设计建筑和采矿设备 - 缩短设计周期,优化散装材料仿真设备性能
设计建筑和采矿设备的挑战
Manufacturers of heavy equipment are faced with a wide range of challenges. To meet the demand of the market and stay competitive they need to continuously improve the performance, efficiency, and reliability of their machines but also deliver products quickly while ensuring product innovation. This means shortening the design cycle and getting it right the first time is critical.
为设计建筑和采矿设备的复杂性增加了什么,机器必须在非常恶劣的环境中运行,并且需要在各种条件下表现良好。滑动装载机,挖掘机,反铲装载机或卡车机构都旨在处理可以在形状和形式变化的散装材料,从大型采石场到凝聚力的土壤,磨料矿石或自由流动的颗粒 - 提及一些。这些材料及其与机器部件的相互作用对设备性能有很大影响。
例如,一个挖掘机挖掘一堆of rocks will require a stronger bucket and much more power than for a pile of dry sand, designers also have to then account for different deformations on the bucket arm due to the loading. The level of wear on the bucket may also vary based on whether a material is an abrasive sandstone or a soft soil.
卡车身体需要快速装载和卸载材料,无需溢出,以高效并降低燃料消耗。在卸载期间,粘性材料可能粘在卡车身体上,或者磨料可能导致高水平的磨损。
在设计采矿转移滑槽和输送机系统时,系统的耐用性和可靠性是关键重要性,材料阻挡槽,或导致过度磨损可能导致滑槽清除或修复的次次操作。
了解散装材料如何与设备的行为是至关重要的,以确保高性能。客户要求定制的解决方案和信心,即设备将在一系列操作条件下按预期执行。
然而,预测散装材料行为是困难的砂,砾石,土壤,岩石和矿石具有非常多样化的性质。预期的材料行为的假设是具有挑战性的,可能导致昂贵的错误。物理测试昂贵且耗时,通常仅限于少量可用材料和运动。有更好的选择吗?
在设计过程中使用模拟
Computer-aided-engineering (CAE) tools such as finite element analysis and multi-body dynamics (MBD) are commonly used in the design process to perform virtual testing of equipment design. These techniques however, do not include the material itself that the machine is designed to handle.
这是散装材料仿真和离散元素建模(DEM)发挥作用的地方。DEM是一种用于建模散装材料的散装行为的粒子级数值方法。DEM提供了重要的工程洞察,以在一系列操作条件下材料如何与设备交互。
DEM软件如Altair EdemTMcan be used for the design, performance analysis, and optimization of construction and mining equipment such as dump trucks, excavators, loaders and dozers.
EDEM可以耦合到各种其他CAE工具,以在设备上执行多体动力学(MBD)分析或FEA。MBD需要允许复杂的动作和材料力 - 在设备设计和分析中包含的设备。
使用EDEM散装材料仿真技术为原始设备制造商(OEM)带来了众多好处 - 包括:
- Understand how different materials affect designs
- Virtually test designs for a wide range of materials with different properties
- 在每次相同的条件下执行虚拟重复测试
- 预测散装材料行为:识别堵塞,溢出和易于磨损的风险
- Improve equipment reliability and design for worst-case scenarios
- 获得对设备材料互动的关键洞察
这种洞察力为设计的信心带来了实际条件下的设计,可以导致正在进行的关键优化 - 导致耐用性和性能提高,降低燃料消耗和增加的有效载荷能力。
EDEM可以与FEA和MBD工具一起使用,使工程师能够进行广泛的分析,并通过添加现实散装材料负载来提高设计的准确性和性能。
Adding EDEM to the engineering toolkit can help engineers shorten design cycles, reduce product development time and costs, reduce the need and thus the cost of physical prototyping as well as driving product innovation.
了解有关EDEM仿真在施工和采矿设备设计中的各种应用的更多信息bob电竞官方on-demand webinar.