Structural Strength Analysis of Dump Truck Cargo Body without Floor Beam

In order to analyze the structural strength of no floor beam dump truck cargo body, this paper established cargo body finite element analysis (FEA) model with the shell elements as basic element. The sand pressure on the cargo body was calculated by Rankine active earth pressure theory, and the Hyper works (a FEA software) was used to calculate the static strength and mode of the cargo body. By calculation, stress, deformation distribution and mode parameters of the cargo body were obtained, which provided reference for the cargo body improvement.

Research on Air Filters’ Low-Order Mode Characteristics Based on Hyper Works

The air filter in the course of their work will produce large vibration by the excitation source from the engine and other incentives will cause severe vibration response when the excitation frequency and its natural frequency close to shorten the life of the filter. Therefore, during the structural design must be modal analysis, its natural frequency to avoid the excitation frequency. This paper describes the application the HyperWorks right air filter of a particular model the steps of the modal analysis, its natural frequency, and the analysis and evaluation.

The Finite Element Analysis of Machine Tool Column of NC Gear Shaper Based on HyperWorks

The 3D model of machine tool column of NC gear shaper is created in Pro/E. This model is imported into the HyperWorks by STEP file. The column structural static stress and deformation, the five-step modal natural frequencies and mode of vibration are obtained by Hyper Works static and dynamic analysis. Based on the analysis results, this study offers a kind of reference comments for the design and improvement of machine tool column of the gear shaper.

Based on Topology Optimization Method the Cab Mount Bracket Lightweight Design

Truck cab mounting bracket is one of very important connecting elements. With the aid of Hyper Works software topology optimization and shape optimization techniques, the article elaborates that after realizing the cab mount bracket, the suspension support reduces weight leading to optimization design of the process. Meanwhile, it unifies the actual stress situation which has made the finite element validation comparison analysis comparing traditional optimization with the topology optimization design. The final results indicate that after weight loss optimized stent significantly reduce stress and the stress distribution is evener. Also, the relatively primary structure quality has obvious reduction which could satisfy the product the operational performance and the foundry technique performance requirement.

Study on Lightweight of the Engine Piston Based on Topology Optimization

The topology optimization and analysis were studied on the area of piston pin boss for a high-speed gasoline engine based on the variable density topology optimization method. Firstly, the model of the variable density topology optimization was founded. Then, the topology optimization and topology deconstruction on the piston pin boss were carried out by using Hyper Works. In this process, the minimum mass of piston was pursued as an objective function and the displacements of specified nodes on the piston skirt were made as constraints. Based on the topology optimization, the piston configuration of curved rod frame was designed. The complex stress of the piston before and after optimization was calculated respectively by ANSYS. The calculation results indicate that the piston mass can be lightened by 30% through optimizing under the same level of maximal stress, with satisfying the strength requirements. Therefore, the aim of piston lightweight is achieved, and there is no stress concentration in the area of the optimizing piston pin boss, which is propitious to the deformation compatibility of the piston pin boss.

Lifing of Turbomachinery Blades: A Process Driven Approach

Turbomachinery blades pass through several resonances during start up and shut down operations that cause cumulative damage leading to failures. It is important to estimate life of these blades at design stage so as to reduce prototype testing time. While the technologies required for lifing have been established, it is still a time consuming process to achieve the final result with calculations from different groups involved in solid and fluid mechanics and heat transfer. Here an attempt is made to reduce the design cycle time by way of combining these multifaceted technologies and develop a process driven approach to determine life using Hyper Works platform.