in a manner to withstand vandalism and natural catastrophes. For this purpose detailed documentation will correspondingly be included in the main product specifications file. We want to create wind energy technology with the following image:
Close to nature
Blending with the landscape
Last of all, we also strive to design our products as much as possible in a manner to withstand vandalism and natural catastrophes. For this purpose detailed documentation will correspondingly be included in the main product specifications file.